Absorbent article container

Abstract

A container (1) for an absorbent article (20) includes an absorbent article (20) and a container member (10) that contains the absorbent article (20), the container (1) for the absorbent article (20) being characterized in that at least a portion of the container member (10) has a paper layer (10a) formed of paper, and at least a portion of the paper layer (10a) has an unbleached pulp region that includes unbleached pulp.

Description

Technical Field

[0001] This invention relates to an absorbent article containment. Background Technology

[0002] Disposable absorbent articles such as diapers, sanitary napkins, and incontinence pads for infants and adults are typically sold in a protective container (e.g., a box or bag). As a container for absorbent articles, for example, a package comprising a stacked body including a first paper layer, a second paper layer, and a film layer sandwiched between the first and second paper layers is known (see, for example, Patent Document 1).

[0003] Furthermore, in such absorbent article containers, it is common practice to print information about the type or characteristics of the absorbent article contained in the container as a predetermined graphic on the surface of the container member, making it easy for the user to visually identify and inspect the absorbent article. For example, Patent Document 2 discloses a technology related to absorbent article packaging in which an image of the target wearer is displayed in high image quality on the container member (packaging) of the absorbent article, making it easier to identify the wearer as the target of the absorbent article.

[0004] Furthermore, in many cases, the containment member for such absorbent articles is configured to include a liquid-impermeable component (e.g., a vinyl resin or membrane) to protect the absorbent articles from external moisture. For example, Patent Document 3 discloses a technology related to a packaging bag in which the bag body (containment member) is formed of a film that is folded into a gusset at one end of the bag body, and the opposing surfaces of the film forming the gusset are joined together by a heat-sealing process to seal the bag body and form a handle.

[0005] Existing technical documents

[0006] Patent documents

[0007] Patent Document 1: Japanese Patent Application Publication No. 2019-59552

[0008] Patent Document 2: Japanese Patent Application Publication No. 2013-139294

[0009] Patent Document 3: Japanese Patent Application Publication No. 2017-178431 Summary of the Invention

[0010] The problem the invention aims to solve

[0011] The problem to be solved by the present invention is at least one of the following first to third problems.

[0012] The first problem is as follows. According to the packaging in Patent Document 1, synthetic paper, natural paper, etc., are used as the paper layers included in the stacked body constituting the packaging. However, when paper materials are used in packaging to contain absorbent articles, the commonly used bleached paper makes the contained absorbent articles susceptible to ultraviolet light. In particular, absorbent articles often include elastic members (e.g., rubber or polyurethane) for imparting tensile strength, liquid-impermeable membranes, etc. Therefore, there is a risk that these components constituting the absorbent article will yellow due to the influence of ultraviolet light.

[0013] The present invention addresses the conventional problems described above, and one aspect of the invention is to provide a containment having a paper layer, but with reduced effects of ultraviolet light on absorbent articles contained therein.

[0014] The second issue is that, in response to the rapid expansion of environmental and social problems in recent years, there is a need for environmentally friendly products from a sustainability perspective. In response to this need, for example, there are methods such as using natural materials like paper instead of plastic in product packaging, making "reduced plastic" products easily recognizable to users and making them more likely to associate them with the softness of absorbent materials.

[0015] However, even when the packaging is made of paper, if a highly vivid and clear graphic is printed on the packaging as in Patent Document 1, there is a risk that the vividness of the image will give the user a strong impression, and it makes it difficult to imagine the softness of the paper material.

[0016] The present invention was developed in view of the problems described above, and an aspect of the present invention is to provide an absorbent article containment comprising a containment member made of paper material, which makes it easier for the user to think of a soft impression.

[0017] The third issue is that, in order to address the rapid expansion of environmental and social problems in recent years, environmentally friendly products are needed from a sustainability perspective. For example, there is already attention on "reduced plastic" products that use natural materials such as paper or wood instead of plastic materials for product packaging, and membrane-based containment components, such as those in Patent Document 1, do not adequately meet users' expectations regarding environmental considerations.

[0018] Furthermore, in membrane containment members with a gusseted structure, such as in Patent Document 1, the surfaces of the membranes facing each other are firmly joined and locked by heat fusion. This makes it difficult for the user to open the locking part, and when the user attempts to force open the locking part, there is a risk that the membrane may rupture, and there is a risk that the absorbent item may not be properly removed.

[0019] The present invention was developed in view of the problems described above, and an aspect of the present invention is to make it easy to open the locking part in the receiving member of an absorbent article having a gusseted structure, while taking into account the environment.

[0020] Solution for solving the problem

[0021] A key aspect of the invention for addressing the first problem is an absorbent article containment comprising: an absorbent article; and a containment member that contains the absorbent article, the containment member comprising a paper layer, at least a portion of which is formed of paper and has an unbleached pulp region formed of unbleached pulp.

[0022] A key aspect of the invention for addressing the second problem is an absorbent article containment comprising: an absorbent article; and a containment member that contains the absorbent article, the containment member including an outermost layer, at least a portion of which is formed of paper, and at least a portion of a graphic is printed on an area of ​​the outermost layer having a Buick smoothness of less than 20 seconds.

[0023] A key aspect of the invention for addressing the third problem is an absorbent article containment having intersecting vertical, horizontal, and front-back directions. The absorbent article containment includes: an absorbent article; and a containment member that contains the absorbent article. The containment member includes an outermost layer and an innermost layer, at least a portion of the outermost layer being formed of paper and at least a portion of the innermost layer being formed of resin. The containment member has a gusseted structure, which is a structure in which the containment member is folded inward from both outer sides in the vertical direction such that the portions of the outermost layer face each other in the front-back direction. The containment member includes joints and non-joints at both ends in the horizontal direction. The joints are portions of the innermost layer that face each other and join in the front-back direction, and the non-joints are portions of the outermost layer that face each other but do not join in the front-back direction.

[0024] The features of the invention, in addition to those described above, will become clear from reading this specification with reference to the accompanying drawings.

[0025] The effects of the invention

[0026] The effect of the present invention on the first problem is that it can provide a containment that reduces the effect of ultraviolet light on absorbent articles contained therein while having a paper layer.

[0027] The effect of this invention on the second problem is that it can provide an absorbent article containment that includes containment components made of paper material, which makes it easier for the user to think of a soft impression.

[0028] The effect of this invention on the third problem is that, in the housing member of an absorbent article with a gusseted structure, the locking part can be opened more easily while taking the environment into account. Attached Figure Description

[0029] [ Figure 1 [Image 1] shows the front view and cross-sectional view of containment body 1.

[0030] [ Figure 2 ] Figure 2 A is a plan view of the housing component 10 as seen from the front. Figure 2 B is a plan view of the housing component 10 as seen from the rear.

[0031] [ Figure 3 ] Figure 3 A is shown along Figure 2 A schematic cross-sectional view of the section intercepted by line BB of A. Figure 3 B is shown along Figure 2 A schematic cross-sectional view of the section intercepted by line CC of A.

[0032] [ Figure 4 [Illustration 1] shows how to place the absorbent article 20 into the containment member 10 and remove it from the containment member 10.

[0033] [ Figure 5 ] Figure 5 A is a plan view of the absorbent item 20 housed in the housing member 10, viewed from the front in a front-back direction. Figure 5 B is a plan view of the absorbent item 20 housed in the housing member 10, viewed from the rear side in the front-rear direction.

[0034] [ Figure 6 [This is a plan view and a cross-sectional view of the absorbent article 20 in its unfolded and stretched state.]

[0035] [ Figure 7 [This is a front view of containment 1 in a state where it is reversed in the vertical direction.]

[0036] [ Figure 8 [This is a front view and a cross-sectional view of the disposable diaper housing 1001.]

[0037] [ Figure 9 ] Figure 9 A is a plan view of the housing component 1010 as seen from the front. Figure 9 B is a plan view of the housing component 1010 as seen from the rear.

[0038] [ Figure 10 ] Figure 10 A is shown along Figure 9 A schematic cross-sectional view of the section intercepted by line BB of A. Figure 10B is shown along Figure 9 A schematic cross-sectional view of the section intercepted by line CC of A.

[0039] [ Figure 11 [Illustration 1020] is a diagram showing how to place the absorbent item 1020 into the containment member 1010 and remove it from the containment member 1010.

[0040] [ Figure 12 [This is a plan view of the absorbent item 1020 housed in the housing member 1010, seen from the front in a front-back direction.]

[0041] [ Figure 13 [This is a plan view and a cross-sectional view of an absorbent item 1020 in its unfolded and stretched state.]

[0042] [ Figure 14 [This is a table showing the values ​​obtained by measuring the Bekk smoothness of sheet components (samples A to C) used as the outermost layer 1011a.]

[0043] [ Figure 15 ] Figure 15 A is a diagram showing the arrangement of graphic 1015 disposed on the receiving member 1010. Figure 15 B is shown along Figure 15 A schematic cross-sectional view of the section cut by line XX of A.

[0044] [ Figure 16 ] Figure 16 A is a three-dimensional view of the disposable diaper housing 2001 (housing housing 2001). Figure 16 B is shown along Figure 16 A schematic cross-sectional view of the section intercepted by line AA of line A.

[0045] [ Figure 17 ] Figure 17 A and Figure 17 B is a diagram showing the sheet member 2010s that constitute the housing member 2010.

[0046] [ Figure 18 ] Figure 18 A to Figure 18 D is a diagram showing the structure and manufacturing method of the housing component 2010.

[0047] [ Figure 19 ] Figure 19 A is shown along Figure 18 A schematic cross-sectional view of the section cut by line BB of D. Figure 19 B is shown along Figure 18 A schematic cross-sectional view of the section intercepted by line CC of D.

[0048] [ Figure 20 [This is a plan view of the absorbent item 2020 housed in the containment member 2010, seen from the front in a front-back direction.]

[0049] [ Figure 21 [This is a plan view and cross-sectional view of an absorbent item 2020 in its unfolded and stretched state.]

[0050] [ Figure 22 [This is a plan view of a housing 2001 in an example where a window 2016 is provided on the front surface of the housing member 2010.]

[0051] [ Figure 23 [ ] is a graph showing the coefficient of friction according to other embodiments.

[0052] [ Figure 24 [ ] is a graph showing the measurement results of the coefficient of friction according to other embodiments.

[0053] [ Figure 25 [Illustration] is a diagram showing the surface roughness (SMD) according to other embodiments.

[0054] [ Figure 26 [ ] is a graph showing the measurement results of surface roughness (SMD) according to other embodiments.

[0055] [ Figure 27 [Illustration] shows how to remove the absorbent article 20 while the hand is placed in the gap of the receiving member 10 according to other embodiments. Detailed Implementation

[0056] From the description in this specification and the accompanying drawings, at least the following will become clear.

[0057] An absorbent article containment includes: an absorbent article; and a containment member that contains the absorbent article, the containment member including a paper layer, at least a portion of the paper layer being formed of paper, the at least a portion of the paper layer having an unbleached pulp region formed of unbleached pulp.

[0058] According to the absorbent article containment, the absorbent article is contained within a containment member that includes an area of ​​unbleached pulp that is difficult for light to penetrate. This allows for reduction of the effects of ultraviolet light on the following components that are prone to yellowing: elastic components often included in absorbent articles, such as rubber or polyurethane; liquid-impermeable films; inks (inks used for printing on films, target strips, indicators, etc.), etc. Therefore, yellowing of the absorbent article can be suppressed.

[0059] In such an absorbent article containment, it is desirable to provide a pattern on at least a portion of the outer surface of the unbleached pulp area of ​​the containment member.

[0060] According to the absorbent article containment, when the graphic is placed on the outer surface of the paper layer formed of bleached pulp, the graphic may be unlikely to be visible because the contained absorbent article is transparent. This is because the unbleached pulp area has a greater thickness and is brown or dark brown, thus preventing the contents from being transparent and making the graphic easier to visually identify.

[0061] In such an absorbent article containment, it is desirable that the absorbent article containment has intersecting vertical, horizontal, and front-back directions, and that a pattern is provided on at least a portion of the outermost surface of the absorbent article, and that the pattern provided in the unbleached pulp area is a containment member side pattern, and the pattern provided on the absorbent article is an absorbent article side pattern, such that when the absorbent article is positioned at a specific position of the containment member, the containment member side pattern and the absorbent article side pattern have an overlapping portion when viewed in the front-back direction.

[0062] According to the absorbent article containment, the unbleached pulp area has a greater thickness and is brown or dark brown in color, so even when the pattern in the unbleached pulp area overlaps with the pattern of the absorbent article, the pattern of the absorbent article cannot be seen through. This allows the visibility of the pattern set on the unbleached pulp area to be maintained.

[0063] In such an absorbent article containment, it is desirable that the containment member includes a window area and a non-window area, the window area being at least partially formed by a resin sheet, the non-window area being the area where the paper and the resin sheet overlap, and the surface area of ​​the window area being smaller than the surface area of ​​the non-window area.

[0064] According to the absorbent object containment, the absorbent object in the containment can be identified through the window area, and by minimizing the window area, the possibility of being affected by ultraviolet light is reduced.

[0065] In such an absorbent material containment, it is desirable that the maximum density of the containment member side pattern is higher than the maximum density of the absorbent material side pattern.

[0066] According to the absorbent article containment, the absorbent article side pattern becomes less obvious than the containment member side pattern. That is, it is unlikely to be visually identifiable from the outside of the containment member. Therefore, the visibility of the containment member side pattern is further enhanced.

[0067] In such an absorbent article container, it is desirable that the absorbent article container also includes an opening for removing the absorbent article, and the opening has a seal that can be opened and closed.

[0068] According to the absorbent article containment, the containment member can be resealed even when it is opened once, so as to prevent the absorbent article from being exposed to ultraviolet light from the opening.

[0069] In such an absorbent article containment, it is desirable that the absorbent article containment has intersecting vertical, horizontal, and front-back directions, the absorbent article includes an indicator for detecting excrement, the containment member includes a window area and a non-window area, the window area being an area formed solely of a resin sheet, the non-window area being an area where the paper and the resin sheet overlap, and when the containment is upright and its lower end is in contact with the ground plane, at least a portion of the indicator overlaps with the non-window area when viewed in the front-back direction.

[0070] According to the absorbent article containment, in the indicator that overlaps with the non-window area during display, the reaction with ultraviolet light is suppressed, so that the indicator can be prevented from deteriorating due to ultraviolet light.

[0071] In such an absorbent article containment, it is desirable that the absorbent article includes: an abdomen that contacts the ventral side of the wearer, and a back that contacts the dorsal side of the wearer. The indicator of the absorbent article includes: a portion located on the abdomen and a portion located on the back, one of the abdomen and the back facing the window area, and the portion of the indicator located on the other of the abdomen and the back extending upward in a vertical direction longer than the portion of the indicator located on the abdomen and the back.

[0072] According to the absorbent article containment, compared to the case where the longer portion of the indicator faces the window area, the portion of the indicator that overlaps with the window area formed solely of a resin sheet is smaller, thus suppressing the indicator's reaction to ultraviolet light during display, etc. Therefore, this allows for the suppression of indicator degradation.

[0073] In such an absorbent article containment, it is desirable that, with the containment upright and its lower end in contact with the ground plane, the vertical length of the overlapping portion of the indicator and the non-window area is longer than the vertical length of the overlapping portion of the indicator and the window area.

[0074] According to the absorbent article containment, compared to cases where the vertical length of the overlapping portion of the indicator and the window area is relatively long, the reaction of the indicator with ultraviolet light during display can be suppressed. Therefore, this makes it possible to suppress the deterioration of the indicator.

[0075] In such an absorbent article containment, it is desirable that, in a state where the vertical relationship is opposite to that of the containment being upright and the lower end of the containment being in contact with the ground plane, at least a portion of the indicator overlaps with the non-window area when viewed in the front-back direction.

[0076] According to the absorbent article containment, the containment has gaps, so when the containment is inverted, the absorbent article moves to the upper part inside the containment. This makes it easier for the indicator portion to overlap with the non-window area, thus suppressing the indicator's reaction to ultraviolet light. Therefore, this helps to suppress the deterioration of the indicator.

[0077] In addition, an absorbent article containment includes: an absorbent article; and a containment member that contains the absorbent article, the containment member including an outermost layer, at least a portion of which is formed of paper, and at least a portion of a graphic is printed on an area of ​​the outermost layer having a Buick smoothness of less than 20 seconds.

[0078] According to the absorbent item containment, the graphic is printed in a manner that overlaps at least a portion of the outermost region with a Buick smoothness of less than 20 seconds, resulting in a blurred appearance in that region. This makes it easier for the user to visualize the texture or softness of the material containing the containment component or the absorbent item contained therein.

[0079] In such an absorbent material container, it is desirable that the graphic be formed from water-based ink.

[0080] According to the absorbent article container, an environmentally friendly container can be achieved by using water-based ink, which is safer and has less odor than oil-based inks that use organic solvents, etc. Furthermore, since the outermost layer, which serves as the printing medium, is made of paper, the water-based ink adheres easily, allowing for stable printing of even seemingly blurry graphics.

[0081] In such an absorbent article containment, it is desirable that the absorbent article containment has intersecting vertical, horizontal, and front-back directions, the shape including a first part and a second part different from the first part, and the first part and the second part having different positions in the front-back direction.

[0082] According to the absorbent object containment, the first and second parts are positioned differently in the front-to-back direction, thus the shape is recognized in three dimensions. Therefore, compared to recognizing the shape in a planar view, the shape of the three-dimensionally expanded containment member is emphasized, which allows the user to have a soft visual impression of the containment.

[0083] In such an absorbent article containment, it is desirable that the absorbent article containment also includes side seals at both ends in the left-right direction, wherein the side seals are portions of surfaces constituting the containment member that are adjacent and fused together in the front-back direction, the surfaces being different from each other, a first portion being disposed at a position that does not overlap with the side seals, and a second portion being disposed at a position that overlaps with the side seals.

[0084] According to the absorbent article containment, the graphic is configured to span a planar region overlapping with the side seals and a curved region not overlapping with the side seals, which makes the graphic perceived as a more complex three-dimensional shape. This makes it easier for the user to visualize the softness of the containment.

[0085] In such an absorbent article containment, it is desirable that the innermost layer is stacked inside the outermost layer, and the innermost layer is at least partially formed of resin.

[0086] According to the absorbent article containment, an innermost layer made of a highly moisture-resistant resin is stacked on the inside of an outermost layer made of paper, thereby preventing moisture (such as humidity) from penetrating from the outside of the containment member into the inside. Furthermore, this prevents ink constituting the pattern printed on the outermost layer from penetrating from the surface to the inside in the thickness direction, which could lead to color contamination due to contact with the absorbent article. Therefore, the quality of the absorbent article contained in the containment member can be easily maintained at an excellent level.

[0087] In such an absorbent article containment, it is desirable that the containment member include a window portion of the innermost layer exposed to the surface side, the window portion being formed by cutting off at least a portion of the outermost layer.

[0088] According to the absorbent item container, the user can visually identify a soft absorbent item, such as a diaper, from the outside of the container through the window. Therefore, this makes it easier for the user to recall the soft visual impression of the container.

[0089] In such an absorbent article containment, it is desirable that a pattern is provided on at least a portion of the outermost surface of the absorbent article, the pattern of the absorbent article being visually identifiable from the outside of the containment member through the window, and that the maximum concentration of the pattern provided on the outermost layer of the containment member is higher than the maximum concentration of the pattern provided on the outermost surface of the absorbent article.

[0090] According to the absorbent article containment, since the graphic of the absorbent article, which is visually identifiable through the window, appears lighter than the graphic of the containment member, the softness of the absorbent article itself is emphasized, which enhances the overall soft visual impression of the containment.

[0091] In such an absorbent article containment, it is desirable that at least a portion of the outermost layer comprises an unbleached pulp region formed of unbleached pulp, and that the graphic is printed in the unbleached pulp region.

[0092] According to the absorbent article containment, the graphic is printed on a layer of paper made from unbleached pulp that is not stained or bleached, and has a relatively large thickness that is unlikely to show through. This makes it unlikely that visibility will deteriorate even when the printed graphic is blurred. Therefore, this allows for the suppression of graphic visibility degradation while giving the user a soft visual impression of the containment.

[0093] In such an absorbent article containment, it is desirable that the innermost layer is stacked inside the outermost layer, the innermost layer being at least partially formed of resin, and the average value of the dynamic friction coefficient of the innermost layer of the containment member is less than the average value of the dynamic friction coefficient of the outermost layer of the containment member.

[0094] According to the absorbent article containment, since the average value of the dynamic friction coefficient of the outermost layer of the containment member is relatively large, the surface shape of the outermost layer is prone to being uneven, which makes it easier to form (print) blurred patterns. In addition, since the average value of the dynamic friction coefficient of the innermost layer of the containment member is relatively small, the frictional force generated between the innermost layer and the absorbent article is reduced, which makes it possible to smoothly perform the operation of removing the absorbent article.

[0095] Furthermore, an absorbent article containment having intersecting vertical, horizontal, and front-back directions, the absorbent article containment comprising: an absorbent article; and a containment member for containing the absorbent article, the containment member comprising an outermost layer and an innermost layer, at least a portion of the outermost layer being formed of paper, at least a portion of the innermost layer being formed of resin, the containment member having a gusseted structure, the gusseted structure being a structure in which the containment member is folded inward from both outer sides in the vertical direction such that the portions of the outermost layer face each other in the front-back direction, the containment member comprising a joining portion and a non-joining portion at both ends in the horizontal direction, the joining portion being the portion of the innermost layer facing each other and joining in the front-back direction, the non-joining portion being the portion of the outermost layer facing each other and not joining in the front-back direction.

[0096] According to the absorbent article container, the outermost layer of the locking portion provided at both ends of the paper-containing container member has a non-jointing portion. Therefore, compared with the case where the entire locking portion is welded in a conventional film-made container member, the joint strength is not too strong, making it easier to open the locking portion. In addition, since the packaging surface is made of paper, this makes it easy for users to associate it with an environmentally friendly product.

[0097] In such an absorbent article containment, it is desirable that the entire portion of the outermost part facing each other in the front-back direction at both ends of the containment member in the left-right direction is the non-jointing portion.

[0098] According to the absorbent article containment, when the containing member is opened, the two opposing surfaces (outermost parts) facing each other in the front-back direction are configured not to engage with each other, which makes it easier to separate the two opposing surfaces in the front-back direction. Therefore, this allows the user to easily open the containment by peeling off the locking part.

[0099] In such an absorbent article containment, it is desirable that the containment member includes a side seal and a rear seal. At both ends in the left-right direction, the side seal is a portion of the resin constituting the innermost layer that is fused together in an adjacent state in the front-back direction. At the rear end in the front-back direction, the rear seal is a portion of the resin constituting the innermost layer that is fused together in an adjacent state in the front-back direction.

[0100] According to the absorbent article containment, by using a welding method to join the facing portions of thermoplastic resin sheet components, the two sides in the left-right direction and the rear side in the front-back direction are firmly sealed. That is, the innermost layer of the containment space surrounding the containment components is completely sealed. Therefore, it is very difficult for moisture to enter the interior of the containment, which further enhances the moisture resistance.

[0101] In such an absorbent article containment, it is desirable that, in the containment member, in a region having a predetermined width from the outermost end in the left-right direction, the innermost portions facing each other in the front-back direction do not engage with each other.

[0102] According to the absorbent article containment, a so-called dry edge is formed at the outer ends in the left and right directions where the sheet member portions (innermost layer) do not join to each other. Therefore, in the operation of opening the containment by peeling off the locking portions located at both ends in the left and right directions, the dry edge serves as the starting point for peeling off the locking portions (sealing portions), and this makes it easier to perform the opening operation.

[0103] In such an absorbent article containment, it is desirable to have a pattern on at least a portion of the outermost layer, and the pattern is formed by water-based ink.

[0104] According to the absorbent article containment, compared to using oil-based ink to form images, using water-based ink allows for a reduction in the amount of petroleum-derived organic solvents used. Therefore, this makes the containment more environmentally friendly.

[0105] In such an absorbent article containment, it is desirable that the containment member include a window portion of the innermost layer exposed to the surface side, the window portion being formed by cutting off at least a portion of the outermost layer.

[0106] According to the absorbent item container, the user can visually identify the interior of the container member through the window. This allows the user to visually recognize that a soft, absorbent item is contained within the container member. Therefore, it makes it easier for the user to recall the material texture or soft visual impression of paper as the entire container.

[0107] In such an absorbent article containment, it is desirable that a containment member side pattern is disposed on at least a portion of the outermost layer, an absorbent article side pattern is disposed on at least a portion of the outermost surface of the absorbent article, the absorbent article side pattern can be visually identified from the outside of the containment member through the window, and the maximum concentration of the containment member side pattern is higher than the maximum concentration of the absorbent article side pattern.

[0108] According to the absorbent article containment, since the absorbent article side graphic, which is visually identifiable through the window, appears lighter than the containment member side graphic, the softness of the absorbent article itself is emphasized, which enhances the overall soft visual impression of the containment.

[0109] In such an absorbent article containment, it is desirable that the outermost layer be formed of paper made from unbleached pulp.

[0110] The absorbent item container uses paper made from unbleached pulp, which makes it easier to impart a natural texture and allows the user to feel the texture of the paper material. This makes it easier for the user to perceive the container as an environmentally friendly product. It also makes it less likely that the outermost layer will tear when the container is opened by peeling off the locking parts located at the left and right ends, making it easy to remove the absorbent item.

[0111] In such an absorbent article containment, it is desirable that the average value of the dynamic friction coefficient of the innermost layer of the containment member is less than the average value of the dynamic friction coefficient of the outermost layer of the containment member.

[0112] According to the absorbent article containment, by setting the average value of the dynamic friction coefficient of the innermost layer of the containment member to be less than that of the outermost layer, it becomes easier to smoothly perform the operation of removing the absorbent article while maintaining the appearance of the containment as paper.

[0113] ===First Implementation Method===

[0114] <Basic Structure of Absorbent Item Container 1>

[0115] The first embodiment of the absorbent article housing according to the present invention is illustrated below by way of an example of a disposable diaper housing 1 (hereinafter also referred to as "housing 1") that houses a disposable diaper. However, the absorbent article housed in the housing 1 is not limited to disposable diapers, but is also applicable to sanitary napkins, panty liners, lightweight incontinence pads, etc., that can be housed in the housing member.

[0116] Figure 1 These are front and cross-sectional views of the containment body 1. The containment body 1 includes: a containment member 10 as a bag-shaped member; and a plurality of absorbent items 20 (disposable diapers) contained in the containment member 10. Furthermore, the containment body 1 (containment member 10) has intersecting vertical, horizontal, and front-back directions. Figure 1 The front view shows the containment body 1 as seen from the front in a front-to-back direction, and Figure 1 The cross-sectional view shows the section taken along line AA in the front view. Furthermore, Figure 1 The diagram shows the container 1 standing upright with its lower end in contact with the ground plane.

[0117] like Figure 1 As shown, the receiving member 10 has a receiving space (alongside) Figure 1 The area represented by the shaded portion in the cross-section cut by line AA), this containing space has a vertical orientation from one side ( Figure 1 The upper side of the middle faces the other side. Figure 1 The lower part of the structure has a roughly triangular cross-sectional shape, with its width increasing in the front-to-back direction. The containment space can accommodate one or more absorbent items 20. Multiple absorbent items 20 ( Figure 1 The four (in the middle) are stacked in the front-to-back direction and can be freely inserted into and removed from the opening 10pn (described later). The opening 10pn is formed on the upper side (vertical direction) of the housing member 10.

[0118] (Containing component 10)

[0119] Figure 2 A is a plan view of the housing component 10 as seen from the front. Figure 2 B is a plan view of the housing component 10 as seen from the rear. Figure 3 A is shown along Figure 2 A schematic cross-sectional view of the section intercepted by line BB of A, and Figure 3 B is shown along Figure 2 A schematic cross-sectional view of the section intercepted by line CC of A.

[0120] In this embodiment, the receiving member 10 has a front surface 11, a rear surface 12, and a bottom surface 13. Furthermore, as... Figure 3 A and Figure 3 As shown in Figure B, the receiving member 10 includes: an outermost layer 10a constituting the outer surface of the receiving member 10; and an innermost layer 10b constituting the inner surface. More specifically, the front surface 11, rear surface 12, and bottom surface 13 of the receiving member 10 have a double-layer structure in which the outermost layer 10a and the innermost layer 10b are joined together. However, the front surface 11, rear surface 12, and bottom surface 13 may have three or more layers, or some of the front surface 11, rear surface 12, and bottom surface 13 may have a single-layer structure.

[0121] At least a portion of the outermost layer 10a of the containment member 10 is a paper layer (hereinafter also referred to as paper layer 10a) formed of paper. Here, "paper" refers to paper made by gluing together plant fibers, etc., and in a broader sense, it includes not only synthetic paper made using synthetic polymer materials, but also paper blended with fibrous inorganic materials. Since the outermost layer 10a disposed on the outermost side of the containment body 1 is formed of paper material, it is easier for the user to recognize the containment body 1 as a so-called "reduced plastic" product based on a reduction in the amount of petroleum materials, giving the containment body 1 an environmentally friendly visual impression.

[0122] On the other hand, if commonly used bleached paper is used as the paper for the paper layer 10a, there is a risk that the absorbent article 20 contained therein is susceptible to ultraviolet light. In particular, many commercially available absorbent articles include elastic components (e.g., rubber or polyurethane) for imparting tensile strength, liquid-impermeable films, inks (inks for printing on films, target strips, indicators, etc.), bleached pulp that has undergone bleaching treatment, etc. There is a risk that these components constituting the absorbent article will yellow due to the influence of ultraviolet light. In contrast, in this embodiment, the containing member 10 has an unbleached pulp area formed from unbleached pulp in the paper layer 10a (outermost layer 10a). Unbleached pulp is pulp that has not undergone bleaching treatment, and so-called unbleached paper can be used for the unbleached pulp area formed from such unbleached pulp. In this embodiment, the entire paper layer 10a (outermost layer 10a) is an unbleached pulp area, but the construction is not limited to this. Unbleached pulp areas can be provided on at least a portion of paper layer 10a to reduce the effects of ultraviolet light in any range.

[0123] Furthermore, unbleached paper contains approximately 10.6% lignin, and has a higher lignin content than bleached paper (ordinary white paper) made from bleached pulp. Lignin is a component that absorbs ultraviolet light, and unbleached paper with a higher lignin content readily absorbs ultraviolet light compared to bleached paper.

[0124] Therefore, the outermost layer 10a (paper layer 10a) of the housing member 10 absorbs ultraviolet light, which reduces the impact of ultraviolet light on the easily yellowing constituent components of the absorbent article 20 housed therein, namely, elastic members (e.g., rubber, not shown), liquid-impermeable films (such as the non-skin side sheet 22c described later), inks for printing predetermined constituent materials (films, target strips, indicator 23 described later, etc.), and bleached pulp contained in large quantities in the absorbent core described later. Therefore, yellowing of the absorbent article can be suppressed.

[0125] It should be noted that the light transmittance of unbleached paper used in unbleached pulp areas is preferably in the range of 0% to 70%. Furthermore, the thickness of the unbleached paper is preferably 100 to 200 μm, and its basis weight is preferably 60 to 120 g / m³. 2 .

[0126] When bleaching pulp fibers, alkali and chlorine-based chemicals are often used for the bleaching process. Unbleached paper, formed from unbleached pulp, is environmentally friendly because the use of these chemicals can be reduced in the manufacturing process. Furthermore, unbleached paper has a natural texture due to its brown or dark brown color, and users can easily feel warmth from the packaging (container 1). In this respect, the containment member 10 with an unbleached pulp area allows consumers to recognize that the product is environmentally friendly.

[0127] Furthermore, in the front surface 11 of the housing member 10, a predetermined pattern 15 may be provided on at least a portion of the surface of the outermost layer 10a (the front side in the front-rear direction) (i.e., the outer surface of the paper layer 10a, which is the unbleached pulp area). The pattern 15 is provided to allow the user to visually identify various information related to the housing 1 (absorbent article 20). In this embodiment, as... Figure 2 As shown in Figure A, Figure 15 provides information related to the name (product name) or characteristics (materials used) of the absorbent article 20, an image (e.g., a cotton illustration) used to evoke the image of the absorbent article 20, and the size of the target wearer. Additionally, Figure 15 may provide various certification marks (not shown).

[0128] The pattern 15 is set on the outer surface of the paper layer 10a, which is an unbleached pulp area. Assuming the paper layer 10a is formed from bleached pulp, and the pattern 15 is set on the outer surface of such a paper layer, the bleaching process makes the contained absorbent article 20 transparent, thus creating a risk that the pattern 15 may be difficult to see. In this respect, the paper layer 10a (unbleached pulp area) of this embodiment has a greater thickness and is brown, dark brown, etc. This prevents its contents from being transparent, thus maintaining the visibility of the pattern 15.

[0129] The graphic 15 is printed on the surface side of the outermost layer 10a using a predetermined water-based ink via gravure or flexographic printing. Typically, water is used as a solvent in many cases for water-based inks, making them environmentally friendly because they are safer and have less odor compared to oil-based inks that use organic solvents. However, water-based inks have weaker adhesion to the printing medium compared to oil-based inks, making it difficult to use them in products intended for the market in some situations. In contrast, in this embodiment, since the outermost layer 10a, which serves as the printing medium, is made of paper, the water-based ink adheres easily, allowing for a stable formation of the graphic 15. Therefore, from an environmental perspective, using water-based ink as the ink for printing the graphic 15 on the receiving member 10 in this embodiment is also suitable.

[0130] At least a portion of the innermost layer 10b of the housing member 10 is formed of a resin sheet. Here, the "resin" constituting the resin sheet is a synthetic resin composed of a polymer compound, and thermoplastic resins such as polyethylene, polypropylene, polyvinyl chloride, polystyrene, polycarbonate, and polyethylene terephthalate (PET) can be used, for example. Furthermore, the innermost layer 10b is formed of a transparent resin, so that the other side (inner side) can be visually identified from at least one side (outer side) in the thickness direction. In this embodiment, it is desirable that the resin constituting the innermost layer 10b is colorless and transparent, so that the absorbent article 20 housed inside the housing member 10 can be more easily visually identified from the outside of the housing 1 through the window area 16 described later.

[0131] Furthermore, as the aforementioned resin sheet, a laminated film, for example, composed of polyethylene (PE) and polyethylene terephthalate (PET) stacked together, can be used. In the laminated film disposed on the front surface 11 and rear surface 12 of the housing member 10, the thickness of the polyethylene terephthalate (PET) is preferably 12 μm, and the thickness of the polyethylene (PE) is preferably about 30 μm. In the laminated film disposed on the bottom surface 13, the thickness of the polyethylene terephthalate (PET) is preferably 12 μm, and the thickness of the polyethylene (PE) is preferably about 60 μm. By using this laminated film as the innermost layer 10b and laminating the innermost layer 10b with the outermost layer 10a formed of paper, a joint (made of...) can also be formed where the innermost layer and the outermost layer 10a are joined together. Figure 3 (The dashed line in A indicates this). In this way, a surface (front surface 11, back surface 12, or bottom surface 13) is formed with the surface side (outer side) made of paper and the inner side (inner side) made of resin.

[0132] When the housing member 10 is formed, the innermost layer 10b of the front surface 11 and the innermost layer 10b of the rear surface 12 are stacked on top of each other in the front-rear direction, facing each other (see [link]). Figure 3 A and Figure 3B). Furthermore, in the lower end of the housing member 10 in the vertical direction, when folded in the vertical direction with the outermost layer 10a facing each other, the bottom surface 13 is disposed between the front surface 11 and the rear surface 12 in the front-rear direction. In addition, the surfaces that are adjacent to each other in the front-rear direction (thickness direction) are joined together in a predetermined area.

[0133] Specifically, such as Figure 3 As shown in Figure A, at the lower end in the vertical direction, the innermost layer 10b of the front surface 11 and the innermost layer 10b of the bottom surface 13 constituting the housing member 10 are adjacent to each other in the front-rear direction and are joined together. The innermost layers 10b are joined together, for example, by a known welding method such as heat fusion. Both innermost layers 10b are resin sheet members and are thermoplastic, so the welding method can join the opposing sheet members together with sufficient strength. In the same manner, at the lower end in the vertical direction, the innermost layer 10b of the rear surface 12 and the innermost layer 10b of the bottom surface 13 are joined together (welded). Thus, a structure is formed by... Figure 3 The wavy line in A indicates the bottom sealing part 19. (See example...) Figure 2 As shown in the shaded area, at the lower end of the housing member 10 in the vertical direction, surfaces 11, 12 and 13 are continuously sealed by the bottom sealing portion 19 in the horizontal direction.

[0134] Furthermore, at the ends in the left and right directions, such as Figure 3 As shown in Figure B, the innermost layer 10b of the front surface 11 and the innermost layer 10b of the rear surface 12, which face each other, are joined. The innermost layers 10b are also joined to each other by a welding method. Similarly, at the lower ends in the vertical direction, the innermost layer 10b of the front surface 11 and the innermost layer 10b of the bottom surface 13 are welded at their left-right ends, and the innermost layer 10b of the rear surface 12 and the innermost layer 10b of the bottom surface 13 are welded at their left-right ends. Therefore, a structure formed by... Figure 3 The wavy line in B indicates a pair of side seals 18. (See example...) Figure 2 As shown in the shaded area, at both ends of the housing member 10 in the left and right directions, surfaces 11, 12 and 13 are continuously sealed by the side sealing portion 18 in the up and down direction.

[0135] As described above, in the bottom seal 19 and the pair of side seals 18, the following resin sheet members (low moisture permeability material) are fused together adjacent to each other in the front-rear direction: a resin sheet member disposed on the innermost layer 10b of one of the plurality of surfaces constituting the housing member 10 (e.g., front surface 11); and a resin sheet member disposed on the innermost layer 10b of a surface different from said one surface (e.g., bottom surface 13). This makes it less likely for moisture to enter the interior of the housing 1 (enter the housing space of the housing), thereby further enhancing moisture resistance.

[0136] It should be noted that in the bottom surface 13 folded in the vertical direction, the portions of the outermost layer 10a that face each other in the front-back direction are also joined together at both ends in the left-right direction and at the lower end in the vertical direction of the receiving member 10. Since the outermost layer 10a is formed of paper, these portions are joined together by using an adhesive (made by...). Figure 3 (The dashed line in B indicates this).

[0137] As described above, in the edge portion of the receiving member 10, the two ends in the left-right direction and the lower end in the up-down direction are continuously locked by the opposite sealing portions 18 and 18 and the bottom sealing portion 19. Meanwhile, in the edge portion of the receiving member 10, the upper end in the up-down direction is not locked. Therefore, the receiving member 10 has an opening 10pn on the upper side in the up-down direction (see below). Figure 4 ), and is bag-shaped with a bottom surface 13.

[0138] The opening 10pn of the receiving member 10 has a sealing portion 14 that can be opened and closed. The sealing portion 14 is composed of a pair of resin zippers or the like arranged in the left-right direction, and as... Figure 3 As shown in Figure A, the innermost layer 10b of the front surface 11 and the innermost layer 10b of the rear surface 12 are respectively provided. The pair of sealing portions 14 and 14, which face each other in the front-rear direction, are pressed together and engage, thereby closing the opening 10pn and sealing the receiving space of the receiving member 10 (see Figure A). Figure 1 Furthermore, by pulling the joined sealing portions 14 and 14 apart toward opposite sides in the front-rear direction, the opening 10pn is formed again. As described above, the opening 10pn of the receiving member 10 can be freely opened and closed through the sealing portion 14.

[0139] Figure 4 This diagram illustrates how the absorbent article 20 is placed into and removed from the containing member 10. Figure 4 As shown, the opening 10pn is formed on the upper side in the vertical direction by pulling open the sealing part 14 of the receiving member 10, so that the absorbent article 20 can be taken out and placed through the opening 10pn. In addition, after the operation of taking out the absorbent article 20 is performed, the opening 10pn can be closed by resealing the sealing part 14, so that the absorbent article 20 can be prevented from being exposed to ultraviolet light from the opening 10pn.

[0140] In addition, such as Figures 1 to 3As shown, the front surface 11 of the housing member 10 has a window region 16 and a non-window region 17. The window region 16 is formed at least partially solely of a resin sheet serving as the innermost layer 10b, and the non-window region 17 is the overlapping area of ​​the paper serving as the outermost layer 10a and the resin sheet serving as the innermost layer 10b. The user can visually identify the interior of the housing member 10 from the front side of the housing 1 through the window region 16. Furthermore, it is desirable that the surface area of ​​the window region 16 is smaller than the surface area of ​​the non-window region 17. Reducing the size of the window region 16 to a necessary minimum minimizes the possibility of exposure to ultraviolet light.

[0141] (Absorbent Items 20)

[0142] Figure 5 A is a plan view of the absorbent item 20 housed in the housing member 10, viewed from the front (ventral) side in the front-back direction. Figure 5 B is a plan view of the absorbent item 20 housed in the housing member 10, seen from the rear (back) side in the front-rear direction. Figure 6 These are plan and cross-sectional views of the absorbent article 20 in its unfolded and stretched state. Figure 5 A, Figure 5 B and Figure 6 In this embodiment, the absorbent article 20 has longitudinal and transverse directions that intersect each other. The longitudinal direction corresponds to the length direction of the absorbent article in a stretched state, and is along... Figure 1 The vertical direction within. The horizontal direction corresponds to the short side direction of the absorbent material in a stretched state, and is along... Figure 1 The direction of left and right.

[0143] exist Figure 5 A, Figure 5 B and Figure 6 In the example shown is a strip-type disposable diaper, which is to be housed in the housing member 10. The absorbent article 20 includes an outer body 21, an inner body 22, an indicator 23, and a fastening strap 24.

[0144] In addition, such as Figure 6 As shown, the absorbent garment 20 includes an abdomen 26 and a back 27. The abdomen 26 is the portion positioned on the wearer's abdomen when the absorbent garment 20 is worn, and... Figure 6 The center position CL, relative to the length direction, is located on the ventral side. The back 27 is the portion located on the wearer's back side when the absorbent article 20 is worn, and... Figure 6 The central position CL, relative to the length direction, is located on the dorsal side.

[0145] The outer casing 21 is an outer component disposed on the non-skin side of the absorbent article 20 and supporting the inner casing 22. Suitable nonwoven fabrics, such as spunbond / meltblown / spunbond (SMS) nonwoven fabrics, can be used as the outer casing 21. Furthermore, a predetermined pattern 25 can be provided on at least a portion of the non-skin side surface of the outer casing 21 (i.e., the outermost surface of the absorbent article 20). The pattern 25 is provided in the same manner as the pattern 15 provided on the receiving member 10 to allow the user to visually identify information about the absorbent article 20. In this embodiment, as... Figure 5 A and Figure 5 As shown in Figure B, graphic 25 provides information related to the name (product name) or characteristics (materials used) of the absorbent article 20, and images (e.g., cotton illustrations) used to evoke the image of the absorbent article 20. Additionally, the size or other information of the target wearer may be displayed.

[0146] The inner body 22 is a component corresponding to the absorbent body that absorbs excrement. The inner body 22 includes: an absorbent body 22a; a skin side sheet 22b disposed on the skin side in the thickness direction relative to the absorbent body 22a; and a non-skin side sheet 22c disposed on the non-skin side in the thickness direction relative to the absorbent body 22a.

[0147] The absorbent 22a is a component for absorbing and retaining excretions such as urine, and is formed by wrapping an absorbent core having a liquid-absorbing material with a liquid-permeable core-wrapping sheet. The liquid-absorbing material constituting the absorbent core can be made of, for example, liquid-absorbing fibers (e.g., pulp fibers) or liquid-absorbing particles (e.g., superabsorbent polymers, so-called SAP). Furthermore, as the core-wrapping sheet, for example, tissue paper can be used.

[0148] The skin-side sheet 22b is a component that comes into contact with the wearer's skin when the absorbent article 20 is worn, and is a liquid-permeable sheet component that allows excrement to permeate from the skin side to the non-skin side in the thickness direction and to move the excrement to the absorbent body 22a. A flexible sheet component such as a breathable nonwoven fabric can be used as the skin-side sheet 22b. The non-skin-side sheet 22c is a liquid-impermeable sheet component that inhibits the leakage of liquid (e.g., urine) absorbed by the absorbent body 22a to the non-skin side (the side of the wearer's clothing). A flexible sheet component such as a polyethylene (PE) resin film can be used as the non-skin-side sheet 22c.

[0149] Indicator 23 is a detection part for detecting at least one of urine and feces, and is disposed in the thickness direction between absorbent body 22a and non-skin side sheet 22c. In this embodiment, indicator 23 is configured to have a pH indicator used in conventional diapers. For example, the pH of excrement is used as a reaction factor, and the excretion of urine or feces is detected when the indicator exhibits a color reaction upon contact with urine or feces. That is, indicator 23 includes pigment, and when the pigment develops color and the color changes, the user or others can distinguish that urine or feces has been excreted.

[0150] Typically, when pigments are exposed to ultraviolet light, including sunlight, the internal bonds of the compound are broken and its color fades. That is, when indicator 23 is exposed to sunlight (ultraviolet light) for a long time, the color reaction of indicator 23 fades and the color change decreases, making it difficult for users to distinguish whether urine or feces have been excreted.

[0151] In addition, such as Figure 5 A and Figure 5 As shown in Figure B, the indicator 23 is positioned between the abdomen 26 and the back 27 of the absorbent article 20, and the vertical length of the indicator 23 can be equal in the abdomen 26 and the back 27. However, in this embodiment, the ventral indicator 23a is positioned on the side of the abdomen 26. Figure 5 A) The rear-side indicator 23b, positioned on the back side 27, is located in the vertical direction. Figure 5 B) Long. Furthermore, in Figure 5 A and Figure 5 In B, an indicator 23, which extends longitudinally, is provided in the transverse central portion. However, the configuration and number of the indicator 23 can be appropriately changed depending on the type and amount of excrement (urine or feces) to be detected.

[0152] The fastening straps 24 are paired engagement members located in the longitudinal rear end of the outer garment 21, extending outwards on both sides. Each fastening strap 24 has a hook-and-loop fastener, which includes a hook for engaging fibers such as nonwoven fabric. When the absorbent garment 20 is worn, the pair of fastening straps 24 are engaged in the ventral region of the outer garment 21 (nonwoven fabric) by the engaging force of the hook-and-loop fasteners. This creates waist and leg openings for the absorbent garment 20, allowing the position of the absorbent garment 20 relative to the wearer's body (waist).

[0153] When the absorbent article 20 is housed in the housing member 10, the pair of fastening straps 24 and 24 are folded inward laterally and folded in half at the longitudinal center, such that the non-skin side surface of the absorbent article 20 faces outward. That is, the abdomen 26 and back 27 of the absorbent article 20 are folded so that they face each other. As described above, the absorbent article 20 is folded into Figure 5The compact shape shown is accommodated such that the vertical direction of the accommodating member 10 and the longitudinal direction of the absorbent article 20 are aligned with each other, and the crotch side (lower side in the vertical direction) of the absorbent article 20 is the lower side of the accommodating body 1. Furthermore, in this embodiment, the absorbent article 20 is accommodated such that the back 27 of the absorbent article 20 faces the window area 16 (see [link]). Figure 1 The absorbent article 20 is inserted and removed through the opening 10pn (see...). Figure 4 ).

[0154] (Configuration of window area 16 or non-window area 17 and indicator 23)

[0155] In the vertical positional relationship between the absorbent item 20 and the upper and lower ends of the window area 16, such as Figure 1 As shown, the upper end of the window area 16 is positioned below the upper end of the absorbent article 20, and the lower end of the window area 16 is positioned above the lower end of the absorbent article 20.

[0156] In the vertical positional relationship between the non-window area 17 and the indicator 23, such as Figure 1 As shown, a portion of the indicator 23 is positioned on the lower upper side of the non-window area 17 located on the lower side. Figure 1 (The dotted line portion of the indicator 23). That is, when the housing 1 is upright and its lower end is in contact with the ground plane, at least a portion of the indicator 23 overlaps with the non-window area 17 when viewed in the front-back direction. The non-window area 17 is the area where the paper layer 10a (unbleached pulp area) and the resin sheet overlap, and the paper layer 10a, being unbleached paper, reduces the effect of ultraviolet light on the absorbent article 20. Since the non-window area 17 and the indicator 23 overlap, the reaction of ultraviolet light with respect to the indicator 23 is suppressed during display, storage, etc. Therefore, it is possible to suppress the deterioration of the indicator 23 caused by ultraviolet light.

[0157] Furthermore, the vertical length of the overlapping portion of the non-window area 17 and the indicator 23 (the length of the indicator 23 is determined by...) Figure 1 The vertical length of the portion indicated by the dashed line in the diagram is greater than the vertical length of the portion overlapping the window area 16 and the indicator 23 (the vertical length of the portion of the indicator 23 is determined by the dashed line in the diagram). Figure 1The solid line in the diagram indicates the vertical length of the portion. That is, with the housing 1 upright and its lower end in contact with the ground plane, the vertical length of the overlapping portion of the indicator 23 and the non-window area 17 is longer than the vertical length of the overlapping portion of the indicator 23 and the window area 16. Because the vertical length of the overlapping portion of the indicator 23 and the non-window area 17 (formed from paper and resin sheet) is longer, compared to the case where the vertical length of the overlapping portion of the indicator 23 and the window area 16 (formed only from resin sheet) is longer, this allows for suppression of the indicator 23's reaction to ultraviolet light during display and storage. Therefore, this allows for suppression of the degradation of the indicator 23.

[0158] Figure 7 This is a front view of the containment body 1 in a vertically inverted state. In the containment member 10 according to this embodiment, the internal space has a gap space, and the absorbent article 20 can move within the internal space. That is, in Figure 7 In this state, as the absorbent article 20 moves away from the bottom surface 13 and closer to the sealing part 14 (moving towards the upper side of the containment body 1), the area of ​​the absorbent article 20 that can be visually identified from the window area 16 changes.

[0159] In the inverted state, the vertical positional relationship between the non-window area 17 and the indicator 23 is as follows: Figure 7 As shown, a portion of the indicator 23 is positioned on the lower side ( Figure 7 The upper lower side of the non-window area 17 on the ground plane side) and located on the upper side ( Figure 7 The lower upper side of the non-window area 17 (opposite to the ground plane side) Figure 7 (The area indicated by the upper right shaded area). That is, when the vertical relationship is reversed relative to the containment body 1 and the lower end of the containment body 1 is in contact with the ground plane, when viewed in the front-back direction, at least a portion of the indicator 23 overlaps with the non-window area 17.

[0160] The absorbent material container has gaps within it, allowing the absorbent material to move to the upper part of the container when it is inverted. This makes it easier for the indicator portion to overlap with the non-window area, thereby suppressing the indicator's reaction to ultraviolet light and inhibiting indicator degradation.

[0161] It should be noted that, such as Figure 1 As shown, with the containment body 1 upright and its lower end in contact with the ground plane, the absorbent article 20 contacts the bottom surface 13 of the containment member 10 due to its own weight and is positioned in the center in the left-right direction. This state can be achieved, for example, by grasping and lifting the upper end of the containment member 10, slightly shaking the upper end up and down, and then slowly making the containment body 1 upright.

[0162] Furthermore, as explained above, when the containment body 1 is upright and its lower end is in contact with the ground plane, at least a portion of the indicator 23 overlaps with the non-window area 17, but the absorbent article 20 can move within the internal space as described above. That is, the absorbent article 20 can contact the bottom surface 13 of the containment member 10 and be positioned at any location within the internal space in the left-right direction.

[0163] Furthermore, the statement "when the containment body 1 is upright and its lower end is in contact with the ground plane, at least a portion of the indicator 23 overlaps with the non-window area 17 when viewed in the front-back direction" does not mean that if the absorbent article 20 moves in the left-right direction inside the containment member 10, then "at least a portion of the indicator 23 overlaps with the non-window area 17 when viewed in the front-back direction" is satisfied in the entire position. Rather, it means that it is sufficient for overlap to occur at any one position.

[0164] Furthermore, in this embodiment, in the indicator 23, the back-side indicator 23b, positioned on the back 27, faces the window region 16, and the ventral indicator 23a extends upward in the vertical direction relative to the back-side indicator 23b (see [link]). Figure 1 , Figure 5 A and Figure 5 B). That is, one of the abdomen 26 and the back 27 of the absorbent article 20 faces the window area 16, and the portion of the indicator 23 located on one side (abdomen 26) extends upward in the vertical direction longer than the portion of the indicator 23 located on the other side (back 27). Therefore, compared to the case where the longer portion of the indicator 23 faces the window area 16, the reaction of the indicator 23 with ultraviolet light during display or storage is suppressed (the portion of the indicator 23 overlapping with the window area 16 formed solely of resin sheet is reduced). Therefore, this makes it possible to suppress the deterioration of the indicator 23.

[0165] (The relationship between Figure 15 and Figure 25)

[0166] In this embodiment, graphic 15 (receiving member side graphic) is provided on the paper layer 10a (unbleached pulp area) of the receiving member 10, and graphic 25 (absorbent article side graphic) is provided on the absorbent article 20. Figure 1 When the containment body 1 is upright and its lower end is in contact with the ground plane, figures 15 and 25 do not overlap when viewed in the front-back direction. However, when the absorbent article 20 is positioned in a "specific position (any position in the internal space)" within any possible location of the containment member 10, figures 15 and 25 may overlap when viewed in the front-back direction.

[0167] If, when the absorbent article 20 is positioned in a "specific location (any location within the internal space)," the graphics 15 and 25 overlap when viewed from the front-back direction, then the outermost layer 10a (paper layer 10a) of the receiving member 10 in this embodiment is an unbleached pulp area, and this unbleached pulp area has a greater thickness and is brown or dark brown, etc. This reduces the risk of seeing through the graphics 25 on the absorbent article 20 side. That is, it prevents the graphics 15 provided on the outer surface of the paper layer 10a from becoming visually difficult to identify.

[0168] Furthermore, it is desirable that the maximum concentration of the pattern 15 (container-side pattern) disposed on the outermost layer 10a of the containment member 10 is higher than the maximum concentration of the pattern 25 (absorbent-side pattern) disposed on the outermost surface of the absorbent article 20. In this configuration, the pattern 25 disposed on the outermost surface of the absorbent article 20 becomes less conspicuous relative to the pattern 15 disposed on the outermost layer 10a of the containment member 10. That is, the pattern 25 of the absorbent article 20 becomes less likely to be visually identifiable from the outside of the containment member 10. This allows for further enhancement of the visibility of the pattern 15 disposed on the containment member 10 side.

[0169] It should be noted that the density of the image can be measured as follows. First, under the same imaging conditions, the image 15 disposed on the receiving member 10 and the image 25 disposed on the absorbent article 20 are imaged multiple times using a digital camera to obtain multiple image data. Next, these image data are put into a personal computer, and after monochrome conversion, they are converted into grayscale with 256 gray levels. The highest grayscale value of each of the images 15 and 25 is detected, and the highest grayscale values ​​of the multiple image data are averaged to obtain the maximum density of each image.

[0170] ===Second Implementation Method===

[0171] <Basic Structure of Absorbent Material Container 1001>

[0172] The second embodiment of the absorbent article housing according to the present invention is illustrated below by way of an example of a disposable diaper housing 1001 (hereinafter also referred to as "housing 1001"). However, the absorbent articles housed in the housing 1001 are not limited to disposable diapers, but are also applicable to sanitary napkins, panty liners, lightweight incontinence pads, etc., which can be housed in the housing member.

[0173] Figure 8These are front and cross-sectional views of a disposable diaper housing 1001 (housing housing 1001). The housing 1001 includes: a housing member 1010 as a bag-shaped member; and a plurality of absorbent articles 1020 (disposable diapers) housed within the housing member 1010. Furthermore, the housing 1001 (housing member 1010) has intersecting vertical, horizontal, and front-back directions. Figure 8 The front view shows the containment body 1001 as seen from the front in a front-rear direction. Figure 8 The cross-sectional view shows the section taken along line AA of the front view.

[0174] like Figure 8 As shown, the housing member 1010 has a housing space (alongside) Figure 8 The area represented by the shaded portion in the cross-section cut by line AA) has a substantially triangular cross-sectional shape, wherein the convective space has a generally triangular cross-sectional shape, wherein the convective space is oriented from one side in the vertical direction ( Figure 8 The upper side of the middle faces the other side. Figure 8 (Lower side) The width of the triangular cross-section increases in the front-to-back direction. The containment space can contain one or more absorbent items 1020. Multiple absorbent items 1020 ( Figure 8 Four of them are housed in a stacked arrangement in the front-to-back direction and can be freely inserted into and removed from the opening 1010E (described later). The opening 1010E is formed on one side (upper side) of the housing member 1010 in the vertical direction.

[0175] (Containment component 1010)

[0176] Figure 9 A is a plan view of the housing component 1010 as seen from the front. Figure 9 B is a plan view of the housing component 1010 as seen from the rear. Figure 10 A is shown along Figure 9 A schematic cross-sectional view of the section intercepted by line BB of A. Figure 10 B is shown along Figure 9 A schematic cross-sectional view of the section intercepted by line CC of A.

[0177] The housing component 1010 includes a front sheet component 1011, a rear sheet component 1012, a bottom sheet component 1013, and a sealing part 1014.

[0178] The front sheet member 1011 is a stacked sheet member formed by stacking multiple sheet members in the thickness direction. In this embodiment, the front sheet member 1011 has a double-layer structure, wherein the outermost layer 1011a and the innermost layer 1011b are joined to each other, and the outermost layer 1011a is disposed on the outer side in the thickness direction (the surface side of the receiving member 1010). Figure 10The innermost layer 1011b is disposed on the inner side in the thickness direction (the inner side of the housing member 1010). Figure 10 (The rear side in the front-to-back direction of A). However, the front piece 1011 may have three or more layers.

[0179] At least a portion of the outermost layer 1011a is formed of paper. Here, "paper" refers to paper made from bonded plant fibers, etc., and in a broad sense, it includes not only synthetic paper made using synthetic polymer materials, but also paper blended with fibrous inorganic materials. Since the outermost layer 1011a disposed on the outermost side of the containment 1001 is formed of paper material, it is easier for the user to perceive the containment 1001 as a so-called "reduced plastic" product based on a reduction in the amount of petroleum-based materials, which gives the user an environmentally friendly visual impression. Therefore, in this embodiment, it is desirable that the outermost layer 1011a be composed of "paper" formed from plant fibers such as pulp fibers, and it is desirable that the entire outermost layer 1011a be composed of paper.

[0180] Furthermore, since the outermost layer 1011a is made of paper, it is easier to convey the visual impression of paper's softness to the user. Therefore, users viewing the containment unit 1001 in a store (e.g., a retail store) are more likely to associate the absorbent item 1020 (such as a diaper) contained within the containment member 1010 with a soft texture, and more easily intuitively understand that the absorbent item is a skin-friendly product. In particular, if the target wearer is a newborn or infant with delicate skin, the soft visual impression created by the containment unit 1001 can provide a sense of security to the infant's caregiver or other (user).

[0181] A predetermined graphic 1015 is provided on the surface side (front side in the front-rear direction) of the outermost layer 1011a. The graphic 1015 is configured to allow the user to visually identify various information related to the containment 1001 (absorbent article 1020). In this embodiment, as... Figure 9 As shown in Figure A, graphic 1015 provides information related to the name (product name) or characteristics (materials used) of the absorbent article 1020, an image (e.g., a cotton illustration) used to evoke the image of the absorbent article 1020, and the size of the target wearer. Furthermore, graphic 1015 may provide various certification marks (not shown).

[0182] At least a portion of the innermost layer 1011b is formed of resin. Here, "resin" refers to a synthetic resin composed of a polymer compound, and thermoplastic resins such as polyethylene, polypropylene, polyvinyl chloride, polystyrene, polycarbonate, and polyethylene terephthalate (PET) can be used, for example. Furthermore, the innermost layer 1011b is formed of a transparent resin, so that the other side (inner side) can be visually identified from at least one side (outer side) in the thickness direction. In this embodiment, it is desirable that the resin constituting the innermost layer 1011b is colorless and transparent, so that the absorbent article 1020 housed within the housing member 1010 can be more easily visually identified from the outside of the housing 1001 through the window 1016 described later.

[0183] like Figure 10 As shown in Figure A, the outermost layer 1011a and the innermost layer 1011b are stacked in the thickness direction and bonded to each other with an adhesive or the like (by...). Figure 10 (The dashed line in A indicates this). Therefore, a front piece 1011 is formed with the surface side made of paper and the inside side made of resin.

[0184] Furthermore, a window portion 1016 is provided on the front member 1011, in which a portion of the area of ​​the outermost layer 1011a is cut off. In this window portion 1016, the innermost layer 1011b is exposed to the outer surface, allowing the user to visually identify the interior of the receiving member 1010 from the front side of the receiving body 1001 through the window portion 1016. In this embodiment, as... Figure 8 and Figure 9 As shown, the window portion 1016 is continuously provided in the left-right direction from one end to the other. Therefore, this makes it easy to visually identify the absorbent article 1020 housed in the housing member 1010.

[0185] The rear piece 1012 has the same construction as the front piece 1011. That is, the rear piece 1012 is formed by joining the outermost layer 1012a and the innermost layer 1012b stacked in the thickness direction (see [link]). Figure 10 A) At least a portion of the outermost layer 1012a is formed of paper, and at least a portion of the innermost layer 1012b is formed of resin. Furthermore, the film member 1013 has the same construction as the front film member 1011 and the rear film member 1012. That is, the film member 1013 is formed by joining the outermost layer 1013a and the innermost layer 1013b, which are stacked in the thickness direction (see [link]). Figure 10 A) At least a portion of the outermost layer 1013a is formed of paper, and at least a portion of the innermost layer 1013b is formed of resin.

[0186] In this embodiment, all outermost layers 1011a, 1012a, and 1013a are formed from the same type of sheet material (paper), and these layers will be collectively referred to below as outermost layer 1010a. In the same manner as described above, all innermost layers 1011b, 1012b, and 1013b are formed from the same type of sheet material (resin), and these layers will also be collectively referred to as innermost layer 1010b.

[0187] When the receiving member 1010 is formed, the innermost layer 1011b of the front sheet member 1011 and the innermost layer 1012b of the rear sheet member 1012 are stacked on top of each other in the front-rear direction, facing each other. Furthermore, at the lower end of the receiving member 1010 in the vertical direction, with the outermost layer 1013a folded in the vertical direction so that its portion faces each other, the bottom sheet member 1013 is disposed between the front sheet member 1011 and the rear sheet member 1012 in the front-rear direction. Additionally, sheet members adjacent to each other in the front-rear direction (thickness direction) are joined together in a predetermined area.

[0188] Specifically, such as Figure 10 As shown in Figure A, the innermost layer 1011b of the front sheet member 1011 and the innermost layer 1013b of the back sheet member 1013 are joined to each other at their lower ends in the vertical direction. The innermost layers 1011b and 1013b are joined to each other, for example, by a known welding method such as heat fusion. Both the innermost layers 1011b and 1013b are resin sheet members and are thermoplastic, therefore, welding can be used to join the opposing sheet members to each other with sufficient strength. In the same manner, the innermost layer 1012b of the rear sheet member 1012 and the innermost layer 1013b of the back sheet member 1013 are joined (welded) to each other at their lower ends in the vertical direction. Thus, a structure is formed from... Figure 10 The wavy line in A represents the bottom seal 1018. (For example...) Figure 9 As shown in the shaded area, in the lower end of the housing member 1010 in the vertical direction, the sheet members 1011, 1012 and 1013 are continuously joined and sealed by the bottom sealing part 1018 in the horizontal direction.

[0189] Furthermore, at the ends in the left and right directions, such as Figure 10 As shown in Figure B, the innermost layer 1011b of the front sheet member 1011 and the innermost layer 1012b of the rear sheet member 1012 are joined together. The innermost layers 1011b and 1012b are also joined together by a welding method. Similarly, at the lower ends in the vertical direction, the innermost layer 1011b of the front sheet member 1011 and the innermost layer 1013b of the back sheet member 1013 are welded together at their left-right ends, and the innermost layer 1012b of the rear sheet member 1012 and the innermost layer 1013b of the back sheet member 1013 are welded together at their left-right ends. Therefore, a structure is formed by... Figure 10The wavy line in B indicates the side seal 1017. (See example...) Figure 9 As shown in the shaded area, at both ends of the receiving member 1010 in the left and right directions, the sheet members 1011, 1012 and 1013 are continuously joined and sealed in the up and down direction by the side sealing part 1017.

[0190] It should be noted that in the film member 1013 folded in the vertical direction, the portions of the outermost layer 1013a that face each other in the front-back direction are also joined to each other at both ends in the left-right direction and at the lower end in the vertical direction of the receiving member 1010. Since the outermost layer 1013a is formed of paper, portions of the outermost layer 1013a are joined to each other using adhesive (by...). Figure 10 The dashed line in B represents (the area).

[0191] As described above, in the edge portion of the receiving member 1010, the two ends in the left-right direction and the lower end in the up-down direction are continuously locked by a pair of side sealing portions 1017 and 1018 and a bottom sealing portion 1018. Meanwhile, in the edge portion of the receiving member 1010, the upper end in the up-down direction is not locked. Therefore, the receiving member 1010 has an opening 1010E on the upper side in the up-down direction (see description below). Figure 11 It has a bag shape with a substrate member 1013 used as the bottom surface.

[0192] The opening 1010E of the receiving member 1010 can be sealed by the sealing part 1014. For example... Figure 10 As shown in Figure A, the sealing portion 1014 is composed of a pair of resin zippers, etc., arranged along the left-right direction and respectively provided in the innermost layer 1011b of the front piece member 1011 and the innermost layer 1012b of the rear piece member 1012. The pair of sealing portions 1014 and 1014 facing each other in the front-rear direction are pressed together and engaged, thereby closing the opening 1010E and sealing the receiving space of the receiving member 1010 (see Figure A). Figure 8 Furthermore, by pulling the joined sealing portions 1014 and 1014 apart in the front-to-back direction toward opposite sides, an opening 1010E is formed again. As described above, the opening 1010E of the receiving member 1010 can be freely opened and closed through the sealing portion 1014.

[0193] Figure 11 This diagram illustrates how the absorbent article 1020 is placed into and removed from the containment member 1010. Figure 11As shown, the opening 1010E is formed on the upper side in the vertical direction by pulling open the sealing part 1014 of the receiving member 1010, so that the absorbent article 1020 can be taken out and placed through the opening 1010E. In addition, after the operation of taking out the absorbent article 1020 is performed, the opening 1010E is closed by resealing the sealing part 1014, so that the moisture-proofness of the receiving space can be maintained.

[0194] (Absorbent Items 1020)

[0195] Figure 12 This is a plan view of the absorbent item 1020 housed in the housing member 1010, viewed from the front in a front-back direction. Figure 13 These are plan and cross-sectional views of absorbent item 1020 in its unfolded and stretched state. Figure 12 and Figure 13 In this embodiment, the absorbent article 1020 has longitudinal and transverse directions that intersect each other. The longitudinal direction corresponds to the length direction of the absorbent article in a stretched state, and is along... Figure 8 The vertical direction within. The horizontal direction corresponds to the short side direction of the absorbent material in a stretched state, and is along... Figure 8 The left and right directions in the middle.

[0196] exist Figure 12 and Figure 13 As an example of an absorbent article 1020 to be housed in a housing member 1010, a strip-type disposable diaper is shown. The absorbent article 1020 includes an outer body 1021, an inner body 1022, an indicator 1023, and a fastening strap 1024.

[0197] The outer casing 1021 is an outer component disposed on the non-skin side of the absorbent article 1020 and supporting the inner casing 1022. As the outer casing 1021, a suitable nonwoven fabric, such as spunbond / meltblown / spunbond (SMS) nonwoven fabric, can be used. Furthermore, a predetermined pattern 1025 can be provided on the non-skin side surface of the outer casing 1021 (i.e., the outermost surface of the absorbent article 1020). In the same manner as the pattern 1015 provided on the receiving member 1010, the pattern 1025 is configured to allow the user to visually identify information about the absorbent article 1020. In this embodiment, as... Figure 12 As shown, graphic 1025 provides information related to the name (product name) or characteristics (materials used) of the absorbent article 1020, an image (e.g., a cotton illustration) used to evoke the image of the absorbent article 1020. Additionally, the size or other information of the target wearer may be displayed.

[0198] The inner body 1022 is a component corresponding to the absorbent body that absorbs excrement. The inner body 1022 includes: an absorbent body 1022a; a skin side sheet 1022b disposed on the skin side in the thickness direction relative to the absorbent body 1022a; and a non-skin side sheet 1022c disposed on the non-skin side in the thickness direction relative to the absorbent body 1022a.

[0199] The absorbent 1022a is a component for absorbing and retaining excretions such as urine, and is formed by wrapping an absorbent core having a liquid-absorbing material with a liquid-permeable core-wrapping sheet. The liquid-absorbing material constituting the absorbent core can be made of, for example, liquid-absorbing fibers (e.g., pulp fibers) or liquid-absorbing particles (e.g., highly absorbent polymers, so-called SAP). Furthermore, as the core-wrapping sheet, for example, tissue paper can be used.

[0200] The skin-side sheet 1022b is a component that comes into contact with the wearer's skin when the absorbent article 1020 is worn, and is a liquid-permeable sheet component that allows excrement to permeate from the skin side to the non-skin side in the thickness direction and to move the excrement to the absorbent body 1022a. A flexible sheet component such as a breathable nonwoven fabric can be used as the skin-side sheet 1022b. The non-skin-side sheet 1022c is a liquid-impermeable sheet component that inhibits the leakage of liquid (e.g., urine) absorbed by the absorbent body 1022a to the non-skin side (the side of the wearer's clothing). A flexible sheet component such as a polyethylene (PE) resin film can be used as the non-skin-side sheet 1022c.

[0201] Indicator 1023 is a detection part for detecting at least one of urine and feces, and is disposed in the thickness direction between absorbent 1022a and non-skin side piece 1022c. In this embodiment, indicator 1023 is configured as an indicator having a pH indicator used in conventional diapers. For example, the pH of the excrement is used as a reaction factor, and urine or feces are detected when the indicator exhibits a predetermined reaction (e.g., a color reaction) upon contact with urine or feces. Furthermore, in Figure 12 In the absorbent article 1020, an indicator 1023 extending longitudinally is provided in the transverse central portion. However, the configuration and number of the indicator 1023 can be appropriately changed depending on the type (urine or feces) and amount of excrement to be detected. Furthermore, in the absorbent article 1020, the indicator 1023 is not a necessary feature, and it is not necessarily required to provide the indicator 1023.

[0202] The fastening straps 1024 are paired engagement members provided on the longitudinal ends of the back side of the outer garment 1021, extending outwards on both sides laterally. Each fastening strap 1024 has a hook-and-loop fastener comprising a hook for engaging fibers such as nonwoven fabric. When the absorbent garment 1020 is worn, the pair of fastening straps 1024 are engaged with the outer garment 1021 (nonwoven fabric) on the ventral side by the engaging force of the hook-and-loop fasteners. This forms waist and leg openings in the absorbent garment 1020, allowing the absorbent garment 1020 to be secured relative to the wearer's body (waist).

[0203] When the absorbent article 1020 is housed in the housing member 1010, the pair of fastening straps 1024 and 1025 are folded inward in the transverse direction and folded in half longitudinally at the center such that the non-skin side surface of the absorbent article 1020 faces outward. As described above, the absorbent article 1020 is folded into Figure 12 The compact shape shown aligns the vertical direction of the receiving member 1010 with the longitudinal direction of the absorbent article 1020. In this state, the absorbent article 1020 is inserted and removed through the opening 1010E (see [reference]). Figure 11 ).

[0204] <Graphic 1015 set in the housing member 1010>

[0205] As described above, graphic 1015 is disposed on the receiving member 1010 of this embodiment (see [reference]). Figure 8 and Figure 9 (A, etc.). The graphic 1015 is printed on the surface side of the outermost layer 1010a using a predetermined water-based ink via gravure or flexographic printing. Generally, water is used as a solvent in many cases for water-based inks, making them environmentally friendly because they are safer and have less odor compared to oil-based inks that use organic solvents. However, water-based inks have weaker adhesion to the printing medium compared to oil-based inks, making it difficult to use them in products intended for distribution to the market in some cases. Conversely, in this embodiment, since the outermost layer 1010a, which serves as the printing medium, is formed of paper, the water-based ink adheres easily, allowing the graphic 1015 to be formed stably. Therefore, from an environmental perspective, using water-based ink as the ink for printing the graphic 1015 on the housing member 1010 in this embodiment is also suitable.

[0206] Meanwhile, in this embodiment, the outermost layer 1010a of the housing member 1010 is formed of paper material, allowing the user to perceive a soft and environmentally friendly visual impression of the absorbent article 1020 housed within the housing member 1010. However, if the graphic 1015 printed on the outermost layer 1010a is sharp, there is a risk that the soft visual impression of the paper material will be compromised. For example, if a graphic with a very sharp outline (edge) is provided on the surface of the housing member 1010, there is a risk that the user viewing the graphic will be more likely to perceive a sharp and hard visual impression, which is the opposite of a soft visual impression.

[0207] Therefore, in this embodiment, the graphic 1015 printed on the outermost layer 1010a (1011a) is prevented from becoming too sharp, and this suppresses the hard visual impression given to the user. That is, at least a portion of the graphic 1015 is blurred, and this makes it easier for the user to think of a soft visual impression of the containment 1001.

[0208] Specifically, when printing pattern 1015, a sheet component with the lowest possible smoothness is used as the outermost layer 1010a (1011a) of the printing medium. Generally, the lower the smoothness of the sheet component, the greater the unevenness on its surface. Therefore, when printing is performed on such a sheet component, the ink concentration is prone to change, making the resulting image more likely to appear locally blurred.

[0209] In this embodiment, uncoated paper with a region having a Buick smoothness of less than 20 seconds is used as the outermost layer 1010a, and printing is performed such that at least a portion of the pattern 1015 overlaps with this region. It should be noted that Buick smoothness is a value expressed in seconds, representing the time (in seconds) required for a certain amount of atmospheric pressure air to flow between a test piece and an annular plane in contact with each other under specific conditions at a specific initial pressure difference. The smaller the Buick smoothness (the smaller the number of seconds), the lower the smoothness. Buick smoothness can be measured based on "Paper and Paperboard—Determination of Smoothness by the Buick Method" as specified in JIS P 8119-1998.

[0210] According to the JBMS-32-2002 standard "Cut Paper for Electrophotographic Copiers and Printers" issued by the Japan Business Machines and Information Systems Industries Association, Buick's recommended smoothness value is 20 to 150 seconds. This smoothness serves as a standard when selecting cut paper for printers, etc. This value does not guarantee image performance, but it is at least a benchmark range for performing ordinary printing with minimal blurring. Therefore, when printing on media with a Buick smoothness value less than 20 seconds (the lower limit of the recommended value), the likelihood of blurring in the image is higher.

[0211] Figure 14This is a table showing the values ​​obtained by measuring the smoothness of the sheet components (samples A to C) of the paper material used as the outermost layer 1011a in this embodiment. The smoothness was measured according to the method described above in JIS P8119-1998. Figure 14 As shown, the Buick smoothness of all sheet components A to C is below 5.3 seconds, and is less than 20 seconds (the lower limit of Buick smoothness as defined in JBMS-32-2002). That is, the smoothness is lower than the smoothness of printing paper recommended in JBMS-32-2002. Furthermore, it has been confirmed that when printing is actually performed on these sheet components (samples A to C) using water-based inks, uneven density is prone to occur in a portion of the formed pattern 1015, and the pattern 1015 appears blurry.

[0212] Therefore, a sheet of paper with a smoothness of less than 20 seconds, preferably less than 5.3 seconds, is used as the outermost layer 1010a of the housing member 1010, and the graphic 1015 is printed on this area, which makes the formed graphic 1015 appear blurred. Therefore, this makes it easier for the user to recall the material texture or soft visual impression that the housing member 1010 or the absorbent item 1020 such as a disposable diaper housed therein is formed of paper.

[0213] It should be noted that, as an example of the material (paper) constituting the outermost layer 1010a with a smoothness of less than 20 seconds, paper formed from unbleached pulp can be used. In the case where the outermost layer 1010a is formed from paper made from bleached pulp, there is a risk that the absorbed material 1020 contained within will show through, making the graphic 1015 difficult to visually identify. Conversely, paper made from unbleached pulp is generally not stained or bleached, has a greater thickness, and is less prone to showing through. Therefore, if the graphic 1015 is printed on a layer of paper made from unbleached pulp, its visibility is less likely to deteriorate even when the graphic 1015 is printed in a blurred manner. Therefore, by printing a blurred graphic 1015 in an area formed from unbleached pulp, the deterioration of the visibility of the graphic 1015 can be suppressed, while creating a soft visual impression.

[0214] Furthermore, in the housing member 1010 of this embodiment, the innermost layer 1010b (at least a portion of which is formed of resin) is stacked on the inside side of the outermost layer 1010a (at least a portion of which is formed of paper) in the thickness direction. Compared to the paper constituting the outermost layer 1010a, the resin material constituting the innermost layer 1010b has higher moisture resistance. Therefore, by stacking the innermost layer 1010b, formed of resin with high moisture resistance, on the inside side of the outermost layer 1010a formed of paper, it is possible to suppress the penetration of moisture from the outside of the housing member 1010 into the interior of the housing space. In addition, this makes it possible to suppress the water-based ink constituting the pattern 1015 printed on the outermost layer 1010a from the surface to the inside in the thickness direction, which could lead to color contamination due to contact with the absorbent article 1020. Therefore, the quality of the absorbent article 1020 housed in the housing member 1010 can be easily maintained in an excellent state.

[0215] Furthermore, in this embodiment, the adjustment of the arrangement of the graphic 1015 printed on the housing member 1010 makes it easier for the user to recall the soft visual impression of the housing 1001. Figure 15 A is a perspective view of the housing 1001 and a diagram showing the arrangement of the graphic 1015 disposed on the housing member 1010. Figure 15 B is shown along Figure 15 A schematic cross-sectional view of the section cut by line XX of A.

[0216] like Figure 8 and Figure 15 As shown in Figure A, a plurality of patterns 1015 are provided on the outermost surface of the housing member 1010. Among the plurality of patterns 1015, a plurality of patterns are provided on the outermost surface of the housing member 1010. Figure 15 The graphic at the right end of A is called graphic 1151. In graphic 1151, the portion located at the left end in the left-right direction is designated as the first portion 1151A, and the portion located at the right end in the left-right direction is designated as the second portion 1151B. Graphic 1151 is configured such that the positions of the first portion 1151A and the second portion 1151B are different in the front-back direction.

[0217] The housing member 1010 for housing the absorbent article 1020 has a shape in which the area housing the absorbent article 1020 expands in the front-rear direction. Figure 15In section B, the front piece 1011 and the rear piece 1012 are joined together in the side sealing portions 1017 at both ends in the left-right direction, which makes the housing member 1010 thinnest in the front-rear direction. As it moves inward from both ends in the left-right direction (towards the center), the space between the front piece 1011 and the rear piece 1012 in the front-rear direction widens, while the front piece 1011 and the rear piece 1012 bend. That is, the thickness of the housing member 1010 increases in the front-rear direction. The bending area of ​​the front piece 1011 and the rear piece 1012 is called the bending area 1010cr (see...). Figure 15 B). In the central part in the left-right direction, the thickness of the housing member 1010 is the greatest in the front-back direction.

[0218] like Figure 15 As shown in Figure B, the first portion 1151A of the graphic 1151 is positioned to overlap with the curved region 1010cr, and the second portion 1151B is positioned to overlap with the side seal 1017. As described above, the positions of the first portion 1151A and the second portion 1151B of the graphic 1151 differ in the front-rear direction, which allows the graphic 1151 to be visually recognized in a three-dimensional manner in the front-rear direction. Therefore, compared to visually recognizing the graphic 1151 in a planar view, the three-dimensionally expanded shape of the receiving member 1010 is emphasized, making it easier to generate a softer visual impression of the receiving body 1001 as a whole. In particular, since the graphic 1151 is configured to extensively overlap the curved region 1010cr of the receiving member 1010, the graphic is visually recognized as a circular curved surface, which gives the user a softer impression.

[0219] Furthermore, graphic 1151 is configured to span the side seal 1017. That is, a specific portion of graphic 1151 (in...) Figure 15 In B, the first part 1151A) is positioned in a location that does not overlap with the side seal 1017, and the other part of the graphic 1151 (in...) Figure 15 In part B, the second part 1151B) is positioned to overlap with the side seal 1017. Therefore, the graphic 1151 is configured to have a planar region overlapping the side seal 1017 and a curved region not overlapping the side seal 1017 (overlapping with the curved region 1010cr). Thus, the graphic 1151 is visually perceived as having a more complex and three-dimensional shape, which makes it easier for the user to perceive a softer visual impression of the housing 1001.

[0220] Furthermore, a window 1016 is provided on the front surface (front panel member 1011) of the receiving member 1010, which allows the absorbent item 1020 contained in the receiving member 1010 to be visually identified from the outside of the receiving body 1001. That is, the user can visually identify the soft absorbent item 1020 (such as a diaper) contained in the receiving member 1010. Therefore, this makes it easier for the user to recall the soft visual impression of the receiving body 1001.

[0221] At this time, it is desirable that the average concentration of the pattern 1015 on the outermost layer 1010a of the containing member 1010 is higher than the average concentration of the pattern 1025 on the outermost surface (outer body 1021) of the absorbent article 1020, which can be visually identified through the window 1016. Since the pattern 1025 of the absorbent article 1020, which can be visually identified through the window 1016, appears lighter than the pattern 1015 on the containing member, the softness of the absorbent article 1020 itself is emphasized, which enhances the overall soft visual impression of the containing body 1001.

[0222] It should be noted that the density of the image can be measured as follows. First, under the same imaging conditions, the image 1015 disposed on the receiving member 1010 and the image 1025 disposed on the absorbent article 1020 are imaged multiple times using a digital camera to obtain multiple image data. Next, these image data are imported into a personal computer, and after monochrome conversion, they are converted to grayscale with 256 gray levels. The highest grayscale value of each of the images 1015 and 1025 is detected, and the highest grayscale values ​​of the multiple image data are averaged to obtain the maximum density of each image.

[0223] Furthermore, in the housing member 1010, it is desirable that the average value of the dynamic friction coefficient of the innermost layer 1010b is less than the average value of the dynamic friction coefficient of the outermost layer 1010a. As described above, since the outermost layer 1010a is constructed to have a smoothness of less than 20 seconds, it has an uneven surface, and the dynamic friction coefficient tends to increase. Meanwhile, it is preferable that the dynamic friction coefficient of the innermost layer 1010b is as small as possible. Figure 11As shown, when the absorbent article 1020 contained therein is removed from the opening 1010E of the receiving member 1010, the absorbent article 1020 is removed while its outermost surface is rubbing against the innermost surface (innermost layer 1010b) of the receiving member 1010. Therefore, if the coefficient of dynamic friction of the innermost layer 1010b of the receiving member 1010 is equal to or greater than the coefficient of dynamic friction of the outermost layer 1010a, there is a risk that the absorbent article 1020 may easily get stuck on the innermost surface (innermost layer 1010b) of the receiving member 1010, which makes it easier to obstruct the removal operation. Conversely, by setting the average value of the coefficient of dynamic friction of the innermost layer 1010b of the receiving member 1010 to be less than the average value of the coefficient of dynamic friction of the outermost layer 1010a, a blurred pattern 1015 can be formed on the outermost layer 1010a, and the operation of removing the absorbent article 1020 can be performed smoothly.

[0224] It should be noted that the coefficient of kinetic friction can be measured, for example, as follows. First, the outermost layer 1010a and the innermost layer 1010b, which are the parts to be measured, are cut to predetermined dimensions (e.g., approximately 10 cm in length and approximately 20 cm in width), and multiple pieces (e.g., 10 pieces) are prepared as samples. Next, for each sample, the friction force is measured using the friction force detection function of an automatic surface testing machine (KESFB4-AUTO-A manufactured by Kato Technology Co., Ltd.). Under the measurement conditions, the contact area of ​​the friction blocks is set to 5 mm × 5 mm (0.25 cm²). 2 The load W in the vertical direction, including the weight of the friction block, was set to 50 gf (approximately 0.5 N). The specimen was placed in an automatic surface testing machine with a tensile force of 400 g applied to a width of 20 cm, and the friction block was brought into contact with the specimen under load W. The friction force F was then measured at a moving speed of 1 mm / sec, and the average value of the kinetic friction coefficient was calculated.

[0225] ===Third Implementation Method===

[0226] <Basic Structure of Absorbent Object Container 2001>

[0227] The third embodiment of the absorbent article housing according to the present invention is illustrated below by way of an example of a disposable diaper housing 2001 (hereinafter also referred to as "housing 2001"). However, the absorbent articles housed in the housing 2001 are not limited to disposable diapers, but are also applicable to sanitary napkins, panty liners, lightweight incontinence pads, etc., which can be housed in the housing member.

[0228] Figure 16 A is a perspective view of the disposable diaper housing 2001 (housing housing 2001). Figure 16B is shown along Figure 16 A schematic cross-sectional view of the section taken by line AA. The containment body 2001 includes: a containment member 2010 as a bag-shaped member; and a plurality of absorbent articles 2020 (disposable diapers) contained in the containment member 2010. In addition, the containment body 2001 (containment member 2010) has intersecting vertical, horizontal and front-back directions.

[0229] The receiving member 2010 is a bag member with a roughly hexahedral shape, wherein the cylindrical sheet member 2010s formed along the left-right direction folds into corner braces at both ends in the vertical direction, and wherein the two ends in the left-right direction are locked by locking parts SW1 and SW2. The specific structure of the receiving member 2010 will be described later. Figure 16 As shown in Figure B, a receiving space with a roughly rectangular cross-section is formed in the receiving member 2010 (in... Figure 16 In section B, the area indicated by the shaded portion), and one or more absorbent items 2020 can be contained within the containment space. Multiple absorbent items 2020 ( Figure 16 (B consists of 4) and are housed in a stacked manner in the front-to-back direction, and can be freely inserted into and removed from the opening 2010E (described later). The opening 2010E is formed by opening either the locking part SW1 or SW2 of the housing member 2010.

[0230] (Containment component 2010)

[0231] Figure 17 A and Figure 17 B is a diagram showing the sheet member 2010s that constitute the housing member 2010. Figure 18 A to Figure 18 D is a diagram showing the structure and manufacturing method of the housing component 2010. Figure 19 A is shown along Figure 18 A schematic cross-sectional view of the section cut by line BB of D. Figure 19 B is shown along Figure 18 A schematic cross-sectional view of the section intercepted by line CC of D.

[0232] The receiving member 2010 is formed of stacked sheet members 2010s (hereinafter simply referred to as sheet members 2010s), which are formed by stacking multiple sheet members in the thickness direction. In this embodiment, the sheet member 2010s has a double-layer structure, wherein the outermost layer 2010a and the innermost layer 2010b are joined to each other, the outermost layer 2010a is disposed on the outer side in the thickness direction (the surface side of the receiving member 2010), and the innermost layer 2010b is disposed on the inner side in the thickness direction (the inner side of the receiving member 2010). However, the sheet member 2010s may have three or more layers.

[0233] At least a portion of the outermost layer 2010a is formed of paper. Here, "paper" refers to paper made from bonded plant fibers, etc., and in a broad sense, it includes not only synthetic paper made using synthetic polymer materials, but also paper blended with fibrous inorganic materials. Since the outermost layer 2010a disposed on the outermost side of the containment 2001 is formed of paper material, the user is more likely to recognize the containment 2001 as a so-called "reduced plastic" product based on a reduction in the amount of petroleum-based materials, which gives the user an environmentally friendly visual impression. Therefore, in this embodiment, it is desirable that the outermost layer 2010a be composed of "paper" formed from plant fibers such as pulp fibers, and it is desirable that the entire outermost layer 2010a be composed of paper.

[0234] Furthermore, the predetermined graphic 2015 can be provided on the surface side of the outermost layer 2010a (the front side in the front-rear direction of the containment 2001). The graphic 2015 is configured to allow the user to visually identify various information related to the containment 2001 (absorbent article 2020). In this embodiment, as... Figure 16 As shown in Figure A, Figure 2015 provides information related to the name (product name) or characteristics (materials used) of the absorbent article 2020, an image (e.g., a cotton illustration) used to evoke the image of the absorbent article 2020, and the size of the target wearer. Furthermore, Figure 2015 may provide various certification marks (not shown).

[0235] The graphic 2015 is printed on the surface side of the outermost layer 2010a using a predetermined water-based ink via gravure or flexographic printing. Generally, water is used as a solvent in many cases for water-based inks, making them environmentally friendly because they are safer and have less odor compared to oil-based inks that use organic solvents. However, water-based inks have weaker adhesion to the printing medium compared to oil-based inks, making it difficult to use them in products intended for the market in some situations. Conversely, in this embodiment, since the outermost layer 2010a, which serves as the printing medium, is made of paper, the water-based ink adheres easily, allowing the graphic 2015 to be formed stably. Therefore, from an environmental perspective, using water-based ink as the ink for printing the graphic 2015 on the housing member 2010 in this embodiment is also suitable.

[0236] At least a portion of the innermost layer 2010b is formed of resin. Here, "resin" refers to a synthetic resin composed of a polymer compound, and thermoplastic resins such as polyethylene, polypropylene, polyvinyl chloride, polystyrene, polycarbonate, and polyethylene terephthalate (PET) can be used, for example. Furthermore, it is desirable that the innermost layer 2010b be formed of a transparent resin, so that the other side (inner side) can be visually identified from at least one side (outer side) in the thickness direction. Specifically, a window 2016 is provided on the housing member 2010 (see...). Figure 22 In the case of (as detailed below), it is desirable that the resin constituting the innermost layer 2010b be colorless and transparent so that the absorbent article 2020 contained within the containment member 2010 can be more easily visually identified from the outside of the containment body 2001 through the window 2016.

[0237] like Figure 17 As shown in B, the outermost layer 2010a and the innermost layer 2010b are stacked in the thickness direction and bonded to each other with an adhesive or the like to form a sheet member 2010s with the surface side made of paper and the inner side made of resin.

[0238] When forming the receiving member 2010, the sheet member 2010s is first rolled into a cylindrical shape such that the outermost layer 2010a is on the surface and the innermost layer 2010b is on the inside. Figure 18 As shown in Figure A, one end and the other end in the vertical direction are stacked on top of each other in the thickness direction (front-back direction), and the stacked portions are joined along the left-right direction to form a sheet member joint BW. One end and the other end of the sheet member 2010s are joined to each other, for example, by a known welding method such as heat fusion. At this time, one end of the sheet member 2010s is folded at a fold line F1 extending along the left-right direction such that the portions of the innermost layer 2010b face each other, and then the portions of the innermost layer 2010b that are adjacent to each other in the front-back direction (one end and the other end of the sheet member 2010s) are welded and joined. Both the innermost layers 2010b and 2010b are resin sheet members and are thermoplastic, so the use of welding methods such as heat fusion can make it possible to join the opposing sheet members to each other with sufficient strength. Therefore, a structure is formed by... Figure 19 The wavy line in B indicates the rear sealing portion 2017. The innermost layer 2010b of the sheet member 2010s is continuously joined and sealed by the rear sealing portion 2017 along the left-right direction on the rear side of the receiving member 2010 in the front-rear direction.

[0239] Next, as Figure 18As shown in Figure B, the cylindrical sheet member 2010s is folded inward from both outer sides in the vertical direction to form corner braces G1 and G2. Specifically, in corner brace G1, the sheet member 2010s is folded from one side in the vertical direction to the other side in the vertical direction at fold lines F2A and F2B extending in the horizontal direction. The sheet member 2010s is folded again at fold line F3 extending in the horizontal direction, so that the outermost layer 2010a faces each other. Therefore, as shown in Figure B, the cylindrical sheet member 2010s is formed. Figure 18 B shows the gusseted section G1, folded into a roughly M-shape. Within the gusseted section G1, as shown... Figure 19 As shown in Figure A, the front opposing surface 2010agf, which is one side surface of the outermost layer 2010a, and the rear opposing surface 2010agb, which is the other side surface of the outermost layer 2010a, face each other in the front-back direction. It should be noted that the corner brace G2 is formed in the same manner as the corner brace G1.

[0240] Next, as Figure 18 As shown in C, on one end in the left-right direction ( Figure 18 (Left side of C), the overlapping portions of sheet members 2010s in the front-to-back direction are joined together to form a locking part SW1. In the locking part SW1, the portions of the innermost layer 2010b that are configured to face each other in the thickness direction (including the gusset portions G1 and G2) are fused and joined together using a known welding method such as heat fusion. In the same manner as described for the sheet member joint portion BW, the two opposing portions of the innermost layer 2010b are both resin sheet members and are thermoplastic, so the opposing sheet members can be joined together with sufficient strength using a welding method such as heat fusion. Therefore, a locking part SW1 is formed by... Figure 19 The wavy line in A indicates the side seal 2018. The innermost layer 2010b of the sheet member 2010s is continuously locked by the side seal 2018 along the vertical direction and at one end in the horizontal direction of the receiving member 2010. It should be noted that... Figure 19 Figure A shows the cross-sectional structure of the locking part SW2. Since the locking parts SW1 and SW2 have the same structure, therefore... Figure 19 A also shows the cross-sectional structure of the locking part SW1.

[0241] On one side in the left-right direction (in) Figure 18 After the end of C (on the left) is locked by the locking part SW1, the corner braces G1 and G2 unfold, forming a receiving space with a roughly rectangular cross-section. From the other side (in the left-right direction) Figure 18 In section C (right side), the absorbent article 2020 is placed into the containment space. In the containment member with a gusseted structure as described in this embodiment, the portion of the sheet member 2010s constituting the outer casing that has been folded into a so-called "gusset" unfolds, which allows a wide containment space to be formed inside, such as... Figure 16As shown in B, the volume of the containment space has increased, which allows for the containment of a large number of absorbent items.

[0242] After placing the absorbent material 2020 inside the containment structure, such as Figure 18 As shown in D, the overlapping portions of the sheet member 2010s in the front-back direction join together, thereby forming a connection at the other end in the left-right direction. Figure 18 The right side of D forms the locking part SW2. The method for forming the locking part SW2 is the same as the method for forming the locking part SW1.

[0243] Therefore, a containment component 2010 is formed in which multiple absorbent items 2020 are contained within the internal containment space.

[0244] (Absorbent Items 2020)

[0245] Figure 20 This is a plan view of the absorbent item 2020 contained in the containment member 2010, viewed from the front in a front-back direction. Figure 21 These are plan and cross-sectional views of an absorbent item in its unfolded and stretched state (2020). Figure 20 and Figure 21 In this context, the absorbent article 2020 has longitudinal and transverse directions that intersect each other. The longitudinal direction corresponds to the length direction of the absorbent article in a stretched state, and is along... Figure 16 The left-right direction in the middle. The horizontal direction corresponds to the short side direction of the absorbent material in a stretched state, and is along... Figure 16 The direction of the up and down direction in the middle.

[0246] exist Figure 20 and Figure 21 In the example shown is a strip-type disposable diaper, which is to be housed in the housing member 2010. The absorbent article 2020 includes an outer body 2021, an inner body 2022, an indicator 2023, and a fastening strap 2024.

[0247] The outer casing 2021 is an outer component disposed on the non-skin side of the absorbent article 2020 and supporting the inner casing 2022. As the outer casing 2021, a suitable nonwoven fabric, such as spunbond / meltblown / spunbond (SMS) nonwoven fabric, can be used. Furthermore, a predetermined pattern 2025 can be provided on the non-skin side surface of the outer casing 2021 (i.e., the outermost surface of the absorbent article 2020). In the same manner as the pattern 2015 provided on the receiving member 2010, the pattern 2025 is configured to allow the user to visually identify information about the absorbent article 2020. In this embodiment, as... Figure 20As shown, graphic 2025 provides information related to the name (product name) or characteristics (materials used) of the absorbent article 2020, and images (e.g., cotton illustrations) used to evoke the image of the absorbent article 2020. Additionally, the size or other information of the target wearer may be displayed.

[0248] The inner body 2022 is a component corresponding to the absorbent body that absorbs excrement. The inner body 2022 includes: an absorbent body 2022a; a skin side sheet 2022b disposed on the skin side in the thickness direction relative to the absorbent body 2022a; and a non-skin side sheet 2022c disposed on the non-skin side in the thickness direction relative to the absorbent body 2022a.

[0249] The absorbent 2022a is a component for absorbing and retaining excretions such as urine, and is formed by wrapping an absorbent core having a liquid-absorbing material with a liquid-permeable core-wrapping sheet. The liquid-absorbing material constituting the absorbent core can be made of, for example, liquid-absorbing fibers (e.g., pulp fibers) or liquid-absorbing particles (e.g., highly absorbent polymers, so-called SAP). Furthermore, as the core-wrapping sheet, for example, tissue paper can be used.

[0250] The skin-side patch 2022b is a component that comes into contact with the wearer's skin when the absorbent article 2020 is worn, and is a liquid-permeable sheet component that allows excrement to permeate from the skin side to the non-skin side in the thickness direction and to move the excrement to the absorbent body 2022a. As the skin-side patch 2022b, a flexible sheet component such as a breathable nonwoven fabric can be used. The non-skin-side patch 2022c is a liquid-impermeable sheet component that inhibits the leakage of liquid (e.g., urine) already absorbed by the absorbent body 2022a to the non-skin side (the side of the wearer's clothing). As the non-skin-side patch 2022c, a flexible sheet component such as a polyethylene (PE) resin film can be used, for example.

[0251] The indicator 2023 is a detection part for detecting at least one of urine and feces, and is disposed in the thickness direction between the absorbent 2022a and the non-skin side piece 2022c. The indicator 2023 of this embodiment is constructed as an indicator having a pH indicator used in conventional diapers. For example, the pH of the excrement is used as a reaction factor, and the excretion of urine or feces is detected when the indicator exhibits a predetermined reaction (e.g., a color reaction) upon contact with urine or feces. Furthermore, in Figure 20 In the middle, an indicator 2023 with a strip extending longitudinally is provided in the transverse center. However, the configuration and number of the indicator 2023 can be appropriately changed according to the type of excrement (urine or feces) to be detected, the amount of excrement, etc.

[0252] The fastening straps 2024 are paired engagement members located at the longitudinal ends of the back side of the outer garment 2021, extending outwards on both sides laterally. Each fastening strap 2024 has a hook-and-loop fastener comprising a hook for engaging fibers such as nonwoven fabric. When the absorbent garment 2020 is worn, the pair of fastening straps 2024 are engaged with the outer garment 2021 (nonwoven fabric) by the engaging force of the hook-and-loop fasteners. This forms waist and leg openings in the absorbent garment 2020, allowing the absorbent garment 2020 to be secured relative to the wearer's body (waist).

[0253] When the absorbent article 2020 is housed in the housing member 2010, the pair of fastening straps 2024 and 2025 are folded inward in the transverse direction and folded in half longitudinally at the center such that the non-skin side surface of the absorbent article 2020 faces outward. As described above, the absorbent article 2020 is folded into Figure 20 The compact shape shown is contained such that the left-right orientation of the containing member 2010 and the longitudinal orientation of the absorbent article 2020 are aligned with each other (see [reference]). Figure 18 C).

[0254] (Opening operation of containment chamber 2001)

[0255] When the absorbent article 2020 is removed from the housing 2001 for use, an opening 2010E is formed by peeling off either of the pair of locking parts SW1 and SW2 provided at the left and right ends of the housing member 2010, and the absorbent article 2020 is removed from the opening 2010E. For example, if the locking part SW2 provided on the right side in the left and right direction is opened, the right end in the left and right direction becomes as follows: Figure 18 The opening shown in C is 2010E.

[0256] In this embodiment, such as Figure 19 As shown in Figure A, in locking parts SW1 and SW2, the portions of the innermost layer 2010b that face each other in the front-rear direction are welded and joined by the side sealing portion 2018. On the other hand, the portions of the outermost layer 2010a that face each other in the front-rear direction do not join together. Therefore, this makes it easy to open locking parts SW1 and SW2.

[0257] Traditionally, containment members for absorbent articles with gusseted structures are typically formed using impermeable sheet members such as membranes or resins to prevent the absorbent article from becoming wetted by moisture penetration, such as external humidity. Furthermore, if the two ends of a containment member formed from such a membrane are locked by means of thermal fusion, the entire heated area melts and integrally joins. This results in a very strong bond throughout the locking section, making it difficult to open in some cases. In such situations, a separate opening or treatment of the membrane is required for easy cutting, leading to increased labor and cost issues in manufacturing the containment.

[0258] In this respect, the receiving member 2010 of this embodiment includes a non-engaging portion of the sheet member that does not engage with the locking portions SW1 and SW2, which makes it easier to perform the operation of opening the locking portions SW1 and SW2. Figure 19 In A, in the locking part SW2 (SW1), the front opposing surface 2010agf and the rear opposing surface 2010agb of the outermost layer 2010a forming the gusseted part G1 do not join each other. Similarly, the opposing surfaces of the outermost layer 2010a forming the gusseted part G2 do not join each other. This is because, in the housing member 2010 of this embodiment, the outermost layer 2010a is formed of paper, making it difficult to fuse the opposing surfaces together even when they are heated.

[0259] Therefore, the bonding strength of the entire locking part SW2 (SW1) is weaker compared to the aforementioned conventional membrane-based receiving components, which allows the user to easily peel off the locking parts SW1 and SW2 and perform the opening operation. For example, in Figure 19 In A, the locking part SW2 can be easily opened by grasping the front portion of the gusset G1 (the portion with the front opposing surface 2010agf) and the rear portion of the gusset G2 (the portion with the rear opposing surface 2010agb) and pulling them apart in the front-back direction. Furthermore, since the sheet member 2010s constituting the housing member 2010 includes at least a paper layer (outermost layer 2010a) and a resin layer (innermost layer 2010b), the rigidity of the locking parts SW1 and SW2 located at both ends in the left-right direction is increased compared to the case where the housing member 2010 is formed solely of a diaphragm. Therefore, even when the user grasps and pulls the locking part while opening the housing 2001, it is unlikely that the sheet member 2010s will break or extend, and the opening operation can be performed smoothly and easily.

[0260] Furthermore, in the housing member 2010 of this embodiment, the obvious packaging surface (outermost layer 2010a) that is likely to be seen by the user is made of paper, which makes it easy for the user to think that the housing 2001 is an environmentally friendly product. Therefore, in the housing member 2010 of an absorbent article with a gusseted structure and a large housing space, the locking part can be easily opened while taking the environment into consideration.

[0261] Furthermore, in this embodiment, in the locking portions SW1 and SW2 provided at both ends of the receiving member 2010 in the left and right directions, the entire portion of the outermost layer 2010a that faces each other in the front-back direction does not engage with each other. For example, in Figure 19 In the gusseted portion G1 of A, the entire area of ​​the front opposing surface 2010agf and the rear opposing surface 2010agb, which are adjacent to each other in the front-rear direction and face each other, is a non-engaged portion. As described above, the wider non-engaged portion makes it easier for the user to separate the front opposing surface 2010agf and the rear opposing surface 2010agb in the front-rear direction when opening the housing 2001, and allows the user to easily peel off the locking portions SW1 and SW2 (side sealing portions 2018) and perform the opening operation.

[0262] Furthermore, in the housing member 2010 of this embodiment, the innermost layer 2010b (at least a portion of which is formed of resin) is stacked inside the outermost layer 2010a (at least a portion of which is formed of paper) in the thickness direction. The resin material constituting the innermost layer 2010b has higher moisture resistance than the paper constituting the outermost layer 2010a. Therefore, by stacking the innermost layer 2010b, formed of highly moisture-resistant resin, inside the outermost layer 2010a formed of paper, it is possible to prevent moisture from penetrating from the outside of the housing member 2010 into the interior of the housing space. This makes it easy to maintain the quality of the absorbent article 2020 housed in the housing member 2010 in an excellent state.

[0263] In the housing member 2010, the innermost layer 2010b made of resin is fused to each other in a state of being adjacent to each other in the thickness direction in the locking parts SW1 and SW2 (side sealing parts 2018) and the sheet member joint part BW (rear sealing part 2017); the locking parts SW1 and SW2 are located on the left and right sides, and the sheet member joint part BW is located on the rear side surface in the front and back direction. By joining the facing parts of the thermoplastic resin sheet member (innermost layer 2010b) using a welding means, the left and right sides and the rear side in the front and back direction are firmly sealed. That is, the entire innermost layer 2010b surrounding the housing space of the housing member 2010 is sealed. Therefore, it is unlikely that moisture will enter the interior (housing space) of the housing 2001, which further enhances the moisture resistance.

[0264] Furthermore, in the locking portions SW1 and SW2, a portion of the area where the innermost layers 2010b face each other (side sealing portion 2018) may include portions of the innermost layers 2010b that are not fused together. For example, in a region with a predetermined width (e.g., a region with a width of 3 mm) extending from the outermost ends of the locking portions SW1 and SW2 in the left and right directions respectively, a so-called dry edge may be formed where the portions of the innermost layers 2010b do not join each other. According to this configuration, in the operation of opening the housing 2001 by peeling off the locking portions SW1 and SW2 (side sealing portion 2018), the dry edge provided at the outer ends in the left and right directions serves as a point for starting the peeling off of the side sealing portion 2018, and this makes it easier to perform the opening operation.

[0265] Furthermore, in this embodiment, the pattern 2015 on the outermost layer 2010a of the housing member 2010 is printed using water-based ink. Compared to using oil-based ink to form the pattern, using water-based ink reduces the amount of petroleum-derived organic solvents used. Moreover, since the outermost layer 2010a of the housing member 2010 is made of paper, the pattern 2015 can be firmly adhered to the outermost layer 2010a even when printing is performed without the use of organic solvents. This makes it possible to achieve a more environmentally friendly housing 2001.

[0266] In addition, the window portion 2016 may be provided on the outer surface side (surface side) of the receiving member 2010, and in the window portion 2016, a portion of the area of ​​the outermost layer 2010a is cut off. Figure 22 This is a plan view of a housing 2001 in an example where the window portion 2016 is located on the front surface of the housing member 2010. Figure 22 In this method, a portion of the outermost layer 2010a is cut from the sheet member 2010s constituting the containing member 2010, thereby forming a window 2016 in that area, exposing the innermost layer 2010b to the outer surface. This allows the user to visually identify the interior of the containing member 2010 (i.e., the interior of the containing space) from the front side of the containing body 2001 through the window 2016. Therefore, the user can visually identify that a soft absorbent item 2020 (such as a diaper) is contained in the containing member 2010. Thus, as a whole, the containing body 2001 makes it easier for the user to recall the material texture of paper or the visual impression of softness.

[0267] At this time, it is desirable that the average concentration of the pattern 2015 (corresponding to the pattern on the side of the containment member) on the outermost layer 2010a of the containment member 2010 is higher than the average concentration of the pattern 2025 (corresponding to the pattern on the side of the absorbent material) on the outermost surface (outer body 2021) of the absorbent material 2020, which can be visually identified through the window 2016. Since the pattern 2025 (pattern on the side of the absorbent material) of the absorbent material 2020, which can be visually identified through the window 2016, appears lighter than the pattern 2015 (pattern on the side of the containment member), the softness of the absorbent material 2020 itself is emphasized, which enhances the soft visual impression of the containment body 2001 as a whole.

[0268] It should be noted that the density of the image can be measured as follows. First, under the same imaging conditions, the image 2015 disposed on the receiving member 2010 and the image 2025 disposed on the absorbent article 2020 are imaged multiple times using a digital camera to obtain multiple image data. Next, these image data are imported into a personal computer, and after monochrome conversion, they are converted to grayscale with 256 gray levels. The highest grayscale value of each of the images 2015 and 2025 is detected, and the highest grayscale values ​​of the multiple image data are averaged to obtain the maximum density of each image.

[0269] Furthermore, in this embodiment, unbleached pulp paper can be used as the material (paper) constituting the outermost layer 2010a of the containing member 2010. Unbleached pulp paper is easier to imbue with a natural texture, allowing the user to perceive the texture of the paper material and making it easier for the user to perceive the containing member 2001 as an environmentally friendly product. Moreover, compared to other materials, unbleached pulp has longer fibers, thus forming paper that is less likely to tear. When the containing member 2010 is opened by peeling off the locking parts SW1 and SW2, this makes it less likely that the outermost layer 2010a will tear, allowing for easy removal of the absorbent item 2020.

[0270] Furthermore, in the housing member 2010, it is desirable that the average value of the dynamic friction coefficient of the innermost layer 2010b is less than the average value of the dynamic friction coefficient of the outermost layer 2010a. When the absorbent article 2020 housed in the housing member 2010 is inserted into and removed from the opening 2010E of the housing member 2010 (see...) Figure 18C) The absorbent article 2020 is inserted and removed while its outermost surface rubs against the innermost surface (innermost layer 2010b) of the receiving member 2010. Therefore, if the coefficient of kinetic friction of the innermost layer 2010b of the receiving member 2010 is equal to or greater than the coefficient of kinetic friction of the outermost layer 2010a, there is a risk that the absorbent article 2020 may easily become stuck on the innermost surface (innermost layer 2010b) of the receiving member 2010, making it easier to obstruct the removal operation. Conversely, by setting the average value of the coefficient of kinetic friction of the innermost layer 2010b of the receiving member 2010 to be less than the average value of the coefficient of kinetic friction of the outermost layer 2010a, the removal of the absorbent article 2020 can be performed smoothly compared to the case where the coefficient of kinetic friction of the innermost layer 2010b is greater than that of the outermost layer 2010a, while maintaining the appearance of the receiving body 2001 as paper.

[0271] It should be noted that the coefficient of kinetic friction can be measured, for example, as follows. First, the outermost layer 2010a and the innermost layer 2010b, which are the parts to be measured, are cut to predetermined dimensions (e.g., approximately 10 cm in length and approximately 20 cm in width), and multiple pieces (e.g., 10 pieces) are prepared as samples. Next, for each sample, the friction force is measured using the friction force detection function of an automatic surface testing machine (KESFB4-AUTO-A manufactured by Kato Technology Co., Ltd.). Under the measurement conditions, the contact area of ​​the friction blocks is set to 5 mm × 5 mm (0.25 cm²). 2 The load W in the vertical direction, including the weight of the friction block, was set to 50 gf (approximately 0.5 N). The specimen was placed in an automatic surface testing machine with a tensile force of 400 g applied to a width of 20 cm, and the friction block was brought into contact with the specimen under load W. The friction force F was then measured at a moving speed of 1 mm / sec, and the average value of the kinetic friction coefficient was calculated.

[0272] Other aspects of Containment Entity 1 (1001, 2001)

[0273] Regarding containment body 1 (1001, 2001), in addition to the above aspects, the following aspects are possible. Figure 23 This is a graph showing the coefficient of friction according to other embodiments. Figure 24 This is a graph showing the measurement results of the coefficient of friction according to other embodiments. Figure 25 This is a diagram illustrating the surface roughness (SMD) according to other embodiments. Figure 26 This is a graph showing the measurement results of surface roughness (SMD) according to other embodiments. Figure 27 This figure illustrates how to remove the absorbent article 20 by placing a hand into the gap of the receiving member 10 according to other embodiments.

[0274] (Aspect 1)

[0275] The containment 1 of the absorbent article 20 includes: the absorbent article 20; and a containment member 10 for containing the absorbent article 20, wherein the containment member 10 includes an outermost layer 10a and an innermost layer 10b, at least a portion of the outermost layer 10a is formed of paper, at least a portion of the innermost layer 10b is formed of a material with a lower permeability than that of paper, and the mass proportion of the paper constituting the outermost layer 10a in the mass of the containment member 10 exceeds 50%.

[0276] Therefore, in addition to paper, a layer 10a made of a material with lower moisture permeability than paper is also provided inside, which prevents moisture from entering the interior of the housing member 10 and ensures excellent moisture resistance. Furthermore, since paper accounts for more than 50% of the mass, it becomes the main material of the housing member 10. The housing member 10 can be processed to have a reference mark that can be used as waste paper, which allows for the provision of an environmentally friendly housing 1.

[0277] (Aspect 2)

[0278] The absorbent article 20 has a housing 1 having intersecting vertical, horizontal, and front-back directions. The housing member 10 includes a bottom seal 19 and a pair of side seals 18. The pair of side seals 18 are located at both ends in the horizontal direction and are joined along the vertical direction. The bottom seal 19 is located at the lower end in the vertical direction and is joined along the horizontal direction. In the bottom seal 19 and the pair of side seals 18, the following low moisture permeability materials are fused to each other adjacent to each other in the front-back direction: a low moisture permeability material disposed in the innermost layer 10b of one surface constituting the housing member 10; and a low moisture permeability material disposed in the innermost layer 10b of a surface different from said one surface.

[0279] Therefore, in all the sealing parts of the containment member 10, the low moisture permeability material disposed in the innermost layer 10b is fused to each other, which makes it unlikely that moisture will enter the containment body 1.

[0280] (Aspect 3)

[0281] The absorbent article 20 has a containment body 1, wherein the containment body 1 has intersecting vertical, horizontal and front-back directions, and the outermost layer 10a is disposed on the upper and lower sides of the sealing part in the vertical direction; the low moisture permeability material included in the innermost layer 10b is disposed on the upper and lower sides of the sealing part 14 in the vertical direction.

[0282] Therefore, the upper part of the sealing part 14 is the part that is to be gripped when the receiving member 10 is opened, and a low moisture permeability material and an outermost layer 10a are provided in such an upper part, making it unlikely that the gripped part will be torn.

[0283] (Aspect 4)

[0284] The containment 1 of the absorbent article 20 includes: the absorbent article 20; and a containment member 10 for containing the absorbent article 20, wherein the containment member 10 includes an outermost layer 10a and an innermost layer 10b, at least a portion of the outermost layer 10a is formed of paper, and at least a portion of the innermost layer 10b is formed of resin, wherein the resin constituting the innermost layer 10b includes biomass plastic.

[0285] By doing so, the surface of the containment member 10 (outermost layer 10a) is made of paper, which makes it easy for the user to recall that the containment body 1 is an environmentally friendly product. Meanwhile, by forming the inside of the containment member 10 (innermost layer 10b) with resin, moisture resistance is increased and the absorbent item 20 contained therein is prevented from becoming wet. Furthermore, since the resin constituting the innermost layer 10b is made of biomass plastic, the content of petroleum-derived substances can be reduced compared to conventional products. Therefore, a containment body 1 that provides an environmentally friendly absorbent item 20 with excellent moisture resistance can be provided.

[0286] (Aspect 5)

[0287] The containment 1 of the absorbent article 20, wherein the weight of the biomass plastic included in the resin constituting the innermost layer 10b is more than 10% of the weight of the containment member 10.

[0288] By doing so, the standard for the percentage of biomass plastic content (biomass percentage of 10% or more) stipulated in the "Biomass Labelling System" established by the Japan Organic Resources Association can be met. This allows the system's certification mark (biomass label 10%) to be displayed, making it easy for users to identify that the container is an environmentally friendly product.

[0289] (Aspect 6)

[0290] The containment 1 of the absorbent article 20, wherein at least a portion of the components constituting the absorbent article 20 comprises biomass plastic.

[0291] By doing so, biomass plastics are also included in absorbent articles 20, making it easier for users to recognize that absorbent articles 20 are environmentally friendly products, and users can use absorbent articles 20 with peace of mind.

[0292] (Aspect 7)

[0293] The containment 1 of the absorbent article 20 includes a ratio of the weight of the biomass plastic contained in the containment member 10 to the weight of the containment member 10 that is greater than the ratio of the weight of the biomass plastic contained in the absorbent article 20 to the weight of the absorbent article 20.

[0294] By doing so, by increasing the proportion of biomass plastics in the containment component 10 to a higher level than that in the absorbent article 20, the proportion of petroleum-derived raw materials in the containment component 10 can be reduced by a corresponding amount. This allows for a reduction in the amount of petroleum-derived raw materials used and results in a more environmentally friendly containment body 1 for the absorbent article 20.

[0295] (Aspect 8)

[0296] The containment 1 of the absorbent article 20 includes: a containment member 10, wherein at least a portion of the outermost layer 10a is formed of paper; and an absorbent article 20 contained in the containment member 10, wherein at least a portion of the outermost layer 10a is formed of nonwoven fabric, wherein the minimum value of the coefficient of kinetic friction MIU of the innermost layer 10b of the containment member 10 is less than the coefficient of kinetic friction MIU of the outermost layer 10a of the containment member 10 formed of paper.

[0297] Compared to the case where the coefficient of dynamic friction MIU of the innermost layer 10b is greater than that of the outermost layer 10a, this allows for the suppression of fuzzing of the nonwoven fabric when the absorbent item 20 is removed, while maintaining the appearance of the containment 1 as paper.

[0298] (Aspect 9)

[0299] The containment 1 of the absorbent article 20, wherein at least a portion of the outermost layer 10a of the absorbent article 20 is an opposing surface facing the containment member 10, and the minimum value of the coefficient of kinetic friction MIU of the innermost layer 10b of the containment member 10 is less than the minimum value of the coefficient of kinetic friction MIU of the opposing surface.

[0300] Compared to the case where the coefficient of dynamic friction MIU of the innermost layer 10b is greater than the coefficient of dynamic friction MIU of the opposing surface of the absorbent article 20, this makes it possible to suppress fuzzing of the nonwoven fabric when the absorbent article 20 is removed.

[0301] (Aspect 10)

[0302] The containment 1 of the absorbent article 20 has a coefficient of kinetic friction MIU of the outermost layer 10a formed of paper that is less than the maximum value of the coefficient of kinetic friction MIU of the outermost surface of the absorbent article 20.

[0303] Compared to the case where the coefficient of dynamic friction MIU of the outermost layer 10a is greater than the coefficient of dynamic friction MIU of the opposing surface of the absorbent article 20, the fuzzing of the nonwoven fabric caused by the contact between the receiving member 10 and the absorbent article 20 after the absorbent article 20 is removed can be suppressed.

[0304] (Aspect 11)

[0305] The containment 1 of the absorbent article 20, wherein at least a portion of the outermost surface of the absorbent article 20 is an opposing surface facing the containment member 10, wherein the minimum value of the coefficient of kinetic friction MIU of the surface of the absorbent article 20 located closest to the skin is less than the minimum value of the coefficient of kinetic friction MIU of the opposing surface.

[0306] Compared to the case where the coefficient of kinetic friction MIU of the absorbent article 20 closest to the skin is greater than that of the opposing surface, the wearer is less likely to experience discomfort when the absorbent article 20 is rubbed while worn. Furthermore, when the innermost layer 10b and the opposing surface rub against each other, the portions of the surfaces closest to the skin tend to slide against each other; therefore, the opposing surface easily moves with the innermost layer 10b, and pilling can be suppressed.

[0307] (Aspect 12)

[0308] The containment 1 of the absorbent article 20, wherein at least a portion of the outermost surface of the absorbent article 20 is an opposing surface facing the containment member 10, wherein the minimum value of the dynamic friction coefficient MIU of the opposing surface is less than the minimum value of the dynamic friction coefficient MIU of the surface of the absorbent article 20 located closest to the skin.

[0309] Compared to the case where the coefficient of dynamic friction MIU of the opposing surface of the absorbent article 20 is greater than that of the surface closest to the skin, this makes it easier to remove the absorbent article 20 from the containment member 10.

[0310] (Aspect 13)

[0311] The containment 1 of the absorbent article 20, wherein the minimum surface roughness SMD of the innermost layer 10b of the containment member 10 is less than the surface roughness SMD of the outermost layer 10a of the containment member 10 formed of paper.

[0312] By doing so, the surface roughness SMD is smaller in the innermost layer 10b of the containing member 10, and this suppresses damage to the absorbent article 20 due to friction. In the outermost layer 10a, the surface roughness SMD is larger, and this makes the outermost layer 10a easier to grip with fingers, making it easier to keep the containing body 1.

[0313] (Aspect 14)

[0314] The containment 1 of the absorbent article 20, wherein at least a portion of the outermost surface of the absorbent article 20 is a facing surface of the containment member 10, wherein the minimum surface roughness SMD of the innermost layer 10b of the containment member 10 is less than the minimum surface roughness SMD of the facing surface.

[0315] By doing so, the surface roughness SMD is smaller in the innermost layer 10b of the housing member 10, and this suppresses damage to the absorbent article 20 due to friction. In the opposing surface of the absorbent article 20, the surface roughness SMD is larger, and this makes the opposing surface easier to grip with fingers, making it easier to remove the absorbent article 20 from the housing member 10.

[0316] (Aspect 15)

[0317] The absorbent article 20 is contained in a housing 1, wherein the housing 1 has intersecting vertical, horizontal and front-back directions, and the upper end of the housing member 10 is provided with an opening 10pn that opens when the absorbent article 20 is removed. When the housing 1 is upright and the lower end of the housing 1 is in contact with the ground plane, a gap is provided between the absorbent article 20 and the opening 10pn.

[0318] By doing so, a hand can be placed into the gap, and this makes it easier to unfold the containment member 10 with fingers, making it less likely that the absorbent item 20 will be rubbed when it is removed.

[0319] It should be noted that, such as Figure 1 As shown, with the containment body 1 upright and its lower end in contact with the ground, the absorbent article 20 contacts the bottom surface 13 of the containment member 10 due to its own weight and is positioned at the center in the left-right direction. This state can be achieved, for example, by grasping and lifting the upper end of the containment member 10, slightly shaking the upper end up and down, and then slowly uprighting the containment body 1. Furthermore, with the containment body 1 upright and its lower end in contact with the ground, if at least a portion of the indicator 23 overlaps with the non-window area 17, the absorbent article 20 can move within the internal space. That is, the absorbent article 20 can contact the bottom surface portion 13 of the containment member 10 and be positioned at any position in the internal space in the left-right direction.

[0320] (Aspect 16)

[0321] The containment body 1 of the absorbent article 20, wherein the opening 10pn is located below the upper end of the containment member 10.

[0322] By doing so, another gap (gap + portion from opening 10pn to the upper end) is formed compared to the case where the opening 10pn is located at the upper end of the receiving member 10, and this makes it easier to further unfold the receiving member 10 with fingers, making it less likely that the absorbent item 20 will be rubbed when it is removed.

[0323] (Aspect 17)

[0324] The containment body 1 for the absorbent items 20 contains multiple absorbent items 20, which are arranged side by side in the front-to-back direction, but not in the up-down or left-to-right direction.

[0325] By doing so, there is no situation where one row and another row are in contact with each other, unlike the case where the absorbent material 20 is configured in two or more rows, which makes it possible to suppress the collapse of the alignment of the rows.

[0326] (Aspect 18)

[0327] The containment 1 of the absorbent article 20, wherein, when the containment 1 is upright and the lower end of the containment 1 is in contact with the ground plane, the upper and lower ends of the window area 16 overlap with the absorbent article 20 when viewed in the front-back direction.

[0328] This makes the boundary between window area 16 and non-window area 17 more prone to folding due to changes in rigidity. Therefore, overlapping the upper and lower ends with the absorbent material 20 makes such a portion less likely to fold.

[0329] (Aspect 19)

[0330] The containment body 1 of the absorbent article 20, wherein, with the containment body 1 upright and its lower end in contact with the ground plane, the upper end of the window area 16 is positioned above the center of the absorbent article 20 in the vertical direction.

[0331] This makes the boundary between the window area 16 and the non-window area 17 easier to fold due to changes in rigidity. For example, when the used absorbent item 20 is folded in the vertical direction, the container 1 can be easily made compact when discarded by placing the used absorbent item 20 into the container 1.

[0332] (Aspect 20)

[0333] The absorbent article 20 has a housing 1, wherein the housing 1 has intersecting vertical, horizontal and front-back directions, and the housing member 10 includes a front surface 11, a rear surface 12 and a bottom surface 13. An angle brace for forming the bottom surface 13 is provided between the lower end of the front surface 11 and the lower end of the rear surface 12. No angle brace is provided at the upper end of the housing member 10.

[0334] Since the lower end cannot be opened, the lower side of the housing member 10 is unfolded by pre-setting a gusset, which makes it possible to suppress friction between the housing member 10 and the absorbent item 20 when the absorbent item 20 is removed.

[0335] (Aspect 21)

[0336] The absorbent article 20 is housed in a housing 1, wherein the absorbent article 20 includes an abdomen 26 that contacts the ventral side of the wearer and a back 27 that contacts the dorsal side of the wearer, the abdomen 26 and the back 27 facing each other, and the absorbent article 20 is housed in a housing member 10 such that the crotch side of the absorbent article 20 is positioned on the upper side of the housing 1.

[0337] (Aspect 22)

[0338] The absorbent article 20 has a housing 1 in which a product graphic 25 is printed. When the housing 1 is upright and the lower end of the housing 1 is in contact with the ground plane, at least a portion of the product graphic 25 can be visually identified from the outside of the housing member 10 through the window area 16.

[0339] This allows consumers to inspect the product graphics 25 of the absorbent item 20 without having to open the absorbent item during display, etc.

[0340] (Aspect 23)

[0341] The containment 1 of the absorbent article 20 includes a product graphic 25 that includes a mark representing at least one of the following: the name of the country where the absorbent article 20 is manufactured; a logo representing the name of the company that manufactures or sells the absorbent article 20; a logo representing the product name of the absorbent article 20; and the material used in the absorbent article 20.

[0342] This allows consumers to inspect at least one of the following without opening the absorbent item during display or other purposes: the country in which the absorbent item is manufactured; the logo of the manufacturing company; the logo of the product name; and the materials used.

[0343] (Aspect 24)

[0344] The absorbent article 20 includes an abdominal 26 that contacts the wearer's ventral side and a back 27 that contacts the wearer's dorsal side. When the containment 1 is upright and its lower end is in contact with the ground plane, one of the abdominal 26 and the back 27 faces the window area.

[0345] This allows consumers to inspect the front or back of the absorbent article 20 (diaper) which has a larger area than the side surface of the absorbent article 20 without opening the absorbent article 20 for display or other purposes.

[0346] (Aspect 25)

[0347] The absorbent article 20 is contained in a housing 1, wherein the absorbent article 20 includes an abdomen 26 and a back 27, the abdomen 26 is in contact with the ventral side of the wearer, the back 27 is in contact with the dorsal side of the wearer, the abdomen 26 and the back 27 face each other, the absorbent article 20 is contained such that the crotch side of the absorbent article 20 is positioned on the lower side of the housing 1, the absorbent article 20 has a crotch area, when the absorbent article 20 in the contained state is divided into four equal areas in the vertical direction, the crotch area is located at the lowest position, when the housing 1 is upright and the lower end of the housing 1 is in contact with the ground plane, when viewed in the front-back direction, at least a portion of the crotch area overlaps with the non-window area 17.

[0348] Since the indicator 23 is particularly needed in the crotch area, overlapping the crotch area with the non-window area 17 suppresses the reaction of the isochronous indicator 23 with ultraviolet light. This allows for the suppression of degradation of the indicator 23.

[0349] (Aspect 26)

[0350] The containment 1 of the absorbent article 20 includes an indicator 23 of the absorbent article 20 comprising a portion located on the abdomen 26 and a portion located on the back 27, one of the abdomen 26 and the back 27 facing the window area 16, and the portion of the indicator 23 located on the abdomen 26 and the back 27 extending upward in the vertical direction longer than the portion of the indicator 23 located on the abdomen 26 and the back 27.

[0351] Compared to the case where the shorter portion of indicator 23 faces the window area 16, this makes it easier for consumers to visually identify indicator 23 from the outside during displays, while suppressing the deterioration of the crotch area in the non-window area 17.

[0352] (Aspect 27)

[0353] The containment 1 of the absorbent article 20, wherein, in the state where the containment 1 is upright and the lower end of the containment 1 is in contact with the ground plane, the vertical length of the overlapping portion of the non-window area 17 and the indicator 23 located on one of the abdomen 26 and back 27 is longer than the vertical length of the overlapping portion of the window area 16 and the indicator 23 located on that one.

[0354] Therefore, the longer portion of the indicator 23 can be visually identified from the window area 16, and at the same time, making the length of the area overlapping with the non-window area 17 longer than the shorter case can suppress the deterioration of the indicator 23.

[0355] (Aspect 28)

[0356] The containment 1 of the absorbent article 20, wherein, when the containment 1 is upright and the lower end of the containment 1 is in contact with the ground plane, the upper end of the window area 16 does not overlap with the absorbent article 20 when viewed in the front-back direction.

[0357] This allows consumers to inspect the absorbent item 20 up to one end without having to open the absorbent item 20 during display or other purposes.

[0358] (Aspect 29)

[0359] The absorbent article 20 has a housing 1, wherein the housing member 10 includes a front surface 11, a rear surface 12 and a bottom surface 13, and a corner brace for forming the bottom surface 13 is provided between the lower end of the front surface 11 and the lower end of the rear surface 12. The upper end of the housing member 10 is not provided with a corner brace, and the bottom surface 13 is engaged with at least one of the front surface 11 and the rear surface 12 at the lower end of the housing member 10.

[0360] Therefore, since the number of component layers joined in the lower end of the housing member 10 is greater than the number of component layers joined in the upper end of the housing member 10, the lower end of the housing member 10 is reinforced, thereby preventing the indicator 23 from being exposed due to damage to the lower end and preventing the deterioration of the indicator 23.

[0361] (Aspect 30)

[0362] The absorbent article 20 is housed in a housing 1, wherein the absorbent article 20 includes an abdomen 26 that contacts the ventral side of the wearer and a back 27 that contacts the dorsal side of the wearer, the abdomen 26 and the back 27 facing each other, and the absorbent article 20 is housed in a housing member 10 such that the crotch side of the absorbent article 20 is positioned on the underside of the housing 1.

[0363] Because the crotch side of the absorbent article 20 is thicker, the portion of the receiving member 10 containing the crotch side becomes more prone to tearing. However, compared to the case where the crotch side is located on the upper side of the receiving member 10, the number of member layers joined at the lower end of the receiving member 10 is greater than the number of member layers joined at the upper end (the lower end is more firmly joined). This makes it possible to prevent the indicator 23 from being exposed due to damage to the receiving member 10 and to suppress the deterioration of the indicator 23.

[0364] (Aspect 31)

[0365] The housing 1 of the absorbent article 20 includes: a housing member 10; and an absorbent article 20 housed in the housing member 10 and including an absorbent core 22a, wherein a pattern 15 is printed on the housing member 10, and when the absorbent article 20 is positioned at a specific location in the housing member 10, at least a portion of the pattern 15 does not overlap with the absorbent core 22a when the absorbent article 20 is viewed in the thickness direction.

[0366] When multiple containment bodies 1 are packaged together, this makes it possible to suppress friction between adjacent containment bodies 1 on the graphic 15 or the transfer of the color of the graphic 15 to the absorbent material 20.

[0367] It should be noted that since the absorbent article 20 can move within the internal space of the receiving member 10, the aforementioned positional relationship between the absorbent article 20 (absorbent core 22a) and the pattern 15 may not be satisfied depending on its position within the internal space of the receiving member 10. Therefore, the following describes a state where the absorbent article 20 is positioned at a specific location within any possible location (any location within the internal space) in the internal space and satisfies the aforementioned positional relationship. It should be noted that in some cases, the aforementioned positional relationship between the absorbent article 20 and the pattern 15 is always satisfied, and in such cases, the absorbent article 20 can take any position within the internal space. It should be noted that the statement "when the absorbent article 20 is positioned at a specific location within the receiving member 10, at least a portion of the pattern 15 does not overlap with the absorbent core 22a when viewed in the thickness direction" does not mean that if the absorbent article 20 moves within the receiving member 10, the statement "when the absorbent article 20 is viewed in the thickness direction, at least a portion of the pattern 15 does not overlap with the absorbent core 22a" is satisfied at all locations. Rather, it means that it is sufficient to achieve non-overlap at any given location. This also applies to the statement "in the state where the absorbent article 20 is positioned at a specific location within the containing member 10".

[0368] (Aspect 32)

[0369] The containment 1 of the absorbent article 20, wherein, when the absorbent article 20 is positioned at a specific location in the containment member 10, at least a portion of the pattern 15 does not overlap with the absorbent article 20 when viewed in the thickness direction.

[0370] When multiple containment bodies 1 are packaged together, this makes it possible to suppress friction between adjacent containment bodies 1 on the graphic 15 or the transfer of the color of the graphic 15 to the absorbent material 20.

[0371] (Aspect 33)

[0372] The containment 1 of the absorbent article 20, wherein, when the absorbent article 20 is positioned at a specific location in the containment member 10, the area where the pattern 15 and the absorbent article 20 do not overlap when viewed along the thickness direction is larger than the area where the pattern 15 and the absorbent article 20 overlap when viewed along the thickness direction.

[0373] Therefore, compared to cases where the non-overlapping area is smaller, friction of the pattern 15 or the transfer of the color of the pattern 15 to the absorbent item 20 can be suppressed.

[0374] (Aspect 34)

[0375] The containment 1 of the absorbent article 20, wherein at least a portion of the outermost layer 10a of the containment member 10 is formed of paper, the containment member 10 has an internal space, the internal space has a space where the absorbent article 20 exists and a gap space where the absorbent article 20 does not exist, and when the absorbent article 20 is positioned at a specific location in the containment member 10, when the absorbent article 20 is viewed along the thickness direction, at least a portion of the pattern 15 overlaps with the gap space.

[0376] Therefore, since the absorbent material 20 is not present in the gap space, friction of the pattern 15 overlapping with such a portion or the transfer of the color of the pattern 15 to the absorbent material 20 can be suppressed.

[0377] (Aspect 35)

[0378] The absorbent article 20 has a housing 1, wherein the housing 1 has intersecting vertical, horizontal and front-back directions, and a housing member 10 includes a front surface 11, a rear surface 12 and a bottom surface 13, and a corner brace for forming the bottom surface 13 is provided between the lower end of the front surface 11 and the lower end of the rear surface 12. The upper end of the housing member 10 is not provided with a corner brace, and at least a portion of the pattern 15 is positioned on the upper part of the housing member 10.

[0379] Therefore, the distance between the front surface 11 and the rear surface 12 at the center in the left-right direction is shorter in the upper part than in the lower part. Therefore, printing the graphic 15 on the upper part can widen the space between the graphics 15 of adjacent housings 1, which can suppress friction of the graphics 15 of housing members 10 or the transfer of the color of the graphics 15 to the absorbent article 20.

[0380] (Aspect 36)

[0381] The absorbent article 20 is contained in a housing 1, wherein the housing 1 has intersecting vertical, horizontal and front-back directions, and the upper end of the housing member 10 is provided with an opening 10pn, which opens when the absorbent article 20 is removed, and the graphic 15 is not printed on the opening 10pn.

[0382] Therefore, since the graphic 15 is not printed on the opening 10pn that is touched by the hand when the absorbent article 20 is opened, ink transfer to the hand and blurring of the graphic 15 can be suppressed.

[0383] ===Other Implementation Methods===

[0384] The above embodiments have been described to facilitate understanding of the invention, but are not intended to limit the invention. This disclosure may be modified or altered in various ways without departing from its spirit, and may include equivalents thereof.

[0385] In the above embodiment, the receiving member 10 is formed by a front surface 11, a rear surface 12, and a bottom surface 13; however, the construction of the receiving member 10 is not limited to this. For example, it is acceptable for the front surface 11, the rear surface 12, and the bottom surface 13 to be formed by a single sheet member, and for the receiving member 10 to be formed by folding the single sheet member at a predetermined position. That is, the front surface 11, the bottom surface 13, and the rear surface 12 are formed by... Figure 3 It is acceptable for the housing member 10 to consist of a continuous single member in the lower part of the vertical direction without a bottom seal 19 for sealing these surfaces. Furthermore, the housing member 10 can be configured without a bottom surface 13, and in this case, the lower ends of the front surface 11 and the rear surface 12 can engage with each other.

[0386] Furthermore, in the above embodiment, the absorbent article 20 is housed such that the back 27 of the absorbent article 20 faces the window region 16, and the ventral indicator 23a extends upward in the vertical direction longer than the back indicator 23b. However, the configuration is not limited to this. For example, a configuration in which the back indicator 23b is longer than the ventral indicator 23a and the abdomen 26 of the absorbent article 20 and the window region 16 face each other, or the back 27 of the absorbent article 20 and the window region 16 face each other, is acceptable.

[0387] List of reference numerals

[0388] 1: Absorbent Material Containment Container (Containment Container)

[0389] 10: Retaining component, 10a: Outermost layer, 10b: Innermost layer

[0390] 10pn: Opening,

[0391] 11: Front surface, 12: Rear surface, 13: Bottom surface

[0392] 14: Sealing part,

[0393] 15: Graphics

[0394] 16: Window area

[0395] 17: Non-window area

[0396] 18: Side sealing part

[0397] 19: Bottom sealing part,

[0398] 20: Absorbent items

[0399] 21: Exterior body,

[0400] 22: Endosome; 22a: Absorbent; 22b: Skin-side sheet; 22c: Non-skin-side sheet.

[0401] 23, 23a and 23b: Indicators,

[0402] 24: Fastening strap

[0403] 25: Graphics

[0404] 26: Abdomen,

[0405] 27: Back

[0406] 1001: Absorbent Material Container (Container) (Second Embodiment)

[0407] 1010: Containing component, 1010a: Outermost layer, 1010b: Innermost layer.

[0408] 1010E: Opening; 1010cr: Bending area.

[0409] 1011: Front component, 1011a: Outermost layer, 1011b: Innermost layer

[0410] 1012: Rear component, 1012a: Outermost layer, 1012b: Innermost layer

[0411] 1013: Film component, 1013a: Outermost layer, 1013b: Innermost layer.

[0412] 1014: Sealing part,

[0413] 1015: Graphic,

[0414] 1151: Graphic, 1151A: Part 1, 1151B: Part 2

[0415] 1016: Window area,

[0416] 1017: Side sealing part

[0417] 1018: Bottom sealing part,

[0418] 1020: Absorbent items

[0419] 1021: Exterior body,

[0420] 1022: Endosome; 1022a: Absorbent; 1022b: Skin-side sheet; 1022c: Non-skin-side sheet.

[0421] 1023: Indicator;

[0422] 1024: Fastening strap,

[0423] 1025: Graphic,

[0424] 2001: Absorbent Material Containment Container (Containment Container) (Third Embodiment)

[0425] 2010: Containment components,

[0426] 2010s: Sheet components (stacked sheet components),

[0427] 2010a: outermost layer, 2010agf: front opposing surface, 2010agb: rear opposing surface.

[0428] 2010b: Innermost layer,

[0429] 2010E: Opening,

[0430] 2011: Front component, 2011a: Outermost layer, 2011b: Innermost layer

[0431] 2012: Rear component, 2012a: Outermost layer, 2012b: Innermost layer.

[0432] 2013: Film components, 2013a: Outermost layer, 2013b: Innermost layer.

[0433] 2015: Drawing (side view of the housing component),

[0434] 2016: Window Department

[0435] 2017: Rear sealing section,

[0436] 2018: Side sealing part

[0437] 2020: Absorbent items

[0438] 2021: Exobody,

[0439] 2022: Endosome; 2022a: Absorbent; 2022b: Skin-side film; 2022c: Non-skin-side film.

[0440] 2023: Indicator

[0441] 2024: Fastening straps

[0442] 2025: Graphic (Side view of absorbent item),

[0443] SW1: Locking part, SW2: Locking part, BW: Plate component joint.

[0444] G1: Corner brace, G2: Corner brace

Claims

1. An absorbent article containment body, comprising: Absorbent materials; as well as A housing component that houses the absorbent article. The housing member includes an outermost layer, at least a portion of which is formed of paper. At least a portion of the graphic is printed in the outermost layer of the area with a Buick smoothness of less than 20 seconds. The absorbent article containment has intersecting vertical, horizontal, and front-back directions. An opening along the left-right direction is formed at the upper end of the receiving member for removing the absorbent article. The containing member houses multiple absorbent articles. The multiple absorbent articles are housed in the receiving member in a manner that is not folded with the waist opening side opposite the crotch side and with the crotch side located on the underside. The plurality of absorbent articles are arranged side by side in the front-back direction and in the thickness direction of the absorbent articles, but not in the vertical direction and the left-right direction. The receiving member is provided with a window, through which the absorbent article can be visually identified from the outside. The receiving member has a front surface and a rear surface in the front-rear direction. The window portion is only located on the front surface. The graphic is formed using water-based ink. At least a portion of the outermost layer includes an unbleached pulp region formed from unbleached pulp. The graphic is printed in the unbleached pulp area.

2. The absorbent article containment according to claim 1, wherein, The graphic includes a first part and a second part different from the first part, and The first part and the second part have different positions in the front-back direction.

3. The absorbent article containment according to claim 2, wherein, The absorbent article containment also includes a side seal. At both ends in the left and right directions, the side sealing portion is the part where the surfaces constituting the receiving member are adjacent and fused together in the front-back direction. The surfaces are different from each other. The first part is positioned in a location that does not overlap with the side seal, and The second part is positioned at a location that overlaps with the side seal.

4. The absorbent article containment according to any one of claims 1-3, wherein, The innermost layer is stacked inside the outermost layer. The innermost layer is at least partially formed of resin.

5. The absorbent article containment according to claim 4, wherein, The receiving member includes the innermost window portion exposed to the surface side. The window portion is formed by removing at least a portion of the outermost layer.

6. The absorbent article containment according to claim 5, wherein, A pattern is provided on at least a portion of the outermost surface of the absorbent article. The graphic of the absorbent article can be visually identified from the outside of the receiving member through the window, and The maximum concentration of the pattern disposed on the outermost layer of the containment member is higher than the maximum concentration of the pattern disposed on the outermost surface of the absorbent article.

7. The absorbent article containment according to any one of claims 1-3, wherein, The innermost layer is stacked inside the outermost layer. The innermost layer is at least partially formed of resin, and The average value of the dynamic friction coefficient of the innermost layer of the housing member is less than the average value of the dynamic friction coefficient of the outermost layer of the housing member.

8. The absorbent article containment according to any one of claims 1-3, wherein, The receiving member includes a window portion and a non-window area. The absorbent article can be visually identified from the outside through the window portion, but cannot be visually identified from the outside through the non-window area. The absorbent article is equipped with an indicator for detecting excrement. The absorbent article includes: an abdomen that contacts the wearer's ventral side, and a back that contacts the wearer's dorsal side, with the abdomen and back facing each other. The absorbent article has a crotch area, which is located at the lowest position when the absorbent article in its contained state is divided into four equal areas in the vertical direction. The indicator is at least located in the crotch area. With the container upright and its lower end in contact with the ground plane, at least a portion of the crotch area overlaps with the non-window area when viewed in the front-back direction.

9. An absorbent object containment having intersecting vertical, horizontal, and front-back directions. The absorbent article containment includes: Absorbent materials; as well as A housing component that houses the absorbent article. The housing component includes an outermost layer and an innermost layer. At least a portion of the outermost layer is made of paper. At least a portion of the innermost layer is formed of resin. The receiving component has a gusseted structure. The gusseted structure is a structure in which the receiving member is folded inward from both outer sides in the vertical direction so that the outermost part faces each other in the front-back direction. The receiving member includes a joint portion and a non-joint portion at both ends in the left-right direction. The joint is the part where the innermost layers face each other and join together in the front-back direction. The non-joined portion is the outermost part that faces each other in the front-back direction and does not join. The receiving member has a welded joint formed by the receiving members overlapping and being welded together along the left-right direction.

10. The absorbent article containment according to claim 9, wherein, At both ends of the receiving member in the left-right direction, The entire portion of the outermost layer that faces each other in the front-back direction is the non-jointing portion.

11. The absorbent article containment according to claim 9 or 10, wherein, The receiving component includes a side seal. At both ends in the left and right directions, the side sealing portion is a portion of the resin that constitutes the innermost layer that is fused together in an adjacent state in the front and back directions.

12. The absorbent article containment according to claim 9 or 10, wherein, In the receiving member, in a region having a predetermined width from the outermost end in the left-right direction, The innermost portions do not join each other in the front-back direction where they face each other.

13. The absorbent article containment according to claim 9 or 10, wherein, A graphic is set in at least a portion of the outermost layer, and The graphic is formed using water-based ink.

14. The absorbent article containment according to claim 9 or 10, wherein, The receiving member includes the innermost window portion exposed to the surface side. The window portion is formed by removing at least a portion of the outermost layer.

15. The absorbent article containment according to claim 14, wherein, The side pattern of the receiving component is provided in at least a portion of the outermost layer. The absorbent article side pattern is disposed on at least a portion of the outermost surface of the absorbent article. The absorbent article side pattern can be visually identified from the outside of the receiving member through the window, and The maximum concentration of the pattern on the side of the containment component is higher than the maximum concentration of the pattern on the side of the absorbent article.

16. The absorbent article containment according to claim 9 or 10, wherein, The outermost layer is formed of paper made from unbleached pulp.

17. The absorbent article containment according to claim 9 or 10, wherein, The average value of the dynamic friction coefficient of the innermost layer of the housing member is less than the average value of the dynamic friction coefficient of the outermost layer of the housing member.

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