Absorbent article package

Abstract

A kind of absorbent article package body (1), it has absorbent article (10) and packing (21), wherein, absorbent article (10) is folded multiple times or is rolled into roll in the state of being placed in the inner side of packing (21), absorbent article has length direction, width direction and thickness direction crossing each other, the end of length direction is provided with joint (2) along width direction, packing (21) is engaged with each other at the joint, when unfolding absorbent article package body (1), at least local of the edge (21a) of packing is first unfolded, in the central of length direction, the length in thickness direction is different from the length in width direction, half of the length in width direction is shorter than the length in thickness direction, when observing from end side to inner side in length direction, in the outline of absorbent article package body (1), in the case where the point in thickness direction farthest from joint (2) is taken as vertex, at least local of the edge (21a) of packing is located at different position from vertex (Za).

Description

Technical Field

[0001] This invention relates to packaging for absorbent articles. Background Technology

[0002] Absorbent articles such as sanitary napkins are typically sold in the market individually packaged by folding them together with a package and sealing predetermined portions of the package. Since individual packages of sanitary napkins and similar items are frequently carried, compact individual packages are desirable. Patent Document 1 discloses a compact individual package of absorbent articles formed by rolling the absorbent article and the package together.

[0003] Existing technical documents

[0004] Patent documents

[0005] Patent Document 1: Japanese Patent Application Publication No. 2007-97923 Summary of the Invention

[0006] The problem the invention aims to solve

[0007] If the individual packaging of an absorbent article is made into a compact package like the one disclosed in Patent Document 1, then a strong tension is applied to the package, making it difficult to hold the edges of the package for opening, thus posing a risk that the individual packaging will become difficult to unfold.

[0008] Therefore, the present invention was made in view of the problems described above, and its object is to provide an easily unfoldable absorbent article packaging.

[0009] Solution for solving the problem

[0010] The main invention for achieving the above-mentioned objective is an absorbent article packaging body comprising: an absorbent article; and a packaging element for packaging the absorbent article, characterized in that the absorbent article is folded multiple times or rolled into a roll while placed on the inner side of the packaging element, the absorbent article having intersecting length, width, and thickness directions, the ends of the length direction having a joint along the width direction, the packaging elements being joined together at the joint, and when the absorbent article packaging body is unfolded, at least a portion of the edge of the packaging element is unfolded first, at the center of the length direction, the length of the thickness direction is different from the length of the width direction, and half of the length of the width direction is shorter than the length of the thickness direction, and when viewed from the end side inward in the length direction, with the point in the outline of the absorbent article packaging body furthest from the joint in the thickness direction as the vertex, at least a portion of the edge of the packaging element is located at a position different from the vertex.

[0011] Other features of the invention will be explained by way of description in this specification and the accompanying drawings.

[0012] The effects of the invention

[0013] According to the present invention, it is easy to unfold a compact form of absorbent article packaging. Attached Figure Description

[0014] Figure 1 This is a top view of the skin side of the package 1 in its unfolded state.

[0015] Figure 2 This is a top view of the package 1 in its unfolded state, on the non-skin side.

[0016] Figure 3 This is a top view of package 1 in its packaged state.

[0017] Figure 4 This diagram illustrates the opening of package 1.

[0018] Figure 5 This diagram illustrates the folds F1 to F7 of the packaging body 1.

[0019] Figures 6A to 6D This is a diagram illustrating the unfolding of package 1.

[0020] Figures 7A to 7C This is a diagram illustrating the unfolding of package 1.

[0021] Figure 8 yes Figure 3 Sectional view in direction AA.

[0022] Figure 9 This diagram illustrates the state of holding package 1.

[0023] Figure 10 This is a diagram illustrating another embodiment of the packaging body 100. Detailed Implementation

[0024] Based on the description in this specification and the accompanying drawings, at least the following matters become clear.

[0025] An absorbent article packaging body comprises: an absorbent article; and a packaging component for packaging the absorbent article, characterized in that the absorbent article is folded multiple times or rolled into a roll while placed on the inner side of the packaging component, the absorbent article having intersecting length, width, and thickness directions, the ends of the length direction having a joint along the width direction, the packaging components being joined together at the joints, and when the absorbent article packaging body is unfolded, at least a portion of the edge of the packaging component is unfolded first, at the center of the length direction, the length of the thickness direction is different from the length of the width direction, and half of the length of the width direction is shorter than the length of the thickness direction, and when viewed from the end side inward in the length direction, with the point in the outline of the absorbent article packaging body furthest from the joint in the thickness direction as the vertex, at least a portion of the edge of the packaging component is located at a position different from the vertex.

[0026] Even when the top portion of the absorbent packaging is under strong tension, the absorbent packaging, with its edges and tops positioned at different locations, allows the user to easily grasp the looser portion of the packaging compared to the portion under strong tension. Therefore, it is also easy to unfold the absorbent packaging, whether folded or rolled up.

[0027] For this absorbent article packaging, it is desirable that the vertex is the vertex furthest from the joint on one side in the thickness direction, and when the point furthest from the joint on the other side in the thickness direction is taken as the other vertex, when viewed from the end side inward in the length direction, at least a portion of the edge of the packaging is located at a position different from the other vertex.

[0028] According to such an absorbent packaging body, since a high tension can also be easily applied to the portion of the packaging at the other vertex, the user of the absorbent packaging body can easily pinch the loose portion of the packaging body by having at least a portion of the edge of the packaging body and the other vertex located at different positions, and can easily unfold the absorbent packaging body in a folded or rolled-up state.

[0029] For this absorbent article packaging, it is desirable that the vertex is the vertex furthest from the joint on one side in the thickness direction, and when the point furthest from the joint on the other side in the thickness direction is taken as the other side vertex, when viewed from the end side inward in the length direction, the edge of the packaging is located on one side of the joint in the thickness direction, and when the absorbent article packaging is unfolded, the portion of the packaging at the vertex on one side is unfolded before the portion of the packaging at the vertex on the other side.

[0030] According to this absorbent packaging, by setting the edge of the packaging at the position across one side vertex, the tension of the packaging is looser at the edge of the packaging across the position where a higher tension is applied to the packaging compared to the one side vertex. Therefore, it is easier to pinch the packaging and thus easier to unfold the absorbent packaging in a folded or rolled-up state.

[0031] For this absorbent article packaging, it is desirable that the vertex is the vertex furthest from the joint on one side in the thickness direction, and when the point furthest from the joint on the other side in the thickness direction is taken as the other side vertex, when viewed from the end side inward in the length direction, the edge of the packaging is located on one side further from the joint in the thickness direction, and when the absorbent article packaging is unfolded, the portion of the packaging at the other side vertex is unfolded before the portion of the packaging at the one side vertex.

[0032] With this absorbent packaging, the edges of the package are positioned so as not to cross one vertex, making it easy to pinch the edges of the package. Furthermore, the edges of the package tend to follow the contour of the absorbent packaging, thus reducing the risk of the package being accidentally unfolded and making it easier to maintain the packaging condition.

[0033] For this absorbent article packaging, it is desirable that, when viewed along the thickness direction, the edge of the packaging has a predetermined length, and the edge of the packaging is inclined relative to the length direction.

[0034] Because of the fact that the edges of the absorbent packaging are not subjected to strong tension, the packaging is easy to grip and easy to unfold.

[0035] For this absorbent article packaging, it is desirable that, when viewed from the end side inward along the length direction, the edge of the packaging has a portion aligned with the vertex and a portion not aligned with the vertex.

[0036] According to such an absorbent packaging body, when viewed from the end side inward in the length direction, even though the edge of the packaging has a portion aligned with the vertex, the edge of the packaging has a portion that is not aligned with the vertex, making the edge of the packaging looser than the vertex portion. Therefore, it is easy to pinch the loose portion of the packaging body and easy to unfold the absorbent packaging body.

[0037] For this absorbent article packaging, it is desirable that, when viewed from the end side inward along the length direction, the edge of the packaging does not have a portion aligned with the vertex.

[0038] Because the edges of the absorbent packaging are looser than the apex, it is easy to pinch the looser parts of the packaging and to unfold the absorbent packaging.

[0039] For this absorbent article packaging, it is desirable that the packaging has an adhesive portion where adjacent portions in the thickness direction are bonded and a non-adhesive portion where adjacent portions in the thickness direction are not bonded, the non-adhesive portion being disposed in a region including the edge of the packaging, and the adhesive portion being disposed adjacent to the non-adhesive portion in an intersecting direction that intersects the direction along the edge of the packaging.

[0040] According to such an absorbent packaging body, by having an adhesive portion, it is easy to maintain the packaging state of the absorbent packaging body or reduce the risk of foreign matter such as dust getting mixed into the inside of the absorbent packaging body, and by having a non-adhesive portion located on the side of the packaging body closer to the edge than the adhesive portion, it is easy to pinch the edge of the packaging body when unfolding.

[0041] For this absorbent article packaging, it is desirable that, when viewed from the end side inward along the length direction, the adhesive portion is at least partially located at a position different from the vertex.

[0042] Because such absorbent packaging has a portion that bonds the packaging to each other without applying excessive tension to the adhesive portion, it is easier to maintain the packaging condition of the absorbent packaging and reduce the risk of foreign matter such as dust getting into the inside of the absorbent packaging.

[0043] For the absorbent article packaging, it is desirable that the packaging has a strap member and a membrane member covering the absorbent article, the membrane member having an outer membrane end along the length direction and located at the position closest to the outer side of the absorbent article packaging, the strap member being peelably attached to the adjacent portion of the packaging in the thickness direction across the edge of the outer membrane end, and the edge of the side of the strap member that is first unfolded being the edge of the packaging.

[0044] Based on such absorbent packaging, it is easy to identify the part that is first unfolded when the absorbent packaging is opened.

[0045] For this absorbent article packaging, it is desirable that the absorbent article has an absorbent body for absorbing liquid, the joint having a one-side joint at one end in the length direction and a other-side joint at the other end in the length direction, one end of the absorbent body being provided between the center in the length direction and the one-side joint, and another end of the absorbent body being provided between the center in the length direction and the other-side joint, and the number of folds per unit area between the joint and the end of the absorbent body in the length direction being greater than the number of folds per unit area in the region from one end of the absorbent body to the other end of the absorbent body in the length direction.

[0046] According to this absorbent packaging, by reducing the number of pleats in the portion containing the absorbent, the absorbent packaging is easier to hold, and by increasing the number of pleats between the joint and the end of the absorbent in the length direction, the risk of the absorbent packaging slipping from the palm when held can be reduced.

[0047] For this absorbent article packaging, it is desirable that the packaging has a one-side packaging portion, a one-side adjacent packaging portion, a other-side packaging portion, and another-side adjacent packaging portion, wherein the one-side packaging portion is located at the most adjacent side in the thickness direction, the one-side adjacent packaging portion is adjacent to the one-side packaging portion from the other side of the one-side packaging portion in the thickness direction, the other-side packaging portion is located at the most adjacent side in the thickness direction, the other-side adjacent packaging portion is adjacent to the other-side packaging portion from one side of the other-side packaging portion in the thickness direction, at the joint, at least a portion of the one-side packaging portion is engaged with at least a portion of the one-side adjacent packaging portion, and at least a portion of the other-side packaging portion is engaged with at least a portion of the other-side adjacent packaging portion, the edge of the packaging is located on one side in the thickness direction, and the force for peeling the joint between the one-side packaging portion and the one-side adjacent packaging portion is greater than the force for peeling the joint between the other-side packaging portion and the other-side adjacent packaging portion.

[0048] Based on this absorbent packaging, by enhancing the peeling force when first unfolding, the packaging state of the absorbent packaging is easily maintained, and when the peeling of the adjacent packaging parts on one side has already been carried out, the peeling of the packaging parts on the other side can be carried out with less force, thus making it easy to unfold the absorbent packaging.

[0049] For this absorbent article packaging, it is desirable that the packaging has a one-side packaging portion, a one-side adjacent packaging portion, a other-side packaging portion, and another-side adjacent packaging portion, wherein the one-side packaging portion is located at the most adjacent side in the thickness direction, the one-side adjacent packaging portion is adjacent to the one-side packaging portion from the other side of the one-side packaging portion in the thickness direction, the other-side packaging portion is located at the most adjacent side in the thickness direction, the other-side adjacent packaging portion is adjacent to the other-side packaging portion from one side of the other-side packaging portion in the thickness direction, at the joint, at least a portion of the one-side packaging portion is engaged with at least a portion of the one-side adjacent packaging portion, and at least a portion of the other-side packaging portion is engaged with at least a portion of the other-side adjacent packaging portion, the edge of the packaging is located on one side in the thickness direction, and the force required to peel the joint between the one-side packaging portion and the one-side adjacent packaging portion is smaller than the force required to peel the joint between the other-side packaging portion and the other-side adjacent packaging portion.

[0050] According to this absorbent packaging, the force required to peel off the joints between adjacent packaging sections on one side when unfolding first is less than the force required to peel off the joints between packaging sections on the other side, thereby enabling the unfolding of the absorbent packaging to begin with less force.

[0051] For this absorbent article packaging, it is desirable that the length in the width direction is longer than the length in the thickness direction.

[0052] Based on this absorbent packaging, the absorbent packaging can be easily gripped and can be formed into an absorbent packaging that is easy to unfold.

[0053] For this absorbent article packaging, it is desirable that the absorbent article has an absorbent body for absorbing liquid and protective wings extending laterally in the unfolded state. The absorbent article can be folded multiple times or rolled into a roll after the protective wings are folded inward in the lateral direction. The absorbent body is provided at two ends on the outer side of the center of the length direction. Between the two ends of the absorbent body, there is a larger width portion that is longer than the length in the width direction at the center of the length direction. At least a portion of the protective wings is provided in the larger width portion. At least a portion of the edge of the packaging is provided at a position different from the larger width portion.

[0054] According to such an absorbent article packaging body, since the wider portion is the part that applies the maximum tension to the packaging, by providing at least a portion of the edge of the packaging body in a position that includes the portion other than the wider portion, it is easy to pinch the edge of the packaging body, which has a looser tension compared to the wider portion, and thus the absorbent article packaging body is easy to unfold.

[0055] For the absorbent article packaging, it is desirable that the absorbent article packaging has markings indicating the position of the edge of the packaging.

[0056] Based on this absorbent packaging, the position of the edge of the package to be unfolded first is easily identified, and the unfolding of the absorbent packaging is easy and convenient.

[0057] ===Implementation Methods===

[0058] Hereinafter, an example of an absorbent article used as the packaging body for absorbent articles of the present invention is a sanitary napkin. However, the absorbent article is not limited to sanitary napkins; for example, it may be a panty liner, absorbent pad (for mild incontinence), etc.

[0059] <<Basic Structure of Packaging (Absorbent Material Packaging) 1>>

[0060] Figure 1 and Figure 2 This is a top view of package 1 in its unfolded state. Figure 1 This is an image observed from the skin-side view of sanitary napkin 10. Figure 2 This is a diagram observed from the non-skin side of a menstrual pad 10. Figure 2 The package 20 is indicated by a dashed line in the attached drawing for easy observation. Figure 1 and Figure 2 The central CC in the figure shows the center of the package 1 in the horizontal direction when it is unfolded.

[0061] The absorbent article packaging body 1 includes a sanitary napkin 10 and a package 20 that separately packages the sanitary napkin 10. In the following description, the absorbent article packaging body 1 will also be referred to as "packaging body 1" and the sanitary napkin 10 will also be referred to as "sanitary napkin 10".

[0062] <<Basic Structure of Sanitary Napkins>>

[0063] The sanitary napkin 10 has mutually orthogonal transverse, longitudinal, and thickness directions. In the longitudinal direction of the sanitary napkin 10, the side that contacts the wearer's lower abdomen is designated as the front side, and the side that contacts the wearer's buttocks is designated as the back side. In the thickness direction of the sanitary napkin 10, the side that contacts the wearer's skin is designated as the "skin side," and the opposite side is designated as the "non-skin side."

[0064] The sanitary napkin 10 has an absorbent core (absorbent body) 11 for absorbing excrement, a liquid-permeable top sheet 12 positioned closer to the skin than the absorbent core 11, a liquid-impermeable bottom sheet 13 positioned further away from the skin than the absorbent core 11, and a pair of side sheets 14 extending laterally from the side portion of the top sheet 12 on the skin side. Alternatively, the absorbent core 11 may be covered by a liquid-permeable sheet (not shown) such as tissue paper. The lateral ends of the absorbent core 11 are side ends 11ea and 11eb, respectively.

[0065] In addition, the sanitary napkin 10 has a pair of protective wings 10W extending from the central portion in the longitudinal direction to the outer portion in the transverse direction. The protective wings 10W are formed by a bottom sheet 13 and a side sheet 14.

[0066] like Figure 2 As shown, anti-deviation adhesive portions 15 and 16 are provided on the non-skin side of the sanitary napkin 10. The anti-deviation adhesive portions 15 and 16 are formed by applying an adhesive or the like to the backing sheet 13. The adhesive portion of the anti-deviation adhesive portions 15 and 16 located on the main body of the sanitary napkin 10 is called the central adhesive portion 15, and the adhesive portion of the anti-deviation adhesive portions 15 and 16 located on the wing portion 10W is called the wing adhesive portion 16.

[0067] The central adhesive portion 15 is attached to the skin-friendly side of the user's clothing (underwear) of the sanitary napkin 10. Figure 2 As illustrated in the central adhesive portion 15, a plurality of rectangular adhesive portions, each having a long side in the longitudinal direction, are arranged at intervals in the transverse direction. The wing adhesive portions 16 are adhered to the non-skin-contact side of the user's clothing after the wing portion 10 is folded. Figure 2 The illustrated wing adhesive portion 16 has a rectangular adhesive portion provided in each wing portion 10W.

[0068] The above describes the basic structure of the sanitary napkin 10, but the structure of the sanitary napkin 10 (absorbent article) described above is an example and is not limited thereto. For example, the sanitary napkin 10 may not have the wings 10W. Furthermore, the shape, number, and arrangement of the anti-deviation adhesive parts 15 and 16 are not limited to... Figure 2 The example is shown.

[0069] <<Basic Structure of Packaging 1>>

[0070] Package 20 has a packaging sheet 21 forming the outer side of the package body 1 and a central peel-off sheet 22 covering the central adhesive portion 15 of the sanitary napkin 10 (see reference). Figure 2 The packaging 20 may also include a central peel-off tab 22 or a wing peel-off tab 23 covering the wing adhesive portion 16 of the sanitary napkin 10. Alternatively, the packaging 20 may not have a central peel-off tab 22 or a wing peel-off tab 23; it may simply refer to the packaging sheet 21. For example, the packaging 20 may not have a central peel-off tab 22, and the central adhesive portion 15 of the sanitary napkin 10 may be directly fixed to the packaging sheet 21. In this case, the inner surface of the packaging sheet 21 is provided as a peel-off layer (resin film layer) that allows the sanitary napkin 10 to be easily peeled off.

[0071] The packaging sheet 21 is a rectangular sheet with an inner side for securing the sanitary napkin 10 and an outer side exposed on the outside of the packaging body 1. Examples of packaging sheet 21 include resin film, non-woven fabric, paper, and sheets made by laminating the above materials. In the unfolded state, the sanitary napkin 10 is placed on the inner side of the packaging sheet 21 such that the longitudinal direction of the sanitary napkin 10 is along the longitudinal direction of the packaging sheet 21 and the transverse direction of the sanitary napkin 10 is along the transverse direction of the packaging sheet 21, thereby securing the sanitary napkin 10 to the packaging sheet 21. Furthermore, one side of the packaging sheet 21 in the longitudinal direction corresponds to the front side of the sanitary napkin 10, and the other side of the packaging sheet 21 in the longitudinal direction corresponds to the rear side of the sanitary napkin 10.

[0072] The central peel-off sheet 22 is a rectangular sheet that is fixed to the inner side of the packaging sheet 21 using hot melt adhesive HMA. The wing peel-off sheet 23 is a rectangular sheet that is fixed by wing adhesive portions 16 of a pair of wings 10W. The opposing surfaces of the central peel-off sheet 22 and the wing peel-off sheet 23, which are opposite to the anti-displacement adhesive portions 15, 16, form a peel-off layer (resin film layer) that allows the sanitary napkin 10 to be easily peeled off.

[0073] The central peel-off tab 22, fixed to the packaging sheet 21, is detached from the sanitary napkin 10 together with the packaging sheet 21. The wing peel-off tabs 23, which are not fixed to the packaging sheet 21, are detached from the sanitary napkin 10 separately relative to the packaging sheet 21. However, this is not a limitation; the wing peel-off tabs 23 may also be fixed to the packaging sheet 21. In this embodiment, the central peel-off tab 22 and the wing peel-off tabs 23 are separate sheets, but they may also be a single sheet. Furthermore, in the packaging body 1 of this embodiment, the sanitary napkin 10 is fixed to the packaging sheet 21 via the central peel-off tab 22 by fixing the central adhesive portion 15 of the sanitary napkin 10 to the central peel-off tab 22.

[0074] <<About the Packaging State of the Packaging Body 1>>

[0075] Figure 3This is a top view of the package 1 in its packaged state. "Packaged state" refers to the state in which a sanitary napkin 10, in a folded or rolled-up state, is packaged using the packaging element 20. In this embodiment, the packaged state refers to the following configuration: the sanitary napkin 10, folded and packaged by the packaging element 20, maintains its packaged state by being joined together with the packaging element 20. From... Figure 1 With the unfolded state shown, the sanitary napkin 10 is placed on the inner side of the packaging sheet 21 and folded with its skin side facing upwards via the central peel-off piece 22, thus becoming... Figure 3 The package shown is in its packaged state. (As shown in the image) Figure 3 As shown, the package 1 in its packaged state has a length direction, a width direction orthogonal to the length direction, and a thickness direction orthogonal to both the length and width directions, with the longest length being in the length direction. Furthermore, in this embodiment, the length direction of the package 1 in its packaged state corresponds to the transverse direction of the package 1 in its unfolded state, and the width direction of the package 1 in its packaged state corresponds to the longitudinal direction of the package 1 in its unfolded state. Additionally, in the package 1 in its packaged state, the length of the outer end of the joint 2 in its length direction extends along the width direction of the package 1 in its packaged state. Figure 3 The central CC in the figure indicates the center in the length direction, which is also Figure 1 and Figure 2 The center of the horizontal direction. Additionally... Figure 3 The central XX in the figure indicates the center of the package 1 in the width direction in the packaged state.

[0076] Figure 3 It is package 1 formed by seven folds from package 1 in its unfolded state. Figure 4 This diagram illustrates the opening of the packaging body 1. The packaging sheet 21 of the packaging body 1 has a side end (the edge of the packaging) 21a, where at least a portion of the ends of the packaging sheet 21 are unfolded first when the packaging body 1 is unfolded, and another side end 21b, where at least a portion of the ends of the packaging sheet 21 are unfolded last. In this embodiment, the side end 21a is also the opening end that becomes the starting point when opening. In this embodiment, the side end 21a and the other side end 21b of the packaging sheet 21 are continuous from one side end to the other side end in the length direction of the packaging body 1, and are arranged along the length direction of the packaging body 1, with the side end 21a being approximately parallel to the length direction. Furthermore, the packaging body 1 in this embodiment does not have a strap member for the user to hold when opening, but a strap member may also be provided in the packaging body 1 (packaging 20). When the packaging 20 has a strap member, the opening end 21a becomes the edge of the strap member.

[0077] In the packaging body 1 of this embodiment, at least one of the sanitary napkin 10 and the packaging component 20 is folded back more than four times in the longitudinal direction, and in this embodiment, it is folded back seven times. Figure 5 As shown, the packaging body 1 has multiple folds F1 to F7 along the transverse direction of the sanitary napkin 10. Figure 5 This diagram illustrates the folds F1 to F7 of packaging body 1. Additionally, as... Figure 3 As shown, it has an adhesive portion 3 and a pair of joint portions 2. The packaging body 1 is sealed by the adhesive portion 3 and the pair of joint portions 2, thereby maintaining the hygienic condition of the sanitary napkin 10 inside the packaging sheet 21.

[0078] Each fold F1 to F7 is a region with a predetermined width (a predetermined length in the longitudinal direction when unfolded). Figure 5 The center of the longitudinal direction of the area with a predetermined width is designated as each fold part F1 to F7. Figure 5 The detailed structure of the sanitary napkin 10 and the packaging sheet 21 is omitted from the representation. A wing release tab 23 is fixed to the wing adhesive portion 16, and a pair of wings 10W are folded inward in the lateral direction. In this state, the packaging sheet 21 and the sanitary napkin 10 are folded a predetermined number of times. Furthermore, Figure 5 The sanitary napkin 10 shown has its lateral ends, i.e., side ends 10ea and 10eb, folded inwards in the lateral direction with the wing portion 10W folded back. Figure 3 The sanitary napkin 10 in the package 1 shown in the packaged state has one end 10ea and the other end 10eb along its length. Additionally, Figure 1 The transverse ends, i.e., the side ends 11ea and 11eb, of the absorbent core 11 of the sanitary napkin 10 in its unfolded state are shown. Figure 3 The sanitary napkin 1 in the package 1 shown in the package state has one end 11ea and the other end 11eb along its length.

[0079] Adhesive part 3 is bonded using a hot melt adhesive or other adhesive 3h (see reference). Figure 8 The portion of the packaging sheet 21 that bonds adjacent portions of the packaging sheet 21 in the thickness direction to each other is provided at one end 21a of the packaging sheet 21.

[0080] The joint 2 is a joint where the packaging sheets 21 are sealed together by compression (e.g., heat fusion, ultrasonic welding, etc.), adhesive, etc. Figure 3The joint portion 2 is indicated by a cross-shaped shading. The joint portion 2 is a generally rectangular region located at both ends in the length direction and extending along the width direction. In this embodiment, the joint portion 2 is provided with multiple rectangular weld portions (press portions). Furthermore, the joint portion 2 located on one side in the length direction is referred to as the one-side joint portion 2a, and the joint portion 2 located on the other side in the length direction is referred to as the other-side joint portion 2b. In this embodiment, the one-side joint portion 2a and the other-side joint portion 2b of the packaging body 1 are respectively located at the center in the thickness direction, and the one-side joint portion 2a and the other-side joint portion 2b are located at approximately the same position in the thickness direction.

[0081] Furthermore, for a package 1 with multiple folds F, not all of its folds F are formed as creases on the sanitary napkin 10 or the packaging sheet 21. For example, it may be that the crease of the first fold F1 formed by the first fold from the unfolded state leaves a deeper mark than that of the seventh fold F7 formed by the last fold. Regarding the package 1 in its packaged state, when viewed along its length, the radius R of the outer contour is larger than the radius R of the inner contour, thus making it less likely for folds F to remain. In other words, for a package 1 with multiple folds F in its packaged state, the folds F located further in the thickness direction tend to have deeper creases, while the folds F located further out in the thickness direction tend to have shallower creases.

[0082] <<Unfolding of Package 1 in its packaged state>>

[0083] Figures 6A to 6D and Figures 7A to 7C This is a schematic diagram used to illustrate the unfolding of the packaging body 1, omitting the detailed structure of the sanitary napkin 10 and the packaging component 20. Figure 8 yes Figure 3 The sectional view along direction AA shows a section at the center CC along the length direction of package 1. Figure 8 YY represents the position corresponding to the joint 2 in the thickness direction. An example of the unfolding method of the package 1 in its packaged state will be described below, but it is not necessarily limited to this. Furthermore, although the case of opening and unfolding the package 1 by the wearer of the sanitary napkin 10 will be described, the opening and unfolding of the package 1 is not limited to the wearer of the sanitary napkin 10, but can also be performed by a person who puts the sanitary napkin 10 or other absorbent articles on the wearer.

[0084] In order to unfold the package 1 (in its packaged state) Figure 3 , Figure 6A First, for example, such as Figure 4As shown, the wearer of the sanitary napkin 10 can open the package by pinching one end 21a of the packaging sheet 21 of the package 1 with the right hand while supporting the package 1 with the left hand.

[0085] Furthermore, preferably, such as Figure 3 As shown, the packaging sheet 21 of the packaging body 1 is provided with markings MC and ML indicating the position of one end 21a, which is the opening end. The marking MC indicates the opening position of the packaging sheet 21 by coloring the end of the packaging sheet 21, including one end 21a, with a different color than the other end. The marking MC is continuously provided between the two ends of the packaging sheet 21 in the length direction. The marking ML indicates the position of the packaging sheet 21 that is suitable for opening first. Specifically, the marking ML is a marking that shows the word "open" and a downward-pointing triangle pattern "▼" indicating one end 21a. By providing such markings MC and ML, the wearer can easily identify the position of the edge (one end 21a) of the packaging sheet 21 that is to be opened first when unfolding the packaging body 1, thereby making it easier to unfold the packaging body 1. In addition, the markings MC and ML can also be markings printed with ink or the like on the inner or outer surface of the packaging sheet 21, or markings that are attached to the packaging sheet 21 as separate components.

[0086] When from Figure 6A When the packaging sheet 21 is pinched at one end 21a and unfolded from the seventh fold F7 as shown in the packaging state, (when from...) Figure 6A When the lower side of the middle extends upwards, it becomes Figure 6B The state shown. At this time, as the area from one side end 21a to the 7th fold F7 in the packaging sheet 21, that is, the portion of the one-side packaging section 21sa located on the outermost side of the packaging body 1, is pulled apart from the adjacent one-side packaging section 21ta, the joint between the one-side packaging section 21sa and the adjacent one-side packaging section 21ta at the joint 2 is peeled off, and the adjacent one-side packaging section 21ta becomes adjacent to the one-side packaging section 21sa from the other side in the thickness direction. Furthermore, since the joint 2 in this embodiment is formed by welding, it becomes such that only the joint between the one-side packaging section 21sa and the adjacent one-side packaging section 21ta is peeled off, while the remaining portions of the packaging sheet 21 at the joint 2 are maintained in their joint with each other.

[0087] Next, when from Figure 6B When the sanitary napkin 10 and the packaging sheet 21 are unfolded starting from the 6th fold F6, as shown, they become... Figure 6C The state shown. Figure 6CThe state shown represents the following state: with one end 21a of the unfolded packaging sheet 21 fixed, the sanitary napkin 10 and the packaging sheet 21 are unfolded starting from the sixth fold F6. Figure 6B (The upper side of the packaging sheet 21 is unfolded towards the lower side). Then, along with the unfolding, at the joint 2, the adjacent portions of the packaging sheet 21 in the thickness direction are peeled off one another in sequence.

[0088] Similarly, when from Figure 6C When the sanitary napkin 10 and the packaging sheet 21 are unfolded starting from the 5th fold F5, as shown in the diagram, they become... Figure 6D The state shown. When from Figure 6D When the sanitary napkin 10 and the packaging sheet 21 are unfolded starting from the fourth fold F4, as shown in the diagram, they become... Figure 7A The state shown. When from Figure 7A When the sanitary napkin 10 and the packaging sheet 21 are unfolded starting from the third fold F3, as shown in the diagram, they become... Figure 7B The state shown. When from Figure 7B When the sanitary napkin 10 and the packaging sheet 21 are unfolded starting from the second fold F2, as shown in the diagram, they become... Figure 7C The state shown. When from Figure 7C When the sanitary napkin 10 and the packaging sheet 21 are unfolded with the first fold F1 as the starting point, the state shown becomes Figure 5 The state shown.

[0089] Furthermore, in the packaging body 1 of this embodiment, since the portion stacked in the thickness direction starting from the first fold F1 is further folded back, second folds F2a, F2b, third folds F3a, F3b, and fourth folds F4a, F4b are formed. Specifically, in the packaging body 1, the second fold F2 is formed such that the outer surfaces of the packaging sheet 21 folded back at the first fold F1 face each other. Therefore, in the unfolded state of the packaging body 1 (refer to...), Figure 5 In this package 1, a second fold F2a, a third fold F3a, and a fourth fold F4a are formed on the side further longitudinally than the first fold F1, and a second fold F2b, a third fold F3b, and a fourth fold F4b are also formed on the other side further longitudinally than the first fold F1. Because the package 1 with these folds F is folded compactly and with fewer folds, it is easier to open the package 1 as it requires fewer unfoldings when opened by the wearer.

[0090] In this embodiment, the package 1 is formed by further folding back the portion that is stacked in the thickness direction starting from the first fold F1, but it is not limited to this. For example, it may also be a structure in which the fold width of the portion folded starting from the first fold F1 is reduced, and the already folded portion is not further folded back. Alternatively, it may be a structure in which the fold F is not formed. For example, it may be a structure in which the sanitary napkin 10 and the packaging sheet 21 are rolled up in the longitudinal direction of the sanitary napkin 10 (packaging sheet 21).

[0091] <<Ease of unfolding packaging 1>>

[0092] Regarding the packaging body 1, the sanitary napkin 10 is folded back four or more times. In order to maintain the compact shape formed by the folding, a strong tension is applied to the packaging sheet 21 to prevent the sanitary napkin 10 from expanding. When the packaging body 1 is viewed along its length, the point furthest from the joint in the central outline of the packaging body 1 along its length, i.e., the vertex, is the state where the packaging sheet 21 is subjected to the maximum tension. Therefore, when one end 21a, which is the opening end of the packaging sheet 21, is located at the vertex, there is a risk that the wearer will have difficulty pinching the end on the side of one end 21a. In particular, since the packaging sheet 21 is made of relatively thin raw materials such as resin film, non-woven fabric, paper, and sheets made by laminating the above materials, it is easy for it to become attached to the adjacent parts of the packaging sheet 21 in the thickness direction due to the strong tension.

[0093] In response to this, such as Figure 8 As shown, regarding the packaging body 1, at the center CC of the length direction of the packaging body 1, the length T in the thickness direction is different from the length W in the width direction. Half of the length W in the width direction (1 / 2W) is shorter than the length T in the thickness direction (1 / 2W < T). Therefore, compared with the case where the length T in the thickness direction and the length W in the width direction are the same at the center CC of the length direction of the packaging body 1, it is well housed in a ring shape formed by the wearer's fingers, making it easy for the wearer to hold. Furthermore, when the packaging body 1 is viewed from the end side in the length direction inward, at least a portion of one side end 21a of the packaging sheet 21 is located at a position different from one side vertex Za, thereby making it easy to pinch the end of one side end 21a of the packaging sheet 21.

[0094] One-sided vertex Za is the point in the outline of the package 1 located at the center CC in the length direction when viewed from the end side inwards in the length direction, which is furthest from the joint 2. Hereinafter, in the thickness direction of the package 1 in the packaged state, relative to the joint 2, the side where one-sided vertex Za is located is referred to as one side, and the side opposite to one-sided vertex Za is referred to as the other side. Furthermore, in this embodiment, as... Figure 8As shown, one vertex Za is positioned on one side of the joint 2 in the thickness direction, and one end 21a, which serves as the opening end of the packaging sheet 21, is positioned on one side of the joint 2 in the thickness direction, but this is not limited to this. Alternatively, the one end 21a, which serves as the opening end of the packaging sheet 21, may be positioned on the other side of the joint 2 in the thickness direction, relative to the one vertex Za positioned on one side in the thickness direction. It is also possible that one end 21a may be positioned at a position overlapping the joint 2 in the thickness direction. Furthermore, as... Figure 8 As shown, in this embodiment, the joint portion 2 (YY) is located at the center in the thickness direction, but it is not limited to this. Alternatively, the joint portion 2 may be located on one side or the other side of the center in the thickness direction.

[0095] One vertex Za in the packaging sheet 21 is formed by the joints 2 at both ends in the length direction, the multiple folds of the sanitary napkin 10, and the thickness of the packaging 20, which forcefully pull the packaging sheet 21 in both the length and thickness directions. Therefore, this one vertex Za becomes the part of the packaging sheet 21 under relatively strong tension.

[0096] For a package 1 that is folded (rolled up) into a compact shape, even if strong tension is applied to the position of one vertex Za of the package piece 21, by setting at least a portion of one end 21a of the package piece 21, which is the opening end, in a position with relaxed tension compared to the position of one vertex Za, the adhesion between the ends of the package piece 21 on the side of one end 21a is reduced compared to the portion where one end 21a is located at the position of one vertex Za. This makes it easier for the wearer to pinch the end of the package piece 21, including one end 21a. As a result, it is easier to perform operations such as... Figure 4 The operation involves pinching the end of the packaging sheet 21 and opening the pinched part to unfold it.

[0097] In addition, when the five fingers are bent inward to form a clenched fist, the inner ring shape formed by the fingers is not a perfect circle, but a curved shape that is close to an ellipse. Figure 9 This diagram illustrates the state of holding package 1. If the length T in the thickness direction and the length W in the width direction are different in the cross-section at the center CC of the length direction of package 1, then as shown... Figure 9When holding the package 1 as shown, it is easier to store inside the ring formed by the fingers compared to holding a cylindrical package with a perfectly circular cross-section, thus making it easier to grip. Furthermore, when holding the package 1, the contact area between the fingers / palm and the outer surface of the package 1 increases, thereby reducing the risk of the package 1 slipping from the hand. Moreover, compared to a package with a perfectly circular cross-section at the center CC along the length direction, the risk of the package 1 rolling when placed on a flat surface is reduced, thus reducing the risk of the package 1 falling onto the floor of a bathroom or similar space, thereby making it easier to keep the absorbent 11 and the sanitary napkin 10 stored inside hygienic.

[0098] Furthermore, preferably, at the center CC of the package body 1 in the length direction, the length W in the width direction is longer than the length T in the thickness direction. For example... Figure 9 As shown, for such a packaging body 1, the portion of the packaging body 1 that is longer in the thickness direction than in the width direction easily follows the palm, and the portion of the packaging body 1 that is shorter in the width direction than in the thickness direction easily follows the curved loop shape formed by the fingers. Therefore, it is easy to grip and not easy to drop from the gripped state. In addition, since it is easy to grip from the easy-grip state... Figure 4 The unfolding action shown allows for easy unfolding.

[0099] Furthermore, it is preferable that the length T in the thickness direction of the packaging body 1 is 10mm to 50mm. According to the academic paper "The Relationship between the Sensitive Evaluation of the Ease of Grip When Holding a Cylindrical Object and the Arch of the Palm" (Proceedings of the Japanese Society of Mechanical Engineers, Vol. 66, No. 641 (2000-1), Takao Yataka, Keijiro Yamamoto, and Kenichi Hori), the contact ball radius R of an easy-to-grip object was investigated in 20 test subjects aged 20 to 24 regarding the arch formed between the thumb and index finger in the hand's arch. The results showed that a contact ball radius R of 15mm to 40mm resulted in proper contact with the hand and easy storage in the palm. In other words, if the length T in the thickness direction of the packaging body 1 is shorter than 10mm, the packaging body 1 is prone to slipping from the palm. On the other hand, if the length in the thickness direction of the packaging body 1 is greater than 50mm, it is difficult to grip the packaging body 1 because it is larger than the diameter of the circle formed by the thumb and index finger of a Japanese woman's hand. Therefore, by making the length of the packaging body 1 in the thickness direction 10mm to 50mm, it is neither too small nor too large for the hands of Japanese women, reducing the risk of slipping and making it easy to store in the palm of the hand, thus forming a packaging body 1 that is easy to pinch and easy to hold.

[0100] The length in the thickness direction and the length in the width direction of the packaging body 1 can be measured using known methods. For example, the lengths of the target area (at the center CC in the length direction) can be measured using a pointer-type thickness gauge ID-C1012C manufactured by Mitutoyo Co., Ltd., or an equivalent instrument, for example, at 3.0 gf / cm. 2 The values ​​measured under pressure are set as the length in the thickness direction and the length in the width direction.

[0101] As described above, at the center CC of the packaging body 1 in the length direction when viewed from the end side in the length direction, there is a side vertex Za located on one side in the thickness direction, and another side vertex Zb, which is the point furthest from the joint 2 on the other side in the thickness direction. Preferably, when viewed from the end side in the length direction, at least partially, one side end 21a of the packaging sheet 21 is located at a position different from the other side vertex Zb. In this embodiment, one side vertex Za and the other side vertex Zb are located near the center in the width direction of the packaging body 1 in the packaging state (a position closer to one side end 21a of the packaging sheet 21 in the width direction than the center XX), but are not limited to this. One side vertex Za and the other side vertex Zb can be located at any position in the width direction of the packaging body 1, for example, either at the center XX in the width direction or on the opposite side of one side end 21a of the packaging sheet 21 than the center XX in the width direction.

[0102] Regarding the packaging sheet 21 of the package body 1 in its packaged state, it is easy to achieve a state where, although the tension is not as strong as that applied to one vertex Za, a relatively strong tension is applied to the other vertex Zb. Therefore, by having at least a partial portion of the packaging sheet 21 having one end 21a located at a different position from the other vertex Zb, the wearer can easily pinch the portion of the packaging sheet 21 with less tension compared to the portion overlapping one end 21a and the other vertex Zb. This facilitates the unfolding of the package body 1 in its packaged state.

[0103] The vertex Za on one side and the vertex Zb on the other side of the package 1 in its packaged state can be determined, for example, by the following method. Furthermore, in this embodiment, the direction along one side of the joint 2a is set as the width direction, but the direction along the other side of the joint 2b can also be set as the width direction.

[0104] With the package 1 in its packaged state, held by one side joint 2a along its length and suspended vertically, when viewing the package 1 from the other side joint 2b towards one side joint 2a along its length, the point at the center CC along the length that is furthest from the one side joint 2a in the thickness direction orthogonal to the direction along the one side joint 2a is defined as the side vertex Za. Furthermore, the point at the center CC along the length that is furthest from the one side joint 2a in the thickness direction opposite to the side vertex Za can be defined as the other side vertex Zb.

[0105] Furthermore, since the packaging body 1 is soft, in order to more accurately determine the vertex Za on one side and the vertex Zb on the other side, it is also possible to cut the packaging body 1 at the center CC in the length direction after freezing the packaging body 1 in the packaged state using liquid nitrogen or the like, and determine the point on one side of the cut surface of the packaging body 1 that is farthest from the one side joint 2a in the thickness direction orthogonal to the direction along the one side joint 2a as the vertex Za on one side, and determine the point on the side opposite to the one side vertex Za in the thickness direction that is farthest from the one side joint 2a as the vertex Zb on the other side.

[0106] Furthermore, the preferred option is, such as Figure 8 As shown, one end 21a is configured such that when the package 1 is viewed from the end side in the length direction towards the inside, and the package 1 is unfolded with one end 21a positioned on one side of the joint 2 in the thickness direction, the portion of the packaging sheet 21 at one side vertex Za unfolds before the portion of the packaging sheet 21 at the other side vertex Zb. Simply put, when one side vertex Za and one end 21a of the packaging sheet 21 are positioned on one side of the joint 2 in the thickness direction, one end 21a (one side packaging portion 21sa) spans one side vertex Za.

[0107] Specifically, the outermost packaging portion 21sa of the portion of the packaging sheet 21 located on one side in the thickness direction is configured to cross the side vertex Za and the central XX in the width direction. Therefore, the end 21a of the packaging sheet 21, which crosses the side vertex Za where a stronger tension is applied, is more likely to be in a state where the tension applied to the packaging sheet 21 is less than that of the portion at the side vertex Za. Thus, it is easier to pinch the end of the packaging sheet 21, including the end 21a, in the packaged state, making it easier to unfold the package 1. Furthermore, when viewing the package 1 from the end side in the length direction, if the length in the width direction is longer than the length in the thickness direction, and the end 21a (one-sided packaging portion 21sa) of the packaging sheet 21 crosses the side vertex Za, when the packaging sheet 21 is opened by pinching the end including the end 21a, the undulation in the area beyond the side vertex Za is smaller, making it easier to open and unfold with less force.

[0108] Alternatively, one side end 21a can be configured as follows (not shown): when viewing the package 1 in its packaged state from the end side in the length direction, when the package 1 is unfolded with one side end 21a positioned on one side of the joint 2 in the thickness direction, the portion of the packaging sheet 21 at the other side vertex Zb unfolds before the portion of the packaging sheet 21 at one side vertex Za. Simply put, when one side vertex Za and one side end 21a of the packaging sheet 21 are positioned on one side of the joint 2 in the thickness direction, one side end 21a (one side packaging portion 21sa) does not cross one side vertex Za.

[0109] Specifically, the outermost packaging portion 21sa of the portion of the packaging sheet 21 located on one side in the thickness direction is positioned so as not to cross the side vertex Za and not to cross the center XX in the width direction. This allows the end of the packaging sheet 21, including the side end 21a, located at a position different from the side vertex Za to be easily pinched. Furthermore, by positioning the side end 21a (side packaging portion 21sa) of the packaging sheet 21 at a position that does not cross the center XX in the width direction, the side end 21a easily follows the contour of the packaging body 1. This reduces the risk of the packaging sheet 21 being unfolded against the wearer's will and makes it easier to maintain the packaged state of the packaging body 1. Furthermore, when viewing the package 1 from the end side in the length direction inward, if the length in the width direction is shorter than the length in the thickness direction, and if one end 21a (one side packaging part 21sa) of the packaging sheet 21 does not cross the one side vertex Za, then when the packaging sheet 21 is opened by pinching the end including the one side end 21a, the packaging sheet 21 is pulled and unfolded in the thickness direction along the direction from the top Za side to the top Zb side. Therefore, compared with the case where the length in the width direction is longer than the length in the thickness direction, the inclination when peeling off the packaging sheet 21 is steeper, making it easier to open and unfold with less force.

[0110] An adhesive portion 3 is provided at one end 21a of the packaging sheet 21, which is used to bond the packaging sheets 21 together with adhesive 3h. In this embodiment, the adhesive portion 3 is rectangular in shape along the length direction of one end 21a. By having the adhesive portion 3, it is easier to maintain the packaged state of the packaging body 1, and the risk of dust or the like getting into the inside of the packaging body 1 can be reduced. Furthermore, it is preferable to have a non-adhesive portion 9 adjacent to the adhesive portion 3 in a direction intersecting the direction (length direction) along one end 21a. The non-adhesive portion 9 is a so-called dry edge, which is a portion of the packaging sheet 21 where adjacent parts in the thickness direction are not bonded to each other. In this embodiment, the non-adhesive portion 9 is a region including one end 21a and has a predetermined width along one end 21a. By having the non-adhesive portion 9, it is easier to pinch the end of the packaging sheet 21 including one end 21a when unfolding the packaged body 1 in its packaged state.

[0111] Furthermore, more preferably, when observing the package body 1 after it has been packaged with a packaging sheet 21 having an adhesive portion 3 and a non-adhesive portion 9 adjacent to the adhesive portion 3 from one end 21a side in the longitudinal direction, at least a portion of the adhesive portion 3 is located at a position different from one side vertex Za. In this embodiment, the entire area of ​​the adhesive portion 3 is located at a position different from one side vertex Za. Since one side vertex Za in the packaging sheet 21 is the part under strong tension, by providing the adhesive portion 3 at a position different from one side vertex Za, the risk of applying excessive tension to the adhesive portion 3 is reduced, and the packaging sheets 21 can be more reliably bonded together. As a result, the risk of foreign matter such as dust getting into the inside of the package body 1 is easily reduced, and the packaged state of the package body 1 is easily maintained.

[0112] In addition, the markings MC and ML indicating the opening position of the packaging sheet 21 can be provided on the non-adhesive part 9 of the packaging sheet 21, or on the adhesive part 3, or even provided on both the non-adhesive part 9 and the adhesive part 3.

[0113] like Figure 3 As shown, in the longitudinal direction, one end 10ea of ​​the sanitary napkin 10 and one end 11ea of ​​the absorbent core 11 are provided between the central CC and one side joint 2a in the longitudinal direction, and the other end 10eb of the sanitary napkin 10 and the other end 11eb of the absorbent core 11 are provided between the central CC and the other side joint 2b in the longitudinal direction. For the package body 1 in its packaged state, it is preferable that the number of pleats per unit area between the one side joint 2a and one end 11ea of ​​the absorbent core 11 in the longitudinal direction is greater than the number of pleats per unit area in the region from one end 11ea to the other end 11eb in the longitudinal direction. Similarly, for the package body 1 in its packaged state, it is preferable that the number of pleats per unit area between the other side joint 2b and the other end 11eb of the absorbent core 11 in the longitudinal direction is greater than the number of pleats per unit area in the region from one end 11ea to the other end 11eb in the longitudinal direction. The number of pleats in each region can be determined visually.

[0114] The portion where the absorbent 11 is located (the area along the length from one end 11ea to the other end 11eb of the absorbent 11) is also a thick and rigid portion within the packaging body 1. Therefore, it applies stronger tension to the packaging sheet 21 compared to the area between the one-sided joint 2a and one end 11ea of ​​the absorbent 11 along the length, and between the other-sided joint 2b and the other end 11eb of the absorbent 11 along the length. Consequently, by reducing the number of folds in the packaging sheet 21 where the absorbent 11 is located, the feel of the area along the length from one end 11ea to the other end 11eb of the absorbent 11 is improved for the wearer, making it easier to grip. On the other hand, by making the folds between the one side joint 2a and the one side end 11ea of ​​the absorber 11 in the length direction and between the other side joint 2b and the other side end 11eb of the absorber 11 in the length direction more than the folds in the area from the one side end 11ea to the other side end 11eb in the length direction, the risk of the package 1 slipping from the palm of the wearer when held can be reduced.

[0115] Furthermore, as described above, the sanitary napkin 10 of the packaging body 1 is in the state after the wings 10W are folded inward in the lateral direction (refer to...). Figure 5 The packaging sheet 21 is folded back multiple times in the longitudinal direction. In the packaged state, the absorbent core 11 has two ends (one end 11ea, the other end 11eb) located outside the center CC in the length direction of the package body 1. Preferably, in such a packaged state of the sanitary napkin 10, the length W (refer to the width direction) between the two ends of the absorbent core 11 in the length direction (between one end 11ea and the other end 11eb) is greater than the length W at the center CC in the length direction. Figure 8 The wider portion of the packaging sheet 21 has a folded protective wing portion 10W, and preferably, at least a portion of the folded protective wing portion 10W is provided in a folded protective wing portion, and at least a portion of the opening end 21a of the packaging sheet 21 is provided in a position different from the wider portion.

[0116] Regarding the portion of the packaging body 1 that includes the wing portion 10W and the wing adhesive portion 16, since the sanitary napkin 10 and the packaging components 20 (packaging sheet 21, peel-off sheets 22, 23) are stacked, this stacked portion, being a wider portion, has increased thickness due to the greater material overlap. Therefore, the wider portion of the packaging sheet 21 becomes the portion subjected to tension stronger than the central CC in the length direction. Thus, by positioning at least a portion of the side end 21a of the packaging body 1, which serves as the opening end of the packaging sheet 21, at a position different not only from the side vertex Za but also from the wider portion, it is easy to pinch the end of the side end 21a of the packaging sheet 21, which has less tension compared to the side vertex Za and the wider portion, thereby facilitating the easy unfolding of the packaging body 1.

[0117] like Figure 8 As shown, in the package body 1 in the packaged state, in the thickness direction, a side vertex Za is provided at a position closer to the joint 2, and a side packaging portion 21sa is located at the outermost position of the packaging sheet 21 at a position closer to the joint 2, and a side adjacent packaging portion 21ta is adjacent to the side packaging portion 21sa from the other side of the thickness direction of the side packaging portion 21sa. Similarly, in the package body 1, in the thickness direction, a side vertex Zb is provided at a position further away from the joint 2, and a side packaging portion 21sb is located at the outermost position of the packaging sheet 21 at a position further away from the joint 2, and a side adjacent packaging portion 21tb is adjacent to the other side packaging portion 21sb from the other side of the thickness direction of the other side packaging portion 21sb.

[0118] In the joint 2 at both ends of the package 1 in its packaged state, at least a portion of one side of the packaging portion 21sa is joined to at least a portion of the adjacent packaging portion 21ta on one side. Similarly, in the joint 2, at least a portion of the other side of the packaging portion 21sb is joined to at least a portion of the adjacent packaging portion 21tb on the other side. Furthermore, in this embodiment, one side of the packaging portion 21sa, one side of the adjacent packaging portion 21ta, one side of the packaging portion 21sb, and one side of the adjacent packaging portion 21tb overlap in the thickness direction, and are joined by welding in the thickness direction while overlapping. In addition, the joint 2 in this embodiment is formed by an assembly of multiple welded portions arranged in an arbitrary pattern. As for the welded portions of the joint 2, for example, multiple circular welded portions may be arranged in an alternating pattern.

[0119] Preferably, when one end 21a, which serves as the opening end of the packaging body 1, is positioned further to the side than the joint 2 in the thickness direction, the force required to peel off the joint between one side packaging portion 21sa and the adjacent one side packaging portion 21ta at the joint 2 is greater than the force required to peel off the joint between the other side packaging portion 21sb and the other side adjacent packaging portion 21tb. The peeling of the joint between one side packaging portion 21sa and the adjacent one side packaging portion 21ta is the first part to peel off when the packaging body 1 is unfolded. Figure 6A The state shown becomes Figure 6B The state shown. The peeling of the joint between the other packaging section 21sb and the adjacent packaging section 21tb on the other side is the second peeling after the peeling of the first joint, from Figure 6B The state shown becomes Figure 6C The state shown. Therefore, by making the force of the first peel joint greater than the force of the second peel joint, the risk of the package 1 being accidentally unfolded in the packaged state can be reduced, and the packaged state can be easily maintained. Furthermore, if the peeling of the joint between one side of the packaging section 21sa and the adjacent side of the packaging section 21ta has already been performed, the subsequent peeling of the joint between one side of the packaging section 21sa and the adjacent side of the packaging section 21ta can be performed with a smaller force than the first peeling, thus making it easier to unfold the package 1.

[0120] Alternatively, if the opening end 21a of the packaging body 1 is positioned further to one side than the joint 2 in the thickness direction, the force required to peel off the joint between one side packaging portion 21sa and the adjacent packaging portion 21ta at the joint 2 is smaller than the force required to peel off the joint between the other side packaging portion 21sb and the adjacent packaging portion 21tb. Compared to the case where the force required to peel off the joint between one side packaging portion 21sa and the adjacent packaging portion 21ta first when unfolding the packaging body 1 is greater than the force required to peel off the joint between one side packaging portion 21sa and the adjacent packaging portion 21ta next, a smaller force can be used for the initial unfolding, thus making it easier to begin unfolding the packaging body 1.

[0121] Furthermore, "the magnitude of the force that peels the joint" refers to both peel strength and joint strength. The method for measuring the peel strength at each joint can be performed using known methods. For example, the portion of the packaging part 21sa on one side of the joint 2 of the packaging body 1 that is joined (welded) to an adjacent packaging part 21ta on the other side is cut to a predetermined size (5 mm in width) to create a sample piece for one side. Similarly, the portion of the packaging part 21sb on the other side of the joint 2 of the packaging body 1 that is joined (welded) to an adjacent packaging part 21tb on the other side is cut to a predetermined size (5 mm in width) to create a sample piece for the other side. The weld pattern (area of ​​welded portion per unit area) is confirmed to be the same in both the sample pieces. Then, for each sample piece, a strip is attached to the ends of both sides of each packaging part to create a pair of gripping portions. The pair of gripping portions are clamped onto the chucks of a tensile testing machine. Then, the load of the tensile testing machine is zeroed, and the measurement begins. The chuck distance is set to 10 mm, the tensile speed is set to 100 mm / min, and the maximum load is read. The measurement was performed multiple times (N=10), and the average value of the maximum load was calculated. The calculated maximum load can be converted into a load per unit width (N / 25mm), and the resulting value can be used as the magnitude of the peel force (peel strength) for comparison. Furthermore, measurements can be performed under specific environmental conditions (e.g., temperature 20℃ (±2℃), humidity 60% (±5%)) with the sample sheet at a stable temperature.

[0122] The embodiments of the present invention have been described above. However, these embodiments are provided to facilitate understanding of the invention and are not intended to limit the scope of the invention. Furthermore, it is self-evident that the present invention can be modified and improved without departing from its spirit, and that its equivalents are included in the present invention.

[0123] In the above embodiments, one end 21a of the packaging sheet 21 is continuous between the two ends in the length direction and is arranged along the length direction, but is not limited thereto. Figure 10 This figure illustrates another embodiment of the packaging body 100. Regarding the packaging body 100, the description will primarily focus on the parts that differ from the embodiments described above. For parts whose structure is common to the embodiments described above, the reference numerals will be the same, and detailed descriptions of the basic structure will be omitted.

[0124] Regarding the package 100 in its packaged state, when viewed along the thickness direction, one end 21a of the packaging sheet 21 has a predetermined length, specifically, as shown below. Figure 10As shown, one end 21a is continuous from one end to the other in the length direction. Furthermore, when viewed along the thickness direction, one end 21a of the packaging 100 is tilted at a predetermined angle relative to the length direction. In such a packaging sheet 21, when the packaging 1 is viewed from the end side in the length direction towards the inside, at least a portion of one end 21a is positioned differently from the side vertex Za where the tension is applied more strongly. Therefore, the wearer can easily pinch the end of one end 21a of the packaging sheet 21 in the part where the tension is less than that of the side vertex Za, thereby facilitating the unfolding of the packaging 1.

[0125] Furthermore, the preferred option is, such as Figure 10 As shown, when the package 100 is viewed from the end side in the longitudinal direction, in the case of a portion that aligns with a side vertex Za, one end 21a of the packaging sheet 21 also has a portion that does not align with a side vertex Za. When the package 100 is viewed from the end side in the longitudinal direction, even though one end 21a of the packaging sheet 21 has a portion that aligns with a side vertex Za, the fact that one end 21a does not align with a side vertex Za makes it easier for the wearer to pinch the end of the packaging sheet 21 with one end 21a at a portion where the tension of the packaging sheet 21 is weaker than at the side top Za, thereby facilitating the subsequent unfolding of the package 100.

[0126] Alternatively, if one end 21a is inclined relative to the length direction, when viewing the package 100 in its packaged state from the end side in the length direction, one end 21a of the packaging sheet 21 may not necessarily have a portion aligned with one side vertex Za. In the case where the portion where one end 21a of the packaging sheet 21 is not aligned with one side vertex Za when viewed from the end side in the length direction, one end 21a can be provided more reliably at the portion of the packaging sheet 21 where the tension is looser than at one side vertex Za. Therefore, it is easier for the wearer to pinch the end of the packaging sheet 21 with one end 21a, thereby facilitating the unfolding of the package 100.

[0127] The packaging bodies 1 and 100 described above can also have a structure with a strap member (not shown) for the wearer to hold when opening. For example, the packaging 20 may have a strap member and a packaging sheet 21 as a film member covering the sanitary napkin 10. The packaging sheet 21 of the film member has an outer film end located along the length direction and at the outermost side of the packaging body 1 and 100. The strap member is peelably attached to the adjacent portions of the packaging sheet 21 in the thickness direction across the edge of the outer film end. In this case, the edge of the side of the strap member that is first unfolded is the edge of the packaging body 20 that serves as the opening end of the packaging body 20 (corresponding to one side end 21a of the packaging body 1 and 100). The strap member makes it easy for the wearer to identify the first part of the packaging body 1 and 100 to unfold.

[0128] Explanation of reference numerals in the attached figures

[0129] 1. 100. Packaging body (absorbent packaging); 2. Joint; 2a. One-sided joint; 2b. The other-sided joint; 3. Adhesive part; 3h. Adhesive; 9. Non-adhesive part; 10. Sanitary napkin (absorbent); 10W. Wings; 11. Absorbent core (absorbent body); 12. Top sheet; 13. Bottom sheet; 14. Side sheet; 20. Package; 21. Packaging sheet (package); 21a. Opening end (edge ​​of package); 21sa. One-sided packaging part; 21ta. One-sided adjacent packaging part; 21sb. The other-sided packaging part; 21tb. The other-sided adjacent packaging part; F1~F7. Folding part; MC, ML. Marking; Za. One-sided vertex (vertex); Zb. The other-sided vertex.

Claims

1. An absorbent article packaging body comprising: an absorbent article; and a packaging component for packaging the absorbent article, characterized in that, The absorbent article is folded multiple times or rolled into a roll while placed on the inside of the package. The absorbent packaging body has intersecting length, width, and thickness directions. The ends along the length direction have a joint along the width direction, where the packages are joined together. When the absorbent article packaging is unfolded, at least a portion of the edges of the packaging are unfolded first. At the center of the length direction, The length in the thickness direction is different from the length in the width direction. Half of the length in the width direction is shorter than the length in the thickness direction. When viewed from the end side inward along the length direction When the point furthest from the joint in the thickness direction in the outline of the absorbent article packaging is taken as the vertex, At least a portion of the edge of the package is located at a position different from the vertex. The absorbent article has an absorbent body for absorbing liquid and protective wings that extend laterally in the deployed state. The absorbent material is folded multiple times or rolled into a roll after the protective wings are folded inward in the lateral direction. The absorber is provided at both ends at positions outside the center of the length direction. Between the two ends of the absorber, there is a wider portion that is longer in the width direction than the length at the center in the length direction. At least a portion of the wider portion is provided with the protective wing portion. At least a portion of the edge of the package is located at a position different from the larger portion of the width.

2. The absorbent article packaging body according to claim 1, characterized in that, The vertex is the vertex on one side of the thickness direction that is furthest from the joint. When the point furthest from the joint on the other side of the thickness direction is taken as the vertex on the other side... When viewed from the end side inward along the length direction, at least a portion of the edge of the package is located at a position different from the vertex of the other side.

3. The absorbent article packaging body according to claim 1 or 2, characterized in that, The vertex is the vertex on one side of the thickness direction that is furthest from the joint. When the point furthest from the joint on the other side of the thickness direction is taken as the vertex on the other side... When viewed from the end side inward along the length direction The edge of the package is located on one side of the joint in the thickness direction. When the absorbent article packaging is unfolded, the portion of the packaging at one vertex is unfolded before the portion of the packaging at the other vertex.

4. The absorbent article packaging body according to claim 1 or 2, characterized in that, The vertex is the vertex on one side of the thickness direction that is furthest from the joint. When the point furthest from the joint on the other side of the thickness direction is taken as the vertex on the other side... When viewed from the end side inward along the length direction The edge of the package is located on one side of the joint in the thickness direction. When the absorbent article packaging is unfolded, the portion of the packaging at the other side vertex is unfolded before the portion of the packaging at the one side vertex.

5. The absorbent article packaging body according to claim 1, characterized in that, When viewed along the thickness direction The edges of the package have a predetermined length. The edge of the package is inclined relative to the length direction.

6. The absorbent article packaging body according to claim 5, characterized in that, When viewed from the end side inward along the length direction, the edge of the package has a portion aligned with the vertex and a portion not aligned with the vertex.

7. The absorbent article packaging body according to claim 5, characterized in that, When viewed from the end side inward along the length direction, the edge of the package does not have a portion aligned with the vertex.

8. The absorbent article packaging body according to claim 1, characterized in that, The package has an adhesive portion where adjacent portions in the thickness direction are bonded together, and a non-adhesive portion where adjacent portions in the thickness direction are not bonded together. The non-adhesive portion is located in the area containing the edge of the package. The adhesive portion is disposed adjacent to the non-adhesive portion in an intersecting direction that intersects with the direction along the edge of the package.

9. The absorbent article packaging body according to claim 8, characterized in that, When viewed from the end side inward along the length direction, at least a portion of the adhesive portion is located at a position different from that of the vertex.

10. The absorbent article packaging body according to claim 1, characterized in that, The packaging has a strap member and a membrane member covering the absorbent article. The membrane member has an outer membrane end located along the length direction and at the position closest to the outer side of the absorbent article packaging. The tape member is peelably adhered to the adjacent portion of the package in the thickness direction across the edge of the outer film end. The edge of the first side of the strap member to be unfolded is the edge of the package.

11. The absorbent article packaging body according to claim 1, characterized in that, The joint has a one-side joint portion located at one end along the length direction and a other-side joint portion located at the other end along the length direction. In the length direction, One end of the absorber is provided between the center of the length direction and the one-sided joint. The other end of the absorber is located between the center of the absorber in the longitudinal direction and the other side joint. The number of folds per unit area between the joint and the end of the absorber in the longitudinal direction is greater than the number of folds per unit area in the region from one end of the absorber to the other end of the absorber in the longitudinal direction.

12. The absorbent article packaging body according to claim 1, characterized in that, The package has a packaging section on one side, an adjacent packaging section on one side, a packaging section on the other side, and an adjacent packaging section on the other side. The packaging section on one side is located at the outermost side in the thickness direction. The adjacent packaging section on one side is adjacent to the packaging section on the other side of the packaging section on the same side in the thickness direction. The other packaging section is located at the position closest to the other side in the thickness direction. The other adjacent packaging section is adjacent to the other packaging section from one side of the other packaging section in the thickness direction. At the joint, at least a portion of the packaging portion on one side is joined to at least a portion of the packaging portion adjacent to it on the same side, and at least a portion of the packaging portion on the other side is joined to at least a portion of the packaging portion adjacent to it on the other side. The edge of the package is located on one side in the thickness direction. The force required to peel the packaging section on one side from the adjacent packaging section on the same side is greater than the force required to peel the packaging section on the other side from the adjacent packaging section on the other side.

13. The absorbent article packaging body according to claim 1, characterized in that, The package has a packaging section on one side, an adjacent packaging section on one side, a packaging section on the other side, and an adjacent packaging section on the other side. The packaging section on one side is located at the outermost side in the thickness direction. The adjacent packaging section on one side is adjacent to the packaging section on the other side of the packaging section on the same side in the thickness direction. The other packaging section is located at the position closest to the other side in the thickness direction. The other adjacent packaging section is adjacent to the other packaging section from one side of the other packaging section in the thickness direction. At the joint, at least a portion of the packaging portion on one side is joined to at least a portion of the packaging portion adjacent to it on the same side, and at least a portion of the packaging portion on the other side is joined to at least a portion of the packaging portion adjacent to it on the other side. The edge of the package is located on one side in the thickness direction. The force required to peel the packaging section on one side from the adjacent packaging section on the same side is less than the force required to peel the packaging section on the other side from the adjacent packaging section on the other side.

14. The absorbent article packaging body according to claim 1, characterized in that, The length in the width direction is longer than the length in the thickness direction.

15. The absorbent article packaging body according to claim 1, characterized in that, The absorbent packaging has markings indicating the location of the edges of the packaging.

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