JP2020146458A - Individual package for absorbent article - Google Patents

Abstract

To provide an individual package for absorbent article in which a release sheet is interposed between an absorbent article with a wide width part and an individual package sheet, in which the absorbent article can be easily peeled from the release sheet with the wide width part as an origin.SOLUTION: There is provided an individual package 10 of an absorbent article comprising: an individual package sheet 11; one or more release sheets whose one surface is fastened to the individual package sheet 11; and an absorbent article 1 which is detachably fastened to the other surfaces of the one or more release sheets. The absorbent article 1 comprises a wide width part 20 on a front or rear side of a longitudinal direction DL, the wide width part 20 has both end parts in a width direction DW where a width direction end part release sheet is arranged respectively. When the width direction end part release sheet is released from the individual package sheet 11 toward a width direction DW, a peel intensity is larger than a peel intensity when the absorbent article 1 is detached from the width direction end part release sheets toward the width direction DW, in the individual package 10 of the absorbent article.SELECTED DRAWING: Figure 3

Description

The present invention relates to an individual package of an absorbent article.

An individually wrapped body of an absorbent article including an absorbent article having a functional layer having a functional agent and an individual wrapping sheet is known. For example, Patent Document 1 describes an individually packaged body of an absorbent article including an absorbent body, an absorbent article provided with a functional layer, and an individual package sheet fixed to the non-skin facing surface side of the absorbent article. Is disclosed.

Utility Model Registration No. 3213494

In the individual packaging of the absorbent article, a release sheet may be interposed between the absorbent article and the individual packaging sheet in order to make the absorbent article removable from the individual packaging sheet. In this case, an adhesive portion made of a hot melt adhesive or the like is formed between the absorbent article and the release sheet and between the release sheet and the individually wrapped sheet. When the absorbent article is separated from the release sheet, it is necessary to configure the release sheet so that the release sheet does not separate from the individually wrapped sheet, and to easily separate the absorbent article from the release sheet.
Here, in the individual package of the absorbent article described in Patent Document 1, the functional layer is provided on either the front side or the rear side in the longitudinal direction of the absorbent article from the region where the absorber is provided. There is. The end of the absorbent article on the side where the functional layer is arranged is wider than the other parts, and in order to fix this wide part to the individual wrapping sheet, the width direction end of the wide part An adhesive portion is provided on the portion. Therefore, in order to effectively peel off the individual packaging sheet from the adhesive portion at the widthwise end of the wide portion, when the widthwise end of the wide portion is to be picked to separate the absorbent article, the absorbent article is absorbent. Since the force is applied in the width direction of the article, it is necessary to configure the release sheet so as to be difficult to peel off from the individually wrapped sheet and the absorbent article to be easily detached from the release sheet against the force in the width direction.
Therefore, according to the present invention, in the individual packaging of the absorbent article in which the release sheet is interposed between the absorbent article having the wide portion and the individual packaging sheet, the absorbent article is separated from the release sheet starting from the wide portion. Provide an easy, individually packaged absorbent article.

In order to solve the above problems, the inventor of the present invention uses an individual wrapping sheet, one or more release sheets whose one surface is fixed to the individual wrapping sheet via the first adhesive portion, and a second adhesive portion. An individual wrapping body of an absorbent article including an absorbent article detachably fixed to the other surface of each of the above-mentioned one or more release sheets via the above-mentioned individual wrapping body in an unfolded state. The absorbent article has a longitudinal direction and a width direction, and the absorbent article has a wide portion on the front side or the rear side in the longitudinal direction, and one or more peelings are performed on both ends of the wide portion in the width direction. The width direction end release sheet constituting the sheet is arranged, and the peel strength when the width direction end release sheet is peeled from the individually wrapped sheet in the width direction is such that the absorbent article is separated from the width direction. Provided is an individual package of an absorbent article, which is larger than the peeling strength when the end peeling sheet is peeled off in the width direction.

According to the present invention, in the individual packaging of the absorbent article in which the absorbent article having the wide portion at the end in the longitudinal direction is fixed to the individual packaging sheet via the release sheet, the absorbent article starts from the wide portion. As a result, it is easy to separate from the individual wrapping sheet.

It is a perspective view which shows the individual package body 10 of the sanitary napkin 1 which concerns on embodiment of this invention, (a) is the perspective view which saw the individual package body 10 from the skin facing surface _SF side, (b). ) is a perspective view of the individual package 10 from the non-skin-facing surface S _B side. It is a top view which looked at the sanitary napkin 1 in the thickness direction _DT from the surface sheet 2 side in the unfolded state. It is a top view which looked at the sanitary napkin 1 in the thickness direction _DT from the back surface sheet 3 side in the unfolded state. Of the sanitary napkin 1 is an end view of a cross-section along the central axis C _L extending in the longitudinal direction D _L in a developed state. It is a perspective view for demonstrating the folding method of the sanitary napkin 1 for forming an individual package body 10. It is a perspective view which shows the individual package body 10 of the sanitary napkin 1 which concerns on embodiment of this invention. It is a top view which shows the individual package body 10. It is a perspective view which shows the forming method of the individual package body 10. It is a schematic diagram which shows the action of the individual package body 10.

The present invention relates to the following aspects.

[Aspect 1]
The individual wrapping sheet, one or more release sheets whose one surface is fixed to the individual wrapping sheet via the first adhesive portion, and the other surface of each of the one or more release sheets via the second adhesive portion. It is an individual package of an absorbent article provided with a detachably fixed absorbent article, and the individual package has a longitudinal direction and a width direction in an unfolded state, and the absorbent article is A wide portion is provided on the front side or the rear side in the longitudinal direction, and widthwise end release sheets constituting the above-mentioned one or more release sheets are arranged at both ends of the wide portion in the width direction. The peeling strength when the width direction end release sheet is peeled from the individually wrapped sheet in the width direction is the peel strength when the absorbent article is separated from the width direction end release sheet in the width direction. Individual packaging of absorbent articles that is greater than the peel strength.

According to the first aspect of the present invention, in the unfolded state of the individual package, the peel strength at the time of peeling the width direction end release sheets arranged at both ends in the width direction of the wide portion from the individual package sheet is determined. It is larger than the peeling strength when the absorbent article is separated from the widthwise end peeling sheet. Therefore, when the widthwise end of the wide portion of the absorbent article is picked and the absorbent article is to be separated from the individually wrapped sheet in the width direction, the individually wrapped sheet is on one side having a large peeling strength. Is difficult to peel off from the release sheet, and the absorbent article is easily separated from the release sheet on the other surface side where the release strength is small. Therefore, when the absorbent article is separated from the individual packaging sheet, the end release sheet in the width direction is used. It is easy to remove the absorbent article from.

[Aspect 2]
The outer edge of the second adhesive portion in contact with the width direction end release sheet is at the same position as or inside the outer edge of the first adhesive portion in contact with the width direction end release sheet. The individually packaged body of the absorbent article according to the first aspect, which is arranged in.

According to the second aspect of the present invention, the widthwise outer edge of the second adhesive portion in contact with the widthwise end release sheet is the widthwise outer edge of the first adhesive portion in contact with the widthwise end release sheet. It is located at the same position or inside it. Therefore, when the wide portion of the absorbent article is picked and the absorbent article is to be separated from the individual packaging sheet, a force for pulling the widthwise end release sheet from the individual packaging sheet via the first adhesive portion is applied. Since it is easier to transmit to the width direction end release sheet than the force of pulling the width direction end release sheet from the absorbent article through the second adhesive portion, the width direction end release sheet is individually wrapped. It is easily pulled to the side and easily remains on the individually wrapped sheet side, and the absorbent article is easily separated from the widthwise end peeling sheet.

[Aspect 3]
The absorbent article comprises an absorber and a functional layer containing a functional agent, the functional layer is arranged in the wide portion, and in the developed state, the functional layer is in the longitudinal direction of the absorber. The individual package of the absorbent article according to the first or second aspect, which is arranged adjacent to one side.

According to a third aspect of the present invention, the absorbent article comprises, in addition to the absorber, a functional layer arranged adjacent to one side in the longitudinal direction of the absorber, which is arranged in a wide portion. Therefore, the dimension of the absorbent article including the wide portion in the longitudinal direction tends to be large. In such an absorbent article, when the wide portion is picked and the absorbent article is peeled off, the absorbent article is easily separated in the width direction, and by applying the present invention, the absorbent article is separated from the individual packaging sheet. It will be easier to make it.

[Aspect 4]
The absorbent article further comprises a liquid permeable surface sheet, and in the deployed state, the ratio of the maximum longitudinal dimension of the surface sheet to the longitudinal maximum dimension of the absorber is the width of the absorber. The individual package of an absorbent article according to the third aspect, which is larger than the ratio of the maximum dimension in the width direction of the surface sheet to the maximum dimension in the direction.

According to a fourth aspect of the present invention, the absorbent article has a longitudinal ratio of the maximum dimension of the surface sheet to the maximum dimension of the absorber (maximum longitudinal dimension of the surface sheet / maximal longitudinal of the absorber). Since the (dimensions) is large compared to its width ratio (maximum width direction of the surface sheet / maximum width direction of the absorber), the surface sheet extends longer in the longitudinal direction and absorbs. The length of the sex article is large, and the shape tends to be longer in the longitudinal direction. By applying the present invention to such an absorbent article, the absorbent article can be easily separated from the individual packaging sheet.

[Aspect 5]
The second adhesive portion in contact with the widthwise end release sheet is divided into a plurality of portions, and the plurality of existing second adhesive portions are arranged substantially parallel to each other along the longitudinal direction. The individual package of the absorbent article according to the third or fourth aspect.

According to the fifth aspect of the present invention, the second adhesive portion in contact with the widthwise end release sheet is divided into a plurality of existing portions, and the plurality of existing second adhesive portions are substantially mutual along the longitudinal direction. It exists in parallel. The individual package of the absorbent article according to the third or fourth aspect of the present invention tends to have a longer longitudinal dimension than the individual package of the normal absorbent article in the unfolded state. Since the adhesive portion is arranged in a stripe shape extending along the longitudinal direction, the absorbent article having a long length in the longitudinal direction can be easily separated from the individual wrapping sheet along the width direction.
Further, after the absorbent article is separated from the widthwise end release sheet, the widthwise end portion of the absorbent article is bent and adhered with the second adhesive portion applied to the absorbent article inside. Even if this is the case, since the amount of the adhesive applied to the second adhesive portion applied to the adhered portion is relatively small, it is easy to peel off the bent adhesive portion of the absorbent article, and as a result, the absorbent article is produced. Easy to separate from the release sheet.

[Aspect 6]
The absorbency according to the fifth aspect, wherein the total area of the second adhesive portion in contact with the width direction end release sheet is 60% or less with respect to the area of the width direction end release sheet. Individual packaging of goods.

According to the sixth aspect of the present invention, the total area of the second adhesive portion in contact with the width direction end release sheet is 60% or less with respect to the area of the width direction end release sheet, and thus absorbs. Even if the widthwise end of the absorbent article is bent and adhered with the second adhesive portion applied to the absorbent article inside after the sex article is separated from the widthwise end release sheet. Since the amount of the second adhesive portion applied to the adhered portion is relatively small, it is easy to peel off the bent adhesive portion of the absorbent article, and as a result, the absorbent article is separated from the individual packaging sheet. easy.

[Aspect 7]
The individual package of an absorbent article according to any one of the first to sixth aspects, wherein the rigidity of the release sheet is larger than the rigidity of the individual package sheet.

According to the seventh aspect of the present invention, when at least a part of the individually packaged sheet and at least a part of the absorbent article are gripped and the absorbent article is separated from each release sheet, each release sheet Is difficult to deform, so even if the absorbent article is deformed, it is difficult for each release sheet to follow such deformation, and the peel strength of the first adhesive portion is stronger than the peel strength of the second adhesive portion. In addition, since it is easy to stay on the individual packaging sheet side, it is easy to separate the absorbent article from the individual packaging sheet and each release sheet.

[Aspect 8]
The longitudinal outer edge of the second adhesive portion, which is arranged at both ends in the longitudinal direction and is in contact with the longitudinal end release sheet constituting the one or more release sheets, is in contact with the longitudinal end release sheet. The individual package of an absorbent article according to any one of the first to seventh aspects, which is arranged at the same position as or inside the outer edge of the first adhesive portion in the longitudinal direction.

According to the eighth aspect of the present invention, the longitudinal outer edge of the second adhesive portion, which is a release sheet arranged at both ends in the longitudinal direction and is in contact with the longitudinal end release sheet, is the longitudinal end portion. Since it is arranged at the same position as or inside the outer edge of the first adhesive portion in the longitudinal direction in contact with the release sheet, it is easy to separate the absorbent article from the individual packaging sheet and the release sheet from the longitudinal direction.

[Aspect 9]
The individual package of the absorbent article according to any one of the first to eighth aspects, wherein the absorbent article has one or more fold lines extending along the longitudinal direction.

According to a ninth aspect of the present invention, generally, when the absorbent article has one or more fold lines extending along the longitudinal direction, the folds extending along the longitudinal direction in the unfolded state of the individual package. Since wrinkles are likely to remain, it is difficult to separate the absorbent article from the individually wrapped sheet in the longitudinal direction. Therefore, by applying the present invention, it becomes easy to separate the absorbent article from the individual packaging sheet.

[Aspect 10]
The individual wrapping body is provided on one end side in the width direction and is folded in the width direction with the first fold line in the longitudinal direction along the longitudinal direction as a base point, and the folded portion in the width direction and the width direction. A second width direction folding portion provided on the other end side and folded in the width direction with the second longitudinal folding line along the longitudinal direction as a base point, the first width direction folding portion, and the second width direction. With the folded portion folded, the first longitudinally folded portion provided on one end side in the longitudinal direction and folded in the longitudinal direction with the first widthwise folding line along the width direction as a base point, and the above With the first width direction folding portion and the second width direction folding portion folded, the longitudinal direction is based on the second width direction folding line provided on the other end side in the longitudinal direction and along the width direction. It has a second longitudinal folding portion that is folded in the direction of the first longitudinal direction, and is located on the opposite side of the first longitudinal direction from the first end portion on the side of the first folding line in the width direction in the first longitudinal folding portion. An adhesive tape having one end bonded to the surface of the two end portions and the other end bonded to the surface of the second longitudinal folding portion is provided, and the first longitudinal folding portion has the adhesive in the width direction. A pair of side portions located on both sides of the tape, an intermediate portion located between the pair of side portions and in contact with at least one of the pair of side portions, and arranged on each of the pair of side portions. The individual package of the absorbent article according to any one of the first to ninth aspects, further comprising a reinforcing member.

When the user grips the individual package in the width direction with one hand, a force may be applied to the individual package from both ends in the width direction toward the center. In that case, when the magnitude of the applied force is too strong, the individual package, and therefore both the first longitudinal folding portion and the second longitudinal folding portion are deformed substantially concavely along the shape of the palm. Can occur. In that case, it may be difficult to pick the adhesive tape well. Therefore, in this individual package, reinforcing members are arranged on each of the pair of side portions located on both sides of the adhesive tape in the first longitudinal folding portion. Therefore, when a force is applied to the first longitudinally folded portion from both ends in the width direction toward the central portion, each side portion including the reinforcing member is not easily deformed, and the intermediate portion not including the reinforcing member is easily deformed. However, since the intermediate portion is fixed to the second longitudinal folding portion with the adhesive tape and is somewhat difficult to deform, the portion near the boundary between the pair of side portions and the intermediate portion is mainly deformed. Specifically, when viewed from the longitudinal direction, the portion of the first longitudinally folded portion near the boundary between the pair of side portions and the intermediate portion is deformed, so that the intermediate portion is used as a base point and the pair of side portions is formed. , The portions corresponding to both ends in the width direction of the individual package stand up to form a substantially V-shape. At this time, the second longitudinally folded portion is deformed in a substantially concave shape, but the rising portion of the outer portion in the width direction is small. Therefore, a gap is generated between each of the second longitudinal folding portion and the pair of side portions. When these gaps occur, the user naturally attempts to peel off the adhesive tape by inserting a finger into one of the gaps, pinching the side portion, and pulling it away from the second longitudinal folding portion. .. Here, since each of the pair of side portions includes a reinforcing member, the force to pull them apart can be easily transmitted to the adhesive tape. As a result, the user can easily open the individual package by inserting a finger into the gap, pinching the side portion, and peeling off the adhesive tape. That is, in an individual package of an absorbent article, it is possible to provide an individual package that is easy to open even when it is gripped by one hand and opened by the other hand. Therefore, this individual package has a feature that it is easy to open with one hand, and it is easy to separate the absorbent article from the individual package sheet after opening, so that it is extremely easy to handle at the start of use and can be quickly attached.

<First Embodiment>
Hereinafter, a first embodiment of an individual package of an absorbent article of the present invention (hereinafter, also simply referred to as “individual package”) will be described in detail with reference to the drawings. In this specification, unless otherwise specified, "an object placed on a horizontal plane (for example, an individual package, an absorbent article, etc.) is viewed from the upper side in the vertical direction in the thickness direction of the object. That is simply called "planar view".

[Various definitions]
Unless otherwise specified, the various directions and the like used in the present specification are as follows.
In the present specification, the "longitudinal direction" is "a long direction of a vertically long object (for example, an individual package, an absorbent article in an unfolded state, various constituent members of the absorbent article, etc.) in a plan view". "Width direction" refers to "the direction in which the length of a vertically long object in a plan view is short", and "thickness direction" refers to "vertical to an object placed on a horizontal plane in an unfolded state". Refers to "directions", and these directions are orthogonal to each other.
In the present specification, the "end" in the longitudinal direction or the width direction means "an object in a plan view (for example, an individual package, an absorbent article in an unfolded state, various constituent members of the absorbent article, etc.)". A portion that fits in 33% of each end in the longitudinal direction or the width direction. "
Further, in the present specification, the "axis located in the center of the vertically long object in the width direction and extending in the longitudinal direction" is referred to as "the central axis in the longitudinal direction", and is "positioned in the center of the vertically long object in the longitudinal direction". The "axis extending in the width direction" is called the "center axis in the width direction".
Further, in the present specification, "in the longitudinal direction of the absorbent article, one side in the longitudinal direction which is relatively proximal to the wearer's abdomen when the wearer wears the absorbent article". It is referred to as the "anterior side of the absorbent article" and is "in the longitudinal direction of the absorbent article, relatively distal to the wearer's abdomen when the wearer wears the absorbent article (ie, the wearer's side). The other side, which is (proximal to the back), is referred to as the "rear side of the absorbent article."
In the present specification, unless otherwise specified, in the thickness direction of the absorbent article in the unfolded state, "when the absorbent article is worn, the position is relatively proximal to the wearer's skin surface". The "surface facing the skin" is referred to as the "skin facing surface", and the "surface located relatively distal to the wearer's skin surface when wearing the absorbent article" is referred to as the "non-skin facing surface".
In addition, in this specification, "user" includes a person who actually wears an absorbent article (that is, a wearer), and a person who wears an absorbent article on another person (for example, a caregiver). ..

[Individual packaging]
Individual package 10 according to an embodiment of the present invention, the individual packaging sheet 11 to the sanitary napkin 1 that is fixed is the longitudinal direction D _L and width as the skin-facing surface S _F of the sanitary napkin 1 is inwardly It is formed by folding in three in each of the directions D _W , and has an outer shape of a flat substantially rectangular parallelepiped as shown in FIG.
As shown in FIG. 1A, the individual wrapping body 10 of the present embodiment has an adhesive arranged on the outer surface of the individual wrapping sheet 11 so as to straddle the opened end of the individual wrapping sheet 11 and other parts. The individually wrapped state of the folded sanitary napkin 1 sealed with the tape 12 is maintained.

The individual package 10 is folded so as to correspond to the longitudinal direction _DL and the width direction D _W of the sanitary napkin 1 in the state where the longitudinal direction _DL and the width direction D _W are expanded, respectively, but in the present invention. , Not limited to such a folding form.

Hereinafter, the absorbent article that can be used for the individual package of the present invention will be described in more detail using the above-mentioned sanitary napkin 1.

[Absorbent article]
FIG. 2 is a plan view of the sanitary napkin 1 viewed from the front surface sheet 2 side in the thickness direction _DT in the unfolded state, and FIG. 3 is a plan view of the sanitary napkin 1 in the unfolded state on the back surface sheet 3 side. It is a plan view seen from the thickness direction _DT . As shown in FIGS. 2 and 3, the sanitary napkin 1 has a vertically long outer shape having a longitudinal direction _DL and a width direction D _W in a plan view, and further, a center of the width direction D _W. Both ends of the width direction D _W of the sanitary napkin 1 project outward at the end of the _{DF on} the front side of the axis C _W, so that the dimension of the width direction D _W becomes the circumference (for example, the width). It became wider as compared to the dimensions of the central axis C _W direction D _W), the wide portion 20 is provided. In the predetermined position of the rear side D _B of the sanitary napkin 1, and each of the one side end and the other end in a width direction D _W of the sanitary napkin 1 toward the outer side in the width direction D _W It has a pair of flap portions 6 and 6 protruding in a substantially trapezoidal shape. Then, in the present embodiment, the individual packaging body 10 of the sanitary napkin has one or more release sheets whose one surface is fixed to the individual packaging sheet 11 via the release sheet adhesive portion 16 in the unfolded state. The sanitary napkin 1 is detachably fixed to the other surface of each of the one or more release sheets via the fixing adhesive portion. As described below, the sanitary napkin 1, in expanded state, the end portion of the front side D _F than the center axis C _W in the width direction D _W, the both end portions in the width direction D _W of the sanitary napkin 1, the outer A wide portion 20 is provided in which the dimension of the width direction D _W becomes wider than the dimension of the periphery (for example, on the first folding line LL ₁ in the width direction described later) by projecting toward the direction. There is. In the present embodiment, the wide portion peeling sheets 13 and 13, which will be described later, provided at both ends of the wide portion 20 in the width direction D _W are peeled off from the individual packaging sheet 11 in the width direction D _W. The strength is higher than the peeling strength when the sanitary napkin 1 is separated from the wide portion peeling sheets 13 and 13 in the width direction D _W. As a result, in the unfolded state, when the widthwise end of the wide portion 20 of the sanitary napkin 1 is picked and the sanitary napkin 1 is to be separated from the individual packaging sheet 11 in the width direction D _W , the peeling strength On one side with a large size, the individual packaging sheet 11 is difficult to peel off from the wide part release sheets 13 and 13, and on the other side with a small peeling strength, the sanitary napkin 1 separates from the wide part release sheets 13 and 13. Therefore, when the sanitary napkin 1 is separated from the individual packaging sheet 11, the sanitary napkin 1 can be easily peeled off from the wide portion peeling sheets 13 and 13.

The peel strength in the present specification is the peel strength measured by a tensile tester "5543" (manufactured by Instron) with a chuck distance of 10 mm to 20 mm, a tensile speed of 100 mm / min, and a width of a test piece as a product width. Say. More specifically, the peel strength between the release sheet and the individually wrapped sheet is absorbable by sandwiching the widthwise end of the release sheet between one chuck and the widthwise end of the individually wrapped sheet between the other chucks. The peel strength between the article and the release sheet refers to the peel strength measured by sandwiching the widthwise end of the absorbent article between one chuck and the widthwise end of the release sheet between the other chucks.

In the present invention, the outer shape of the absorbent article is such that a wide portion 20 is provided at the end of the _{DF on} the front side of the central axis C _{W in} the width direction D _W , or a pair of flap portions 6. , is not limited to the shape having a 6, the end portion of the rear side D _B than the center axis C _W in the width direction D _W, and the shape of the wide portion is provided, a pair of flaps The shape may not have 6 and 6. For example, the present invention is not intended to be limited to the aspects that the wide portion 20 is formed on the front side D _F, the end portion of the rear side D _B of the absorbent article, the wide portion is additionally formed and embodiments are, the rear side D _B of the absorbent article, the end portion in the width direction D _W, the flap portion is formed, the absorption region corresponding to the absorption region 30 of the sanitary napkin 1, and the flap portion, both It also includes a wider aspect (eg, an individual package such as a so-called night sanitary napkin with a hip flap). Further, as the overall shape of the absorbent article, an arbitrary vertically long shape (for example, a rectangle, an ellipse, an hourglass, etc.) can be adopted according to various uses and the like.
Also in the above aspect, by adjusting the positional relationship between the first adhesive portion and the second adhesive portion, the absorbent article can be easily separated from the individual packaging sheet starting from the wide portion.

4, the sanitary napkin 1 is an end view of a cross-section along the central axis C _L extending in the longitudinal direction D _L. Sanitary napkin 1 described above, as shown in FIG. 4, in the thickness direction D _T, a liquid permeable topsheet 2 to form the skin-facing surface S _F of the sanitary napkin 1; of the sanitary napkin 1 Non a liquid impermeable back sheet 3 forming the skin-facing surface S _B; and the absorber 4 of the water-absorbing located between these two sheets; in the wide portion 20 located on the front side D _F of the sanitary napkin 1 A functional layer 21 located between the front surface sheet 2 and the back surface sheet 3 and containing a warming agent as a functional agent is provided as a main constituent member.

Further, the sanitary napkin 1, as shown in FIG. 2, has a pair of side sheets 5 and 5 respectively extending in the longitudinal direction D _L at both ends in the width direction D _W. Furthermore, as shown in FIG. 3, the sanitary napkin 1, in the non-skin-facing side S _B of the backsheet 3, a plurality of each of the other surface of the release sheet, detachably securing the sanitary napkin 1, It has a fixing adhesive portion as the second adhesive portion of the present invention. More specifically, the absorbent body 4 and overlap in the thickness direction D _T and the longitudinal direction D garment fixing adhesive portion 70 arranged in a plurality of strip-shaped form extending in _L; a pair of flap portions 6, 6 located on the front side D _F of the sanitary napkin 1; a plurality of band-shaped form arranged a pair of flaps fixing adhesive portion 71, 71 with extending in the longitudinal direction D _L in the non-skin-facing side S _B of each in both end portions in the width direction D _W at the wide portion 20, a pair arranged in a plurality of strip-like form extending in the longitudinal direction D _L and a front-side bonding portions 72, and includes as a constituent member.

Further, as shown in FIG. 2, the above-mentioned sanitary napkin 1 is in the width direction D _W so as to pass through the longitudinal front side end located at the most anterior side _DF of the sanitary napkin 1 in a plan view. has a forward end virtual line LE _1, and a rear end virtual line LE ₂ extending in the width direction D _W so as to pass through the longitudinal rear end portion located on the rearmost side D _B of the sanitary napkin 1 extending. Furthermore, the sanitary napkin 1 described above, between these front end virtual line LE ₁ and the rear end virtual line LE _2, the functional layer 21 to provide a warming sensation to the wearer at the front side D _F in the longitudinal direction D _L a wide portion 20 that includes, adjacent to the rear side D _B of the wide portion 20, absorbs the liquid excrement such as menstrual blood discharged from the wearer, and a absorption region 30 comprising an absorbent body 4 .. As described above, the sanitary napkin 1 is provided with the functional layer 21 arranged adjacent to the front side of the absorber 4 in addition to the absorber 4, and this is arranged in the wide portion 20, so that the wide portion the dimensions of the longitudinal direction D _L of the sanitary napkin 1 is likely to increase with 20. Such sanitary napkin 1 is not fit the entire length in the longitudinal direction D _L is the palm of the hand, when the user to peel the sanitary napkin 1 from the individual packaging sheet 11, the sanitary napkin by pinching the wide portion 20 There is a tendency for 1 to be peeled off and detached. Therefore, the peeling strength when the wide portion peeling sheets 13 and 13 are peeled from the individually packaged sheet 11 in the width direction D _W , and the sanitary napkin 1 is directed from the wide portion peeling sheets 13 and 13 in the width direction. By adjusting the peeling strength at the time of detachment, the sanitary napkin 1 can be easily peeled off from the wide portion peeling sheets 13 and 13, and the sanitary napkin 1 can be easily detached from the individual packaging sheet 11.

As shown in FIGS. 2 and 4, the functional layer 21 is arranged adjacent to the front side _DF of the absorber 4, and the absorber 4 of the absorption region 30 is located in the wide portion 20. Does not extend beyond the boundaries of. On the other hand, in the absorption region 30, the functional layer 21 of the wide portion 20 extends beyond the boundary of these regions, and further, the portion adjacent to the wide portion 20 in the absorption region 30 is relatively skin-facing. The absorber 4 located on the surface side and the functional layer 21 located relatively on the non-skin facing surface side have an overlapping portion 40 that overlaps in the thickness direction _DT . Since the absorber 4 and the functional layer 21 are partially overlapped in such a form, the overlapping portion 40 has an action of absorbing the liquid excrement discharged from the wearer as a main action. However, in the present invention, the absorber and the functional layer do not have to overlap each other to form an overlapping portion.

The absorption area 30 is adapted to position at a substantially central portion of the absorbent region 30 in the longitudinal direction D _L, provided in a range overlapping with the pair of flap portions 6, 6 and the width direction D _W, the sanitary napkin 1 excretion facing region that faces the wearer's excretory opening when worn and; a front absorbent region adjacent to the front side D _F of the excretion opposing region; rearwardly adjacent the rear side D _B of the excretion portion facing region It can be divided into three regions, the side absorption region.

Then, the sanitary napkin 1 described above, as shown in FIG. 2, in plan view, for three fold the sanitary napkin 1 in the width direction D _W, a first longitudinal extending along a longitudinal direction D _L fold line LW 1 _(phantom) and a second longitudinal fold line LW 2 and _(phantom); for three fold the sanitary napkin 1 in the longitudinal direction D _L, a width direction extending along the widthwise direction D _W It has one fold line LL ₁ (virtual line) and a second fold line LL ₂ (virtual line) in the width direction. The sanitary napkin 1 is folded in three by the _first longitudinal fold line LW ₁ and the second longitudinal fold line LW ₂ so that the skin-facing surface _SF is on the inside together with the fixed individual wrapping sheet 11. After that, it is folded in three by the first fold line LL _{1 in the} width direction and the second fold line LL _{2 in} the width direction to form the above-mentioned individual package 10. Here, in general, the individual packaging body of an absorbent article folded by the folding line, in a deployed state of the individual package, folded wrinkles tend to remain extending along a longitudinal direction D _L. Therefore, if an attempt to disengage the absorbent article from the individual packaging sheet toward the width direction D _W, the so bent is generated in the portion of crease individual packaging sheet, less likely to disengage the absorbent article in the longitudinal direction D _L .. However, in the sanitary napkin 1 of the present embodiment that is folded by such a fold line, the peel strength and absorbency when the wide portion peeling sheets 13 and 13 are peeled from the individually packaged sheet in the width direction D _W. By adjusting the peeling strength when the article is detached from the wide portion peeling sheets 13 and 13 in the width direction D _W , the sanitary napkin 1 can be easily detached in the width direction D _W. Therefore, in the individual package 10 of the sanitary napkin 1 of the present embodiment that is folded in three by the _first longitudinal fold line LW _{1 and} the second longitudinal fold line LW ₂ , the individual package 10 is peeled off in the width direction D _W. It is easier to obtain the effect of adjusting the peeling strength described above.

Such sanitary napkin 1 constructed, when worn, the non-skin-facing side S _B of the sanitary napkin 1, Suit fixing adhesive portion 70, and via a pair of front-side adhesion portions 72 After being attached to the inner surface of the wearer's clothing (for example, underwear, etc.), the pair of flap portions 6 and 6 are folded back to the outer surface side of the clothing, respectively, and the clothing is attached via the pair of flap portion fixing adhesive portions 71 and 71. By sticking it on the outer surface, it is fixed to the wearer's clothes.
In the present invention, having the pair of flap portions is not an indispensable constituent requirement, and therefore, it is not always necessary to have such flap portions depending on the form of the absorbent article and the like.

Hereinafter, various constituent members of the absorbent article that can be used in the individual package of the present invention will be described in more detail using the above-mentioned sanitary napkin 1.

[Surface sheet]
In the sanitary napkin 1, as shown in FIGS. 2 and 4, the surface sheet 2 extends from the anterior end to the posterior end of the sanitary napkin 1 in the longitudinal direction in a plan view, and is physiological. The napkin 1 has a vertically long outer shape extending from one side end portion of the width direction D _{W to} the other side end portion. As shown in FIG. 4, the surface sheet 2 is arranged at a position on the skin facing surface side in the thickness direction _DT of the sanitary napkin 1 and has a contact surface (that is, menstruation) that can come into contact with the wearer's skin surface. It is formed by a liquid-permeable sheet-like member that forms the skin-facing surface S _F ) of the sanitary napkin 1.

Such a liquid-permeable sheet-like member is not particularly limited as long as it has various properties (for example, liquid permeability, touch, flexibility, strength, etc.) that can be used as a surface sheet of an absorbent article. For example, various non-woven fabrics such as air-through non-woven fabric, spunlace non-woven fabric, spunbond non-woven fabric, point-bond non-woven fabric, and porous resin film can be used. Further, the structure of the sheet-like member is not particularly limited, and in addition to the flat non-perforated sheet-like structure, various sheet-like structures such as a flat sheet-like structure having a plurality of openings and an uneven structure can be adopted. ..

When a non-woven fabric is used as the surface sheet, the type of constituent fibers is not particularly limited, and for example, cellulosic fibers or hydrophilic resin fibers subjected to hydrophilic treatment (for example, olefin-based resin subjected to hydrophilic treatment). , Polyester resin, etc.) and other hydrophilic fibers. These fibers may be used alone or in combination of two or more kinds of fibers.

In the present invention, as the outer shape, various dimensions, basis weight, etc. of the surface sheet, any outer shape, various dimensions, basis weight, etc. can be adopted according to desired liquid permeability, touch, flexibility, and the like.

[Absorber]
In the above-mentioned sanitary napkin 1, as shown in FIG. 2, the absorber 4 is a sanitary napkin 1 in which a pair of flap portions 6 and 6 are provided so as to have an excretion opening facing region in a plan view. around the substantially central portion of the region, as well as a wide range extending in the longitudinal direction D _L and the width direction D _W, both ends in the longitudinal direction D _L is an arc toward the outer side in the longitudinal direction D _L, respectively It has a vertically long outer shape that protrudes like this. As shown in FIG. 4, the absorber 4 is arranged between the front surface sheet 2 and the back surface sheet 3 in the thickness direction _DT of the sanitary napkin 1, and is a liquid such as menstrual blood that has permeated the front surface sheet 2. It is formed by a water-absorbing member having predetermined water-absorbing and liquid-retaining properties capable of absorbing and holding excrement.

Such a water-absorbent member is not particularly limited as long as it can absorb and retain liquid excrement such as menstrual blood discharged from the wearer, and any water-absorbent member known in the art is adopted. be able to. Examples of such a water-absorbent member include those in which at least one absorbent core made of an arbitrary water-absorbent material is covered with a hydrophilic core wrap sheet such as a tissue. Here, examples of the water-absorbent material constituting the absorbent core include hydrophilic fibers and highly absorbent polymers, and more specifically, cellulosic fibers such as crushed pulp, cotton, rayon, and acetate; acrylic. Granules made of highly absorbent polymers such as sodium acid copolymers; and mixtures thereof.

Incidentally, the sanitary napkin 1, by having a wide portion 20, relative to the size of the longitudinal direction D _L of the absorber 4, the dimensions of the longitudinal direction D _L of the sanitary napkin 1, a relatively large It has become. Thus, the largest dimension of the longitudinal direction of the absorbent body 4, with respect to the longitudinal direction of the largest dimension of the sanitary napkin 1 becomes relatively small, to the maximum dimension of the longitudinal direction D _L of the absorbent core 4, the topsheet 2 the ratio of the maximum dimension in the longitudinal direction D _L is, to the maximum dimension of the width direction D _W of the absorber 4 becomes larger than the ratio of the largest dimension of the width direction D _W of the topsheet 2. More specifically, the sanitary napkin 1 satisfies the following relational expression.
(Maximum dimension in the longitudinal direction D _L of the largest dimension / absorber 4 in the longitudinal direction D _L of the topsheet 2)> (maximum dimension in the width direction D _W of the maximum dimension / absorber 4 in the width direction D _W of the topsheet 2 )
The surface sheet in the above formula means a single sheet that comes into contact with the wearer's excretion port when the absorbent article is worn, and the absorber means the excretion port contact area and thickness of the absorbent article. It means a single absorber that overlaps in the cloaca direction. Therefore, the dimensions of the surface sheet 2 referred to here do not include the dimensions of the side sheets 5 and 5 described later, and the dimensions of the absorber 4 do not include the dimensions of the functional layer 21.
Satisfy the above relation, the sanitary napkin 1, the topsheet 2 extends longer by longitudinal D _L, size tends to increase in the longitudinal direction D _L of the sanitary napkin 1, the conventional absorbent articles in comparison, tend to be long vertically long shape in the longitudinal direction D _L, but as described later, in the individual packaging body 10 of such sanitary napkin 1, the positional relationship between the fixing adhesive portion and the release sheet bonding portion 16 By adjusting the above, the sanitary napkin 1 can be easily separated from the individual packaging sheet 11. However, the absorbent article of the present invention, to the maximum dimension of the longitudinal direction D _L of the absorber, the ratio of the largest dimension of the longitudinal direction D _L of the topsheet, to the maximum dimension of the width direction D _W of the absorber, the topsheet the ratio of the width direction D _W is not limited to a large absorbent article as compared to the ratio of the largest dimension of, to the maximum dimension of the longitudinal direction D _L of the absorber, the longitudinal direction D _L maximum dimension of the topsheet However, it may be equal to or smaller than the ratio of the maximum dimension of the width direction D _W of the surface sheet to the maximum dimension of the width direction D _W of the absorber.

In the present invention, as the outer shape, various dimensions, basis weight, etc. of the absorber, any outer shape, various dimensions, basis weight, etc. according to the desired absorption performance, flexibility, strength, etc. can be adopted.

[Back sheet]
In the sanitary napkin 1 described above, as shown in FIGS. 3 and 4, the back sheet 3 extends from the front end portion to the rear side end portion in the longitudinal direction of the sanitary napkin 1 in a plan view. , The sanitary napkin 1 has a vertically long outer shape extending from one side end portion of the width direction D _{W to} the other side end portion. As shown in FIG. 4, the back sheet 3 is arranged at a position on the non-skin facing surface side in the thickness direction _DT of the sanitary napkin 1 and is a non-contact surface with respect to the wearer's skin surface (that is, for sanitary use). forming a non-skin-facing surface S _B) of the napkin 1 is formed by a liquid-impermeable sheet member.

The liquid-impermeable sheet-like member is not particularly limited as long as it has at least a liquid impermeable property that can prevent the permeation of liquid excrement discharged from the wearer. For example, heat. Hydrophobic non-woven fabrics formed of plastic resin fibers (for example, polyolefin resin fibers such as polyethylene and polypropylene, polyester resin fibers such as polyethylene terephthalate, various composite fibers such as core sheath type); thermoplastics such as polyolefin resins. A hydrophobic resin film formed of a resin; a laminate obtained by laminating a non-woven fabric on the resin film; a laminated non-woven fabric such as an SMS non-woven fabric can be used. Further, the structure of the sheet-like member is not particularly limited, and in addition to a flat non-perforated sheet-like structure, for example, a plurality of openings for ensuring air permeability while maintaining a predetermined liquid impermeable property are provided. Various sheet-like structures such as a flat sheet-like structure and an uneven structure can be adopted.

In the present invention, as the outer shape, various dimensions, basis weight, etc. of the back sheet, any outer shape, various dimensions, basis weight, etc. can be adopted according to the desired leakage-proof performance, breathability, and the like.

[Side sheet]
In the sanitary napkin 1 described above, the pair of side sheets 5 and 5, as shown in FIG. 2, extends in plan view, respectively in the longitudinal direction D _L at both ends in the width direction D _W of the sanitary napkin 1 It is formed by a pair of strip-shaped sheet-like members. The pair of side sheets 5 and 5 are arranged at positions on the skin facing surface side in the thickness direction _DT of the sanitary napkin 1 to form the skin facing surface S _F of the sanitary napkin 1 together with the surface sheet 2. ing.

Further, in each of the pair of side sheets 5 and 5, the outer side end portion of the width direction D _W is joined to the skin facing surface of the back surface sheet 3 to form a fixed end portion, while the width direction D _W The central end is not joined to any of the constituent members such as the surface sheet 2 and forms a free end. As a result, when the sanitary napkin 1 is worn, the pair of side sheets 5 and 5 stand up at the central end (free end) of the width direction D _W to prevent leakage of liquid excrement discharged from the wearer. A leak-proof wall portion for prevention can be formed.

The band-shaped sheet-like member used for the side sheet may have various characteristics (for example, liquid impermeable (leakage proof), touch, flexibility, strength, etc.) that can be used as a side sheet for an absorbent article. However, the present invention is not particularly limited, and for example, a liquid-impermeable sheet-like member similar to the back surface sheet (that is, a sheet-like member such as a hydrophobic non-woven fabric or a hydrophobic resin film) cut into a strip shape may be used. it can.

In the present invention, as the outer shape, various dimensions, basis weight, etc. of the side sheet, any outer shape, various dimensions, basis weight, etc. can be adopted according to desired leak-proof property, touch, flexibility, and the like.

In the present invention, since it is not an indispensable constituent requirement to include the pair of side sheets, it is not always necessary to have such side sheets depending on the form of the absorbent article and the like.

[Functional layer]
In the above-mentioned sanitary napkin 1, as shown in FIG. 2, the functional layer 21 is located at least on the front side _DF of the sanitary napkin 1 in a plan view, and the dimension of the width direction D _W is compared with the surroundings. The wide portion 20 that has become larger has a predetermined outer shape that extends over a wide range in the longitudinal direction _DL and the width direction D _W. As shown in FIG. 4, the functional layer 21 is arranged between the front surface sheet 2 and the back surface sheet 3 in the thickness direction _DT of the sanitary napkin 1 and exerts a predetermined action (warm feeling action) on the wearer. It is formed by a sheet-like member containing a warming agent as a functional agent to bring about.

The sheet-like member forming the functional layer 21 is composed of a warming agent as a functional agent and a base material capable of holding the warming agent. In the present invention, the wide portion is not limited to the one in which the functional layer containing the functional agent is arranged, and the absorption layer not containing the functional agent is arranged between the front surface sheet and the back surface sheet. May be good.

In the present embodiment, the base material capable of holding the above-mentioned functional agent is not particularly limited as long as it can hold a liquid or solid functional agent. Cloth, etc.), porous resin sheet (for example, sponge sheet, etc.) and the like. Such a base material may be used alone as a base material for a functional layer, or may be used in combination with other constituent members (for example, a front surface sheet, a back surface sheet, an intermediate sheet, a core wrap sheet, etc.).
If the functional agent itself has a predetermined shape-retaining property, etc., and the functional agent alone can be arranged at a predetermined position of the absorbent article and can exhibit a predetermined function, the functional layer is a base. It does not have to have the material.

(Functional agent)
Further, in the above-mentioned sanitary napkin 1, the warming agent used as a functional agent does not generate heat by itself and stimulates the warming sensory receptor of the wearer's skin to make the wearer perceive warmth. It contains a sensory component and a solvent component that dissolves the warmth component. In the above-mentioned sanitary napkin 1, the warming agent is contained in substantially the entire functional layer 21 in a plan view, but if it can exhibit a predetermined warming function, a part (for example, for example). It may be included only in the central part, etc.).

The functional agent may be protected by a water-disintegrating protective material, such as microcapsules, to prevent the sanitary napkin 1 from volatilizing or moving to other areas before it is used. .. Microcapsules contain functional agents and disintegrate when exposed to liquids (eg menstrual blood, urine, sweat), releasing the functional agents to the outside. The released functional agent exerts a predetermined function on the wearer by vaporizing due to the wearer's body temperature or the like or by coming into contact with the wearer's skin.

Materials for microcapsules include, for example, saccharides such as monosaccharides (eg glucose), disaccharides (eg sucrose) and polysaccharides (eg dextrin, glucomannan, sodium alginate, water-soluble starch), gelatin, etc. Examples thereof include water-soluble polymers (eg, polyvinyl alcohol, polyvinyl acetate) and the like.

Microcapsules are commercially available, and examples thereof include INCAP ™, which is commercially available from Symrise. Further, the microcapsules are produced, for example, by dissolving the material of the microcapsules in water to form an aqueous solution, mixing the functional agent and the surfactant with the aqueous solution, and drying under reduced pressure while spraying the aqueous solution. Can be done.

In the sanitary napkin 1 described above, even if the functional layer 21 is arranged on the non-skin facing surface side of the surface sheet 2, the warming agent of the functional layer 21 permeates the surface sheet 2 when the sanitary napkin 1 is worn. Since it can come into contact with the skin of the wearer's lower abdomen, the warming component of the warming agent can stimulate the thermal sensory receptors of the skin to give the wearer a warm feeling. it can.
By warming the wearer's lower abdomen, that is, the part near the wearer's uterus in this way, the wearer's menstrual pain can be alleviated, and symptoms such as premenstrual syndrome, poor circulation, and menopause can be alleviated. It is expected.

The position of the _{DT in} the thickness direction in which the functional layer 21 is arranged is not particularly limited as long as the warming agent can come into contact with the wearer's skin when the sanitary napkin 1 is worn, but the position on the wearer's skin is not particularly limited. it is preferable from the viewpoint of ease of contact, which is located closer to the skin-facing surface S _F.

The warming component contained in the warming agent is preferably a plant-derived compound from the viewpoint of giving a sense of security to the wearer, for example, capsaicins, vanillyl alcohol alkyl ether derivatives (for example, vanillyl ethyl). Ether, vanillyl butyl ether, vanillyl pentyl ether, vanillyl hexyl ether, etc.), ginger extract, ginger oil and the like. Among these compounds, it is preferable to use vanillyl alcohol alkyl ether derivative, ginger extract, ginger oil and the like from the viewpoint of skin irritation. In addition, these compounds may be used alone or in combination of 2 or more types.

Further, when the warming agent is applied to a base material by coating or the like, a solvent component capable of dissolving or dispersing the warming component may be used together with the warming component, and as such a solvent component. For example, a lipophilic solvent, a hydrophilic solvent and the like can be mentioned.
Examples of the lipophilic solvent include fats and oils such as natural oils (for example, fatty acid esters such as triglycerides, coconut oil, linseed oil and the like) and hydrocarbons (for example, paraffin and the like). On the other hand, examples of the hydrophilic solvent include water and alcohol, and examples of the alcohol include lower alcohols (for example, methanol, ethanol, ethylene glycol, glycerin, etc.) and higher alcohols (for example, capryl alcohol). , Lauryl alcohol, etc.) and the like.
Among these solvents, it is preferable to use a lipophilic solvent such as fat or oil or alcohol because it is easy to control the volatility, and further, it is easy to maintain the absorption performance of the absorbent article. It is more preferable to use an oily solvent.
In addition, such a solvent may stay in the application site in a state where the solvent is solidified or semi-solidified after being applied to the base material, or the solvent may be volatilized and only the solute remains.

Further, when the warming agent contains a solvent, the concentration of the warming component is preferably 0.0001% by mass or more and 5.0% by mass or less, more preferably 0.0005% by mass, from the viewpoint of the warming effect. % Or more and 3.0% by mass or less, and more preferably 0.1% by mass or more and 1.0% by mass or less.

In the present invention, the functional agent is not limited to the above-mentioned warming agent, and any functional agent according to a desired action can be adopted. Examples of such functional agents include cooling sensation agents, exothermic agents, agents (for example, skin astringents, anti-inflammatory agents, antibacterial agents, pH adjusters, moisturizers, etc.). In these functional agents, for example, in a plan view, one type of functional agent (for example, a warming agent) is arranged in a part of the functional layer, and another type of functional agent (for example, for example) is arranged in another part. It may be used in combination in the form of arranging a cooling agent).

In the present invention, the cooling sensation agent that can be used as the functional agent contains a cooling sensation component that stimulates the cooling sensation receptor of the wearer's skin without absorbing heat and causes the wearer to perceive the cooling sensation. It may contain a solvent component that dissolves or disperses the cooling sensation component, if necessary. Examples of the cooling sensation component include menthol (for example, l-menthol, etc.); menthol derivative (for example, menthyl lactate, menthylglyceryl ether, etc.); methyl salicylate; essential oil derived from plants such as mint and eucalyptus. As the solvent component that may be contained in the cooling sensation agent, the same solvent component as that that may be contained in the warming sensitizer can be used.

Further, when the cooling sensation agent contains a solvent, the concentration of the cooling sensation component in the cooling sensation agent is preferably 0.0001% by mass or more and 5.0% by mass or less from the viewpoint of the cooling sensation effect, which is more preferable. Is 0.0005% by mass or more and 3.0% by mass or less, and more preferably 0.1% by mass or more and 1.0% by mass or less.

In the present invention, the exothermic agent that can be used as the functional agent has an action of warming the wearer's skin by generating heat by itself. Examples of such a heating agent include those that utilize chemical energy such as heat of oxidation of metal powder such as iron powder, heat of neutralization of acid or alkali, and heat of hydration of inorganic salt. The exothermic agent may be used by being dissolved or dispersed in a solvent component or a dispersion medium.

In the present invention, the agent that can be used as the functional agent has a predetermined pharmacological action on the skin of the wearer, and examples thereof include a skin astringent, an anti-inflammatory agent, an antibacterial agent, a pH adjuster, and a moisturizer. Be done.
Examples of the skin astringent include zinc oxide, aluminum sulfate, tannic acid, and oil-soluble polyphenols (for example, Oubaku extract, Otogirisou extract, Chamomile extract, Shirakaba extract, Biwa leaf extract, Bodaiju extract, Hop extract, etc.). Examples include those containing ingredients.
Examples of the anti-inflammatory agent include naturally occurring anti-inflammatory components (eg, button extract, otogirisou extract, chamomile extract, yomogi extract, perilla extract, etc.) and synthetic anti-inflammatory components (eg, allantoin, dipotassium glycyrrhizinate, etc.). Examples include those containing anti-inflammatory components.
Examples of the antibacterial agent include naturally derived antibacterial components (for example, Oubaku extract, olive leaf extract, chamomile extract, bear zasa extract, sansho extract, perilla extract, dokudami extract, hop extract, eucalyptus extract, yomogi extract, etc.) and synthetic. Examples thereof include those containing an antibacterial component such as an antibacterial component (for example, ethylhexyl glycerin).
Examples of the pH adjuster include those containing a weakly acidic component for keeping the skin weakly acidic, such as malic acid, succinic acid, citric acid, tartaric acid, and lactic acid.
Examples of the moisturizer include those containing moisturizing components such as polyhydric alcohols (for example, glycerin, propylene glycol, butylene glycol, sorbitol, etc.), urea, and emollient components (for example, petrolatum, etc.).

In the present invention, as the content (basis weight) of the functional agent in the functional layer, a predetermined content can be adopted according to the type of the functional agent, the arrangement position of the functional layer, and the like. For example, when a warming agent or a cooling sensation agent is adopted as the functional agent and the functional layer is arranged in the same form as the above-mentioned physiological napkin 1, the functional agent is a warming component or a cooling sensation component as an active ingredient. The basis weight of the cooling sensation component is preferably 0.001 g / m ² or more and 10 g / m ² or less, more preferably 0.003 g / m ² or more and 5 g / m ² or less, and further preferably 0.01 g / m ² or more 2 It can be contained in the functional layer in a basis weight of .5 g / m ² or less.

In the present invention, as the outer shape, various dimensions, basis weight, etc. of the functional layer, any outer shape, various dimensions, basis weight, etc. can be adopted according to the type and arrangement form of the functional agent. The properties of the functional agent are not particularly limited, and may be, for example, a solution containing the active ingredient, a solid component that can be applied, or a liquid effective substance. It may be composed of components or may be a volatile component.

The colorant used for coloring the functional layer is not particularly limited, and any colorant known in the art (for example, pigment, dye, etc.) can be used. Further, the coloring means using this colorant is not particularly limited, and the functional layer may be colored by, for example, coating or printing the colorant, or by incorporating the colorant into the constituent components of the functional layer. It may be colored.

[Adhesive part for fixing]
As described above, the sanitary napkin 1, as shown in FIG. 3, the non-skin-facing surface S _B of the backsheet 3 and has a plurality of fixing adhesive portion of the second adhesive regions. More specifically, the absorber 4 and to overlap in the thickness direction D _T and the longitudinal direction D garment fixing adhesive portion 70 arranged in a plurality of strip-shaped form extending along the _L; a pair of flap portions 6 longitudinal D _L plurality of strip-like arranged a pair of flaps fixing adhesive portion 71, 71 in the form extending along the non-skin-facing surface S _B of each of 6; front side of the sanitary napkin 1 in the wide portion 20 located D _F at both ends in the width direction D _W, and a plurality of strip-shaped pair of front-side adhesive portion arranged in the form 72, 72 extending along a longitudinal direction D _L. Each of these fixing adhesive portions is formed by an adhesive arranged in the above-mentioned predetermined form.

The front side adhesive portions 72 and 72 in the present embodiment correspond to the second adhesive portion in contact with the width direction end release sheet in the present invention, and the front side adhesive portions 72 and 72 are plural as described above. with present is divided into, the front-side bonding portion 72, 72 there are a plurality of can extend along the longitudinal direction D _L, are arranged substantially parallel to each other at an interval in the width direction D _W. Thus, in the deployed state, as compared with conventional absorbent articles of the individual package, in the longitudinal direction D individual package size is prone sanitary napkin 1 lengthened _L, from individual packaging sheet 11, the longitudinal direction D _The sanitary napkin 1 having a long _L dimension can be easily detached along the width direction D _W. Further, the constituent materials of the sanitary napkin 1 such as the side sheets 5, 5 and the back surface sheet 3 are highly flexible and tend to be easily deformed, but the sanitary napkin 1 is separated from the wide portion release sheets 13 and 13. after, and the front-side bonding portion 72, 72 which are applied to the sanitary napkin 1 to the inside, bent at broken axial end portion in the width direction of the sanitary napkin 1 extending in the longitudinal direction D _L, bent back surface Even if the sheets 3 are adhered to each other, the amount of the adhesive applied to the front adhesive portions 72 and 72 applied to the adhered portion is relatively small, and the adhesives may adhere to each other. It can also be reduced. Therefore, the bent adhesive portion of the sanitary napkin 1 can be easily peeled off, and as a result, the sanitary napkin 1 can be easily peeled off from the peeling sheet.

Further, the total area of the front side adhesive portions 72, 72 in contact with the wide portion release sheets 13, 13 corresponding to the width direction end release sheets in the present invention is the area of the wide portion release sheets 13, 13. , 60% or less. As a result, after the sanitary napkin 1 is separated from the wide portion peeling sheets 13 and 13, the wide portion of the sanitary napkin 1 is peeled off with the front adhesive portions 72 and 72 applied to the sanitary napkin 1 inside. bent at bending axis sheets 13 and 13 extending along the longitudinal direction D _L, bent even had bonded with the backsheet 3 to each other, the wide portion release sheet 13, 13 is applied to the adhesive portion The amount of adhesive applied is relatively small. Therefore, the bent adhesive portion of the sanitary napkin 1 can be easily peeled off, and as a result, the sanitary napkin 1 can be easily separated from the individual packaging sheet 11.

As the pressure-sensitive adhesive used for such a fixing adhesive portion, any pressure-sensitive adhesive known in the art can be adopted, for example, styrene-ethylene-butadiene-styrene (SEBS), styrene-butadiene-styrene ( Examples thereof include pressure-sensitive pressure-sensitive adhesives mainly composed of styrene-based copolymers such as SBS) and styrene-isoprene-styrene (SIS). By using these adhesives for the fixing adhesive portion, the sanitary napkin 1 can be detachably fixed to clothes, peeling sheets, and the like.

In the present invention, as the arrangement form, outer shape, various dimensions, etc. of the second adhesive portion, any arrangement form, outer shape, various dimensions, etc. may be adopted in consideration of ease of fixing to clothing.

[Individual wrapping sheet]
FIG. 1 is a perspective view of an individual package 10 formed by folding a sanitary napkin 1, FIG. 1A is a perspective view of the individual package 10 viewed from the skin facing surface _SF side, and FIG. 1B is a perspective view. is a perspective view of the individual package 10 from the non-skin-facing surface S _B side. In the embodiment described above, the individual packaging body 10, as shown in FIG. 1, secured to the sanitary napkin 1 through a plurality of fixing adhesive portion arranged in the non-skin-facing side S _B of the sanitary napkin 1 It has the individually wrapped sheet 11. Note that the individual wrapping sheet 11 is not shown in FIGS. 3 and 4.
The individually wrapped sheet 11 is folded together with the sanitary napkin 1 to wrap the folded sanitary napkin 1, and is formed of a predetermined sheet-like member.

The sheet-like member that can be used as the individual packaging sheet is not particularly limited, and for example, a resin sheet, a non-woven fabric, or the like can be used. Above all, from the viewpoint of airtightness of the individual package, it is preferable to use a resin sheet, and further preferably, a resin sheet made of a polyolefin resin such as polyethylene or polypropylene is used. Such a resin sheet may have a single-layer structure or a multi-layer laminated structure, and may further have a barrier layer formed of an ethylene vinyl alcohol copolymer (EVOH) resin or the like. ..

In the present invention, as the outer shape, various dimensions, basis weight, etc. of the individual packaging sheet, any outer shape, various dimensions, basis weight, etc. can be adopted in consideration of ease of packaging, airtightness, and the like.

[Peeling sheet]
In the above-described embodiment, as shown in FIG. 3, one or more individual packages 10 have one surface fixed to the individual package sheet 11 via the release sheet adhesive portion 16 which is the first adhesive portion. A release sheet is provided. More specifically, the sanitary napkin 1 is arranged at both ends of the wide portion 20 in the width direction D _W as a release sheet, the wide portion release sheets 13 and 13; the absorbent body 4 and the thickness of the sanitary napkin 1. It includes an absorber position release sheet 14; which is arranged so as to be superimposed on the longitudinal direction _DT ; and flap portion release sheets 15 and 15 which are arranged on the flap portions 6 and 6. The other surfaces of these wide portion release sheets 13 and 13; the absorber position release sheet 14; and the flap portion release sheets 15 and 15, respectively, are the front side adhesive portions 72 and 72; the clothes fixing adhesive portion 70; the flap portion. It is detachably fixed to the fixing adhesive portions 71, 71, whereby the sanitary napkin 1 is detachably fixed from the release sheet. As shown in FIG. 3, the wide portion peeling sheets 13 and 13 in the present embodiment are arranged at both ends of the wide portion 20 in the width direction D _W , and are end portions in the width direction in the present invention. Corresponds to a release sheet. Further, the wide portion release sheet 13 in this embodiment and the absorber positioned release sheet 14, are at least partially, in the sense that are disposed at both ends in the longitudinal direction D _L of the sanitary napkin 1, Corresponds to the longitudinal end release sheet in the present invention.

In the present embodiment, the rigidity of each of the above-mentioned release sheets is larger than the rigidity of the individually wrapped sheet 11. As a result, when at least a part of the individual packaging sheet 11 and at least a part of the sanitary napkin 1 are gripped and the sanitary napkin 1 is separated from each release sheet, each release sheet is unlikely to be deformed. Even if the sanitary napkin 1 is deformed, it is difficult for each release sheet to follow such deformation, and the peel strength of the release sheet adhesive portion 16 is stronger than the peel strength of the fixing adhesive portion. Since it is easy to stay on the individual packaging sheet 11, the sanitary napkin 1 can be easily separated from the individual packaging sheet 11 and each release sheet.

Each of the above-mentioned release sheets has one surface of each release sheet fixed to the individual packaging sheet 11 via the release sheet adhesive portion 16 as the first adhesive portion in the present invention. Here, in the present embodiment, the outer edge of the front side adhesive portions 72, 72 in contact with the wide portion release sheets 13, 13 in the width direction D _W is adhered to the wide portion release sheets 13, 13 in the unfolded state. The portion 16 is arranged at the same position as the outer edge of the D _W in the width direction or inside the outer edge. As a result, when the wide portion 20 of the sanitary napkin 1 is picked and the sanitary napkin 1 is to be separated from the individual packaging sheet 11 in the width direction, the individual packaging sheet 11 is separated from the individual packaging sheet 11 via the release sheet adhesive portion 16. The force that pulls the wide release sheets 13 and 13 is transmitted to the wide release sheets 13 and 13 from the sanitary napkin 1 through the front adhesive portions 72 and 72, rather than the force that pulls the wide release sheets 13 and 13. Since the wide portion peeling sheets 13 and 13 are pulled toward the individual packaging sheet 11 side and easily remain on the individual packaging sheet 11 side, the sanitary napkin 1 is easily transmitted from the wide portion peeling sheets 13 and 13. Easy to leave.

Further, corresponding to the longitudinal end portion release sheet, the front-side bonding portion 72, 72 in contact wide portion release sheet 13, and the absorber position release sheet 14, respectively, and the longitudinal direction D _L of the garment fixing adhesive portion 70 the outer edge, the wide portion release sheet 13, and the longitudinal direction D located inside than or the same position as the outer edge of the _L of the release sheet bonding portion 16 of the first adhesive portion in contact with the absorbent member position release sheet 14 Has been done. Thus, by pulling the end of the longitudinal D _L of the sanitary napkin 1 toward the longitudinal direction D _L, when it is intended to leave the sanitary napkin 1 from the individual packaging sheet 11, the individual packaging sheet 11 side The pulling force for pulling the wide portion release sheets 13, 13 and the absorber position release sheet 14 is via the release sheet adhesive portion 16 having a stronger peel strength, and the wide portion release sheets 13, 13 and the absorber position release sheet easily transmitted to 14, the tensile force by the front end bonding portions 72, and more so easily acts on clothes fixing adhesive portion 70, from the longitudinal D _L, the sanitary napkin 1 individual package sheet 11 and the release Easy to remove from the seat.

In the present invention, the positional relationship between the first adhesive portion and the second adhesive portion is not limited to the above relationship, and the width direction end release sheet is directed from the individual packaging sheet in the width direction. The peeling strength at the time of peeling can be appropriately adjusted within a range in which the peeling strength at the time of peeling the absorbent article from the end peeling sheet in the width direction in the width direction is larger than the peeling strength. Further, in the present invention, in order to make the peeling strength when the peeling sheet is peeled from the individually packaged sheet larger than the peeling strength when the absorbent article is separated from the peeling sheet, the first adhesive portion is used. By appropriately changing the type, coating amount, coating area, etc. of the adhesive applied to the second adhesive portion and the adhesive applied to the second adhesive portion, the adhesive strength of the adhesive applied to the first adhesive portion can be increased. 2 The adhesive strength of the adhesive applied to the adhesive portion may be increased. For example, the adhesive applied to the first adhesive portion may be an adhesive having a larger adhesive strength than the adhesive strength of the adhesive applied to the second adhesive portion, or may be applied to the first adhesive portion. The amount of the adhesive applied may be larger than the amount of the adhesive applied to the second adhesive portion, or the application area of the adhesive applied to the first adhesive portion may be increased. It may be larger than the application area of the adhesive applied to the second adhesive portion. Further, one surface of the release sheet to which the first adhesive portion is applied may not be subjected to the mold release treatment, and only the other surface of the release sheet to which the second adhesive portion is applied may be subjected to the mold release treatment.

[Adhesive tape]
In the above-described embodiment, as shown in FIGS. 1A and 2, the individual packaging body 10 is arranged on the outer surface of the individual packaging sheet 11 so as to straddle the end portion and other portions of the individual packaging sheet 11. The adhesive tape 12 is provided. The adhesive tape 12 seals the opened end of the individually wrapped sheet 11 folded together with the sanitary napkin 1 to maintain the individually wrapped state of the folded sanitary napkin 1, and is provided by a strip-shaped tape member. It is formed.

As the tape member used as the adhesive tape 12, any tape member known in the art can be adopted, for example, a strip-shaped tape base material (for example, film, non-woven fabric, paper, etc.) and the tape base material. Examples thereof include those composed of a pressure-sensitive adhesive (for example, a rubber-based pressure-sensitive adhesive, an acrylic-based pressure-sensitive adhesive, etc.) arranged on the surface. Further, the constituent materials of the film and the non-woven fabric that can be used as the tape base material are not particularly limited, and examples thereof include polyolefin resins such as polyethylene and polypropylene; polyester resins such as polyethylene terephthalate; polyamide resins; polyurethane resins and the like. Can be mentioned. Such a tape base material may have elasticity.

In the present invention, as the arrangement form, outer shape, various dimensions, etc. of the adhesive tape, any arrangement form, outer shape, various dimensions, etc. may be adopted in consideration of the strength required for the adhesive tape, ease of opening, and the like. it can.

In the present invention, it is not an indispensable constituent requirement to include such an adhesive tape 12, so if the individual packaging state can be maintained by means other than the adhesive tape (for example, heat fusion means), the individual packaging state can be maintained. The package does not have to be provided with such an adhesive tape.

[Method of forming individual packages]
Hereinafter, a method of folding an absorbent article (that is, a method of forming an individual package) for forming the individual package of the present invention will be described in detail with reference to the drawings. FIG. 5 is a perspective view for explaining a folding method of the sanitary napkin 1 for forming the individual package 10.

The individual packaging body 10 of the embodiments described above, FIG. 5 a sanitary napkin 1 of the expanded state (a), the as shown in FIG. 5 (b), a first longitudinal extending in the longitudinal direction D _L After folding each of the fold line LW ₁ and the second fold line LW _{2 in} the longitudinal direction in three in the width direction D _W so that the skin facing surface S _F is on the inside, the figures 5 (c) and (d) show. as shown, in each of the widthwise direction a first fold line LL ₁ and the width direction second fold line LL ₂ extending in the width direction D _W, the three-fold in the longitudinal direction D _L as skin-facing surface S _F is the inner It can be formed by folding.

Incidentally, when the fold the sanitary napkin 1, the sanitary napkin 1 folded with individual packaging sheet 11 secured to the non-skin-facing surface S _B, furthermore, after folding, the said the outer surface of the individual package sheet 11 The opened end of the folded individual packaging sheet 11 is sealed by the adhesive tape 12 arranged at the end of the individual packaging sheet 11 to maintain the packaging state.

In the present invention, the method of folding the absorbent article for forming the individual package is not limited to the mode of the above-described embodiment, and is arbitrary in consideration of the compactness of the individual package, the ease of opening, and the like. Folding method can be adopted.

[How to remove absorbent articles from individual packages]
The method for detaching the sanitary napkin 1 from the individual package of the sanitary napkin 1 of the present embodiment differs depending on the user, but the sanitary napkin 1 includes a wide portion 20 and has a longitudinal direction _DL . Since the size is larger, it is assumed that the sanitary napkin 1 is separated from the individual package 10 by, for example, the following method.
First, the individual packaging body 10 of the individual package state, have been respectively threefold in the longitudinal direction D _L and the width direction D _W, the user, firstly, expand the individual packaging body 10 in the longitudinal direction D _L, Then, it develops in the width direction D _W. The sanitary napkin 1 is provided with a wide portion 20 at the end of the front side _DF . For example, the user picks one end of the wide portion 20 in the width direction D _W with a fingertip and individually wraps the sheet 11. Attempts to detach the sanitary napkin 1 in the diagonal direction of. At this time, a force is applied to one of the front side adhesive portions 72, 72, which one of the wide portion release sheets 13 and 13 opposes, toward the width direction D _W. Even in such a case, the individual package of the sanitary napkin 1 of the present invention can easily separate the sanitary napkin 1 from the wide portion release sheets 13 and 13 and easily separate from the individual package sheet 11.
After one wide part peeling sheet 13 is peeled from the sanitary napkin 1, the other wide part peeling sheet 13 and the absorber position peeling sheet 14 are also separated from the individually wrapped sheet 11 of the sanitary napkin 1. As a result, it will peel off.

<Second Embodiment>
Hereinafter, the second embodiment of the individual package of the present invention will be described in detail with reference to the drawings. In this embodiment, the differences from the first embodiment will be mainly described. 6 to 8 are diagrams showing a configuration example of the individual packaging body 10 (state of individual packaging) according to the present embodiment. FIG. 6 is a perspective view showing a configuration example of the individual packaging body 10 (individual packaging state) of the sanitary napkin 1. FIG. 7 is a plan view showing a configuration example of the individual package 10 of the sanitary napkin 1. FIG. 8 is a schematic view showing an individual packaging method (method of forming the individual packaging body 10) of the sanitary napkin 1 according to the embodiment. However, FIGS. 6 and 8 are basically the same as those in FIGS. 1 and 5, respectively, but the positions of the functional layer 21 and the wide portion release sheets 13 and 13 in the individual package 10 are shown in an easy-to-understand manner. It differs from FIG. 1 and FIG. 5 in that points, respectively.

Here, it is assumed that the individual package 10 is divided into three regions in the width direction D _W by the longitudinal first fold line LW ₁ and the longitudinal second fold line LW ₂ . That is, the individual packaging body 10 in the width direction _{D W,} the first width direction folds _{B 1} of the outer (one end side) than the first longitudinal fold line LW _1, than second longitudinal fold line LW ₂ an outer second widthwise fold B ₂ of (the other end), it is divided into a central portion in the width direction B _C between the first longitudinal fold line LW ₁ and second longitudinal fold line LW ₂ Shall be. In addition, even when the individual package 10 is folded by the first folding line LW _{1 in the} longitudinal direction and the second folding line LW ₂ in the longitudinal direction, those portions are similarly folded in the first width direction B ₁ and the second width. It shall be referred to as a direction folds B ₂ and the widthwise central portion B _C.
Furthermore, individual packaging body 10 in the longitudinal direction D _L, shall be divided into three regions by the width direction first fold line LL ₁ and the width direction second fold line LL _2. That is, the individual packaging body 10 in the longitudinal direction _{D L,} and the first longitudinal folds _{A 1} of the outer side (one end side) than the width direction first fold line LL _1, than the widthwise second fold line LL ₂ a second longitudinal folding unit a ₂ of the outer (the other end) is partitioned longitudinal direction central portion a _C, in between the widthwise first fold line LL ₁ and the width direction second fold line LL ₂ It shall be. In addition, even when the individual package body 10 is folded by the width direction first fold line LL ₁ and the width direction second fold line LL ₂ , those parts are similarly folded in the first longitudinal direction A ₁ and the second longitudinal. It shall be referred to as a direction folds a ₂ and longitudinal center portion a _C.

In the individual package 10, the individually packaged state, as shown in FIG. 6, the first longitudinal folds A ₁ is includes a pair of side portions 63, 63, an intermediate portion 61, a. Here, a pair of side portions 63, 63, the width direction D of the adhesive tape 12 in the first longitudinal folds _{A 1} folded in the longitudinal direction first fold line LW ₁ and second longitudinal fold line LW _{2 W} is located on either side of and extending longitudinally D _L. In the present embodiment, one side portion 63 sets the position of one side edge of the adhesive tape 12 in the width direction D _W in the first longitudinal folding portion A _{1 and} the position of one side edge of the side portion 63 in the width direction D _W. As an edge, it is a portion outside the width direction D _W from the edge. Position of the other edge in the width direction D _W of the side portion 63 is the position of the first longitudinal fold line LW _1. The other side 63, the other side edge in the width direction D _W of the adhesive tape 12, as one edge in the width direction D _W of the side portion 63, the outer portion in the width direction D _W than its edge Is. Position of the other edge in the width direction D _W of the side portion 63 is the position of the second longitudinal fold line LW _2. In another embodiment, the inner edge of the width direction D _{W in} each of the pair of side portions 63, 63 is either inside or outside the edge of the width direction D _W of the adhesive tape 12. However, inside or outside, in the width direction D _W, for example, in the range of less than 1/2 of the dimension of the width direction D _W of the adhesive tape 12 from the edge in the width direction D _W of the adhesive tape 12.

Intermediate portion 61 in the width direction _{D W,} is positioned between the pair of side 63, and extends in the longitudinal direction _{D L.} The intermediate portion 61 has the same dimensions as the adhesive tape 12 in the width direction D _W , and is in contact with both of the pair of side portions 63, 63. In another embodiment, the intermediate portion 61 has a dimension less than the dimension of the adhesive tape 12 in the width direction _DW , is located between the pair of side portions 63, 63, and of the pair of side portions 63, 63. It is in contact with one side. Further, in another embodiment, the intermediate portion 61 has a dimension less than the dimension of the adhesive tape 12 in the width direction _DW , is located between the pair of side portions 63, 63, and the pair of side portions 63, It does not touch both of 63.

In the present embodiment, the rigidity of each of the pair of side portions 63, 63 is higher than the rigidity of the intermediate portion 61. In other words, the intermediate portion 61 can be said to be a region having relatively low rigidity in the regions between the pair of side portions 63, 63. Therefore, when the both outer sides of the width direction D _W individual packaging body 10 to the force (first longitudinal folds A ₁₎ of is added, each side portion 63 is hard to deform, the intermediate portion 61 is deformed easily. Therefore, the force in the width direction D _W can be released by deforming the pair of side portions 63, 63 relatively small and the intermediate portion 61 relatively large. Since the intermediate portion 61 may exist as a region having relatively low rigidity in the region between the pair of side portions 63, 63, it does not have to exist over the entire width direction D _W , and does not need to exist in the entire width direction. It suffices if it exists in a part of the area of D _W.

In this embodiment, the one side 63, one side portion of the width direction D _W of the first widthwise fold B ₁ and the width direction central portion B _C are stacked in the thickness direction T, the other side the part 63, the other side part in the width direction D _W of the second widthwise fold B ₂ and the widthwise central portion B _C are stacked in the thickness direction T. Therefore, as shown in FIG. 7 and the like, most of the side portions 63 are the wide portion release sheet 13 and the front side adhesive portion 72 (not shown) arranged on one and the other surfaces of the wide portion release sheet 13. ) And the release sheet adhesive portion 16 (not shown), two functional layers 21, two front sheet 2, two back sheet 3, and two individually wrapped sheets 11. , Are laminated in the thickness direction T. On the other hand, in the intermediate portion 61, the portion near the outer edge of the width direction central portion _BC , the first width direction folding portion B ₁ and the second width direction folding portion B _{2 in} the width direction D _W is in the thickness direction T. It is laminated. Therefore, as shown in FIG. 7 and the like, most of the intermediate portion 61 includes the functional layer 21, two front surface sheets 2, two back surface sheets 3, and three individually wrapped sheets 11. , Are laminated in the thickness direction T. Here, considering that the effects of the front surface sheet 2, the back surface sheet 3, and the individually wrapped sheet 11 on the side portion 63 and the intermediate portion 61 are about the same, each side portion 63 is on the front side as compared with the intermediate portion 61. It contains more of the adhesive portion 72, the wide portion release sheet 13, the release sheet adhesive portion 16, and the functional layer 21. Therefore, each side portion 63 is formed of more layers than the intermediate portion 61. In other words, the intermediate portion 61 can be said to be a region formed by a relatively small number of layers in the region between the pair of side portions 63, 63. Therefore, when a force is applied to the individual packaging body 10 from both sides (first longitudinal folds A ₁₎ of the width direction D _W, each side portion 63 is hard to deform, the intermediate portion 61 is deformed easily. Therefore, the force in the width direction D _W can be released by deforming the pair of side portions 63, 63 relatively small and the intermediate portion 61 relatively large. Since the intermediate portion 61 may exist as a region formed by a relatively small number of layers in the region between the pair of side portions 63, 63, it is necessary that the intermediate portion 61 exists over the entire area of the width direction D _W. It suffices that it exists in a part of the width direction D _W.

Next, the action of the individual package 10 of the sanitary napkin 1 according to the present embodiment will be described. FIG. 9 is a schematic view showing the action of the individual package body 10. When the user grips the individual package 10 in the width direction D _W with one hand H, a force K from both ends of the width direction D _W to the center may be applied to the individual package 10. In that case, when the magnitude of the applied force K too strong, none of the individual package 10, thus the first longitudinal folds A ₁ and the second longitudinal folding unit A ₂ along the shape of the palm, generally concave There may be a situation where it is transformed into. In that case, it may be difficult to pinch the adhesive tape 12 well.

Accordingly, the present sanitary napkin 1, the first longitudinal folds A _1, each of the rigidity of the pair of side portions 63, 63 positioned on both sides of the adhesive tape 12, between a pair of side portions 63, 63 It is made higher than the rigidity of the intermediate portion 61 located. Therefore, when a force K from both ends of the width direction D _W toward the center portion is applied to the first longitudinal folding portion A ₁ , each side portion 63 having high rigidity can be made difficult to be deformed, and an intermediate portion having low rigidity can be made difficult to deform. The portion 61 can be easily deformed. Alternatively, the present sanitary napkin 1, the first longitudinal folds A _1, the reinforcing member inside of each of the pair of side portions 63, 63 (illustrated: functional layer 21, the front-side bonding portion 72, the wide portion release sheet 13. The release sheet adhesive portion 16 and at least one of the other sheet members) are arranged. Therefore, when a force K from both ends of the width direction D _W toward the central portion is applied to the first longitudinal folding portion A ₁ , each side portion including the reinforcing member can be made difficult to be deformed, and the reinforcing member is included. Not the middle part can be easily deformed.

However, hardly the intermediate portion 61 is slightly deformed is fixed to the second longitudinal folding unit A ₂ with the adhesive tape 12. Therefore, when a force K from both ends of the width direction D _W toward the center portion is applied to the first longitudinal folding portion A ₁ , the portion near the boundary between the pair of side portions 63, 63 and the intermediate portion 61 is mainly. It will be transformed. Specifically, when viewed from the longitudinal D _L, that of the first longitudinal folds A _1, the portion in the vicinity of the boundary between the pair of side 63 and the intermediate portion 61 is deformed, intermediate section 61 As a base point, the portions of the pair of side portions 63, 63 corresponding to both ends of the D _W in the width direction of the individual package 10 stand up. That is, with the intermediate portion 61 as a kind of folding line (or base point), the side portions 63 and 63 on both sides thereof rise to form a substantially V-shaped shape. At this time, the second longitudinally folded portion A ₂ is deformed in a substantially concave shape, but the rising portion of the outer portion in the width direction D _W is small. Therefore, the gap V is generated between the respective second longitudinal folding unit A ₂ and the pair of side 63, 63. When these gaps V occurs, the user naturally by inserting a finger into one of the gaps V, in does picked the side portion 63, by pulling apart the second longitudinal folding unit A _2, the adhesive tape Attempts to peel off 12. Here, since each of the pair of side portions 63, 63 has relatively high rigidity, the force to pull them apart can be easily transmitted to the adhesive tape 12. As a result, the user can easily open the individual package 10 by inserting a finger into the gap V, pinching the side portion 63, and peeling off the adhesive tape 12. That is, in the individual package 10 of the sanitary napkin 1, it is possible to provide the individual package 10 that is easy to open even when it is gripped by one hand H and opened by the other hand.

Here, the side portion 63 has relatively high rigidity (or is hard to be deformed), but the entire side portion 63 does not have to be highly rigid, and may be partially high rigidity. In a plan view, the area of the highly rigid (or hard to deform) region of the side portion 63 is 30% or more of the total area of the side portion 63, preferably 40% or more, more preferably 50% or more, 60. % Or more is even more preferable. Further, in a plan view, the dimension in the longitudinal direction D _L of the high stiffness (or hardly deformed) region on the side 63, taking into account the range in which the finger to apply a force K is disposed, longitudinal sides 63 D _L 30% or more dimensions include the, preferably at least 40%, more preferably at least 50%, still more preferably 60% or more. Further, in a plan view, the dimension of the width direction D _W of the region having high rigidity (or resistance to deformation) in the side portion 63 is 60, which is the dimension of the width direction D _W of the side portion 63 from the viewpoint of resistance to the force K. % Or more, 70% or more is preferable, 80% or more is more preferable, and 90% or more is even more preferable.

On the other hand, the intermediate portion 61 has low rigidity (or is easily deformed), but the entire region between the pair of side portions 63, 63 does not have to be low rigidity, and may be partially low rigidity. In a plan view, the area of the region having low rigidity (or being easily deformed) in the region between the pair of side portions 63, 63 is 40% or more of the area of the entire region between the pair of side portions 63, 63. 50% or more is preferable, 60% or more is more preferable, and 70% or more is even more preferable. Also, in plan view, the largest dimension of the longitudinal direction D _L of the low rigidity in a region (or easily deformed) region between the pair of side 63, 63 from the viewpoint of the intermediate portion 61 functions as a kind of polygonal line , include more than 60% of the dimension in the longitudinal direction _{D L} of the side 63, preferably at least 70%, more preferably at least 80%, still more preferably 90% or more. Further, in a plan view, the maximum dimension of the width direction D _W of the region having low rigidity (or easily deformed) in the region between the pair of side portions 63, 63 is from the viewpoint that the intermediate portion 61 functions as a kind of folding line. , 10% or more of the widthwise _DW dimension of the entire region between the pair of side portions 63, 63, preferably 20% or more, more preferably 30% or more, even more preferably 40% or more.

As a method for relatively increasing the rigidity (or difficulty of deformation) of each of the pair of side portions 63, 63, as described above, a layer not including the intermediate portion 61 (example: at least the wide portion release sheet 13 is preferable. Is a method of forming the side portion 63 in a relatively multi-layered manner by adding a front side adhesive portion 72, a release sheet adhesive portion 16) or a layer (functional layer 21) which is small in number to the side portion 63. .. Such at least the wide portion peeling sheet 13, preferably the functional layer 21, the front side adhesive portion 72, the release sheet adhesive portion 16, and the like can be said to be reinforcing members for reinforcing the rigidity of the side portion 63. Alternatively, as a method of relatively increasing the rigidity, as described above, the material such as the sheet member already included is included in the side portion 63 so that the rigidity of the side portion 63 is increased, and the intermediate portion 61 is included. There may be a method of arranging the material so as not to be included in the side portion 63 or increasing the rigidity of the material arranged in the side portion 63. As a method of increasing the rigidity of the material, there may be a method such as changing the material or changing the thickness. Alternatively, as a method of relatively increasing the rigidity, a member such as a sheet member having a relatively high rigidity other than the above-mentioned release sheet is inserted as a reinforcing member into the whole or a part of the side portion 63 in a plan view. There can be a way.

However, the rigidity (or difficulty of deformation) between the side portion 63 and the intermediate portion 61 can be compared by comparing the measurement results of the pushing force described below. The pushing force is measured as the magnitude of the load required when a predetermined jig is pushed into a substantially plate-shaped sample by a predetermined distance in the thickness direction. The larger the pushing force, the more difficult it is to deform, so it can be said that the rigidity is high. The device for measuring the pushing force is a sample table, a hole extending inward from the upper surface of the sample table, a fixture for fixing the sample on the upper surface of the sample table, and a fixture placed above the sample table and inserted into the hole. It is equipped with a possible cylindrical jig and a digital force gauge that measures the load applied to the jig. The measurement method is that the sample is placed on the upper surface of the sample table so that the measurement target area covers the hole, fixed with a fixture, and when the jig is lowered from above the sample toward the hole, the jig is hooked. Measure the load. Specifically, the measurement method is as follows.

(1) A sample is cut out of the first longitudinal folds A ₁ folded longitudinally first fold line LW ₁ and second longitudinal fold line LW _2. The first longitudinal folding unit A ₁ sample, for example, previously partitioned in a plurality of measurement target region having a rectangular 2mm square.
(2) Place the sample on the upper surface of the sample table and fix it with a fixture so that the plane direction (longitudinal direction _DL and width direction D _W ) of the sample is parallel to the upper surface of the sample table. However, the sample table is formed with a hole (diameter 20 mm × depth 10 mm) extending inward substantially vertically from the upper surface of the sample table. The sample is fixed so that the center of one measurement target area is located at the center of the hole.
(3) Set the sample table on the stand (the sample table may be preset on the stunt). However, the stand includes a columnar member extending upward in the vertical direction. A digital force gauge (FGP-5: manufactured by Nidec-Shimpo Co., Ltd.) in which a columnar jig (diameter 2 mm x length 100 mm) is connected to the tip of a stylus is attached to the columnar member. The jig is arranged above the hole of the sample table in the vertical direction so that the tip of the jig is in contact with the measurement target area of the sample. At this time, the jig can move perpendicular to the plane direction of the sample and push the sample in the thickness direction T.
(4) The jig is moved downward in the vertical direction at a speed of 30 mm / min, and the measurement target area of the sample is pushed in by 1 mm in the thickness direction T. Record the maximum load (N) measured by the digital force gauge at that time.
(5) by sequentially changing the measurement area in the first longitudinal folds A _1, repeated measurements (1) to (4), measuring a first overall longitudinal folds A _1.
(6) The measurements of (1) to (5) are repeated with N different samples (N is a natural number of 3 or more), and the average value thereof is adopted as the pushing force.

The rigidity (or difficulty of deformation) between the side portion and the intermediate portion can be compared according to the number and types of layers included in the side portion and the intermediate portion. For example, the side portion 63 includes a layer that does not include the intermediate portion 61 (example: front side adhesive portion 72, wide portion release sheet 13, release sheet adhesive portion 16) and a layer that includes a small number (example: functional layer 21). Includes. Therefore, it can be said that the side portion 63 is clearly relatively rigid (or less likely to be deformed) than the intermediate portion 61. Alternatively, if the side portion 63 includes a reinforcing member that is clearly stiff (or hard to deform) and the intermediate portion 61 does not, the side portion 63 is clearly relatively stiffer than the intermediate portion 61. Can be said to be high (or difficult to deform).

In another embodiment, a part of the reinforcing member (example: functional layer 21, functional layer 21, front side adhesive portion 72, wide portion release sheet 13, release sheet adhesive portion 16) is a pair of side portions 63, 63, respectively. To the end of the adjacent intermediate portion 61 in the width direction D _W. That is, the reinforcing member extends from the side portion 63 beyond the edge of the intermediate portion 61 adjacent to the side portion 63 to the inside of the intermediate portion 61 (however, the range of the end portion). Therefore, upon addition of separating force applied for a minimum from the second longitudinal folding unit A ₂ picking side portion 63 can be reliably transmitted by the adhesive tape 12 to the force. That is, the user can more easily open the individual package 10. The end portion means a range of 30% of the whole from both end edges of the whole.

The absorbent article in the individual package of the present invention is not limited to the sanitary napkins of the above-described embodiments, and can be applied to various absorbent articles such as panty liners, incontinence pads, breast milk pads, and disposable diapers. ..
Further, the individual package of the present invention is not limited to the above-described embodiments and the like, and can be appropriately combined, substituted, modified, etc. within a range that does not deviate from the object and purpose of the present invention. In this specification, the ordinal numbers such as "first" and "second" are for distinguishing the items to which the ordinal numbers are attached, and mean the order, priority, importance, etc. of each item. It's not something to do.

1 Sanitary napkin (absorbent article)
2 Front sheet 3 Back sheet 4 Absorber 5 Side sheet 6 Flap part 7 Adhesive part for fixing clothes 71 Adhesive part for fixing flap part 72 Front side adhesive part 10 pieces Packaging 11 pieces Packaging sheet 12 Adhesive tape 13 Wide part peeling sheet 14 Absorber position Peeling sheet 15 Flap part Peeling sheet 16 Peeling sheet Adhesive part 20 Wide part 21 Functional layer 30 Absorption area 40 Overlapping part

Claims (10)

Individual wrapping sheet and
One or more release sheets whose one surface is fixed to the individual wrapping sheet via the first adhesive portion, and
An individual package of an absorbent article comprising an absorbent article detachably fixed to the other surface of each of the one or more release sheets via a second adhesive portion.
The individual package has a longitudinal direction and a width direction in the unfolded state.
The absorbent article has a wide portion on the anterior or posterior side in the longitudinal direction.
Width direction end release sheets constituting the one or more release sheets are arranged at both ends of the wide portion in the width direction.
The peeling strength when the width direction end release sheet is peeled from the individually wrapped sheet in the width direction is when the absorbent article is separated from the width direction end release sheet in the width direction. Individual packaging of absorbent articles that is greater than the peel strength. The outer edge of the second adhesive portion in contact with the width direction end release sheet is at the same position as or inside the outer edge of the first adhesive portion in contact with the width direction end release sheet. The individual package of the absorbent article according to claim 1, which is arranged in. The absorbent article comprises an absorber and a functional layer containing a functional agent.
The functional layer is arranged in the wide portion,
In the deployed state,
The individual package of an absorbent article according to claim 1 or 2, wherein the functional layer is arranged adjacent to one side in the longitudinal direction of the absorber. The absorbent article further comprises a liquid permeable surface sheet.
In the deployed state,
The ratio of the maximum longitudinal dimension of the surface sheet to the maximum longitudinal dimension of the absorber is compared to the ratio of the maximum widthwise dimension of the surface sheet to the maximum widthwise dimension of the absorber. A large individual package of the absorbent article according to claim 3. The second adhesive portion in contact with the widthwise end release sheet is divided into a plurality of portions, and the plurality of existing second adhesive portions are arranged substantially parallel to each other along the longitudinal direction. An individual package of an absorbent article according to claim 3 or 4. The absorbent article according to claim 5, wherein the total area of the second adhesive portion in contact with the width direction end release sheet is 60% or less with respect to the area of the width direction end release sheet. Individual packaging. The individual package of an absorbent article according to any one of claims 1 to 6, wherein the rigidity of the release sheet is larger than the rigidity of the individual package sheet. The longitudinal outer edge of the second adhesive portion, which is arranged at both ends in the longitudinal direction and is in contact with the longitudinal end release sheet constituting the one or more release sheets, is in contact with the longitudinal end release sheet. The individual package of an absorbent article according to any one of claims 1 to 7, which is arranged at the same position as or inside the outer edge of the first adhesive portion in the longitudinal direction. The individual package of the absorbent article according to any one of claims 1 to 8, wherein the absorbent article has one or more fold lines extending along the longitudinal direction. The individual package is
A first width direction folding portion provided on one end side in the width direction and folded in the width direction with the first longitudinal folding line along the longitudinal direction as a base point.
A second widthwise fold portion provided on the other end side in the width direction and folded in the width direction with the second longitudinal fold line along the longitudinal direction as a base point.
In a state where the first width direction folding portion and the second width direction folding portion are folded, the longitudinal direction is provided with the first width direction folding line provided on one end side in the longitudinal direction as a base point. The first longitudinal folding part folded into
In a state where the first width direction folding portion and the second width direction folding portion are folded, the longitudinal portion is provided on the other end side in the longitudinal direction and is provided on the other end side in the longitudinal direction with the second folding line in the width direction along the width direction as a base point. The second longitudinal folding part folded in the direction,
Have,
One end of the first longitudinal folding portion is joined to the surface of the second end portion located on the opposite side of the longitudinal direction from the first end portion on the side of the first folding line in the width direction, and the second longitudinal portion is formed. An adhesive tape with the other end bonded to the surface of the directional folding part is provided.
The first longitudinal folding portion is formed in the width direction.
A pair of side portions located on both sides of the adhesive tape,
An intermediate portion located between the pair of side portions and in contact with at least one of the pair of side portions.
Including
A reinforcing member arranged on each of the pair of side portions is further provided.
The individually wrapped body of the absorbent article according to any one of claims 1 to 9.

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