Individual packaging piece for underwear type absorbent article and packaging body for individual packaging piece for underwear type absorbent article

Abstract

An independent package (100) for a panty-type absorbent article comprises: a panty-type absorbent article (1) having a waist opening (1a) and a pair of leg openings (1b) and having vertical, horizontal, and front-back directions perpendicular to each other when in an unfolded state; and a packaging member (101) for packaging a panty-type absorbent article (1), wherein the panty-type absorbent article (1) has a volatile substance (26) on its inner side; and an oxygen permeability of the packaging member (101) of 200 cc / m 2 / day / atm or less; in a packaged state, the underwear-type absorbent article (1) is folded at folding portions (LB, RB) extending in the vertical direction and at a folding portion (BL) extending in the horizontal direction; the packaging member (101) has at least one folding portion (LC1, LC2); and the folding portions (LC1, LC2) are along the vertical direction of the underwear-type absorbent article.

Description

Technical Field

[0001] The present invention relates to an individual package of a pant-type absorbent article and a packaging body for the individual package of a pant-type absorbent article. Background Art

[0002] As absorbent articles for absorbing excretions such as urine and feces, known are briefs-type disposable diapers and pant-type sanitary napkins. Patent Document 1 discloses a briefs-type disposable diaper containing a volatile fragrance that releases fragrance components into the atmosphere to reduce discomfort felt by the wearer.

[0003] Prior art literature

[0004] Patent Literature

[0005] Patent Document 1: Japanese Patent Application Publication No. 2018-102612 Summary of the Invention

[0006] Problems to be solved by the invention

[0007] However, in the underwear-type absorbent article including a fragrance of a volatile substance described in Patent Document 1, there is a risk that the volatile substance such as the fragrance evaporates before the wearer puts on the absorbent article, making it impossible for the wearer to recognize the effect of the volatile substance.

[0008] The present invention is proposed in view of problems such as those mentioned above, and one object of the present invention is to provide an independent package for a panty-type absorbent article, which enables a wearer, etc. to easily identify the effects of a volatile substance set in the panty-type absorbent article when wearing the absorbent article.

[0009] Solutions for solving problems

[0010] The main aspect of the present invention for achieving the above-mentioned purpose is an independent package for an underpants-type absorbent article, comprising: an underpants-type absorbent article, which has a waist opening and a pair of leg openings, and has an up-down direction, a left-right direction and a front-back direction that are orthogonal to each other when the underpants-type absorbent article is in an unfolded state; and a packaging component, which packages one of the underpants-type absorbent articles, wherein volatile substances are arranged on the inner side of the underpants-type absorbent article, and the oxygen permeability of the packaging component is less than 200cc / m2 / day / atm, and in the packaged state, the underpants-type absorbent article is folded at a folding portion extending along any one of the up-down direction and the left-right direction, and the packaging component has at least one folding portion, and the folding portion extends along the up-down direction of the underpants-type absorbent article.

[0011] In addition, a panty-type absorbent article having a waist opening and a pair of leg openings, and having up-down directions, left-right directions, and front-back directions that are orthogonal to each other when the panty-type absorbent article is in an unfolded state; and a packaging member that packages one of the panty-type absorbent articles, wherein a volatile substance is arranged on the inner side of the panty-type absorbent article, and the oxygen permeability of the packaging member is less than 200cc / m2 / day / atm, and in the packaged state, the panty-type absorbent article is folded at a folding portion extending along any one of the up-down direction and the left-right direction, and the packaging member has at least one folding portion, which extends along the left-right direction of the panty-type absorbent article, and the folding portion faces the waist opening.

[0012] Other features of the present invention than those described above will become apparent by reading the description of this specification with reference to the accompanying drawings.

[0013] Effects of the Invention

[0014] According to the present invention, it is possible to provide an individual package of a pants-type absorbent article that allows a wearer or the like to easily recognize the effect of a volatile substance provided in the pants-type absorbent article when wearing the absorbent article. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] [ Figure 1 ] Figure 1 is a schematic perspective view of the absorbent article 1 in its unfolded and natural state.

[0016] [ Figure 2 ] Figure 2 It is a plan view of the absorbent article 1 in a separated flat state and in an extended state when viewed from the skin side.

[0017] [ Figure 3 ] Figure 3 yes Figure 2 A plan view of the absorbent body 20 in FIG.

[0018] [ Figure 4 ] Figure 4 Along Figure 3 A cross-sectional view taken along line AA in FIG.

[0019] [ Figure 5 ] Figure 5 is a plan view of the individual package 100 .

[0020] [ Figure 6 ] Figure 6 is a schematic diagram of the absorbent article 1 in the unfolded state when viewed from the back side.

[0021] [ Figure 7 ] Figure 7A is a diagram Figure 6 FIG. 1 is a diagram showing a state in which the absorbent article 1 is folded at the folding reference position B1. Figure 7 B is a diagram Figure 7 A is a diagram showing a state in which the absorbent article 1 is folded at the folding reference position B2.

[0022] [ Figure 8 ] Figure 8 1 and 2 are diagrams illustrating the absorbent article 1 in a folded state.

[0023] [ Figure 9 ] Figure 9 Graphs showing the measurement results of menthol outflow.

[0024] [ Figure 10 ] Figure 10 It is a diagram illustrating the state of the first packaging step.

[0025] [ Figure 11 ] Figure 11 It is a diagram illustrating the state of the second packaging step.

[0026] [ Figure 12 ] Figure 12 It is a diagram illustrating the state of the third packaging step.

[0027] [ Figure 13 ] Figure 13 A is a plan view of an individual package 110 according to another embodiment. Figure 13 B is a plan view of an individual package 120 according to yet another embodiment.

[0028] [ Figure 14 ] Figure 14 A is a schematic perspective view of the package body 200 . Figure 14 B is an explanatory diagram illustrating the package 200 when viewed from the side surface 200C. DETAILED DESCRIPTION

[0029] At least the following matters will become clear from the description of this specification and the accompanying drawings.

[0030] A separate package for an underpants-type absorbent article, comprising: an underpants-type absorbent article having a waist opening and a pair of leg openings, and having up-down, left-right, and front-back directions that are orthogonal to each other when the underpants-type absorbent article is in an unfolded state; and a packaging member that packages one of the underpants-type absorbent articles, wherein a volatile substance is disposed on the inner side of the underpants-type absorbent article, and an oxygen permeability of the packaging member is less than 200cc / m2 / day / atm. In the packaged state, the underpants-type absorbent article is folded at a folding portion extending along either the up-down direction or the left-right direction, and the packaging member has at least one folding portion, and the folding portion extends along the up-down direction of the underpants-type absorbent article.

[0031] According to the individual packaging member for underpants-type absorbent articles, the underpants-type absorbent articles can be made into an even more compact individual packaging member, and at least one of the leg openings can be positioned on the folded portion side of the packaging member. This reduces the risk of volatile substances in the underpants-type absorbent articles leaking out of the packaging member through the leg openings.

[0032] In such an independent packaging piece of an underwear-type absorbent article, it is desired that in the packaging state, the packaging member has an end joint for joining the parts of the packaging member to each other, the end joint extending along the left-right direction of the underwear-type absorbent article, the end joint having a one side end joint and an other side end joint, the one side end joint being located at the end of the packaging member on one side in the up-down direction of the underwear-type absorbent article, the other side end joint being located at the end of the packaging member on the other side in the up-down direction of the underwear-type absorbent article, the joining strength of the one side end joint being higher than the joining strength of the other side end joint, and the waist opening being arranged on the one side in the up-down direction.

[0033] According to the individual packaging piece for a panty-type absorbent article, the bonding strength of the bonding portion at one end is higher than that at the other end. Therefore, compared with a case where the bonding strength at one end is lower than that at the other end, the risk of volatile substances leaking out of the packaging member from one end can be reduced.

[0034] A separate package for an underpants-type absorbent article, comprising: an underpants-type absorbent article having a waist opening and a pair of leg openings, and having up-down, left-right, and front-back directions that are orthogonal to each other when the underpants-type absorbent article is in an unfolded state; and a packaging component that packages one of the underpants-type absorbent articles, wherein a volatile substance is disposed on the inner side of the underpants-type absorbent article, and an oxygen permeability of the packaging component is less than 200cc / m2 / day / atm. In the packaged state, the underpants-type absorbent article is folded at a folding portion extending along any one of the up-down direction and the left-right direction, and the packaging component has at least one folding portion, which extends along the left-right direction of the underpants-type absorbent article, and the folding portion faces the waist opening.

[0035] According to the individual packaging member for underpants-type absorbent articles, the underpants-type absorbent articles are made into an even more compact individual packaging member, with the waist opening facing the folded portion of the packaging member. This reduces the risk of volatile substances contained in the underpants-type absorbent articles leaking out of the packaging member through the waist opening.

[0036] In such an independent package of an underpants-type absorbent article, it is desired that the underpants-type absorbent article is folded at upper and lower folding portions extending along the left-right direction, and that the volatile substance is arranged at a position closer to the crotch side of the folding portion in the upper and lower directions in the unfolded and natural state of the underpants-type absorbent article.

[0037] According to the individual packaging piece for the panty-type absorbent article, the folded portion of the packaging member prevents volatile substances from flowing out of the packaging member through the leg openings or waist opening, and the volatile substances located on the crotch side in the vertical direction relative to the upper and lower folded portions of the panty-type absorbent article are sandwiched between the folded portion and the crotch portion. This further reduces the risk of volatile substances flowing out of the packaging member.

[0038] In such an independent package of an underwear-type absorbent article, it is desired that the underwear-type absorbent article includes an absorbent body, the underwear-type absorbent article is folded at left and right folding portions extending along the up-down direction, and in the underwear-type absorbent article in an unfolded and natural state, the left and right folding portions are arranged on the outside of the absorbent body in the left and right directions, and the volatile substance is arranged on the inside of the left and right folding portions in the left and right directions.

[0039] According to the individual packaging piece for the panty-type absorbent article, the folded portion of the packaging member prevents volatile substances from flowing out of the packaging member through the leg openings or waist opening, while the left and right folded portions can narrow the path for volatile substances located inside the left and right folded portions of the panty-type absorbent article in the left and right directions to flow out of the leg openings. This further reduces the risk of volatile substances flowing out of the packaging member.

[0040] In such an independent package of an underwear-type absorbent article, it is desired that in the packaged state, the packaging member has: a direction extending along the folding portion, an orthogonal direction orthogonal to the direction extending along the folding portion, and a thickness direction orthogonal to the direction extending along the folding portion and the orthogonal direction, the packaging member has a joining portion for joining the parts of the packaging member to each other, the joining portion extends along the orthogonal direction, and when the underwear-type absorbent article is arranged at a specific position of the packaging member, the longest distance between the folding portion and the underwear-type absorbent article is shorter than the longest distance between the joining portion and the underwear-type absorbent article.

[0041] According to the individual packaging piece for the underpants-type absorbent article, in the packaged state, the space between the folded portion and the underpants-type absorbent article can be further reduced compared to a case where the longest distance between the folded portion and the underpants-type absorbent article is longer than the longest distance between the joint portion and the underpants-type absorbent article. Therefore, the amount of volatile substances that flow out of the packaging member through the leg openings or waist opening is reduced, making it easier to reduce the amount of volatile substances that flow out of the packaging member.

[0042] In such an independent package of an underwear-type absorbent article, it is desired that in the packaged state, the packaging member has: a direction extending along the folding portion, an orthogonal direction orthogonal to the direction extending along the folding portion, and a thickness direction orthogonal to the direction extending along the folding portion and the orthogonal direction, the packaging member has a joint portion for joining the parts of the packaging member to each other, the joint portion has an end joint portion and an inner joint portion, the end joint portion is a portion extending along the orthogonal direction and arranged at the end of the packaging member, the inner joint portion is a portion extending along the folding portion and arranged on the inner side of the folding portion in the orthogonal direction, and the joining strength of the inner joint portion is higher than the joining strength of the end joint portion.

[0043] According to the individual packaging member for panty-type absorbent articles, the individual packaging member for panty-type absorbent articles is easily opened by releasing the engagement of the end joints having a relatively low engagement strength, while the packaging member is easily kept in the bag shape by facilitating the engagement of the inner joints having a relatively high engagement strength. This makes it easy to carry or discard the used panty-type absorbent articles while still in the packaging member.

[0044] In such an independent package of an underwear-type absorbent article, it is desired that the underwear-type absorbent article is folded at the upper and lower folding portions extending along the left-right direction, and the underwear-type absorbent article is folded at the left and right folding portions extending along the up-down direction, and in the packaged state, the joining portion has an inner joining portion extending along the folding portion and arranged on the inner side of the folding portion in the orthogonal direction, and in the front-to-back direction of the underwear-type absorbent article, the inner joining portion is arranged at a position closer to the crotch than to the waist opening.

[0045] According to the individual packaging piece for the underwear-type absorbent article, the inner joint is located near the crotch. Furthermore, the crotch portion of the underwear-type absorbent article is generally provided with an absorbent body, and the rigidity of the crotch portion is higher than the rigidity of the portion provided with the waist opening. Therefore, the inner joint can be formed in a more stable state, making it easier to increase the bonding strength of the inner joint. Furthermore, because the waist opening can be provided on a surface of the individual packaging piece for the underwear-type absorbent article that does not have the inner joint in the thickness direction, the risk of volatile substances flowing out of the inner joint can be reduced.

[0046] In such an independent package of an underpants-type absorbent article, it is desired that in the packaged state, in the up and down directions of the underpants-type absorbent article, the length from the upper and lower folded parts to the waist opening is equal to or longer than the length from the upper and lower folded parts to the end of the crotch.

[0047] According to the independent package of the underwear-type absorbent article, due to folding in the upper and lower folding parts, the part located on the waist opening side relative to the upper and lower folding parts can cover a wider range of the leg openings, and this makes it possible to reduce the risk of volatile substances flowing out of the leg openings.

[0048] In such an independent package of an underpants-type absorbent article, it is desired that in the packaged state, in the up and down directions of the underpants-type absorbent article, the length from the upper and lower folded parts to the end of the crotch is longer than the length from the upper and lower folded parts to the waist opening.

[0049] According to the independent packaging piece of the underwear type absorbent article, the crotch portion can cover the waist opening, and the waist opening can be sandwiched between the crotch portion and the packaging member. This makes it possible to reduce the risk of volatile substances flowing out of the waist opening.

[0050] In a packaging body for independent packages of such underwear-type absorbent articles, it is desirable that the packaging body includes: a plurality of independent packages of the underwear-type absorbent articles; and a bag for accommodating the independent packages of the underwear-type absorbent articles, the oxygen permeability of the bag being less than 200cc / m2 / day / atm.

[0051] According to the packaging body for the individual packaging of panty-type absorbent articles, even when volatile substances provided in the panty-type absorbent articles flow out of the individual packaging of the panty-type absorbent articles, the risk of the volatile substances flowing out of the bag can be reduced.

[0052] In such a packaging body for individually packaged pants-type absorbent articles, it is desirable that the oxygen permeability of the packaging member is lower than that of the bag.

[0053] According to the packaging body for individually packaged pants-type absorbent articles, compared with a case where the oxygen permeability of the packaging member is higher than that of the bag, outflow of volatile substances is reduced and volatile substances are easily maintained inside the individual package.

[0054] In such a packaging body for an independent packaging piece for underwear-type absorbent articles, it is desired that, in the packaging state, the packaging member has an end joint for joining the various parts of the packaging member to each other, the end joint being a part extending along the left-right direction of the underwear-type absorbent article and arranged at the end of the packaging member, the end joint having a one-side end joint and an other-side end joint, the one-side end joint being located at the end of the packaging member on one side in the up-down direction of the underwear-type absorbent article, and the other-side end joint being located at the end of the packaging member on the other side in the up-down direction of the underwear-type absorbent article; the joining strength of the one-side end joint is higher than the joining strength of the other-side end joint, and in the state where the independent packaging piece of the underwear-type absorbent article is accommodated in the bag, the up-down direction of the underwear-type absorbent article is consistent with the up-down direction of the packaging body of the independent packaging piece for the underwear-type absorbent article, and the other-side end joint is in contact with the bottom surface of the bag.

[0055] According to the packaging body of the independent packaging piece for underwear-type absorbent articles, however, the other side end joint portion with lower joining strength contacts the bottom surface of the bag, which makes it difficult to generate a gap between the other side end joint portion and the bottom surface of the bag, thereby reducing the risk of volatile substances flowing out from the other side end joint portion.

[0056] ===Present embodiment===

[0057] The following describes a panty-type absorbent article (hereinafter also referred to as an "absorbent article") according to this embodiment, using a panty-type absorbent article as a so-called panty-type sanitary napkin as an example. However, panty-type absorbent articles are not limited to panty-type sanitary napkins and are also applicable to, for example, panty-type disposable diapers for adults and panty-type disposable diapers for infants. A "panty-type absorbent article" refers to an absorbent article in which, when housed in at least one packaging member (described later), the ends of the ventral waist portion and the dorsal waist portion in the left-right direction are detachably joined or inseparable.

[0058] <<Absorbent article 1>>

[0059] Figure 1 : is a schematic perspective view of the absorbent article 1 in its unfolded and natural state. Figure 1 As shown, the absorbent article 1 has "up-down direction", "left-right direction" and "front-back direction" orthogonal to each other in the unfolded state. "Unfolded state" means that the absorbent article 1 is in a natural state (where all folds of the absorbent article 1 are unfolded). "Natural state" means a state when the absorbent article 1 is left alone for a predetermined period of time. Figure 1 ) in the vertical direction of the absorbent article 1, the waist opening 1a side of the absorbent article 1 is defined as the "upper side", and the crotch side (crotch portion 10m side) is defined as the "lower side". In the front-to-back direction, the front side is also the "ventral side", and the back side is also the "dorsal side".

[0060] Figure 2It is a plan view of the absorbent article 1 in a separated plane state and in an extended state when viewed from the skin side. The "separated plane state" refers to a state in which the absorbent article is unfolded into a flat state by uncoupling the side end joints 10e and 10e at both ends of the panty-type absorbent article 1 in the left-right direction, and separating and opening the ventral waist portion 10f and the dorsal waist portion 10b in the up-down direction. The "extended state" refers to a state in which the absorbent article 1 is stretched to a wrinkle-free state, specifically, refers to a state in which the absorbent article 1 is stretched until the size of the constituent components of the absorbent article 1 (for example, the outer body 10 and the absorbent main body 20 described later) matches or is close to the size of the components themselves. The absorbent article 1 in the separated plane state and in an extended state has a "length direction", a "left-right direction" and a "thickness direction" that are orthogonal to each other. The "length direction" of the absorbent article 1 is perpendicular to the "length direction". Figure 1 The "up and down directions" of the absorbent article 1 in the unfolded and natural state are consistent, and Figure 2 The "thickness direction" of the absorbent article 1 shown is the same as Figure 1 The "front-back direction" of the absorbent article 1 in its unfolded, natural state is the same. The side that comes into contact with the wearer's skin is referred to as the "skin side," and the side opposite to the skin side is referred to as the "non-skin side." Furthermore, one side in the left-right direction is designated as the "left side" of the wearer wearing the absorbent article, and the other side in the left-right direction is designated as the "right side" of the wearer wearing the absorbent article. Figure 2 The CC line in the figure is the center line in the left and right directions.

[0061] The absorbent article 1 is a so-called two-piece pant-type sanitary napkin, and includes an outer body 10 and an absorbent main body 20 that absorbs excretions such as urine. Note that in the following description, a two-piece pant-type sanitary napkin (underpants-type absorbent article) will be described, but a so-called three-piece pant-type sanitary napkin (underpants-type absorbent article) in which the ventral waist portion and the dorsal waist portion are separately arranged may also be used.

[0062] The absorbent article 1 includes an abdominal waist portion 10f covering the wearer's abdomen, a crotch portion 10m positioned at the wearer's crotch, and a back waist portion 10b covering the wearer's back. The crotch portion 10m is a region located between the abdominal waist portion 10f and the back waist portion 10b in the longitudinal direction.

[0063] The outer body 10 of the absorbent article 1, in its flat, extended state, forms the outer shape of the absorbent article 1 and has a generally hourglass shape in plan view. Specifically, its longitudinal center portion narrows inward in the left-right direction. When in a panty-like configuration, the narrowed portion forms a pair of leg openings 1b. Furthermore, the outer body 10 has a one-side extension 10L positioned outward of one side of the absorbent body 20 in the left-right direction, and a second-side extension 10R positioned outward of the other side of the absorbent body 20 in the left-right direction.

[0064] like Figure 2 As shown, in the absorbent article 1 in the separated plane state and the stretched state, the ventral waist portion 10f is positioned at one end side in the longitudinal direction of the absorbent body 20, and the dorsal waist portion 10b is positioned at the other end side in the longitudinal direction of the absorbent body 20. The ventral waist portion 10f and the dorsal waist portion 10b have side end joints 10e that join the ventral waist portion 10f and the dorsal waist portion 10b at both end portions. Figure 2 The absorbent article 1 shown in the separated plane state and the stretched state is folded in half at the approximate center in the longitudinal direction, that is, at the folding line CL extending in the left-right direction and located at the crotch portion 10m. The side end portions of the ventral waist portion 10f and the side end portions of the dorsal waist portion 10b are joined to each other at the side end joint 10e to form an underpants shape. The side end joint 10e can be made by using well-known joining means such as ultrasonic joining, bonding or fusion joining. By forming the absorbent article into the shape of underpants, the underpants-type absorbent article has a waist opening 1a and a pair of leg openings 1b. Note that the folding line CL is the approximate center in the longitudinal direction of the absorbent article 1 and is a straight line extending in the left-right direction. Figure 1 In the pull-on absorbent article 1 shown, the folding line CL is the lowermost end of the folded portion of the absorbent article 1 and is one end of the crotch portion 10 m.

[0065] <Exterior body 10>

[0066] The outer body 10 includes an outer top sheet 11, an outer back sheet 12, a front waist elastic member 13, and a back waist elastic member 14. These are bonded and fixed to each other by a hot melt adhesive or the like.

[0067] The outer top sheet 11 and the outer back sheet 12 have substantially the same shape and form the outer shape of the absorbent article 1. The outer top sheet 11 can be made of a breathable nonwoven fabric, a spunbond nonwoven fabric, an SMS nonwoven fabric (spunbond / meltblown / spunbond nonwoven fabric), a waterproof film, etc. The outer back sheet 12 can be made of a breathable nonwoven fabric, a spunbond nonwoven fabric, an SMS nonwoven fabric (spunbond / meltblown / spunbond nonwoven fabric), etc. The ventral outer end and the dorsal outer end (upper end) of the outer back sheet 12 in the longitudinal direction respectively have a ventral folding portion 10ff and a dorsal folding portion 10bf, and the ventral folding portion 10ff and the dorsal folding portion 10bf are both folded back toward the skin side and wrap the outer end (upper end) of the outer top sheet 11. Note that a structure in which the ventral folding portion 10ff and the dorsal folding portion 10bf are not provided can also be adopted. However, the absorbent article 1 including the ventral fold 10ff and the dorsal fold 10bf can increase the thickness of the outer body 10 at the waist opening 1a. This makes it easier to reduce the amount of cooling agent 26 (described later) flowing out of the absorbent article 1 through the waist opening 1a.

[0068] The ventral waist elastic member 13 and the dorsal waist elastic member 14 are respectively disposed between the outer garment top sheet 11 and the outer garment back sheet 12 in the thickness direction of the ventral waist portion 10f and the dorsal waist portion 10b. The ventral waist elastic member 13 and the dorsal waist elastic member 14 are formed, for example, from a plurality of elastic cords. The ventral waist elastic member 13 and the dorsal waist elastic member 14 are bonded and secured together using an adhesive such as a hot melt adhesive. The ventral waist elastic member 13 and the dorsal waist elastic member 14 impart horizontal stretchability to the ventral waist portion 10f and the dorsal waist portion 10b, respectively.

[0069] Preferably, in the ventral waist portion 10f, due to the contraction force of the ventral waist elastic member 13, the contraction force of the upper end portion on the waist opening 1a side is greater than the contraction force of the lower end portion located at a position close to the crotch side. In addition, preferably, in the dorsal waist portion 10b, due to the dorsal waist elastic member 14, the contraction force of the upper end portion on the waist opening 1a side is greater than the contraction force of the lower end portion located at a position close to the crotch side. Therefore, by making the waist opening 1a easier to contract and shrinking the waist opening 1a, it is easy to reduce the amount of cooling agent 26 that flows out to the outside of the absorbent article 1 through the waist opening 1a. Note that the ventral waist portion 10f and the dorsal waist portion 10b may include stretch sheets that stretch in the left-right direction.

[0070] <Absorbent body 20>

[0071] The absorbent body 20 is joined to the skin side of the outer body 10. The method for joining the absorbent body 20 to the outer body 10 may be a known connecting method such as an adhesive, heat sealing, ultrasonic sealing, and a combination thereof.

[0072] Figure 3 yes Figure 2 A plan view of the absorbent body 20, Figure 4 It is along Figure 3 A cross-sectional view taken along line AA in FIG. Figure 3 : This is a plan view of the absorbent body 20 when viewed from the skin side. The absorbent body 20 includes: a liquid-absorbing absorbent body (absorbent core) 22; a core wrapping sheet 22a that covers the outer peripheral surface of the absorbent body 22; a first skin side sheet 24a; a second skin side sheet 24b; a non-skin side sheet 24c; a side sheet 24d; a crotch elastic member 30; and a cooling agent 26. The members are joined by an adhesive such as a hot melt adhesive or by known means such as welding or compression. In addition, a compression portion 40 is provided in the region of the absorbent body 20 where the absorbent body 22 is provided. Each of the compression portions 40 has a shape that extends generally in the length direction and is compressed in the thickness direction from the skin side.

[0073] The absorbent body 22 is a member obtained by molding a liquid absorbent material into a substantially rectangular shape, and the absorbent body 22 can absorb excrement such as urine. As the liquid absorbent material, liquid absorbent fibers (e.g., pulp fibers), superabsorbent polymers, etc. can be used. Note that the shape of the absorbent body 22 is not necessarily limited to Figure 2 As an example, the core wrapping sheet 22a is a liquid-permeable sheet made of tissue paper, nonwoven fabric, etc. However, the core wrapping sheet 22a may be omitted.

[0074] The first skin side sheet 24a is a liquid-permeable sheet member that can come into contact with the wearer's skin when the absorbent article is worn, and the first skin side sheet 24a has a generally rectangular shape and a planar size that is larger than the planar size of the absorbent body 22. The second skin side sheet 24b is superimposed on the non-skin side of the first skin side sheet 24a. The first skin side sheet 24a and the second skin side sheet 24b are arranged on the skin side relative to the absorbent body 22. The first skin side sheet 24a and the second skin side sheet 24b are made of, for example, a hydrophilic breathable non-woven fabric or a spunbond non-woven fabric. Note that it is acceptable to set only one of the first skin side sheet 24a and the second skin side sheet 24b. For example, it is also acceptable to set the following structure: the first skin side sheet 24a is located on the skin side relative to the absorbent body 22, but no sheet member (second skin side sheet 24b) is set between the first skin side sheet 24a and the absorbent body 22; and only a core packaging sheet is set between the first skin side sheet 24a and the absorbent body 22.

[0075] The non-skin side sheet 24c is a substantially rectangular sheet having a planar dimension larger than that of the absorbent body 22 and is a liquid-impermeable sheet that covers the absorbent body 22 from the non-skin side. For example, a polyethylene film or a polypropylene film can be used as the non-skin side sheet 24c.

[0076] The side panels 24d are generally rectangular sheet members whose planar dimensions are larger than the planar dimensions of the absorbent body 22. The side panels 24d are made, for example, of air-permeable nonwoven fabric or spunbond nonwoven fabric. When viewed from the skin side, the side panels 24d cover both left and right ends of the absorbent body 22. Specifically, the side panels 24d extend from one left and right end of the absorbent body 22 and are folded back in the thickness direction toward the non-skin side outside of one left and right end of the absorbent body 22. The side panels 24d cover the entire non-skin side of the absorbent body 22. Furthermore, the side panels 24d are folded back in the thickness direction toward the skin side outside of the other left and right end of the absorbent body 22, covering the other left and right end of the absorbent body. Elastic members 50S are secured to the side panels 24d on the skin side relative to the absorbent body 22. Contraction of the elastic members 50S forms a pair of three-dimensional gathers 50, which act as leak-proof walls and prevent excrement from leaking out of the absorbent body 20 in the left and right direction.

[0077] The crotch elastic member 30 is disposed on the non-skin side relative to the absorbent body 22 and the non-skin side panel 24c in the thickness direction, and on the skin side relative to the side panel 24d, that is, disposed between the non-skin side panel 24c and the side panel 24d. In this embodiment, the crotch elastic member is a plurality of (four) elastic cords extending along the length direction. However, the number of elastic cords is not limited to this, and a single elastic cord or four or more elastic cords may be provided. The crotch elastic member is not limited to elastic cords and may be, for example, a stretchable band-shaped elastic sheet.

[0078] The cooling agent 26 is provided on the inner side of the absorbent article 1, and the area provided (applied) with the cooling agent 26 is referred to as the coating area 26P. Figure 3 The "inner side of the absorbent article 1" refers to the skin side relative to the outer back sheet 12 (the outermost sheet of the absorbent article 1). In this embodiment, the cooling agent 26 is applied to the non-skin side of the first skin side sheet 24a, such as Figure 3As shown, the coating region 26P is provided at the center of the absorbent body 22 in the left-right direction, excluding the end portions, and extends longitudinally across the entire absorbent body 22. In particular, it is preferred that the cooling agent 26 be provided at the center of the absorbent body 22 in the left-right direction so that the cooling agent 26 comes into contact with the wearer's excretion opening (vaginal opening) when the absorbent article is worn. In this embodiment, the coating region 26P is provided on the first skin-side sheet 24a. However, the configuration is not limited to this, and the first skin-side sheet 24a can be located anywhere as long as it is inside the absorbent article 1. However, it is preferred that the coating region 26P be provided in the absorbent body 20 so that the wearer can feel the effect of the cooling agent 26 on their skin. Furthermore, it is more preferred that the cooling agent 26 be provided on the non-skin side of the first skin-side sheet 24a. In this case, it is preferred that the amount of cooling agent 26 retained by the first skin-side sheet 24a in the absorbent article 1 is greater than that retained by the side sheet 24d. The first skin side sheet 24a is a member of the absorbent body 20 that is located close to the wearer's skin when the absorbent article is worn, which makes it easy for the wearer to feel the effect of the cooling agent 26 provided on the first skin side sheet 24a. On the other hand, by reducing the amount of cooling agent 26 held by the side sheet 24d, the risk of a decrease in the adhesiveness of an adhesive such as a hot melt adhesive used to fix the elastic member 50S to the side sheet 24d can be reduced.

[0079] The cooling agent 26 is a substance that reduces discomfort caused by airtightness or stickiness, and also includes a cooling stimulant that stimulates the wearer's sense of temperature. The cooling stimulant of this embodiment is a substance that exerts a cooling effect while the wearer is wearing the absorbent article. For example, when excretions such as urine or menstrual blood are excreted and absorbed by the absorbent body 20, the wearer is more likely to experience discomfort caused by the excretions, making it difficult for the wearer to feel the effects of the cooling agent 26. In contrast, the cooling stimulant used in the cooling agent 26 of this embodiment does not respond to the moisture contained in the excretions to exert its effect. Using a substance that exerts a cooling effect from the moment the wearer puts on the absorbent article 1 makes it easier for the wearer to feel the effects of the cooling agent 26, making it easier for the wearer to experience the refreshing sensation produced by the cooling agent 26. The cooling agent 26 provided in the absorbent article 1 is applied in a mixed state with a volatile solvent, and therefore has high volatility.

[0080] From the perspective of the wearer's sense of security, it is preferred that the cooling stimulant be a plant-derived substance. Examples of cooling stimulants include menthol (e.g., l-menthol); menthol derivatives (e.g., menthyl lactate, menthyl glycerol); methyl salicylate; and essential oils derived from plants such as mint or eucalyptus.

[0081] Preferably, the cold stimulant of the cooling agent 26 is a substance that stimulates a thermosensitive TRP channel. For example, TRPM8 of one of the thermosensitive TRP channels is a cold-sensitive receptor as a cooling sensor. Menthol (e.g., l-menthol) and its derivatives (e.g., menthyl lactate) activate TRPM8 so that the cooling sensor can react even when the temperature is not actually reduced, thereby giving the wearer a cooling sensation. That is, instead of lowering the temperature by absorbing heat through the material itself, it is preferred that the wearer feel a cooling sensation. Therefore, the wearer can feel a cooling sensation without excessive cooling of the skin.

[0082] Furthermore, by bringing the cooling agent 26 into direct contact with the wearer's skin, the cooling agent 26 is more likely to exert its effects. For example, while volatile substances such as fragrances can suppress nearby odors when in a gaseous state, the cooling agent 26 exerts its primary effect when it vaporizes and comes into direct contact with the wearer's skin. Specifically, by bringing the cooling agent 26 into contact with the wearer's skin via the nonwoven fabric (first skin-side sheet 24a), the wearer gradually feels the effects of the cooling agent 26 on their skin.

[0083] The solvent is not particularly limited as long as it contains the cooling stimulant. Examples of the solvent include lipophilic solvents and hydrophilic solvents. The solvent can, for example, dissolve or disperse the cooling stimulant.

[0084] Examples of lipophilic solvents include fats and oils, such as natural oils (eg, fatty esters such as triglycerides, coconut oil, linseed oil, capric / capric triglyceride, etc.) and hydrocarbons (eg, paraffins such as liquid paraffin, etc.).

[0085] Examples of hydrophilic solvents include water and alcohols. Examples of alcohols include lower alcohols such as methanol, ethanol, ethylene glycol, and glycerol, and higher alcohols such as octanol, dodecanol, and myristyl alcohol.

[0086] <<Individual Package 100>>

[0087] The absorbent article 1 is packaged with the packaging member 101 to form an individual package 100 . Figure 5 This is a plan view of an individual package 100. The absorbent article 1 in the individual package 100 is contained within a packaging member 101, folded at folds LB and RB extending vertically or folds BL extending horizontally. Hereinafter, the individual package 100 and the absorbent article 1 packaged in the packaging member 101 will be referred to as the "packaged individual package 100" or the "packaged absorbent article 1." Furthermore, the state in which the absorbent article 1 can be packaged in the packaging member 101 is also referred to as the "folded state."

[0088] In addition, Figure 5 In the packaged state, the left-right direction and the up-down direction of the absorbent article 1 are consistent with the left-right direction and the up-down direction of the independent package 100, and the front-to-back direction of the absorbent article 1 is consistent with the thickness direction of the independent package 100. In addition, in the packaged state, the packaging member 101 has a folding direction extending along the folding portions LC1 and LC2 (described later), an orthogonal direction orthogonal to the folding direction, and a thickness direction orthogonal to the folding direction and the orthogonal direction. In the independent package 100 in the packaged state, the folding direction of the packaging member 101 is consistent with the up-down direction of the independent package 100 and the absorbent article 1. The orthogonal direction of the packaging member 101 is consistent with the left-right direction of the independent package 100 and the absorbent article 1. The thickness direction of the packaging member 101 is consistent with the thickness direction of the independent package 100 and the front-to-back direction of the absorbent article 1.

[0089] <Absorbent article 1 in folded state>

[0090] The absorbent article 1 in the folded state is a state in which the absorbent article 1 in the unfolded state is folded at a folded portion extending in the up-down direction and the left-right direction. Figure 6 Schematic diagram of the absorbent article 1 in the unfolded state when viewed from the back side. Figures 6 to 12 One side leg opening 1b in the figure is indicated by the lower left hatched portion.

[0091] from Figure 6 From the unfolded state shown, the absorbent article 1 is formed in a folded state by folding the absorbent article 1 at the folding reference positions B1, B2 and B3, respectively. Figure 8 ). The folding reference positions B1, B2, and B3 are positions that serve as references (fulcrums) when folding the absorbent article 1. In the absorbent article 1 (individual package 100), first, Figure 6 From the expanded state shown, the absorbent article 1 is folded inward in the left-right direction at each of folding reference positions B1 and B2. Folding reference position B1 is a reference position for folding in the vertical direction and is set at any position on the one-side extension 10L. Folding reference position B2 is a reference position for folding in the vertical direction and is set at any position on the other-side extension 10R. Folding reference position B3 is a reference position for folding in the left-right direction and is set at the lower side (crotch side) relative to the vertical center of the expanded absorbent article 1.

[0092] from Figure 6From the unfolded state shown, first, the portion of the one side extension 10L located outside the folding reference position B1 in the left-right direction is folded toward the back side, so that the absorbent article 1 enters Figure 7 Next, the portion of the other side extension 10R located outside the folding reference position B2 in the left-right direction is folded toward the back side, so that the absorbent article 1 enters the state shown in FIG. Figure 7 The state shown in B. Figure 7 A is a diagram Figure 6 FIG. 1 is a diagram showing a state in which the absorbent article in FIG. 1 is folded at the folding reference position B1. Figure 7 B is a diagram Figure 7 The absorbent article 1 in A is folded at the folding reference position B2. Figure 7 As shown in FIG. 1B , by folding at folding reference positions B1 and B2, a portion of the folded portion of one side extension 10L and a portion of the folded portion of the other side extension 10R overlap each other in the thickness direction (front-back direction). This makes it possible to further reduce the left-right length of the absorbent article 1 in the folded state. Note that either one side extension 10L or the other side extension 10R can be folded first.

[0093] Note that a portion of the one side extension 10L and a portion of the other side extension 10R are respectively Figure 7 A and Figure 7 In the folded state at the folding reference position B1 and the folding reference position B2 shown in B ( Figure 7 B), when the absorbent article 1 is viewed from the upper side (e.g., the back side) in the thickness direction (front-back direction), the end located furthest on one side in the left-right direction is referred to as the "one side folded portion LB," and the end located furthest on the other side in the left-right direction is referred to as the "other side folded portion RB." The one side folded portion LB and the other side folded portion RB are also referred to as "left and right folded portions." Both the one side folded portion LB and the other side folded portion RB extend in the up-down direction. Since the absorbent article 1 has a predetermined thickness, the one side folded portion LB and the other side folded portion RB in the folded state are located outside the folding reference position B1 and the folding reference position B2 in the left-right direction, respectively. Note that in the unfolded state, the one side folded portion LB overlaps with the folding reference position B1 in the front-back direction (thickness direction), and the other side folded portion RB overlaps with the folding reference position B2 in the front-back direction (thickness direction). In addition, in this embodiment, the assumption has been described that the "left and right folded portions LB and RB extending in the up-down direction" are parallel to the up-down direction of the absorbent article 1, but the structure is not limited to this. The left and right folded portions LB and RB extending in the up-down direction may be inclined at an angle within a range of 45 degrees with respect to the up-down direction.

[0094] Subsequently, regarding the Figure 7The absorbent article 1 in the state shown in B is folded upward (toward the waist opening 1a side) so that the portion of the absorbent article 1 located on the lower side (crotch side) in the vertical direction relative to the folding reference position B3 is placed in the waist opening 1a. Figure 8 Shown in folded state. Figure 8 : is a diagram illustrating an absorbent article 1 in a folded state. When the absorbent article 1 in the folded state is folded in the up-down direction at the folding reference position B3 extending in the left-right direction and is viewed from the upper side in the thickness direction, the lowermost end of the absorbent article 1 in the up-down direction is referred to as the "upper and lower folding portion BL". The upper and lower folding portions BL extend in the left-right direction. Since the absorbent article 1 has a predetermined thickness, the upper and lower folding portions BL in the folded state are located on the upper side of the folding reference position B3 in the up-down direction (on the waist opening 1a side relative to the folding reference position B3). In addition, in the present embodiment, the assumption that the "upper and lower folding portions BL extending in the left-right direction" are parallel to the left-right direction of the absorbent article 1 has been described, but the construction is not limited thereto. The upper and lower folding portions BL extending in the left-right direction can be inclined at an angle within a range of 45 degrees relative to the left-right direction. Note that in the unfolded state, the upper and lower folding portions BL overlap with the folding reference position B3 in the front-to-back direction (thickness direction). In addition, as Figure 3 As shown, it is preferable that the folding reference position B3 is set in a manner perpendicular to the up-down direction of the absorbent body 22 in the unfolded state. In addition, the folding reference position B3 can be set in a manner intersecting with the compression portion 40 provided in the absorbent body 20. The absorbent body 22 is a member having high rigidity in the absorbent article 1. Similarly, the compression portion 40 is a portion having relatively high rigidity in the absorbent article 1. By folding at the portion intersecting with the compression portion 40 having high rigidity, it is easier to give the absorbent body 22 a so-called crease, making it easier to maintain the folded state of the absorbent article 1. This makes it easy to reduce the risk of the cooling agent 26 provided inside the absorbent article 1 volatilizing through the waist opening 1a.

[0095] <Packaging Method Using Packaging Member 101>

[0096] A method for packaging the absorbent article 1 in a folded state using the packaging member 101 will be described below. Figure 10 : is a diagram illustrating the state of the first packaging step. In the first packaging step, as Figure 10 As shown, a rectangular packaging member 101 having a size larger than that of the absorbent article 1 in the folded state is unfolded and spread horizontally, and the absorbent article 1 in the folded state is placed approximately in the center of the packaging member 101. At this time, in the absorbent article 1 in the folded state, the waist opening 1a (waist parts 10f and 10b) side in the thickness direction (front-back direction) is the side in contact with the packaging member 101 (lower side), and the crotch part 10m side is the upper side. Note that Figure 10 The first folding reference position L1 shown is the reference position for folding the packaging member 101 in the second packaging step, and the second folding reference position L2 is the reference position for folding the packaging member 101 in the third packaging step. At this time, the first folding reference position L1 and the second folding reference position L2 are set so as to coincide with the vertical direction of the absorbent article 1.

[0097] As for the packaging member 101, by using a material that is difficult to allow volatile substances such as the cooling agent 26 to permeate (a material with low water vapor permeability), the risk of the cooling agent 26 included in the absorbent article 1 flowing out to the outside of the individual package 100 can be reduced. As the packaging member 101 that is difficult to allow volatile substances to permeate, a material with an oxygen permeability of 200 cc / m in the thickness direction at 23°C is used. 2 The permeability of volatile substances in the thickness direction of the packaging member 101 is approximately proportional to the oxygen permeability, and therefore, the oxygen permeability in the thickness direction of the packaging member 101 is used to determine the degree of permeability of volatile substances in the thickness direction of the packaging member 101.

[0098] As the packaging member 101, a sheet member made of, for example, ethylene-vinyl alcohol copolymer resin (EVOH resin), polyester (PET), polyvinyl alcohol, polyvinyl chloride (PVC), nylon, etc. can be used. The packaging member 101 of this embodiment is a sheet of a multilayer film material made of PE / admer / EVOH / admer / PE containing ethylene-vinyl alcohol copolymer resin (EVOH resin), and the oxygen permeability of the packaging member 101 of this embodiment is 2.0 cc / m 2 The oxygen transmission rate of the packaging member 101 can be measured under the conditions of 23° C. and 0% RH by a known method such as a coulometric method (MOCON method).

[0099] Specifically, filter paper impregnated with menthol, serving as the cooling agent 26, and a packaging member 101 made of EVOH resin were first prepared, and the weights of the filter paper and packaging member 101 were measured. Subsequently, the menthol-containing filter paper was placed on the packaging member 101 made of EVOH resin, folded at two locations, and sealed with a sealing member to prepare Sample A. The weight of Sample A was then measured. The weight of the filter paper without menthol and the weight of the packaging member 101 were subtracted from the weight of Sample A in this state to obtain the weight of the menthol contained in the filter paper. Thereafter, after a predetermined period of time under predetermined conditions (for example, after being placed in a constant temperature and humidity chamber at 40°C and 70% humidity for one and four weeks), the weight of Sample A was measured, and the weight loss from the time before the predetermined period was calculated, thereby obtaining the outflow amount of menthol (cooling agent 26). Furthermore, by comparing the weight of the menthol after the predetermined period of time with the weight of the menthol before the predetermined period of time, the menthol decrease rate can be calculated. Note that it is preferable to measure the outflow amount of menthol or the like a predetermined number of times (for example, 10 times) and obtain the average value thereof.

[0100] Similarly, the outflow amount of menthol (cooling agent 26) can be obtained by the same method for each of the following samples: Sample B was prepared by placing filter paper containing menthol on a sheet made of PET, folding the filter paper at two locations, and sealing the filter paper with a sealing member; Sample C was prepared by placing filter paper containing menthol on a sheet made of polyvinyl chloride (PVC), folding the filter paper at two locations, and sealing the filter paper with a sealing member; Sample D was prepared by placing filter paper containing menthol on a sheet made of polyethylene (PE), folding the filter paper at two locations, and sealing the filter paper with a sealing member. Note that the size of the sheet and the size of the filter paper in the samples were the same.

[0101] Figure 9 Graph showing the measurement results of menthol outflow. Figure 9In the table, each weight and ratio represents an average value. At the start of measurement, the weight of menthol in sample A (EVOH resin, packaging member 101) was 0.5g. After one week, the weight of menthol decreased by 2% compared to the start of measurement. After four weeks, the weight of menthol decreased by 2% compared to the start of measurement. At the start of measurement, the weight of menthol in sample B (PET sheet) was 0.5g. At the start of measurement, the weight of menthol in sample C (PVC sheet) was 0.5g. After one week, the weight of menthol decreased by 6% compared to the start of measurement. After four weeks, the weight of menthol decreased by 10% compared to the start of measurement. At the start of measurement, the weight of menthol in sample D (PE sheet) was 0.5g. After one week, the weight of menthol decreased by 32% compared to the start of measurement. After four weeks, the weight of menthol decreased by 98% compared to the start of measurement.

[0102] The oxygen permeability of the sheet members used in Samples A to D is as follows: the oxygen permeability of the sheet made of EVOH resin is 2.0 cc / m 2 / day / atm, the oxygen transmission rate of the sheet made of PET is 80cc / m 2 / day / atm, the oxygen permeability of a sheet made of PVC is 200cc / m 2 / day / atm, the oxygen permeability of the sheet made of PE is 7900cc / m 2 / day / atm.

[0103] Comparing the weight of the cooling agent 26 before the predetermined time period and the weight of the cooling agent 26 after the predetermined time period in Samples A to D, if the reduction rate of menthol is 10% or less, the wearer can easily recognize the cooling agent 26 in the crotch (the portion in contact with the absorbent body 20) when wearing the absorbent article. Regarding the weight of the cooling agent 26 after 4 hours in Samples A to D, the following results were obtained: 2 / day / atm or less, a predetermined weight of menthol remains in a sheet made of EVOH resin, a sheet made of PET, a sheet made of aluminum, and a sheet made of PVC; in contrast, in a sheet with an oxygen permeability of more than 200cc / m 2In the PE sheet, which was exposed to menthol at 100 mg / day / atm, almost no menthol remained. Furthermore, in the EVOH resin sheet, the PET sheet, and the PVC sheet, the menthol reduction rate changed slightly after 1 week and 4 weeks, while in the PE sheet, the menthol reduction rate changed significantly after 1 week and 4 weeks. This indicates that menthol leaks through the PE sheet over time.

[0104] According to the outflow results of the cooling agent 26 of samples A to D, it can be seen that when the oxygen permeability is 200cc / m 2 When a sheet made of PVC (sample C) with a temperature of 200 cc / m / day is used as the packaging member 101, the sheet has gas impermeability sufficient to feel the effect of the cooling agent 26. However, when a sheet made of PE (sample D) is used as the packaging member 101, the sheet does not have gas impermeability sufficient to feel the effect of the cooling agent 26. Therefore, it is preferable that the packaging member 101 has a gas impermeability of 200 cc / m in the thickness direction. 2 Sheet member with an oxygen permeability of less than 100 / day / atm.

[0105] The packaging member 101 is folded at the folding reference position L1 by folding the first folded portion 101L on one side in the left-right direction of the packaging member 101 toward the other side so that the first folded portion 101L covers the crotch portion 10m side of the absorbent article 1 in the folded state. Figure 11 The status of the second packaging step is shown. Figure 11 : is a diagram illustrating the state of the second packaging step. Figure 11 In FIG. 1 , the first folded portion 101L is indicated by the lower left hatched portion. Figure 11 As shown, in the second packaging step, by setting the folding reference position L1 to one side end of the absorbent article 1 in the left-right direction, it is possible to bring one side in the left-right direction into a state where there is substantially no gap (a small gap) between the absorbent article 1 and the packaging member 101. Furthermore, when the first folding portion 101L is folded back at the folding reference position L1, when the individual package 100 (the individual package 100 during packaging) is viewed from the top (e.g., the back) in the thickness direction (the front-back direction of the absorbent article 1) in the state where the first folding portion 101L is folded back, the end located furthest from one side in the left-right direction is referred to as "one-side folded portion LC1."

[0106] In the second packaging step, an adhesive 101h such as a hot melt adhesive is applied to the other side end portion in the left-right direction of the outer surface of the first folding portion 101L. The adhesive 101h is an adhesive portion for joining the first folding portion 101L and the second folding portion 101R to form the joining portion 102. In order to prevent foreign matter from being mixed into the interior of the independent package 100 and to reduce the risk of the cooling agent (volatile substance) 26 located on the absorbent article 1 flowing out of the independent package 100, it is preferable to continuously apply the adhesive 101h from the upper end to the lower end of the packaging member 101 along the upper and lower directions of the absorbent article 1. Note that the adhesive 101h only needs to be able to adhere the outer surface of the first folding portion 101L to the inner surface of the second folding portion 101R. Therefore, the adhesive 101h can be provided on the inner surface of the second folding portion 101R without providing the adhesive 101h on the outer surface of the first folding portion 101L.

[0107] Subsequently, the packaging member 101 is folded at the folding reference position L2 by folding the second folding portion 101R on the other side in the left-right direction of the packaging member 101 toward the one side so that the first folding portion 101L and the second folding portion 101R cover the crotch portion 10m end side of the absorbent article 1 in the folded state. Figure 12 The status of the third packaging step is shown. Figure 12 : is a diagram illustrating the state of the third packaging step. Figure 12 In FIG. 1 , the second folded portion 101R is indicated by the lower left hatched portion. Figure 12 As shown, in the third packaging step, by setting the folding reference position L2 to the other side end of the absorbent article 1 in the left-right direction, the other side in the left-right direction can be brought into a state where there is substantially no gap (a small gap) between the absorbent article 1 and the packaging member 101. Furthermore, when the second folded portion 101R is folded back at the folding reference position L2, when the individual package 100 (the individual package 100 during packaging) is viewed from the top (e.g., the back) in the thickness direction (the front-back direction of the absorbent article 1) in the thickness direction (the front-back direction of the absorbent article 1), the end located furthest from the other side in the left-right direction is referred to as the "other side folded portion LC2."

[0108] In the third packaging step, the other side end of the first folded portion 101L and the one side end of the second folded portion 101R in the left-right direction are overlapped at approximately the center of the left-right direction. These ends are bonded using the adhesive 101h provided on the outer surface of the first folded portion 101L in the second packaging step, thereby forming an inner bond 102. Specifically, the inner bond 102 is a bond formed by the adhesive 101h. Preferably, the inner bond 102 extends along the one side folded portion LC1 and the other side folded portion LC2 and in the vertical direction, and the inner bond 102 is continuous from one side end to the other side end in the vertical direction. Furthermore, the inner bond 102 is provided inside the one side folded portion LC1 and inside the other side folded portion LC2 in the left-right direction (orthogonal direction). Specifically, the inner bond 102 is provided between the one side folded portion LC1 and the other side folded portion LC2 in the left-right direction and is located approximately at the center of the individual package 100 in the orthogonal direction. According to the third packing step, the packing member 101 has two surfaces in the thickness direction, ie, a surface where the inner joining portion 102 is not provided and a surface where the inner joining portion 102 is provided.

[0109] Note that in this embodiment, the first folding portion 101L of the packaging member 101 is folded at the folding reference position L1 in the second packaging step, and the second folding portion 101R of the packaging member 101 is folded at the folding reference position L2 in the third packaging step. However, the present invention is not limited to this. The second folding portion 101R of the packaging member 101 may be folded in the second packaging step, and the first folding portion 101L may be folded in the third packaging step.

[0110] Finally, in the fourth packaging step, a pair of end joints 103 are formed. One side end joint 103a and the other side end joint 103b are respectively formed at one side end and the other side end in the up and down directions (orthogonal directions) of the packaging member 101. The one side end joint 103a and the other side end joint 103b are joints formed by welding under the application of heat and pressure. Preferably, the one side end joint 103a and the other side end joint 103b are continuous along the left and right directions (orthogonal directions) from one side end in the left and right directions to the other side end in the left and right directions. By forming the pair of end joints 103, the absorbent article 1 is brought into a state of being housed in the packaging member 101, and a state as shown in FIG. Figure 5 Individual packages 100 are shown.

[0111] <Individual package 100 in packaged state>

[0112] For reasons such as portability, the individual packaging 100 of absorbent articles 1, such as sanitary napkins, is preferably compact. Furthermore, it is desirable that the wearer feel the effects of volatile substances, such as the cooling agent 26, within the absorbent article 1, when wearing the absorbent article 1. Volatile substances, such as the cooling agent 26, disposed within the absorbent article 1 are more likely to flow out of the absorbent article 1 through the waist opening 1a or leg openings 1b, which are opened to serve as "openings."

[0113] In the individual package 100, the absorbent article 1 is in a folded state (the absorbent article 1 is folded at left and right folded portions LB and RB extending in the vertical direction and at upper and lower folded portions BL extending in the horizontal direction), and the absorbent article 1 including the cooling agent 26 is packaged using a packaging member 101 having a folded portion LC1 on one side. In the packaging member 101, the oxygen permeability is 200 cc / m 2 / day / atm or less, and one side folded portion LC1 extends along the up-down direction of the absorbent article 1.

[0114] Generally, a pant-type absorbent article is provided with leg openings 1b extending outward on both sides in the left-right direction perpendicular to the up-down direction. Therefore, when the one-side folded portion LC1 of the packaging member 101, which is positioned on the outside of the absorbent article 1 in the left-right direction, extends in the up-down direction of the absorbent article 1, the oxygen permeability is 200cc / m 2 / day / atm or less. The one side folded portion LC1 of the packaging component 101 can cover at least a portion of the one side leg opening 1b in the left-right direction, so that the one side folded portion LC1 can act as a cover to reduce the outflow amount of the cooling agent 26 flowing out of the one side leg opening 1b to the outside of the independent package 100.

[0115] In the case where the parts of the packaging member 101 are joined to each other and the joined portion extending in the up-down direction is provided on one side in the left-right direction relative to the absorbent article 1, there is a risk that the cooling agent 26 will flow out from the gap between the joined portions. In contrast, as in the absorbent article 1, in the case where the oxygen permeability is 200 cc / m 2 When the one-side folded portion LC1 of the seamless packaging member 101 extending in the vertical direction of the absorbent article 1 and provided on the one side relative to the absorbent article 1 is provided, the risk of the cooling agent 26 leaking out of the leg opening 1b on one side to the outside of the individual package 100 can be reduced. By reducing the risk of the cooling agent 26 leaking out of the leg opening 1b on one side to the outside of the individual package 100, the risk of the amount of cooling agent 26 inside the individual package 100 being reduced is reduced, making it easier for the wearer to feel the effect of the cooling agent 26 when opening the individual package 100 or when wearing the absorbent article 1.

[0116] Furthermore, compared to a configuration in which the vertically extending joined portion of the packaging member 101 is located on one side of the absorbent article 1 in the left-right direction, by configuring the absorbent article 1 in a folded state and having the vertically extending folded portion LC1 located on one side of the absorbent article 1 in the left-right direction, the left-right length of the individual packaging member 100 can be reduced, making the individual packaging member 100 more compact. In other words, the difference between the left-right length of the folded absorbent article 1 and the left-right length of the individual packaging member 100 can be further reduced. In this case, it is preferred that the absorbent article 1 in its packaged (folded) state be in contact with the packaging member 101 at either one side or the other side in the left-right direction.

[0117] In addition, the cooling agent 26 contains a volatile solvent, and the cooling agent 26 vaporizes in a state containing a cooling stimulant. Therefore, there is a risk that the vaporization of the cooling agent 26 is promoted by external stimuli or external air circulation. In comparison, when the independent package 100 is formed into a compact shape and the difference between the length of the absorbent article 1 in the left-right direction in the folded state and the length of the independent package 100 in the left-right direction is reduced, the movement of the absorbent article 1 relative to the packaging member 101 inside the independent package 100 can be reduced. This makes it easy to reduce the vaporization of the cooling agent 26, making it easy for the wearer to feel the effect of the cooling agent 26. Note that the "outflow" of the cooling agent 26 includes not only the outflow of the cooling agent 26 in a liquid state or a solid state, but also the outflow of the cooling agent 26 in a vaporized state.

[0118] The absorbent article 1 has a pair of leg openings 1b that open toward the left and right sides, and the packaging member 101 includes not only the one-side folded portion LC1 but also the other-side folded portion LC2. Therefore, similar to reducing the outflow of the cooling agent 26 that flows out from the one-side leg opening 1b in the left-right direction to the outside of the independent package 100, it is possible to reduce the outflow of the cooling agent 26 that flows out from the other-side leg opening 1b in the left-right direction of the absorbent article 1 to the outside of the independent package 100. This makes it easy for the wearer to feel the effect of the cooling agent 26 when opening the independent package 100 or when putting on the absorbent article 1. Note that the independent package 100 has a roughly symmetrical shape in the left-right direction (orthogonal direction), and therefore, the features of the one-side folded portion LC1 are the same as the features of the other-side folded portion LC2, and their detailed description will not be repeated.

[0119] Preferably, in the absorbent article 1 in the unfolded and natural state, the cooling agent 26 is provided on the crotch side relative to the upper and lower folded portions BL in the up-down direction. Figure 3The figure shows the positions corresponding to the upper and lower folds BL in the absorbent body 20 of the absorbent article 1 in its unfolded, natural state. The cooling agent 26, which is positioned on the crotch side relative to the upper and lower folds BL of the absorbent article 1 in its unfolded, natural state, is sandwiched between the upper and lower folds BL and the crotch portion 10m in the folded state. This reduces the risk of the cooling agent 26 leaking outside the absorbent article 1, further reducing the amount of cooling agent 26 that leaks outside the individual packaging 100.

[0120] In addition, it is preferable that, in the absorbent article 1 in the unfolded and natural state, the cooling agent 26 is provided inside the left and right folded portions LB and RB, and the left and right folded portions LB and RB are provided outside the absorbent body 22 in the left and right direction. Figure 6 As shown in FIG. 1 , the left and right folds LB and RB of the absorbent article 1 are positioned on the outside of the absorbent body 20 in the left-right direction. Therefore, it is apparent that the left and right folds LB and RB are positioned outside the absorbent body 22. In the folded state of the absorbent article 1, folding at the left and right folds LB and RB reduces the path for the cooling agent 26, which is positioned inside the left and right folds LB and RB in the left-right direction, to flow out of the leg openings 1b. This reduces the risk of the cooling agent 26 flowing outside the absorbent article 1, thereby reducing the amount of cooling agent 26 that flows outside the individual packaging 100.

[0121] like Figure 5 As shown in Figures 1 and 2, the independent package 100 in the packaged state has an end joint 103 extending in the left-right direction (orthogonal direction). As described above, in order to make the independent package 100 enter a sealed state, end joints 103a and 103b for joining the parts of the packaging member 101 to each other are provided at both ends in the up-down direction (folding direction). Preferably, on the inner side of the packaging member 101 of the independent package 100, when the absorbent article 1 is arranged in the central part in the up-down direction of the independent package 100, the longest distance between the folding portion LC1 on one side and the absorbent article 1 is shorter than the longest distance between the end joint 103a (or 103b) and the absorbent article 1. For example, as Figure 5As shown, inside the individual package 100, when the absorbent article 1 is positioned at the center of the individual package 100 in the vertical direction, the longest distance from the side LC1 to the absorbent article 1 in the left-right direction is shorter than the longest distance X from the end joint 103a (or 103b) to the absorbent article 1 in the vertical direction. In this embodiment, in the vertical direction, the end joint 103a (103b) is separated from the absorbent article 1 by a predetermined distance (the longest distance X). In the left-right direction, however, the one-side folded portion LC1 and the absorbent article 1 are in contact with or close to each other, and the distance between the one-side folded portion LC1 and the absorbent article 1 is extremely short and close to zero. Therefore, when the absorbent article 1 is positioned at the center of the individual package 100 in the vertical direction, it is apparent that the longest distance between the one-side folded portion LC1 and the absorbent article 1 is shorter than the longest distance X between the end joint 103a and the absorbent article 1. Therefore, compared to a case where the longest distance between the one-side folded portion LC1 and the absorbent article 1 is longer than the longest distance X between the end joint 103a and the absorbent article 1, the space between the one-side folded portion LC1 and the absorbent article 1 in the left-right direction can be further reduced. This makes it possible to further reduce the circulation of air that promotes the volatilization of the cooling agent 26, and to reduce the amount of the cooling agent 26 that flows out of the absorbent article 1 through the leg opening 1b into the packaging member 101, making it easy to reduce the amount of the cooling agent 26 that flows out of the packaging member 101 (individual package 100).

[0122] Note that in Figure 5 etc., it has been explained that, when the absorbent article 1 is arranged at the center portion in the vertical direction of the individual package 100, the longest distance between the one side folded portion LC1 and the absorbent article 1 is shorter than the longest distance X between the end joint 103a (103b) and the absorbent article 1. However, even when the absorbent article 1 is arranged at any position in the vertical direction of the individual package 100, the longest distance between the one side folded portion LC1 and the absorbent article 1 is made shorter than the longest distance X between the end joint 103a (103b) and the absorbent article 1, and this reduces the amount of the cooling agent 26 that flows out of the absorbent article 1 through the leg opening 1b into the packaging member 101, making it easy to reduce the amount of the cooling agent 26 that flows out to the outside of the packaging member 101 (individual package 100).

[0123] As described above, the absorbent article 1 of the independent package 100 in the packaged state is in a folded state (the absorbent article 1 is folded at the upper and lower folding portions BL and the left and right folding portions LB and RB). In addition, the independent package 100 in the packaged state has an inner joint 102, and the inner joint 102 is arranged on the inner side of the one side folding portion LC1 (the other side folding portion LC2) in the left-right direction (orthogonal direction). The inner joint 102 extends in the up-down direction (folding direction). Preferably, in the front-to-back direction of the absorbent article 1, the inner joint 102 is arranged at a position closer to the crotch 10m than to the waist opening 1a. That is, as described above (see Figures 10 to 12 ), the following structure is preferred: the packaging member 101 has two surfaces in the thickness direction, namely, a surface without the inner joint 102 and a surface with the inner joint 102; the surface without the inner joint 102 is located on the waist portion 10f and 10b side; the surface with the inner joint 102 is located near the crotch portion 10m.

[0124] Generally, in a shorts-type sanitary napkin (underwear-type absorbent article) such as the absorbent article 1, the crotch portion 10m is provided with an absorbent body 22 in order to absorb excrement. Generally, the rigidity of the absorbent body 22 is higher than the rigidity of the portion (waist portion 10f and 10b) provided with the waist opening 1a. Therefore, by arranging the inner joint 102 at a position close to the crotch portion 10m in the thickness direction, the inner joint 102 is formed in a more stable state, making it easier to increase the bonding strength of the inner joint 102. In addition, in the thickness direction, by arranging the waist opening 1a near the surface where the inner joint 102 is not provided, the risk of the cooling agent 26 flowing out of the waist opening 1a flowing out to the outside of the independent package 100 through the inner joint 102 can be reduced.

[0125] In addition, if Figure 5 As shown in FIG. 1 , it is more preferred that, in the individual package 100 in the packaged state, the absorbent article 1 in the folded state is in the following state: the length N from the upper and lower folded portions BL to the waist opening 1a (the upper end of the absorbent article 1 in its natural state) in the vertical direction is equal to or longer than the length M from the upper and lower folded portions BL to the end of the crotch 10m (the lower end of the absorbent article 1 in its natural state) (N ≥ M). By folding the absorbent article 1 in the vertical direction, the leg opening 1b can be more widely and more reliably covered by the portion located on the waist opening 1a side relative to the upper and lower folded portions BL. Therefore, the risk of the cooling agent 26 flowing out of the leg opening 1b can be reduced.

[0126] In the individual package 100, it is preferable that the bond strength between the various components of the packaging member 101 in the inner joint 102 is higher than the bond strength between the various components of the packaging member 101 in the one-side end joint 103a and the other-side end joint 103b. Before opening the individual package 100, since the bond strength of either the one-side end joint 103a or the other-side end joint 103b is lower than the bond strength of the inner joint 102, the wearer is more likely to separate the bond between the packaging members 101 in the end joints 103a and 103b than if the bond strength of the end joints 103a and 103b were higher than the bond strength of the inner joint 102. On the other hand, since the bond strength of the inner joint 102 is higher than the bond strength of the end joints 103a and 103b, the risk of separation of the bond between the packaging members 101 in the inner joint 102 is reduced compared to if the bond strength of the inner joint 102 is lower than the bond strength of the end joints 103a and 103b. Therefore, the packaging member 101 of the opened individual package 100 can be easily kept in the open bag shape with either the end joints 103a and 103b opened. The bag-shaped packaging member 101 can be used for storing and carrying the absorbent article 1 after use, disposing of the absorbent article 1, etc.

[0127] Note that the "joining strength" between the parts of the packaging member 101 in the inner joint 102 and the end joints 103a and 103b is the force per unit area of ​​the joint between the parts of the packaging member 101 in each of the joints 102 and 103 for separating (releasing) the individual package 100. That is, the joining strength and the separation strength (release strength) have the same force magnitude.

[0128] The specific method for measuring the bonding strength is as follows. First, samples 1 and 2 with the same area are cut out from the independent package 100 to be measured. Sample 1 is a part of the packaging member 101 provided with an inner joint 102, and sample 2 is a part of the packaging member 101 provided with end joints 103a and 103b. Next, sample 1 or sample 2 is set on the upper and lower chucks of the tensile testing machine (for example, Instron series 5564 manufactured by Instron Co., Ltd.). Thereafter, the upper and lower chucks are separated from each other at a predetermined tensile rate (for example, 300mm / min), pulling samples 1 and 2. The maximum load (N) before the chuck separation distance is increased is obtained. For each of samples 1 and 2, n (for example, 10) measurement results are obtained, and the average value of the n maximum loads (N) is calculated. The average value (N) of sample 1 is defined as the bonding strength of the inner joint 102, and the average value (N) of sample 2 is defined as the bonding strength of the end joints 103a and 103b, and the two values ​​can be compared. Note that the bonding strengths in the following description can be compared using similar measurement methods.

[0129] Furthermore, the following configuration is preferred: in the packaged state, the end joints include a first end joint 103a and a second end joint 103b located at one end and the other end of the absorbent article 1 in the vertical direction, respectively; the first end joint 103a has a higher joining strength than the second end joint 103b; and the waist opening 1a of the absorbent article 1 is provided on one side in the vertical direction. In the folded state of the absorbent article 1, since the waist opening 1a is open to the inside of the absorbent article 1, the cooling agent 26 is more likely to volatilize than on the upper and lower folded portions BL of the absorbent article 1. Therefore, in a case where the bonding strength of the one side end bonding portion 103a is higher than the bonding strength of the other side end bonding portion 103b, if the waist opening 1a points to the side of the one side end bonding portion 103a with higher bonding strength, the risk of the cooling agent 26 leaking from the waist opening 1a flowing out to the outside of the independent package 100 through the one side end bonding portion 103a can be reduced compared to the case where the waist opening 1a is located on the other side in the up and down directions.

[0130] <Individual Package 110 in Packaged State According to Another Embodiment>

[0131] An individual package 110 according to another embodiment will be described. Figure 13A is a plan view of an independent package 110 according to another embodiment. In the following independent package 110, components having the same structure as the independent package 100 of the above embodiment are indicated by the same reference numerals, etc., and their detailed description will not be repeated. In the above embodiment, the risk of the cooling agent 26 to be discharged from at least one leg opening 1b to the outside of the absorbent article 1 flowing out to the outside of the independent package 100 (packaging member 101) is reduced. In comparison, the independent package 110 reduces the risk of the cooling agent 26 to be discharged from the waist opening 1a to the outside of the absorbent article 1 flowing out to the outside of the independent package 110.

[0132] like Figure 13 As shown in Figure 1A, in the individual package 110, the left-right direction of the absorbent article 1 coincides with the folding direction of the packaging member 101, the top-bottom direction of the absorbent article 1 coincides with a direction perpendicular to the folding direction of the packaging member 101, and the front-back direction of the absorbent article 1 coincides with the thickness direction of the packaging member 101. Furthermore, the method for packaging the individual package 110 using the packaging member 101 is substantially the same as the packaging method for the individual package 100 described above. However, the inner joint 102 of the individual package 110 extends along the left-right direction of the absorbent article 1 (the folding direction of the packaging member 101), and the end joints 103a and 103b extend along the top-bottom direction of the absorbent article 1 (the direction perpendicular to the packaging member 101). In other words, the absorbent article 1 housed in the individual package 110 is the absorbent article 1 housed in the individual package 100 in its folded state, rotated 90 degrees.

[0133] Similar to the above embodiment, in the individual package 110, the absorbent article 1 including the cooling agent 26 is packaged using the packaging member 101, which includes a side folded portion LC1 in a folded state (the absorbent article 1 is folded at the left and right folded portions LB and RB and the upper and lower folded portions BL). The oxygen permeability of the packaging member 101 is 200 cc / m 2 / day / atm or less, and one side folded portion LC1 extends along the left-right direction of the absorbent article 1. In addition, the one side folded portion LC1 faces the waist opening 1a of the absorbent article 1.

[0134] The oxygen permeability of the folded portion LC1 extending in the left-right direction of the absorbent article 1 and facing the waist opening 1a is 200cc / m 2The one-side folded portion of the packaging member 101 (less than / day / atm) covers at least a portion of the waist opening 1a, so that the one-side folded portion LC1 can function as a cover to reduce the risk of the cooling agent 26 flowing out of the waist opening 1a from flowing out to the outside of the individual package 110. By reducing the risk of the cooling agent 26 flowing out of the waist opening 1a from flowing out of the individual package 110, the risk of the amount of cooling agent 26 remaining in the individual package 110 being reduced is reduced, making it easier for the wearer to feel the effect of the cooling agent 26 when opening the individual package 110 or when wearing the absorbent article 1.

[0135] <Individual Package 120 in Packaged State According to Yet Another Embodiment>

[0136] An individual package 120 according to still another embodiment will be described. Figure 13 B is a plan view of an individual package 120 according to yet another embodiment. In the following individual package 120, components having the same configuration as the individual package 100 of the above embodiment are denoted by the same reference numerals and the like, and detailed description thereof will not be repeated.

[0137] In the above embodiment, a portion of the folded portion of the one side extension 10L and a portion of the folded portion of the other side extension 10R overlap each other in the thickness direction (front-rear direction), but the configuration is not limited thereto. Figure 13 As shown in FIG. 2 , the portion of the one side extension 10L and the portion of the other side extension 10R folded at the folding reference positions B1 and B2, respectively, are folded so as not to overlap each other in the thickness direction. Therefore, the oxygen permeability is 200 cc / m 2 The folded portions LC1 and LC2 of the packaging member 101 of less than / day / atm make it possible to reduce the amount of cooling agent 26 flowing out through the leg openings 1b to the outside, while also reducing the thickness of the absorbent article 1 in the folded state, making the individual package 100 more compact.

[0138] <<<Packaging body 200>>>

[0139] The plurality of individual packages 100 may be sold and distributed in the form of a package 200 in which the plurality of individual packages 100 are housed in a bag 201 . Figure 14 A is a schematic perspective view of the package body 200 . Figure 14 B is an explanatory diagram illustrating the package 200 when viewed from the side surface 200C.

[0140] like Figure 14As shown in FIG. 1A , the package 200 includes a plurality of individual packages 100, a bag 201 for accommodating the plurality of individual packages 100, and a handle 202 for carrying the package 200. The package 200 has vertical, horizontal, and front-to-back directions that are orthogonal to one another. Furthermore, the package 200 has a generally rectangular shape. The package 200 includes a front face 200A and a back face 200B that face each other in the front-to-back direction, a pair of side faces 200C that face each other in the left-to-right direction, and a top face 200D and a bottom face 200E that face each other in the top-to-bottom direction.

[0141] The bag 201 is a bag-shaped member formed of a sheet-shaped member. It is preferable that the bag 201 has gas impermeability and has a 200cc / m 2 / day / atm or less. As the bag 201, a sheet member made of, for example, ethylene-vinyl alcohol copolymer resin (EVOH resin), polyethylene terephthalate (PET), aluminum, etc. can be used. In this embodiment, the bag 201 is made of a polyester (PET) sheet member.

[0142] As described above, by using the gas-impermeable bag 201, while reducing the risk of the cooling agent 26 leaking out of the individual package 100, even if the cooling agent 26 leaks out of the individual package 100, the risk of the cooling agent 26 leaking out to the outside through the bag 201 can be reduced. As a result, when opening the package 200 and the individual package 100 or when wearing the absorbent article 1, the wearer can easily feel the effect of the cooling agent 26.

[0143] Note that it is preferable that the oxygen permeability of the packaging member 101 of the individual package 100 is lower than that of the bag 201 of the package body 200. As described above, the oxygen permeability of the packaging member 101 of the individual package 100 is 2.0 cc / m 2 / day / atm, the oxygen permeability of the bag 201 of the package 200 is 80cc / m 2 / day / atm. Therefore, compared to a case where the oxygen permeability of the packaging member 101 is higher than that of the bag 201, it is easier to reduce the amount of cooling agent 26 that leaks out of the individual package 100. This facilitates the retention of the cooling agent 26 within the individual package 100 and also reduces the amount of cooling agent 26 present both outside the individual package 100 and inside the bag 201. Consequently, volatilization of the cooling agent 26 is reduced, making it easier for the wearer to experience the effects of the cooling agent 26.

[0144] In the individual package 100, the left and right ends of the folded absorbent article 1 are covered by the folded portions LC1 and LC2 of the packaging member 101, while the top and bottom ends of the folded absorbent article 1 are joined at the end joints 103a and 103b. Therefore, the cooling agent 26 may flow out of the end joints 103a and 103b, rather than the folded portions LC1 and LC2. In particular, there is a risk that the cooling agent 26 may flow out of the other end joint 103b, where the joint strength is lower than that of the other end joint 103a.

[0145] On the other hand, the independent package 100 includes a one side end joint 103a and an other side end joint 103b at one side end and the other side end in the up-down direction of the absorbent article 1, respectively. The joining strength of the one side end joint 103a is higher than the joining strength of the other side end joint 103b. The following structure is preferred: the independent package 100 is housed in such a manner that the up-down direction of the package body 200 is consistent with the up-down direction of the absorbent article 1; and the other side end joint 103b is in contact with the bottom surface of the bag 201 (bottom surface 200E of the package body 200). That is, in this embodiment, as Figure 14 As shown in FIG. 2B , two individual packages 100 are stacked and stored vertically. Furthermore, the vertical direction of the package body 200 and the end joints 103a and 103b are perpendicular to each other. Furthermore, the other end joint 103b (whose bonding strength is weaker than that of the one end joint 103a of the individual package 100) stored on the lower side contacts the bottom surface 200E.

[0146] The packaging member 101 is a soft sheet-like member, so the portion outside the end joints 103a and 103b in the vertical direction of the individual package 100 is less rigid than the end joints 103a and 103b and is softer. Figure 14In the case shown in B, the individual packages 100 are stored so that the vertical direction of the package body 200 aligns with the vertical direction of the absorbent article 1. In this case, in the individual package 100 stored at the bottom of the package body 200, the portion located below the other-side end joint 103b bends in the left-right direction of the package body 200 (the thickness direction of the individual package 100) due to the weight of the two individual packages 100, making it easier for the other-side end joint 103b to contact the bottom surface 200E. Even if the bonding strength of the other-side end joint 103b of the individual package 100 is weaker than that of the one-side end joint 103a, the other-side end joint 103b contacts the bottom surface 200E. This makes it difficult for a gap to form between the other-side end joint 103b and the bottom surface of the bag body 201, thereby reducing the risk of the cooling agent 26 leaking out of the individual package 100 from the other-side end joint 103b.

[0147] The configuration in which multiple individual packages 100 are housed in the package body 200 has been described. However, the configuration is not limited thereto. A configuration in which one individual package 100 is housed in the package body 200 may also be employed. Furthermore, a configuration in which the package body 200 houses multiple (or one) individual packages 110 may also be employed.

[0148] ===Other Implementation Methods===

[0149] The above embodiments have been described in order to facilitate understanding of the present invention, rather than to interpret the present invention in a limited manner. The present disclosure may be variously changed or modified without departing from the gist thereof, and encompasses its equivalents.

[0150] In the above embodiment, the independent package 100 is constructed so that the packaging member 101 includes a folding portion LC1 on one side and a folding portion LC2 on the other side. However, the construction is not limited to this. The independent package 100 can be constructed so that the packaging member 101 has only one folding portion, or the independent package 100 can be constructed so that the packaging member 101 has three or more folding portions. In addition, the independent package 100 does not necessarily have to have the inner joint 102, and the inner joint 102 does not necessarily have to be the center portion in the orthogonal direction. For example, the inner joint 102 can be provided at the other side end in the orthogonal direction.

[0151] In the above embodiment, the absorbent article 1 in its folded state is folded at the left and right folding portions LB and RB and the upper and lower folding portions RB. However, the structure is not limited to this. For example, the absorbent article 1 in its folded state may be folded at the left and right folding portions LB and RB, but not at the upper and lower folding portions RB. Alternatively, the absorbent article 1 in its folded state may be folded at the upper and lower folding portions RB, but not at the left and right folding portions LB and RB. Alternatively, a structure may be employed in which only one of the left and right folding portions LB or the left and right folding portions RB is folded.

[0152] In the above embodiment, in the independent package 100 in the packaging state, the absorbent article 1 in the folded state is in the following state: the length N from the upper and lower folding parts BL to the waist opening 1a in the up and down direction is equal to or longer than the length M from the upper and lower folding parts BL to the end of the crotch 10m (N≥M). However, the structure is not limited to this. In the independent package 100 in the packaging state, in the up and down direction, the length from the upper and lower folding parts BL to the end of the crotch 10m can be longer than the length from the upper and lower folding parts BL to the waist opening 1a (M>N). Note that at this time, it is more preferred that, in the thickness direction of the independent package 100 (the front and back direction of the absorbent article 1), the inner joint 102 is arranged at a position closer to the crotch 10m than to the waist opening 1a. Therefore, the crotch 10m can cover the waist opening 1a, and the waist opening 1a can be sandwiched between the crotch 10m and the packaging member 101. This makes it possible to reduce the risk of the cooling agent 26 flowing out of the waist opening 1a.

[0153] In the above embodiment, a cooling agent that stimulates the thermosensitive TRP channel is used as the cooling agent 26, but the configuration is not limited thereto. As the cooling agent 26, a cooling agent that lowers the ambient temperature by vaporization heat can be used, for example, alcohol such as methanol or ethanol.

[0154] In the above embodiment, cooling agent 26 is used as an example of a volatile substance. However, there is no limitation on the use of cooling agent 26, and other volatile substances such as warming agents and fragrances may be used. Fragrances may be used in place of cooling agent 26, or in combination with cooling agent 26 or a warming agent.

[0155] In particular, when the fragrance is a green herb-type fragrance (green herb-type aroma), the fragrance can safely and easily relieve mental anxiety without causing physical stimulation to the body and without the need for oral administration. In addition, the fragrance can provide a sense of comfort.

[0156] In the case of using a warming agent, the cold and menstrual pain felt by the wearer can be reduced. From the viewpoint of the wearer's sense of security, it is preferred that the warming stimulant is a compound derived from a plant. Examples of warming agents include capsaicin, capsaicin (LD50: 47 mg / kg, molecular weight: 305), capsaicinoids (dihydrocapsaicin, nordihydrocapsaicin, homodihydrocapsaicin, homocapsaicin, norvanillin, etc.), capsanthin, benzyl nicotinate (LD50: 2188 mg / kg, molecular weight: 213), nicotinic acid β-butoxyethyl ester, N-acyl vanillamide, nonanoic acid vanillamide, polyols, chili powder, chili tincture, chili extract, nonanoic acid vanillin, vanillin alkyl ether derivatives (such as Such as vanillyl ethyl ether, vanillyl butyl ether) (LD50: 4,900 mg / kg, molecular weight: 210), vanillyl amyl ether, vanillyl hexyl ether), isovanillyl alcohol alkyl ether, ethyl vanillyl alcohol alkyl ether, resveratrol derivatives, substituted benzyl alcohol derivatives, substituted benzyl alcohol alkyl ethers, vanillin propylene glycol acetal, ethyl vanillin propylene glycol acetal, ginger extract, ginger oil, gingerol (LD50: 250 mg / kg, molecular weight: 294), zingerone, hesperidin and pyrrolidone carboxylic acid and any combination thereof. Similar to the cooling agent 26, it is preferred that the warming agent is a substance that stimulates the thermosensitive TRP channel.

[0157] Flavoring agents similar to those traditionally used in the art can be used. When the flavoring agent is a green herbal flavoring agent (green herbal fragrance), the flavoring agent can safely and easily relieve mental anxiety without causing physical stimulation or requiring oral ingestion. Furthermore, the flavoring agent can provide a sense of comfort.

[0158] Green herbal scents are a type of scent that includes green scents (green tones) and herbaceous scents (herbaceous notes). Green scents represent fresh scents such as grass or young leaves. Herbaceous scents (herbaceous notes) are scents that use herbs and have natural, herbaceous notes.

[0159] The fragrance composition containing a fragrance having a green herb-like aroma preferably contains one or more fragrances selected from cis-3-hexenol, cis-3-hexenecarboxylate, cis-3-hexeneacetate, cis-3-hexenepropionate, cis-3-hexenebutyrate, trans-2-hexenal, trans-2-hexeneacetate, hexyl acetate, styrene acetate, 2-methyl-3-(3,4-methylenedioxyphenyl)-propionaldehyde (IFF name: Helional), 3(4)-(5-ethylbicyclo[2,2,1]heptyl-2)-cyclohexanol, 2-pentoxyallylglycolic acid (IFF name: Allylpentylglycolate), 4-methyl-3-decen-5-ol (Givaudan name: Undecavertol), hexanal, 2,4-dimethyl-3-cyclohexenylcarboxaldehyde (IFF name: Triplal) and phenylacetaldehyde. Such fragrances can be used in commercial products. A fragrance comprising at least one of the fragrances listed above produces primarily green-type aromas.

[0160] The fragrance composition containing a fragrance having a green herbaceous aroma preferably further contains one or more fragrances selected from l-menthol, 1,8-cineole, methyl salicylate, citronellal, camphor, borneol, isobornyl acetate, terpineol acetate, eugenol, anethole, 4-methoxybenzyl alcohol, and estragole. The fragrance containing at least one fragrance listed above mainly produces a herbaceous aroma.

[0161] Reference designator list

[0162] 1: Absorbent articles (underwear absorbent articles, shorts sanitary napkins),

[0163] 1a: Open waist,

[0164] 1b: Leg opening,

[0165] 10: Exterior body,

[0166] 10f: ventral waist,

[0167] 10b: back waist,

[0168] 10m: Crotch,

[0169] 10e: side end joint,

[0170] 10ff: ventral reentry,

[0171] 10bf: dorsal fold,

[0172] 10L: One side extension,

[0173] 10R: extension on the other side,

[0174] 11: External top piece,

[0175] 12: Exterior back sheet,

[0176] 13: Elastic member at the ventral waist,

[0177] 14: Back waist elastic member,

[0178] 20: Absorbent body,

[0179] 22: absorber,

[0180] 22a: core packaging sheet,

[0181] 24a: First skin side panel,

[0182] 24b: Second skin side panel,

[0183] 24c: non-skin side panels,

[0184] 24d: side panels,

[0185] 26: cooling agent (volatile substance),

[0186] 26P: coating area,

[0187] 30: Crotch elastic member,

[0188] 40: compression part,

[0189] 50: three-dimensional pleats,

[0190] 50S: elastic member,

[0191] 100: Individually packaged items,

[0192] 101: Packaging components,

[0193] 102: inner joint,

[0194] 103a: One side end joint,

[0195] 103b: The other end joint portion,

[0196] 200: packaging body (packaging body of individual packaging pieces of underwear type absorbent articles),

[0197] 201: bag,

[0198] B1: Folding reference position,

[0199] B2: Folding reference position,

[0200] B3: Folding reference position,

[0201] BL: upper and lower folding parts,

[0202] LB: One side fold (left and right fold),

[0203] RB: The other side fold (left and right fold),

[0204] L1: first folding reference position,

[0205] L2: second folding reference position,

[0206] LC1: One side folded part,

[0207] LC2: the other side fold,

[0208] CL: Fold Line

Claims

1. An individual package of a panty-type absorbent article, comprising: A pant-type absorbent article having a waist opening and a pair of leg openings, and having up-down, left-right, and front-back directions orthogonal to one another when the pant-type absorbent article is in an unfolded state; and a packaging member that packages one of the pant-type absorbent articles, The volatile substance is arranged on the inner side of the underwear type absorbent article, The oxygen permeability of the packaging member is 200cc / m 2 / day / atm or less, In the packaging state, The underpants-type absorbent article is folded at a folded portion extending in either the up-down direction or the left-right direction. The packaging member has at least one folding portion, and The folded portion extends along the up-down direction of the panty-type absorbent article. The packaging member has end engaging portions for engaging respective portions of the packaging member with each other. The end joining portion extends along the left-right direction of the underwear-type absorbent article, The end joint portion includes a one-side end joint portion and an other-side end joint portion, The one side end joining portion is located at an end portion of the packaging member on one side in the up-down direction of the underpants-type absorbent article. The other side end portion joining portion is located at the other end portion of the packaging member in the up-down direction of the underpants-type absorbent article. The bonding strength of the one end bonding portion is higher than the bonding strength of the other end bonding portion, and The waist opening is provided on the one side in the up-down direction.

2. The individual package of a panty-type absorbent article according to claim 1, wherein: The pant-type absorbent article is folded at upper and lower folded portions extending along the left-right direction, and The volatile material is provided at a position closer to the crotch than the upper and lower folded portions in the vertical direction in the unfolded, natural state of the pull-on absorbent article.

3. The individual package of a panty-type absorbent article according to claim 1 or 2, wherein: The underpants-type absorbent article comprises an absorbent body, The pant-type absorbent article is folded at left and right folded portions extending in the up-down direction, and In the pant-type absorbent article in its unfolded and natural state, The left and right folded portions are provided on the outside of the absorbent body in the left and right direction, and The volatile material is disposed on the inner sides of the left and right folded portions in the left and right directions.

4. The individual package of a panty-type absorbent article according to claim 1 or 2, wherein: In the packaging state, The packaging component comprises: Along the direction in which the folded portion extends, a direction perpendicular to the direction extending along the folded portion, and a thickness direction perpendicular to the direction extending along the folded portion and the perpendicular direction, The end joint extends along the orthogonal direction, and When the panty-type absorbent article is arranged at a specific position of the packaging member, A longest distance between the folded portion and the pant-type absorbent article is shorter than a longest distance between the end junction and the pant-type absorbent article.

5. The individual package of a panty-type absorbent article according to claim 1 or 2, wherein: In the packaging state, The packaging component comprises: Along the direction in which the folded portion extends, a direction perpendicular to the direction extending along the folded portion, and a thickness direction perpendicular to the direction extending along the folded portion and the perpendicular direction, The packaging member has a joint portion for joining parts of the packaging member to each other. The joint portion includes the end joint portion and an inner joint portion, The end engaging portion is a portion extending along the orthogonal direction and provided at an end of the packaging member, The inner joining portion is a portion extending along the folded portion and provided inside the folded portion in the orthogonal direction, and The inner joint portion has a higher joint strength than the end joint portion.

6. The individual package of a panty-type absorbent article according to claim 1 or 2, wherein: The pant-type absorbent article is folded at upper and lower folded portions extending along the left-right direction, and In the packaging state, In the up-down direction of the underwear-type absorbent article, The length from the upper and lower folded parts to the waist opening is equal to or longer than the length from the upper and lower folded parts to the end of the crotch.

7. The individual package of a panty-type absorbent article according to claim 1 or 2, wherein: The pant-type absorbent article is folded at upper and lower folded portions extending along the left-right direction, and In the packaging state, In the up-down direction of the underwear-type absorbent article, The length from the upper and lower folded portions to the end of the crotch portion is longer than the length from the upper and lower folded portions to the waist opening.

8. A packaging body for individually packaging a pant-type absorbent article according to any one of claims 1 to 7, The packaging body comprises: a plurality of individual packages of the pant-type absorbent article; and a bag for accommodating the individual package of the panty-type absorbent article, The oxygen permeability of the bag is 200cc / m 2 / day / atm or less.

9. The packaging body for the individual packaging piece of the underpants-type absorbent article according to claim 8, wherein: The packaging member has an oxygen permeability lower than that of the bag.

10. The packaging body for the individual packaging piece of the underwear type absorbent article according to claim 8, wherein: In the packaging state, The packaging member has end engaging portions for engaging respective portions of the packaging member with each other. The end joining portion is a portion extending along the left-right direction of the underpants-type absorbent article and provided at an end portion of the packaging member. The end joint portion includes a one-side end joint portion and an other-side end joint portion, The one side end joining portion is located at an end portion of the packaging member on one side in the vertical direction of the underpants-type absorbent article. The other side end joining portion is located at the other end of the packaging member in the up-down direction of the underwear-type absorbent article; The bonding strength of the one end bonding portion is higher than the bonding strength of the other end bonding portion, and In a state where the individual package of the underpants-type absorbent article is housed in the bag, The up-down direction of the pant-type absorbent article coincides with the up-down direction of the packaging body of the individual packaging piece for the pant-type absorbent article, and The other-side end joint is in contact with the bottom surface of the bag.

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