CN108135749B

CN108135749B - Absorbent article package

Info

Publication number: CN108135749B
Application number: CN201680055244.7A
Authority: CN
Inventors: 寺杣望; 工藤淳
Original assignee: Unicharm Corp
Current assignee: Unicharm Corp
Priority date: 2015-09-30
Filing date: 2016-07-12
Publication date: 2020-09-04
Anticipated expiration: 2036-07-12
Also published as: CN108135749A; JP6073435B1; JP2017064102A; WO2017056633A1

Abstract

An absorbent article package obtained by overlapping an absorbent article (10) and a package sheet (20) in the thickness direction, wherein a 1 st widthwise folded part (51) and a 2 nd widthwise folded part (52) are joined by a 1 st bonding region (151), a 1 st lengthwise folded part (61) and a 2 nd lengthwise folded part (62) are joined by a 2 nd bonding region (152) along the width direction, a pulling region (62PR) that is pulled when the absorbent article package in a folded state is to be unfolded is provided in the 2 nd lengthwise folded part (62), and the shortest distance from the pulling region (62PR) to a reference end (152Es) of the 2 nd bonding region (152) through the 1 st lengthwise fold (FL1) is shorter than the shortest distance from the pulling region (62PR) to the reference end (152Es) through the 2 nd lengthwise fold (FL2) on the package sheet (20) .

Description

Absorbent article package

Technical Field

The present invention relates to an absorbent article package.

Background

Conventionally, an absorbent article package in which absorbent articles such as sanitary napkins and incontinence pads are individually packaged and folded by a packaging sheet has been widely known. When using the absorbent article in the folded and packaged state, the user needs to open and unfold the package body and take out the absorbent article packaged in the package sheet. For example, patent document 1 discloses the following technique: by providing a notch in a predetermined region of the package sheet and pulling the portion of the absorbent article exposed from the notch, the package body can be opened and the absorbent article can be easily taken out.

Documents of the prior art

Patent document

Patent document 1: japanese patent No. 450126

Disclosure of Invention

Problems to be solved by the invention

However, the absorbent article package disclosed in patent document 1 has a structure in which a part of the absorbent article is exposed from the package sheet, and therefore, the user may touch the absorbent article with his or her hands before using the absorbent article, which causes a problem in terms of hygiene.

The present invention has been made in view of the above-described problems, and an object thereof is to provide a sanitary absorbent article package in which an opening operation can be easily performed.

Means for solving the problems

A main invention for achieving the above object is an absorbent article package including a longitudinal direction, a width direction, and a thickness direction intersecting each other, the absorbent article package being obtained by overlapping an absorbent article and a package sheet in the thickness direction, the absorbent article package comprising: a 1 st widthwise folded portion which is folded in the widthwise direction with a 1 st lengthwise fold line provided at one end side in the widthwise direction and extending along the lengthwise direction as a base point; and a 2 nd widthwise folded portion which is folded in the widthwise direction with a 2 nd lengthwise fold line provided on the other end side in the widthwise direction and along the lengthwise direction as a starting point, the absorbent article package having a 1 st overlapped portion in which at least a part of the 2 nd widthwise folded portion is overlapped on the outer side of the 1 st widthwise folded portion in the thickness direction of the packaging sheet, the 1 st widthwise folded portion and the 2 nd widthwise folded portion being joined by a 1 st adhesive region along the lengthwise direction in at least a part of the 1 st overlapped portion, the absorbent article package comprising: a 1 st longitudinal folded portion that is folded in the longitudinal direction with a 1 st widthwise fold line that is provided on one end side in the longitudinal direction and that runs along the widthwise direction as a base point; and a 2 nd longitudinal folded portion which is folded in the longitudinal direction with a 2 nd widthwise fold line as a base point, the 2 nd longitudinal folded portion being provided on the other end side in the longitudinal direction, the absorbent article package having a 2 nd overlapped portion in which at least a part of the 2 nd longitudinal folded portion is overlapped on an outer side in the thickness direction of the 1 st longitudinal folded portion of the packaging sheet, the 1 st longitudinal folded portion and the 2 nd longitudinal folded portion being joined by a 2 nd adhesive region along the width direction in at least a part of the 2 nd overlapped portion, a pulling region in which the absorbent article package in a folded state is pulled when the absorbent article package is to be unfolded being provided in a central portion in the width direction of the 2 nd overlapped portion in the 2 nd longitudinal folded portion of the packaging sheet, the reference end is one of both ends in the width direction of the 2 nd bonding region that is closer to the 1 st bonding region in the width direction, and a shortest distance from the pulling region to the reference end via the 1 st longitudinal fold on the wrapping sheet is shorter than a shortest distance from the pulling region to the reference end via the 2 nd longitudinal fold on the wrapping sheet.

Other features of the present invention will be apparent from the description of the present specification and the accompanying drawings.

ADVANTAGEOUS EFFECTS OF INVENTION

According to the present invention, a sanitary absorbent article package capable of facilitating opening operation can be provided.

Drawings

Fig. 1 is a schematic plan view of a sanitary napkin 1 in a developed state as viewed from the skin side.

Fig. 2 is a schematic sectional view showing a section a-a of fig. 1.

Fig. 3A to 3F are views for explaining the operation when the sanitary napkin 1 is folded and formed into an individually packaged state.

Fig. 4 is a schematic plan view showing a state of the sanitary napkin 1 folded in the width direction as viewed from the skin side.

Fig. 5 is a schematic plan view showing a state in which a part of the 2 nd widthwise folded portion 52 is unfolded.

Fig. 6 (a) is a schematic plan view of the individually packaged sanitary napkin 1 as viewed from the skin side. Fig. 6 (B) is a schematic cross-sectional view showing a B-B cross-section of fig. 6 (a).

Fig. 7A to 7D are schematic cross-sectional views illustrating how the 2 nd longitudinal folded portion 62 is unfolded with respect to the individually packaged sanitary napkin 1.

Detailed Description

At least the following matters will be apparent from the description of the present specification and the accompanying drawings.

An absorbent article package having a longitudinal direction, a width direction, and a thickness direction intersecting with each other, the absorbent article package being obtained by overlapping an absorbent article and a package sheet in the thickness direction, the absorbent article package comprising: a 1 st widthwise folded portion which is folded in the widthwise direction with a 1 st lengthwise fold line provided at one end side in the widthwise direction and extending along the lengthwise direction as a base point; and a 2 nd widthwise folded portion which is folded in the widthwise direction with a 2 nd lengthwise fold line provided on the other end side in the widthwise direction and along the lengthwise direction as a starting point, the absorbent article package having a 1 st overlapped portion in which at least a part of the 2 nd widthwise folded portion is overlapped on the outer side of the 1 st widthwise folded portion in the thickness direction of the packaging sheet, the 1 st widthwise folded portion and the 2 nd widthwise folded portion being joined by a 1 st adhesive region along the lengthwise direction in at least a part of the 1 st overlapped portion, the absorbent article package comprising: a 1 st longitudinal folded portion that is folded in the longitudinal direction with a 1 st widthwise fold line that is provided on one end side in the longitudinal direction and that runs along the widthwise direction as a base point; and a 2 nd longitudinal folded portion which is folded in the longitudinal direction with a 2 nd widthwise fold line as a base point, the 2 nd longitudinal folded portion being provided on the other end side in the longitudinal direction, the absorbent article package having a 2 nd overlapped portion in which at least a part of the 2 nd longitudinal folded portion is overlapped on an outer side in the thickness direction of the 1 st longitudinal folded portion of the packaging sheet, the 1 st longitudinal folded portion and the 2 nd longitudinal folded portion being joined by a 2 nd adhesive region along the width direction in at least a part of the 2 nd overlapped portion, a pulling region in which the absorbent article package in a folded state is pulled when the absorbent article package is to be unfolded being provided in a central portion in the width direction of the 2 nd overlapped portion in the 2 nd longitudinal folded portion of the packaging sheet, the reference end is one of both ends in the width direction of the 2 nd bonding region that is closer to the 1 st bonding region in the width direction, and a shortest distance from the pulling region to the reference end via the 1 st longitudinal fold on the wrapping sheet is shorter than a shortest distance from the pulling region to the reference end via the 2 nd longitudinal fold on the wrapping sheet.

With such an absorbent article package, when the 2 nd adhesive region is peeled off and the 2 nd longitudinal folded portion is unfolded, a part of the 1 st adhesive region is peeled off and a part of the 2 nd transverse folded portion is also unfolded. The user can easily open the absorbent article package by pinching and pulling a part of the unfolded 2 nd widthwise folded portion. Before the opening operation is started, that is, before the absorbent article is used, the entire absorbent article is wrapped in the wrapping sheet and is not exposed to the outside, so that the absorbent article can be used sanitarily.

In the absorbent article package, it is desirable that the strength of bonding the 1 st longitudinal folded portion and the 2 nd longitudinal folded portion by the 2 nd bonding region is higher than the strength of bonding the 1 st width folded portion and the 2 nd width folded portion by the 1 st bonding region.

With such an absorbent article package, the 1 st adhesive region is peeled off preferentially over the 2 nd adhesive region. Therefore, in the operation of peeling the 2 nd adhesive region, a part of the 2 nd widthwise folded part joined to the 1 st widthwise folded part by the 1 st adhesive region can be easily peeled. This allows the user to easily unfold the 2 nd widthwise folded part starting from the partially peeled part. That is, the operation of opening the absorbent article package can be easily performed.

In the absorbent article package, it is desirable that the 1 st adhesive region and the 2 nd adhesive region have an overlapping portion in the width direction.

With such an absorbent article package, the adhesive force of the 2 nd adhesive region acts against the force pulling the 1 st adhesive region toward the skin side in the portion where the 1 st adhesive region and the 2 nd adhesive region overlap in the width direction, and the force in the thickness direction (the force peeling the 1 st adhesive region) is made to easily act on the 1 st adhesive region. Therefore, in the operation of peeling the 2 nd bonded region, the 1 st bonded region can be peeled more easily. This makes it possible to easily open the absorbent article package.

In the absorbent article package, it is desirable that the pulling region is provided at an end portion of the 2 nd longitudinal folded portion in the longitudinal direction on a side opposite to a side on which the 2 nd widthwise fold is provided.

In the absorbent article package, the pulling region is provided at a position as far as possible from the 2 nd widthwise fold, so that a larger moment can be generated when the pulling region is pulled to unfold the 2 nd lengthwise fold in the lengthwise direction. This enables the user to open the absorbent article package with less force.

In the absorbent article package, it is preferable that the 2 nd adhesive region is provided at a position overlapping with a position where the pulling region is provided in the longitudinal direction.

With such an absorbent article package, the distance from the pulling region to the reference end of the 2 nd adhesive region via the 1 st longitudinal fold on the wrapping sheet can be made the shortest. Thus, the 1 st bonded region is more easily peeled off in the peeling operation of the 2 nd bonded region. Therefore, the user can more easily perform the operation of opening the absorbent article package.

In the absorbent article package, it is preferable that the 1 st adhesive region is provided closer to the reference end than a central portion of the 2 nd longitudinally folded portion in the width direction.

With such an absorbent article package, the timing at which the peeling of the 1 st adhesive region starts can be made earlier in the operation of peeling the 2 nd adhesive region. This enables the 1 st bonded region to be peeled off before the 2 nd bonded region is completely peeled off. By peeling off the 1 st adhesive region, the user can easily unfold the 2 nd widthwise folded part.

In the absorbent article package, it is desirable that the package sheet has an adhesive portion on a non-skin-side surface in the thickness direction, and the adhesive portion and the 2 nd adhesive region do not overlap in the longitudinal direction.

With such an absorbent article package, in the operation of peeling the 2 nd adhesive region, it is easy to suppress the adhesive portion (e.g., the adhesive portion for underwear fixation) provided in the package sheet from being peeled off earlier than the 2 nd adhesive region. This suppresses the adhesion of dirt to the surface of the underwear-fixing adhesive section.

In the absorbent article package, it is desirable that a guide tape which is pulled when the 2 nd longitudinal direction folded portion folded in the longitudinal direction is to be unfolded is provided in the pulling region.

With such an absorbent article package, the user can more easily pull the pull-out region by pinching and pulling the guide tape, as compared with the case where the user directly pinches and pulls the packaging sheet. This makes it possible to more easily perform the operation of opening the absorbent article package.

Embodiments of the present invention are described in detail below with reference to the accompanying drawings

< construction of absorbent article Package >

A sanitary napkin 1 (hereinafter, also simply referred to as a sanitary napkin 1) will be described as an example of the absorbent article package of the present embodiment. The sanitary napkin 1 will be described below, but the absorbent article package of the present embodiment includes a so-called panty liner (e.g., panty liner), an incontinence pad, and the like, and is not limited to a sanitary napkin.

Fig. 1 is a schematic plan view of a sanitary napkin 1 in a developed state as viewed from the skin side. Fig. 2 is a schematic sectional view showing a section a-a of fig. 1.

As shown in fig. 1 and 2, the sanitary napkin 1 of the present embodiment has an absorbent article 10, a wrapping sheet 20, a separator 30, and a guide tape 40. The separator 30 and the guide tape 40 are not essential components, and the sanitary napkin 1 may be configured only from the absorbent article 10 and the packaging sheet 20. In the following description, each direction is defined as shown in fig. 1. That is, a direction along the product longitudinal direction of the sanitary napkin 1 (absorbent article 10) is referred to as a "longitudinal direction". The length direction has a "front side" and a "back side". The "front side" is a direction toward the abdomen of the user when the absorbent article 10 is used, and the "rear side" is a direction toward the back of the user when the absorbent article 10 is used. In addition, a direction orthogonal to the longitudinal direction, i.e., a direction along the product width direction is referred to as a "width direction". The direction orthogonal to the longitudinal direction and the width direction is referred to as the "thickness direction", the side that comes into contact with the skin of the user (wearer) when the absorbent article 10 is used (worn) is referred to as the "skin side", and the opposite side is referred to as the "non-skin side".

The absorbent article 10 includes an absorbent body 11 for absorbing liquid, a front sheet 12 covering the absorbent body 11 from the skin side of the user, and a back sheet 13 covering the absorbent body 11 from the non-skin side of the user (see fig. 2).

The absorbent body 11 is a long member long in the longitudinal direction, and contains hydrophilic fibers, pulp, and the like, and can efficiently absorb and hold liquid such as body fluid. The front layer 12 is a liquid-permeable sheet member that transmits liquid such as body fluid, and is formed of, for example, nonwoven fabric. The back sheet 13 is a liquid-impermeable sheet member, and is formed of, for example, a film mainly composed of polyethylene, propylene, or the like.

In fig. 1, a wing portion 14 is formed so that the longitudinal center portion of the absorbent article 10 extends outward in the width direction. The flap portions 14 are fixing portions used when the sanitary napkin 1 is placed and fixed on underwear (not shown) when the sanitary napkin 1 is used. However, the wing portion 14 may not be necessarily provided.

The packaging sheet 20 is a sheet member for individually packaging the absorbent article 10. The wrapping sheet 20 is joined to the absorbent article 10 in a state of overlapping the absorbent article 10 in the thickness direction before the sanitary napkin 1 is used, and is detached from the absorbent article 10 when the sanitary napkin 1 is used. As shown in fig. 2, the absorbent article 10 and the package sheet 20 are joined to each other via the separator 30 by an adhesive portion 131 and an adhesive portion 132 provided with an adhesive such as a hot melt adhesive. When the absorbent article 10 is used, the absorbent article 10 can be fixed to underwear by the adhesive portion 131. As a material of the packaging sheet 20, for example, various films such as a plastic film and a nylon film, a nonwoven fabric, a film obtained by laminating a nonwoven fabric, and the like are used. The package sheet 20 used in the present embodiment is made of a translucent material, and a user can check a part of the absorbent article 10 inside through the package sheet 20 in a state where the absorbent article 10 is packaged.

The separator 30 is a sheet member disposed between the back sheet 13 of the absorbent article 10 and the package sheet 20 (see fig. 2). The separator 30 is applied with a peeling process using silicone resin or the like on its surface, and is bonded to the adhesive portion 131 provided between the separator 30 and the absorbent article 10 in a peelable manner. Since the peeling process is well known, the description thereof is omitted. By disposing such a separator 30, the following is suppressed from occurring before the absorbent article 10 is used: the case where the adhesive forming the adhesive portion 131 adheres to the packaging sheet 20, the case where the adhesiveness of the adhesive portion 131 is weakened; and protects the adhesive portion 131. When the absorbent article 10 is used, the separator 30 is peeled off from the adhesive portion 131, and the absorbent article 10 is fixed to underwear or the like of a user by the adhesive force of the adhesive portion 131.

The guide tape 40 is a pulling portion to be pulled by a user when the sanitary napkin 1 in a folded state is to be unfolded (opened). The guide tape 40 will be described later.

< independent packaging of sanitary napkin 1>

The sanitary napkin 1 of the present embodiment is formed with one or more longitudinal folds along the longitudinal direction and one or more transverse folds along the transverse direction. The sanitary napkin 1 is individually packaged by folding the absorbent article 10 and the packaging sheet 20 (and the separator 30) in the longitudinal direction and the width direction with these creases as base points. Fig. 3A to 3F are views for explaining the operation when the sanitary napkin 1 is folded and formed into an individually packaged state.

Fig. 3A is a plan view showing a state where the sanitary napkin 1 is unfolded, and corresponds to the state shown in fig. 1. The sanitary napkin 1 of the present embodiment has, as longitudinal folds along the longitudinal direction, a 1 st longitudinal fold FL1 provided on one end side in the width direction (left side in fig. 3A) and a 2 nd longitudinal fold FL2 provided on the other end side in the width direction (right side in fig. 3A). Further, the widthwise creases along the widthwise direction include a 1 st widthwise crease FW1 provided on one end side (rear side in fig. 3A) in the lengthwise direction and a 2 nd widthwise crease FW2 provided on the other end side (front side in fig. 3A) in the lengthwise direction.

When the sanitary napkin 1 is folded, first, the absorbent article 10 and the packaging sheet 20 in a state of being superposed in the thickness direction are folded such that one end side thereof is folded inward in the width direction with the 1 st longitudinal fold FL1 as a base point. Hereinafter, the folded portion is referred to as a 1 st widthwise folded portion 51 (see fig. 3B).

Next, the other end sides of the absorbent article 10 and the package sheet 20 are folded inward in the width direction with the 2 nd longitudinal fold line FL2 as a base point. Hereinafter, the folded portion is referred to as a 2 nd widthwise folded portion 52 (see fig. 3C).

The 1 st overlapping portion 55 is formed by folding both ends in the width direction of the sanitary napkin 1, and a region of a part of the 2 nd widthwise folded portion 52 overlaps the outer side (the skin side in fig. 3C) in the thickness direction of the 1 st widthwise folded portion 51 in the 1 st overlapping portion 55. The 1 st overlapping portion 55 is a longitudinal region along the longitudinal direction in fig. 3C.

A 1 st adhesive region 151 is formed in at least a part of the 1 st overlapping portion 55. The 1 st adhesive region 151 is formed by applying an adhesive such as a hot melt adhesive between the 1 st widthwise folded portion 51 and the 2 nd widthwise folded portion 52 in the thickness direction, and the 1 st widthwise folded portion 51 and the 2 nd widthwise folded portion 52 are joined in the thickness direction by the 1 st adhesive region 151. In the present embodiment, as shown by hatching in fig. 3C, the 1 st adhesive region 151 is formed in a long strip shape along the longitudinal direction. Thus, the 2 nd widthwise folded portion 52 is joined to the skin side of the 1 st widthwise folded portion 51 over substantially the entire longitudinal range of the 1 st overlapped portion 55, and the widthwise folded state of the sanitary napkin 1 is easily maintained. The 1 st adhesive region 151 is not limited to the band-like region shown in fig. 3C. For example, a plurality of adhesive applying portions (e.g., spot-like adhesive applying portions) obtained by applying an adhesive in a predetermined range may be arranged in the longitudinal direction to form the 1 st adhesive region 151.

In the 1 st adhesive region 151, the 1 st width direction folded portion 51 and the 2 nd width direction folded portion 52 are bonded so as to be peelable, and when the sanitary napkin 1 is used, the user can peel the adhesive portion and unfold the 1 st width direction folded portion 51 and the 2 nd width direction folded portion 52 as shown in fig. 3A.

Next, the absorbent article 10 and the package sheet 20 are folded with one end side thereof toward the inside in the longitudinal direction with the 1 st widthwise fold FW1 as a base point. Hereinafter, the folded portion is referred to as a 1 st longitudinal folded portion 61 (see fig. 3D).

Next, the other end sides of the absorbent article 10 and the package sheet 20 are folded inward in the width direction with the 2 nd widthwise fold line FW2 as a base point. Hereinafter, the folded portion is referred to as a 2 nd longitudinal folded portion 62 (see fig. 3E). The 2 nd overlapping portion 65 is formed by folding both ends in the longitudinal direction of the sanitary napkin 1, and a region of a part of the 2 nd longitudinal folded portion 62 overlaps the outer side (the skin side in fig. 3E) in the thickness direction of the 1 st longitudinal folded portion 61 in the 2 nd overlapping portion 65.

A 2 nd adhesion region 152 is formed in at least a part of the 2 nd overlapping portion 65. The 2 nd adhesion region 152 is formed by applying an adhesive such as a hot melt adhesive between the 1 st longitudinal folded portion 61 and the 2 nd longitudinal folded portion 62 in the thickness direction, and the 1 st longitudinal folded portion 61 and the 2 nd longitudinal folded portion 62 are joined in the thickness direction by the 2 nd adhesion region 152. In the present embodiment, as shown by hatching in fig. 3E, the 2 nd adhesion region 152 is formed in a band shape that is laterally long in the width direction. Thus, the 2 nd longitudinally folded portion 62 is joined to the skin side of the 1 st longitudinally folded portion 61 over substantially the entire width of the 2 nd overlapping portion 65, and the folded state in the longitudinal direction of the sanitary napkin 1 is easily maintained. The 2 nd adhesion region 152 is not limited to the band-shaped region shown in fig. 3E. For example, a plurality of adhesive applying portions (e.g., dot-shaped adhesive applying portions) obtained by applying an adhesive in a predetermined range may be arranged in the width direction to form the 2 nd adhesion region 152.

In the 2 nd adhesive region 152, the 1 st longitudinal folded portion 61 and the 2 nd longitudinal folded portion 62 are bonded so as to be peelable, and when the sanitary napkin 1 is used, the user can peel off the adhesive portion and unfold the 1 st longitudinal folded portion 61 and the 2 nd longitudinal folded portion 62 as shown in fig. 3C.

In the sanitary napkin 1 in the folded state, a pull-up region 62PR is provided in the center in the width direction of the 2 nd overlapping portion 65 on the skin-side surface of the 2 nd longitudinally folded portion 62 (see fig. 3F). The pull region 62PR is a region to be pulled by a user when the sanitary napkin 1 is to be unfolded from a folded state (i.e., an individually packaged state) in use of the sanitary napkin 1. The user can peel the 2 nd adhesive region 152 and unfold the folded 2 nd longitudinal folded portion 62 by pulling the pulling region 62PR toward the skin side in the thickness direction and the front side in the longitudinal direction. It is desirable that the position of the pulling region 62PR in the longitudinal direction is closer to the end opposite to the 2 nd widthwise fold FW2 than the center of the 2 nd lengthwise folded portion 62 in the longitudinal direction. This is because when the pulling region 62PR is pulled, the greater the distance from the 2 nd widthwise fold FW2, the greater the moment generated, and therefore the 2 nd lengthwise folded portion 62 is easily unfolded.

The pulling region 62PR is provided with a guide tape 40. The guide tape 40 is a pulling assisting member for easily pulling the pull-out region 62PR, and the user can easily pull the pull-out region 62PR by pulling the guide tape 40 with a finger. The guide tape 40 of the present embodiment is provided at the widthwise central portion of the sanitary napkin 1 so as to straddle the boundary between the 1 st lengthwise folded portion 61 and the 2 nd lengthwise folded portion 62 in the lengthwise direction. In fig. 3F, a region on the front side in the longitudinal direction of the guide tape 40 is firmly joined to the pulling region 62PR of the 2 nd longitudinal folded portion 62. On the other hand, the region on the rear side in the longitudinal direction of the guide tape 40 is attached to the skin-side surface of the 1 st longitudinal folded portion 61 so as to be peelable, and the tip end portion (the rear end in the longitudinal direction in fig. 3F) is not joined to the 1 st longitudinal folded portion 61, which is a so-called adhesive-free edge. Thus, the user can easily pull the guide tape 40 by pinching the leading end portion (the rear end portion in the longitudinal direction) of the guide tape 40. However, the user may not provide the guide tape 40 but provide another auxiliary pulling member, or may not provide the auxiliary pulling member and directly pinch the packaging sheet 20 to pull the pulling region 62 PR.

In the manufacturing process, the sanitary napkin 1 is folded by the operation described in fig. 3A to 3F, and the absorbent article 10 is wrapped in the wrapping sheet 20, thereby forming an "individually wrapped state". In such an individually packaged state, the sanitary napkin 1 is small in size and less likely to increase in volume as compared with the state in which it is unfolded into a flat state (fig. 3A), and is distributed on the market in this state and carried by the user. In such an individually packaged state, the absorbent article 10 is not exposed to the outside of the packaging sheet 20, and therefore the absorbent article 10 can be used sanitarily, and the user can carry the sanitary napkin 1 in a state where the absorbent article 10 is not seen by others.

When the sanitary napkin 1 is used, the sanitary napkin 1 is unfolded from the individually packaged state to the flat state by performing the above-described folding operation in the reverse procedure. That is, the folded

portions

62, 61, 52, and 51 are unfolded in the order of fig. 3F to 3A to be opened. Then, the absorbent article 10 can be used by detaching the wrapping sheet 20 (and the separator 30) from the absorbent article 10.

< opening of individually packaged sanitary napkin 1>

When the sanitary napkin 1 is opened and unfolded from the individually packaged state, the 2 nd longitudinal folded portion 62 and the 1 st longitudinal folded portion 61 can be simply unfolded in the longitudinal direction by pulling the pulling region 62PR with the guide tape 40. On the other hand, when the sanitary napkin 1 is unfolded in the width direction, the 2 nd widthwise folded portion 52 is difficult to be unfolded because a pulling aid such as the guide tape 40 is not provided in the 2 nd widthwise folded portion 52.

Fig. 4 is a schematic plan view showing a state of the sanitary napkin 1 folded in the width direction as viewed from the skin side. Fig. 4 corresponds to the state of fig. 3C, and shows a state in which the 1 st longitudinal direction folded portion 61 and the 2 nd longitudinal direction folded portion 62 are unfolded and the 1 st width direction folded portion 51 and the 2 nd width direction folded portion 52 are formed. In fig. 4, a tear seam 52E is provided at a portion of the 2 nd widthwise folded portion 52 at the widthwise end thereof, which is a boundary with the 1 st widthwise folded portion 51, and the user can unfold the sanitary napkin 1 in the widthwise direction from the tear seam 52E. However, since the 1 st adhesive region 151 formed in the vicinity of the opening seal 52E joins the 1 st widthwise folded part 51 and the 2 nd widthwise folded part 52, it is difficult to open the opening seal 52E without the above-described pulling assistance member. In addition, there are also cases where: the position of the opening 52E is difficult to recognize because the 1 st widthwise folded portion 51 and the 2 nd widthwise folded portion 52 are formed in the same color.

Therefore, in the sanitary napkin 1 of the present embodiment, the user pulls the pulling region 62PR (the guide tape 40), and the user peels off the 2 nd bonding region 152 and unfolds the 2 nd longitudinal folded portion 62, and in conjunction with this, peels off a part of the 1 st bonding region 151 and unfolds a part of the 2 nd transverse folded portion 52. Fig. 5 is a schematic plan view showing a state in which a part of the 2 nd widthwise folded portion 52 is unfolded. In fig. 5, a part of the 1 st adhesive region 151 is peeled off and a part of the opening seal 52E is rolled up in a region on the front side in the longitudinal direction of the 2 nd widthwise folded part 52. The user can easily unfold the 2 nd widthwise folded portion 52 with the portion of the opening seal 52E rolled up as a starting point. Next, the operation of unfolding a part of the 2 nd widthwise folding portion 52 as shown in fig. 5 will be described.

First, the structure of the individually packaged sanitary napkin 1 will be specifically described. Fig. 6 (a) is a schematic plan view of the individually packaged sanitary napkin 1 as viewed from the skin side. Fig. 6 (B) is a schematic cross-sectional view showing a B-B cross-section of fig. 6 (a). The B-B cross section is a cross section of a position in the longitudinal direction where the 2 nd adhesion region 152 is formed. Fig. 6 (B) mainly shows the cross-sectional structure of the 2 nd longitudinal folded portion 62, and omits the structure of a part of the 1 st longitudinal folded portion 61 and other structures such as the absorbent article 10.

As shown in fig. 6 (a), in the individually packaged sanitary napkin 1, the 1 st width direction folded portion 51 and the 2 nd width direction folded portion 52 are joined in the thickness direction by the 1 st adhesive region 151 provided along the longitudinal direction at the 1 st overlapped portion 55. The 1 st adhesive region 151 is formed at a position shifted to either the left or right from the center in the width direction. In the present embodiment, the 1 st adhesive region 151 is formed at a position closer to the width direction end (the opening 52E) of the 2 nd widthwise folding portion 52 than the widthwise center.

In the individually packaged sanitary napkin 1, the 1 st longitudinal folded portion 61 and the 2 nd longitudinal folded portion 62 are joined in the thickness direction by the 2 nd adhesive region 152 provided in the 2 nd overlapping portion 65 along the width direction. In fig. 6 (B), the 2 nd adhesion region 152 is formed to have a portion overlapping with the 1 st adhesion region 151 in the thickness direction.

In addition, in the 1 st bonding region 151 and the 2 nd bonding region 152, the bonding regions are formed such that the bonding strength of the 2 nd bonding region 152 is higher than that of the 1 st bonding region 151. That is, the 1 st widthwise folded part 51 and the 2 nd widthwise folded part 52 joined by the 1 st adhesive region 151 are more easily peeled than the 1 st lengthwise folded part 61 and the 2 nd lengthwise folded part 62 joined by the 2 nd adhesive region 152.

Here, the "adhesion strength" is expressed by the magnitude of a force that separates two members joined by an adhesion region (for example, the 1 st widthwise fold 51 and the 2 nd widthwise fold 52 joined by the 1 st adhesion region 151) when they are pulled in a direction to separate them from each other. In order to measure the adhesive strength, first, a measurement target portion (two members joined by an adhesive region) is cut out to a predetermined size to prepare a test piece. Then, a grip for pulling the test piece in the peeling direction is provided using a strong adhesive tape or the like, the grip is set in a tensile testing machine, the load is gradually increased from zero to pull the test piece in the peeling direction, and the magnitude of the load is measured.

In the present embodiment, the bonding strength is determined so that the material strength of the packaging sheet 20 is higher than the bonding strength of the 1 st bonding region 151 and the 2 nd bonding region 152. Therefore, in the opening work of the sanitary napkin 1 and the test of the adhesive strength, the problem that the packaging sheet 20 is broken before the 1 st adhesive region 151 and the 2 nd adhesive region 152 are peeled off is hard to occur.

Further, La represents the shortest distance from the position of the pull area 62PR on the wrapping sheet 20 to the position of the reference end 152Es via the 1 st longitudinal fold FL1, with one of the two widthwise ends of the 2 nd adhesive area 152 that is closer to the 1 st adhesive area 151 in the widthwise direction being the reference end 152 Es. Similarly, Lb is the one of the widthwise opposite ends of the 2 nd adhesive region 152 which is distant from the 1 st adhesive region 151 in the widthwise direction, and Lb is the shortest distance from the position of the pull region 62PR on the wrapping sheet 20 to the position of the reference end 152Es via the 2 nd longitudinal fold FL 2. As will be described later in detail, in the present embodiment, as shown in fig. 6B, the distance La is shorter than the distance Lb (La < Lb), so that a part of the 2 nd widthwise folded portion 52 can be unfolded in the operation of unfolding the 2 nd lengthwise folded portion 62. In the case where the 2 nd adhesion region 152 is formed of a plurality of adhesive application portions arranged in the width direction, the adhesive application portions provided at the positions of both ends in the width direction become the reference end 152Es and the end 152Eo, respectively.

Next, the operation of unfolding a part of the 2 nd widthwise folded portion 52 in conjunction with the unfolding (unsealing) of the 2 nd lengthwise folded portion 62 of the individually packaged sanitary napkin 1 will be specifically described. Fig. 7A to 7D are schematic cross-sectional views illustrating how the 2 nd longitudinal folded portion 62 is unfolded with respect to the individually packaged sanitary napkin 1. Fig. 7A to 7D show cross sections of the sanitary napkin 1 at positions where the No. 2 adhesive regions 152 are formed in the longitudinal direction, as in fig. 6 (B).

As described above, when the sanitary napkin 1 is unfolded, first, the pull-out region 62PR (the guide tape 40) is pulled outward in the thickness direction (toward the skin), and the 2 nd adhesive region 152 is peeled off to unfold the 2 nd longitudinal folded portion 62 (see fig. 3E).

When the pull-tab region 62PR is pulled toward the skin side, the skin-side surface of the 2 nd longitudinal folded portion 62 is pulled toward the skin side with the pull-tab region 62PR as a fulcrum. On the other hand, since the non-skin-side surface of the 2 nd longitudinal folded portion 62 is bonded to the 1 st longitudinal folded portion 61 by the 2 nd bonding region 152, the 2 nd longitudinal folded portion 62 is deformed into a substantially isosceles triangle shape in a cross-sectional view having the pull-up region 62PR and the both width-direction end portions 152Es and 152Eo of the 2 nd longitudinal folded portion 62 as vertexes as shown in fig. 7A. In the state of fig. 7A, the portion of the 2 nd longitudinal folded portion 62 having the distance La between the pulling region 62PR and the reference end 152Es corresponds to one of the hypotenuses of the triangle, and the portion joined by the 2 nd adhesive region 152 corresponds to the base of the triangle. Hereinafter, a portion on the side where the 1 st fold FL1 is provided with respect to the pulling region 62PR in the width direction of the 2 nd longitudinal folded portion 62 is referred to as La side. Similarly, a portion on the side where the 2 nd fold FL2 is provided with respect to the pulling region 62PR in the width direction of the 2 nd longitudinal folded portion 62 is referred to as an Lb side.

When the extensible region 62PR is pulled further toward the skin side from the state of fig. 7A, as shown in fig. 7B, a tension is generated between the extensible region 62PR and the 1 st adhesive region 151 on the La side of the 2 nd longitudinal direction folded portion 62. The pulling area 62PR of the 2 nd longitudinal folded portion 62 is pulled toward the skin side, and the non-skin side surface of the 2 nd longitudinal folded portion 62 is joined to the 1 st longitudinal folded portion 61 by the 1 st adhesive area 151 and the 2 nd adhesive area 152, thereby generating the tension. When the force for pulling the pulling region 62PR toward the skin side is greater than the adhesive strength of the 1 st adhesive region 151, the 1 st adhesive region 151 starts to peel off on the La side of the 2 nd longitudinal folded portion 62. In addition, in the present embodiment, as described above, the 2 nd adhesive region 152 has the adhesive strength higher than that of the 1 st adhesive region 151, and therefore, even if the 1 st adhesive region 151 starts to peel, the 2 nd adhesive region 152 is difficult to peel.

On the Lb side of the 2 nd longitudinal folded portion 62, first, a tension is generated between the pulling region 62PR and the end 152Eo of the 2 nd bonding region 152. The pulling area 62PR of the 2 nd longitudinal folded portion 62 is pulled toward the skin side, and the non-skin side surface of the 2 nd longitudinal folded portion 62 is joined to the 1 st longitudinal folded portion 61 by the 2 nd adhesive area 152, thereby generating the tension (see fig. 7B). When the force for pulling the pulling region 62PR toward the skin side is larger than the adhesive strength of the 2 nd adhesive region 152, the 2 nd adhesive region 152 starts to peel from the end 152Eo side toward the inside in the width direction on the Lb side of the 2 nd longitudinal direction folded portion 62.

When the pull-tab region 62PR is pulled further toward the skin side, the 1 st adhesive region 151 is completely peeled off on the La side of the 2 nd longitudinal direction folded portion 62 as shown in fig. 7C. On the other hand, on the Lb side of the 2 nd longitudinal folded portion 62, the 2 nd adhesive region 152 is gradually peeled from the end 152Eo side toward the reference end 152Es side in accordance with the pulling region 62PR being pulled toward the skin side. Then, finally, as shown in fig. 7D, the 2 nd longitudinal folded portion 62 and the 1 st longitudinal folded portion 61 are joined only at the portion of the reference end 152Es, and thereafter, the entire 2 nd adhesive region 152 is peeled off. In fig. 7D, on the Lb side of the 2 nd longitudinal folded portion 62, the distance Lb between the pull region 62PR and the reference end 152Es is defined as Lb.

As described above, in the present embodiment, the tension acts on the La side before the Lb side of the 2 nd longitudinal folded portion 62, and thus the 1 st bonded region 151 is easily peeled off from the La side before the entire 2 nd bonded region 152 is peeled off from the Lb side. That is, the distance (La) between the pull region 62PR on the La side and the reference end 152Es is shorter than the distance (Lb) between the pull region 62PR on the Lb side and the reference end 152Es (La < Lb), and thus the 1 st bonded region 151 is easily peeled off before the 2 nd bonded region 152.

As a result, the 2 nd widthwise folded part 52 joined by the 1 st adhesive region 151 is separated from the 1 st widthwise folded part 51 at the portion where the 2 nd adhesive region 152 is formed in the longitudinal direction, and a part of the 2 nd widthwise folded part 52 (opening seal 52E) is in a state of being rolled up as shown in fig. 5. The user can open the sanitary napkin 1 easily by pulling the rolled open end 52E to unfold the 2 nd widthwise folded part 52. Further, since the entire absorbent article 10 is packed in the packing sheet 20 before the sanitary napkin 1 is used, the absorbent article 10 is not exposed to the outside before use, and is sanitary.

When La is equal to or greater than Lb (La ≧ Lb), the entire 2 nd adhesion region 152 is released on the Lb side of the 2 nd longitudinal folded portion 62, and therefore slack is generated on the La side and tension is not generated, and therefore the 1 st adhesion region 151 is not released. In this case, as shown in fig. 4, since the joined state between the 2 nd widthwise folded portion 52 and the 1 st widthwise folded portion 51 is maintained, it is difficult to unfold the 2 nd widthwise folded portion 52.

< location of the adhesion region >

When a part of the 2 nd widthwise folded portion 52 is unfolded in conjunction with the operation of unfolding the 2 nd lengthwise folded portion 62, the amount of the 2 nd widthwise folded portion 52 unfolded changes depending on the positions where the 1 st bonding region 151 and the 2 nd bonding region 152 are provided.

In the present embodiment, as is clear from fig. 7A and 7B, the closer the position of the 1 st bonding region 151 in the width direction is to the reference end 152Es of the 2 nd bonding region 152, the earlier the peeling of the 1 st bonding region 151 is started. That is, it is desirable that the 1 st adhesive region 151 is provided at a position closer to the reference end 152Es than the center portion of the 2 nd longitudinally folded portion 62 in the width direction. By doing so, the 1 st adhesive region 151 is easily peeled off before the 2 nd adhesive region 152 is completely peeled off. That is, when the 2 nd longitudinal folded portion 62 is unfolded, the 2 nd widthwise folded portion 52 is more easily unfolded.

At this time, it is desirable that the position in the width direction of the 1 st bonding region 151 is as close as possible to the position in the width direction of the reference end 152Es of the 2 nd bonding region 152. With such an arrangement, the tension as described in fig. 7B can be applied between the pulling region 62PR and the 1 st bonded region 151 (reference end 152Es) at the earliest timing on the La side of the 2 nd longitudinal folded portion 62. Thus, the 1 st bonded region 151 is easily and reliably peeled off.

In addition, it is desirable that the 1 st bonding region 151 and the 2 nd bonding region 152 have an overlapping portion in the width direction. In order to peel off the 1 st adhesive region 151, it is necessary to apply a counter force that pulls the 2 nd longitudinal folded portion 62 to the non-skin side against a force that pulls the 2 nd longitudinal folded portion 62 to the skin side. Therefore, if the non-skin-side surface of the 1 st adhesive region 151 is joined to the 1 st longitudinal folded portion 61 by the 2 nd adhesive region 152 in the 2 nd longitudinal folded portion 62, the adhesive force of the 2 nd adhesive region 152 can be made to act as the counter force described above, and the 1 st adhesive region 151 can be peeled off efficiently. In the present embodiment, as shown in fig. 6 (a) and 6 (B), the 1 st adhesive region 151 is disposed at a position overlapping the 2 nd adhesive region 152 in the width direction, and therefore the 1 st adhesive region 151 is easily peeled off. However, even when the 1 st adhesive region 151 is provided at a position outside the reference end 152Es of the 2 nd adhesive region 152 in the width direction and does not have an overlapping portion, the 1 st adhesive region 151 can be peeled off.

On the other hand, the position where the 2 nd bonding region 152 is provided is preferably closer to the position where the pulling region 62PR is provided in the longitudinal direction. This is because, when the reference end 152Es, which is the end in the width direction of the 2 nd bonding region 152, and the pulling region 62PR are positioned to overlap each other in the longitudinal direction, the distance La becomes shortest, and the 1 st bonding region 151 is easily peeled off. In the present embodiment, the guide tape 40 is provided at the end in the longitudinal direction of the 2 nd longitudinal folded portion 62 (the end on the boundary with the 1 st longitudinal folded portion 61), and the pulling region 62PR is also provided in the vicinity of the end in the longitudinal direction of the 2 nd longitudinal folded portion 62. Further, as shown in fig. 5, since the 2 nd bonding region 152 is also provided in the vicinity of the end portion in the longitudinal direction of the 2 nd longitudinal folded portion 62, the 2 nd bonding region 152 and the pulling region 62PR overlap in the longitudinal direction. This shortens the distance La, and the 1 st adhesive region 151 is easily peeled off.

In the sanitary napkin 1 of the present embodiment, the package sheet 20 is provided with the adhesive portion 132 for attaching the separator 30. In the case where the separator 30 is not provided, an adhesive portion 131 for fixing the absorbent article 10 to underwear when the absorbent article 10 is used is provided in the packaging sheet 20 (see fig. 1 and 2). Desirably, the 2 nd adhesion region 152 does not overlap with the

adhesion portions

131 and 132 in the longitudinal direction. If the

adhesive sections

131 and 132 and the 2 nd adhesive region 152 are disposed at the overlapping positions in the longitudinal direction, the

adhesive sections

131 and 132 may be peeled off earlier than the 2 nd adhesive region 152 when the 2 nd longitudinal folded section 62 is unfolded by pulling the pulling region 62PR toward the skin side. In such a case, dirt may adhere to the surfaces of the

adhesive portions

131 and 132, or the 2 nd longitudinal folded portion 62 may not be properly unfolded. Therefore, in the present embodiment, in the absorbent article individual package, it is desirable that the adhesive portion provided on the non-skin-side surface of the package sheet 20 and the No. 2 adhesive region 152 do not overlap in the longitudinal direction.

Other embodiments are also possible

While the embodiments of the present invention have been described above, the above embodiments are provided to facilitate understanding of the present invention, and the present invention is not to be interpreted in a limiting manner. It is to be understood that the present invention can be modified and improved without departing from the spirit thereof, and equivalents thereof are also included in the present invention. For example, the following modifications can be made.

< sanitary napkin 1 after use >

The used sanitary napkin 1 can be safely discarded without exposing the soiled absorbent article 10 to the outside by wrapping the absorbent article 10 with the wrapping sheet 20 again. Specifically, as shown in fig. 3A to 3C, the used absorbent article 10 is overlapped with the package sheet 20 and folded in the width direction along the 1 st width direction fold line FL1 and the 2 nd width direction fold line FL 2. Then, the sanitary napkin 1 in the state of fig. 3C is rolled (kneaded) from the rear side to the front side in the longitudinal direction so that the skin side becomes the inner side, and is discarded in a compact shape. At this time, the sanitary napkin 1 can be fixed in a rolled state by utilizing the adhesiveness of the 2 nd adhesive region 152 provided in the vicinity of the front end portion in the longitudinal direction, and the rolled state can be easily maintained. Further, by utilizing the adhesiveness of the guide tape 40 provided at the front end in the longitudinal direction, the rolled state of the sanitary napkin 1 can be maintained more easily. This allows the user to dispose of the sanitary napkin 1 after use.

Description of the reference numerals

1: a sanitary napkin (sanitary napkin),

10: an absorbent article is provided with a plurality of absorbent layers,

11: absorbent body, 12: front layer, 13: reverse layer, 14: wing portion, 15: a linear compression part which is arranged at the front end of the body,

20: a packaging sheet is provided, which comprises a packaging sheet,

30: the separation part is arranged on the bottom of the container,

40: the adhesive tape is guided to the guide roller,

51: 1 st widthwise folded portion, 52: width direction folded portion 2, 52E: the opening of the seal is carried out,

55: the 1 st overlapping part of the first and second overlapping parts,

61: 1 st longitudinal folded portion, 62: a 2 nd lengthwise direction folded portion,

62 PR: the area of the pulling area is pulled,

65: the 2 nd overlapping part of the first and second bodies,

131: adhesive portion, 132: bonding portion, 133: a bonding part, a bonding layer and a bonding layer,

151: the 1 st adhesive region is formed on the first side of the substrate,

152: 2 nd adhesion region, 152 Es: reference terminal, 152 Eo: at the end of the tube,

FL 1: 1 st longitudinal fold, FL 2: the 2 nd longitudinal direction crease mark is arranged on the upper surface of the base,

FW 1: 1 st widthwise fold, FW 2: the 2 nd width direction folding line is folded,

la: the shortest distance (via 1 st lengthwise fold FL1),

lb: the shortest distance (via the 2 nd lengthwise fold FL 2).

Claims

1. An absorbent article package having a longitudinal direction, a width direction and a thickness direction intersecting each other,

an absorbent article package obtained by overlapping the absorbent article and the package sheet in the thickness direction, the absorbent article package being characterized in that,

the absorbent article package comprises: a 1 st widthwise folded portion which is folded in the widthwise direction with a 1 st lengthwise fold line provided at one end side in the widthwise direction and extending along the lengthwise direction as a base point; and a 2 nd widthwise folded portion which is folded in the widthwise direction with a 2 nd lengthwise fold line provided on the other end side in the widthwise direction and extending along the lengthwise direction as a base point,

the absorbent article package has a 1 st overlapping portion where at least a part of the 2 nd widthwise folded portion overlaps the outer side of the 1 st widthwise folded portion of the package sheet in the thickness direction, and the 1 st widthwise folded portion and the 2 nd widthwise folded portion are joined together by a 1 st adhesive region along the longitudinal direction at least a part of the 1 st overlapping portion,

the absorbent article package comprises: a 1 st longitudinal folded portion that is folded in the longitudinal direction with a 1 st widthwise fold line that is provided on one end side in the longitudinal direction and that runs along the widthwise direction as a base point; and a 2 nd lengthwise folded portion that is folded in the lengthwise direction with a 2 nd widthwise fold line that is provided on the other end side in the lengthwise direction and that runs along the widthwise direction as a base point,

the absorbent article package has a 2 nd overlapping portion in which at least a part of the 2 nd longitudinal folded portion overlaps the outer side of the 1 st longitudinal folded portion of the package sheet in the thickness direction, and the 1 st longitudinal folded portion and the 2 nd longitudinal folded portion are joined together by a 2 nd adhesive region along the width direction in at least a part of the 2 nd overlapping portion,

a pulling region that is provided in the 2 nd longitudinal folded section of the package sheet and is pulled when the absorbent article package in a folded state is to be unfolded is provided in a central portion in the width direction of the 2 nd overlapping section,

the reference end is one of both ends in the width direction of the 2 nd adhesion region that is close to the 1 st adhesion region in the width direction,

the shortest distance from the pulling region to the reference end via the 1 st longitudinal fold in the wrapping sheet is shorter than the shortest distance from the pulling region to the reference end via the 2 nd longitudinal fold in the wrapping sheet.

2. The absorbent article package of claim 1,

the strength of bonding the 1 st longitudinal folded part and the 2 nd longitudinal folded part by the 2 nd bonding region is greater than the strength of bonding the 1 st widthwise folded part and the 2 nd widthwise folded part by the 1 st bonding region.

3. The absorbent article package according to claim 1 or 2,

the 1 st bonded region and the 2 nd bonded region have an overlapping portion in the width direction.

4. The absorbent article package of claim 1,

the pulling region is provided at an end portion on a side opposite to a side where the 2 nd widthwise fold is provided in the longitudinal direction of the 2 nd lengthwise folded portion.

5. The absorbent article package of claim 1,

the 2 nd adhesion region is provided at a position overlapping with a position where the pulling region is provided in the longitudinal direction.

6. The absorbent article package of claim 1,

the 1 st adhesive region is provided closer to the reference end than a central portion of the 2 nd longitudinal folded portion in the width direction.

7. The absorbent article package of claim 1,

the packaging sheet has an adhesive portion on a non-skin-side surface in the thickness direction,

the adhesive portion and the 2 nd adhesive region do not overlap in the longitudinal direction.

8. The absorbent article package of claim 1,

the pulling region is provided with a guide tape that is pulled when the 2 nd longitudinal direction folded portion folded in the longitudinal direction is to be unfolded.