CN117750929A

CN117750929A - Absorbent article package

Info

Publication number: CN117750929A
Application number: CN202280050618.1A
Authority: CN
Inventors: 横市绫; 植田隆宏; 谷尾俊幸
Original assignee: Unicharm Corp
Current assignee: Unicharm Corp
Priority date: 2021-08-31
Filing date: 2022-08-10
Publication date: 2024-03-22
Also published as: JP2023035127A; WO2023032629A1

Abstract

An absorbent article package (1) wherein an absorbent article (10) is folded or rolled up a plurality of times while being placed on a package (21), the absorbent article having a longitudinal direction, a width direction, and a thickness direction orthogonal to each other, the width direction being a direction orthogonal to the longitudinal direction and along an imaginary line (V) passing through two points (P) furthest apart on a profile of a cross section at a center in the longitudinal direction, the both ends in the longitudinal direction being provided with joint portions (2) respectively, the packages (21) being joined to each other at the joint portions, the length in the width direction being longer than the length in the thickness direction in the center in the longitudinal direction, half of the length in the width direction being shorter than the length in the thickness direction, a direction along an outer end of the joint portions (2) located outermost in the longitudinal direction intersecting the longitudinal direction, the length in the direction along the outer end of the cross section orthogonal to the longitudinal direction being shorter than the length in the direction along the outer end at a predetermined position between the joint portions (2) of the absorbent article package.

Description

Absorbent article package

Technical Field

The present invention relates to an absorbent article package.

Background

Absorbent articles such as sanitary napkins are generally sold in the market in a state of being folded together with a package and sealing a predetermined portion of the package. Since individual packages such as sanitary napkins are often carried, compact individual packages are desired. Patent document 1 discloses a compact individual package of an absorbent article in which the absorbent article and the package are wound.

Prior art literature

Patent literature

Patent document 1: japanese patent laid-open No. 2007-97923

Disclosure of Invention

Problems to be solved by the invention

By forming the individual package of the absorbent article to be compact, as in the individual package disclosed in patent document 1, the seal portion and the portion between the seal portions are cylindrical, and therefore there is a risk that: the individual package of the absorbent article is liable to roll during placement or is difficult to grasp by the user of the absorbent article, and the individual package of the absorbent article is inadvertently dropped, resulting in an unhygienic state.

The present invention has been made in view of the above-described problems, and an object thereof is to provide an absorbent article package that is easy to hold and easy to keep sanitary.

Solution for solving the problem

The main invention for achieving the above object is an absorbent article package comprising: an absorbent article; and a package for packaging the absorbent article, wherein the absorbent article is folded or rolled up a plurality of times while being placed on an inner surface of the package, the absorbent article has a longitudinal direction orthogonal to the longitudinal direction, a width direction and a thickness direction, the width direction is a direction along an imaginary line passing through two points farthest from a profile at a center of the longitudinal direction, both ends of the longitudinal direction are each provided with a joint portion, the packages are joined to each other at the joint portion, a length in the width direction is longer than a length in the thickness direction at the center of the longitudinal direction, a half of a length in the width direction is shorter than a length in the thickness direction, a direction along an outermost outer end of the joint portion in the length direction intersects the longitudinal direction, and the absorbent article package has a length along an outer end of the cross section orthogonal to the length direction at a predetermined position between the joint portions, the length direction is shorter than the outer end in the length direction.

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

ADVANTAGEOUS EFFECTS OF INVENTION

According to the present invention, it is easy to hold the absorbent article package and to keep the absorbent article package sanitary.

Drawings

Fig. 1 is a plan view of the skin side of the package 1 in an expanded state.

Fig. 2 is a plan view of the non-skin side of the package 1 in the unfolded state.

Fig. 3 is a plan view of the package 1 in a packaged state.

Fig. 4 is a view illustrating the opening of the package 1.

Fig. 5 is a view illustrating folded portions F1 to F7 of package 1.

Fig. 6A to 6D are views for explaining the development of the package 1.

Fig. 7A to 7C are views for explaining the development of the package 1.

Fig. 8 is a sectional view taken from A-A in fig. 3.

Fig. 9 is a diagram illustrating a state in which the package 1 is held.

Fig. 10 is an enlarged view illustrating one side in the longitudinal direction of package 1 in fig. 3.

Fig. 11 is a view illustrating a package 100 in a packaged state according to another embodiment.

Detailed Description

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

An absorbent article package comprising: an absorbent article; and a package for packaging the absorbent article, wherein the absorbent article is folded or rolled up a plurality of times while being placed on an inner surface of the package, the absorbent article has a longitudinal direction orthogonal to the longitudinal direction, a width direction and a thickness direction, the width direction is a direction along an imaginary line passing through two points farthest from a profile at a center of the longitudinal direction, both ends of the longitudinal direction are each provided with a joint portion, the packages are joined to each other at the joint portion, a length in the width direction is longer than a length in the thickness direction at the center of the longitudinal direction, a half of a length in the width direction is shorter than a length in the thickness direction, a direction along an outermost outer end of the joint portion in the length direction intersects the longitudinal direction, and the absorbent article package has a length along an outer end of the cross section orthogonal to the length direction at a predetermined position between the joint portions, the length direction is shorter than the outer end in the length direction.

According to such an absorbent article package, it is easy to hold the absorbent article package and to keep the absorbent article package sanitary.

In the absorbent article package, it is desirable that a smaller angle of the angle formed between the direction along the joint portion and the width direction is 45 ° or less.

According to such an absorbent article package, the length of the outer end of the joint portion can be made longer than in the case where the smaller angle of the angle formed between the direction along the joint portion and the width direction is larger than 45 °, so that the packaged state of the absorbent article package is easily maintained, and the risk of the absorbent article package falling from the hand of a user holding the absorbent article package is easily reduced.

In the absorbent article package, it is desirable that the joint portion is located on one side of a center in the thickness direction of the absorbent article package.

According to such an absorbent article package, since the other side in the thickness direction of the package is likely to be in a state in which tension is applied stronger than the one side in the thickness direction of the package, the absorbent article is likely to be held by making the feel of holding different between the one side and the other side in the thickness direction when holding the absorbent article package, and the risk of dropping the absorbent article package from the held state is likely to be reduced.

In the absorbent article package, it is desirable that the joint portion has a one-side joint portion provided at one end portion in the longitudinal direction and an other-side joint portion provided at the other end portion in the longitudinal direction, and the one-side joint portion and the other-side joint portion are provided at different positions in the thickness direction.

According to such an absorbent article package, since the tension applied to the package on one side and the other side in the thickness direction is easily made different on one side and the other side in the length direction, the absorbent article package is easily kept sanitary.

In the absorbent article package, it is desirable that the absorbent article package has a smaller width portion having a shorter width than the width at the center of the longitudinal direction between the center of the longitudinal direction and the joint.

According to such an absorbent article package, in a state of holding the absorbent article package, fingers are easily accommodated in the small width portion, and the absorbent article package is easily held.

In this absorbent article package, it is desirable that the absorbent article includes an absorber that absorbs liquid, an end of the absorber is provided between a center in the longitudinal direction and the joint in the longitudinal direction, and the smaller width portion is located between the joint and the end of the absorber.

According to such an absorbent article package, the rigidity of the portion having the smaller width is lower than the rigidity of the portion provided with the absorbent body, so that the diameter of the finger at the time of holding can be made smaller in the portion having the smaller width, and the finger can be held with ease.

In the absorbent article package, it is desirable that the absorbent article includes an absorbent body that absorbs liquid, the joint includes a one-side joint provided at one end in the longitudinal direction and another-side joint provided at the other end in the longitudinal direction, one-side end of the absorbent body is provided between the center in the longitudinal direction and the one-side joint, the other-side end of the absorbent body is provided between the center in the longitudinal direction and the other-side joint, and the number of wrinkles per unit area between the joint in the longitudinal direction and the end of the absorbent body is greater than the number of wrinkles per unit area in a region from the one-side end of the absorbent body to the other-side end of the absorbent body in the longitudinal direction.

According to such an absorbent article package, the absorbent article package can be easily grasped by making the number of wrinkles smaller in the portion where the absorbent body is provided, and the risk of slipping off the absorbent article package in the grasped state from the palm can be reduced by making the number of wrinkles larger between the joint portion in the longitudinal direction and the end of the absorbent body.

With this absorbent article package, it is desirable that the absorbent article be provided with an absorbent body that absorbs liquid, the absorbent body having pulp fibers and having no latent crimped fibers.

According to such an absorbent article package, since the pulp fibers have a lower volume recovery than the potentially crimped fibers, the absorbent article package is easily maintained in a compact state.

With this absorbent article package, it is desirable that the package has a one-side package portion, a one-side adjacent package portion, a another-side package portion, and a another-side adjacent package portion, the one-side package portion being located at a most-on-one side position in the thickness direction, the one-side adjacent package portion being located adjacent to the one-side package portion from another side of the one-side package portion in the thickness direction, the another-side package portion being located at a most-on-another side position in the thickness direction, the another-side adjacent package portion being located adjacent to the another-side package portion from one side of the another-side package portion in the thickness direction, at least part of the one-side package portion being joined to at least part of the one-side adjacent package portion at the joining portion, and at least part of the another-side package portion being joined to at least part of the another-side adjacent package portion, the joining peel off force of the one-side package portion to the one-side adjacent package portion being greater than the joining peel off of the another-side package portion to the another-side adjacent package portion.

According to such an absorbent article package, the magnitude of the force to peel the joint portion can be adjusted when the absorbent article package is unfolded.

With this absorbent article package, it is desirable that the joint portion has a plurality of crimping portions, and a difference between a length of the outer end of the joint portion and a length of the absorbent article package in a direction along the outer end at a center in the longitudinal direction is longer than a length of the crimping portion in the direction along the outer end.

With this absorbent article package, it is desirable that the joint portion has a plurality of crimping portions, at least one of which is located outside the outline at the predetermined position when viewed from the end portion side to the inside in the longitudinal direction.

According to such an absorbent article package, friction on the surface of the absorbent article package is easily increased by the pressure-bonded portion having the concave-convex shape on the surface of the package, so that the absorbent article package is easy to hold, and the risk of slipping of the absorbent article package in a held state is easily reduced by the pressure-bonded portion having the increased rigidity.

In the absorbent article package, it is desirable that at least a part of the edge of the package is first unfolded when the absorbent article package is unfolded, and at least a part of the edge of the package is provided at a position different from the apex when the point farthest from the joint in the thickness direction in the outline of the absorbent article package is taken as the apex when viewed from the end side to the inside in the longitudinal direction.

According to such an absorbent article package, the absorbent article package is formed so as to be easy to hold and easy to keep sanitary, and the user of the absorbent article package easily grasps a portion of the package that is relaxed from a portion to which tension is applied more strongly, so that the absorbent article package is easy to unfold.

In the absorbent article package, it is desirable that the package has an adhesive portion in which portions of the package adjacent in the thickness direction are adhered and a non-adhesive portion in which portions of the package adjacent in the thickness direction are not adhered, the non-adhesive portion being provided in a region including an edge of the package, and the adhesive portion being provided adjacent to the non-adhesive portion in a crossing direction crossing a direction along the edge of the package.

According to such an absorbent article package, the package state of the absorbent article package can be easily maintained by providing the adhesive portion, or the risk of mixing foreign matter such as dust inside the absorbent article package can be reduced, and the edge of the package can be easily pinched when the package is unfolded by providing the non-adhesive portion located closer to the edge of the package than the adhesive portion.

= = embodiment= = = =

Hereinafter, as an absorbent article of the absorbent article package of the present invention, a sanitary napkin will be described as an example. However, the absorbent article is not limited to a sanitary napkin, and may be, for example, a sanitary pad, an absorbent pad (light incontinence pad), or the like.

Basic structure of package (absorbent article package) 1

Fig. 1 and 2 are plan views of package 1 in an expanded state. Fig. 1 is a view of the sanitary napkin 10 from the skin side, and fig. 2 is a view of the sanitary napkin 10 from the non-skin side. The package 20 is shown in phantom in fig. 2 to facilitate viewing of the drawing. The center C-C in fig. 1 and 2 shows the center in the transverse direction of the package 1 in the unfolded state.

The absorbent article package 1 includes a sanitary napkin 10 and a package 20 for individually packaging the sanitary napkin 10. In the following description, the absorbent article package 1 is also referred to as "package 1", and the sanitary napkin 10 is also referred to as "sanitary napkin 10".

Basic structure of sanitary towel 10

The sanitary napkin 10 has a transverse direction, a longitudinal direction, and a thickness direction that are orthogonal to each other. In the longitudinal direction of the sanitary napkin 10, the side that contacts the wearer's lower abdomen is referred to as the front side, and the side that contacts the wearer's buttocks is referred to as the rear side. In the thickness direction of the sanitary napkin 10, the side that contacts the skin of the wearer is referred to as the "skin side", and the opposite side is referred to as the "non-skin side".

The sanitary napkin 10 includes an absorbent core (absorber) 11 that absorbs excrement, a liquid-permeable top sheet 12 that is disposed closer to the skin than the absorbent core 11, a liquid-impermeable back sheet 13 that is disposed closer to the non-skin than the absorbent core 11, and a pair of side sheets 14 that extend outward in the lateral direction from the lateral direction side portions of the skin side surfaces of the top sheet 12. The absorbent core 11 may be covered with a liquid-permeable sheet (not shown) such as tissue paper. The lateral ends of the absorbent core 11 are side ends 11ea, 11eb, respectively.

The sanitary napkin 10 further includes a pair of flap portions 10W extending from the central portion in the longitudinal direction to the outer sides in the lateral direction. The flap portion 10W is formed by the backsheet 13 and the side sheet 14.

As shown in fig. 2, the sanitary napkin 10 is provided with offset preventing adhesive portions 15 and 16 on the non-skin side surface. The offset preventing adhesive portions 15 and 16 are formed by applying an adhesive or the like to the backsheet 13. The adhesive portion provided on the main body of the sanitary napkin 10 among the offset preventing adhesive portions 15 and 16 is referred to as a central adhesive portion 15, and the adhesive portion provided on the flap portion 10W among the offset preventing adhesive portions 15 and 16 is referred to as a flap adhesive portion 16.

The central adhesive portion 15 is adhered to the skin side of the clothing (underwear) of the user of the sanitary napkin 10. In the central adhesive portion 15 illustrated in fig. 2, a plurality of rectangular adhesive portions having long sides in the longitudinal direction of the sanitary napkin 10 are arranged at intervals in the lateral direction. The flap adhesive portion 16 is adhered to the non-skin side surface of the user's clothing after the flap portion 10W is folded. In the wing bonding portion 16 illustrated in fig. 2, a rectangular bonding portion is arranged for each wing portion 10W.

The basic structure of the sanitary napkin 10 has been described above, but the structure of the sanitary napkin 10 (absorbent article) described above is an example and is not limited thereto. For example, the sanitary napkin 10 may not have the flap portion 10W. The shape, number, and arrangement of the misalignment preventing adhesive portions 15, 16 are not limited to those illustrated in fig. 2.

Basic structure of package 1

The package 20 includes a package sheet 21 forming the outer side surface of the package body 1, a center release sheet 22 (see fig. 2) covering the center adhesive portion 15 of the sanitary napkin 10, and a flap release sheet 23 covering the flap adhesive portion 16 of the sanitary napkin 10. The package 20 may not have the center release sheet 22 or the flap release sheet 23, and the package 20 may be referred to as only the package sheet 21. For example, the package 20 may be directly fixed to the package sheet 21 without the central release sheet 22, but the central adhesive portion 15 of the sanitary napkin 10. In this case, the inner surface of the wrapping sheet 21 is a release layer (resin film layer) that can be easily peeled off the sanitary napkin 10.

The package sheet 21 is a rectangular sheet having an inner surface to which the sanitary napkin 10 is fixed and an outer surface exposed to the outside in the package body 1. Examples of the packaging sheet 21 include a resin film, a nonwoven fabric, paper, and a sheet obtained by laminating the above materials. In the unfolded state, the sanitary napkin 10 is placed on the inner side surface of the package 21 such that the longitudinal direction of the sanitary napkin 10 is along the longitudinal direction of the package 21 and the lateral direction of the sanitary napkin 10 is along the lateral direction of the package 21, thereby fixing the sanitary napkin 10 to the package 21. In addition, one side in the longitudinal direction of the wrapping sheet 21 corresponds to the front side of the sanitary napkin 10, and the other side in the longitudinal direction of the wrapping sheet 21 corresponds to the rear side of the sanitary napkin 10.

The center release sheet 22 is a rectangular sheet and is fixed to the inner surface of the package sheet 21 by a hot melt adhesive HMA. The flap release sheet 23 is a rectangular sheet and is fixed by the flap adhesive portions 16 of the pair of flap portions 10W. The surfaces of the center release sheet 22 and the flap release sheet 23 facing the misalignment preventing adhesive portions 15 and 16 serve as release layers (resin film layers) from which the sanitary napkin 10 can be easily peeled off.

The center release sheet 22 fixed to the wrapping sheet 21 is detached from the sanitary napkin 10 together with the wrapping sheet 21. The flap release sheet 23, which is not fixed to the wrapping sheet 21, is detached from the sanitary napkin 10 separately from the wrapping sheet 21. However, the present invention is not limited to this, and the flap release sheet 23 may be fixed to the package sheet 21. In the present embodiment, the center release sheet 22 and the flap release sheet 23 are separate sheets, but they may be integrated sheets. In the package 1 of the present embodiment, the central adhesive portion 15 of the sanitary napkin 10 is fixed to the central release sheet 22, whereby the sanitary napkin 10 is fixed to the package sheet 21 via the central release sheet 22.

Packaging body 1 pertaining to packaging state

Fig. 3 is a plan view of the package 1 in a packaged state. The "packaged state" refers to a state in which the sanitary napkin 10 in a folded state or a rolled state is packaged by the package 20. The packaging state of the present embodiment is the following configuration: the sanitary napkin 10 in a folded state, which is packed by the packing member 20, is maintained in a packed state by the packing member 20 being engaged with each other. In a state of being placed on the inner side surface of the wrapping sheet 21 from the unfolded state shown in fig. 1, the sanitary napkin 10 is folded in a state of being fixed with the skin side surface facing upward via the center release sheet 22, and the package 1 in the wrapped state shown in fig. 3 is obtained.

As shown in fig. 3 and the like, the packaged body 1 has a longitudinal direction, a width direction orthogonal to the longitudinal direction, and a thickness direction orthogonal to the longitudinal direction and the width direction, and has the longest length in the longitudinal direction. The "width direction" of the package 1 is a direction along a virtual line V passing through two points P farthest apart on the outline of a cross section (see fig. 8) at the center C-C in the longitudinal direction. In the present embodiment, the longitudinal direction of the package 1 in the package state corresponds to the lateral direction of the package 1 in the unfolded state, and the width direction of the package 1 in the package state corresponds to the longitudinal direction of the package 1 in the unfolded state. In the packaged package 1, the length of the outer end of the joint 2 in the longitudinal direction is along the width direction of the packaged package 1. The center C-C in fig. 3 shows the center in the longitudinal direction and also in the lateral direction in fig. 1 and 2. The center X-X in fig. 3 shows the widthwise center of the package 1 in the packaged state.

Fig. 3 shows the package 1 in the unfolded state, and the package 1 is formed by folding seven times. Fig. 4 is a view illustrating the opening of the package 1. The package sheet 21 of the package 1 has one side end (edge of the package) 21a of which at least part of the end of the package sheet 21 is first unfolded and the other side end 21b of which at least part of the end of the package sheet 21 is last unfolded when the package 1 is unfolded. The one end 21a of the present embodiment is also an opening end serving as a starting point for unsealing. In the present embodiment, one side end 21a and the other side end 21b of the package sheet 21 are continuous from one side end to the other side end in the longitudinal direction of the package body 1, respectively, and are provided along the longitudinal direction of the package body 1, and the one side end 21a is substantially parallel to the longitudinal direction. The package 1 of the present embodiment is not provided with a band member for a user (wearer) to hold at the time of opening, but the package 1 (package 20) may be provided with a band member. In the case where the package 20 has a band member, the opening end 21a becomes an edge of the band member.

The package 1 of the present embodiment is a compact shape in which at least one of the sanitary napkin 10 and the package 20 is folded back four times or more in the longitudinal direction, and is folded back seven times in the present embodiment. As shown in fig. 5, the package 1 has a plurality of folded portions F1 to F7 along the lateral direction of the sanitary napkin 10. Fig. 5 is a view illustrating folded portions F1 to F7 of package 1. As shown in fig. 3, the adhesive part 3 and the pair of joining parts 2 are provided. The package 1 is sealed by the adhesive portion 3 and the pair of joint portions 2, so that the sanitary state of the sanitary napkin 10 in the package sheet 21 is maintained.

Each of the folded portions F1 to F7 is a region having a predetermined width (a predetermined length in the longitudinal direction in the unfolded state), and the center of the region having the predetermined width in the longitudinal direction is indicated as each of the folded portions F1 to F7 in fig. 5. The detailed structure of the sanitary napkin 10 and the wrapper sheet 21 is omitted from fig. 5. A flap release sheet 23 is fixed to the flap adhesive portion 16, and the pair of flap portions 10W are folded back inward in the lateral direction, and in this state, the wrapping sheet 21 and the sanitary napkin 10 are folded a predetermined number of times. The lateral ends 10ea and 10eb of the sanitary napkin 10 in a state in which the flap portion 10W is folded back inward in the lateral direction shown in fig. 5 are one-side ends 10ea and the other-side ends 10eb in the longitudinal direction of the sanitary napkin 1 of the package body 1 in the packaged state shown in fig. 3. The lateral ends 11ea and 11eb of the absorbent core 11 of the sanitary napkin 10 in the developed state shown in fig. 1 are the longitudinal one-side ends 11ea and the other-side ends 11eb of the sanitary napkin 1 of the package 1 in the packaged state shown in fig. 3.

The adhesive portion 3 is a portion where adjacent portions of the package sheet 21 in the thickness direction are adhered to each other by an adhesive 3h (see fig. 8, etc.) such as a hot melt adhesive, and is provided at an end portion of the package sheet 21 on the side of the one end 21 a.

The joint 2 is a joint in which the package sheets 21 are sealed to each other by pressure bonding (e.g., heat welding, ultrasonic welding, etc.), an adhesive, or the like. In fig. 3, etc., the portion of the joint 2 is shown by cross-hatching. The joint 2 is a substantially rectangular region provided at both ends in the longitudinal direction and extending in the width direction. The joint 2 of the present embodiment is provided with a plurality of welded portions m (pressure-bonding portions) having a rectangular shape (see fig. 10). The joint 2 of the present embodiment is formed of an aggregate of welded portions m in which a plurality of welded portions m are arranged in an arbitrary pattern. The welded portion m of the joint 2 may be, for example, a plurality of welded portions having circular shapes arranged in a staggered manner. The joint 2 located on one side in the longitudinal direction is referred to as a one-side joint 2a, and the joint 2 located on the other side in the longitudinal direction is referred to as an other-side joint 2b. The one-side joint portion 2a and the other-side joint portion 2b of the package 1 according to the present embodiment are provided at the central portions in the thickness direction, and the one-side joint portion 2a and the other-side joint portion 2b are provided at substantially the same positions in the thickness direction. The outermost outer end 2e of the joint 2 in the longitudinal direction intersects the longitudinal direction along the direction of the outer end 2 e. In the package 1 of the present embodiment, the outer end 2e of the joint 2 is along the width direction, and the direction along the outermost outer end of the joint 2 in the length direction is along the width direction. The outer end 2e of the joint 2 is perpendicular to the longitudinal direction and the thickness direction along the outer end.

In the package 1 having a plurality of folded portions F, not all of the folded portions F are necessarily formed as creases in the sanitary napkin 1 or the package sheet 21. For example, the following states are established: the crease of the 1 st fold F1 formed by the first fold from the unfolded state is left deeper than the 7 th fold F7 formed by the last fold. In the packaged body 1, the arc radius R of the outer contour is larger than the arc radius R of the inner contour when viewed in the longitudinal direction, and therefore, the trace as the folded portion F is less likely to remain. That is, in the package 1 in the packaged state including the plurality of folds F, the deeper the folds F are formed, the shallower the folds are formed in the folds F formed in the outer side in the thickness direction.

Preferably, the length of the package 1 in the longitudinal direction is 100mm to 150mm. The length of the package 1 of the present embodiment in the longitudinal direction is 135mm. By setting the length of the package 1 in the longitudinal direction within this range, the package 1 can be easily held by the fingers as a whole. For example, when the package 1 is gripped as shown in fig. 9, if the length in the longitudinal direction is less than 100mm, it is difficult to touch the package 1 with all five fingers, and the package is likely to become unstable. On the other hand, if the length of the package 1 in the longitudinal direction exceeds 150mm, the area where the wearer's finger cannot touch the package 1 becomes excessively large, and the portion exposed from the wearer's hand becomes large, so that the exposed portion collides with the outside, and there is a risk that the package 1 is broken.

Expansion of package 1 in packaged state

Fig. 6A to 6D and fig. 7A to 7C are schematic views for explaining the development of the package 1, and detailed structures of the sanitary napkin 10 and the package 20 are omitted. Fig. 8 is a cross-sectional view taken from A-A in fig. 3, showing a cross-section at the center C-C in the longitudinal direction of the package 1. In fig. 8, the joint 2 (one-side joint 2a, the other-side joint 2 b) in the thickness direction is indicated by a broken line, and a position corresponding to the center in the thickness direction of the joint 2 is indicated by Y-Y. An example of a method of unfolding the packaged body 1 is described below, but the method is not limited thereto. In addition, the case where the package 1 is opened and unfolded by the wearer of the sanitary napkin 10 has been described, but the opening and unfolding of the package 1 is not limited to the wearer of the sanitary napkin 10, and may be a person who wears an absorbent article such as the sanitary napkin 10, or the like.

In order to open the package 1 in the packaged state (fig. 3 and 6A), as shown in fig. 4, for example, the wearer of the sanitary napkin 10 can start opening the package 1 by holding the end portion of the package 1 on the one side end 21a side of the package sheet 21 with the right hand while supporting the package 1 with the left hand.

Further, as shown in fig. 3 and the like, it is preferable that the package sheet 21 of the package 1 is provided with marks MC, ML indicating the positions of the one end 21a as the opening end. The mark MC is a mark showing the opening position of the package sheet 21 by coloring the end portion of the package 21 on the side including the one end 21a into a color different from the color other than the end portion. The label MC is continuously provided between both ends in the longitudinal direction of the package 21. The mark ML is a mark indicating a position suitable for opening the package 21 first. Specifically, the mark ML is a mark showing the letter "open" and a pattern "/of a downward triangle indicating the one side end 21 a. By providing such marks MC, ML, the wearer can easily recognize the position of the edge (one side end 21 a) of the wrapping sheet 21 for the first expansion when expanding the package 1, and thus the expansion of the package 1 can be easily facilitated. The marks MC and ML may be printed on the inner surface or the outer surface of the package sheet 21 with ink or the like, or may be formed by attaching the marks MC and ML to the package sheet 21 as separate members.

When the end portion of the wrapping sheet 21 on the side of the one end 21a is pinched from the wrapping state shown in fig. 6A and the wrapping sheet 21 is unfolded with the 7 th folded portion F7 as a starting point (when unfolded from the lower side toward the upper side in fig. 6A), the state shown in fig. 6B is obtained. At this time, as the portion of the package sheet 21 from the one-side end 21a to the 7 th folded portion F7, that is, the one-side package portion 21sa provided at the outermost side of the package body 1 is pulled away from the one-side adjacent package portion 21ta, the joint of the one-side package portion 21sa and the one-side adjacent package portion 21ta at the joint 2 is peeled off, and the one-side adjacent package portion 21ta is adjacent to the one-side package portion 21sa from the other side in the thickness direction. Further, since the joint 2 of the present embodiment is formed by welding, the following state is achieved: only the joining of the one-side package portion 21sa and the one-side adjacent package portion 21ta is peeled off, while the joining of the remaining portions of the package sheet 21 at the joining portion 2 to each other is maintained.

Next, when the sanitary napkin 10 and the wrapping sheet 21 are unfolded from the state shown in fig. 6B starting from the 6 th folded portion F6, the state shown in fig. 6C is obtained. The state shown in fig. 6C represents the following state: in a state where one side end 21a of the already-unfolded packaging sheet 21 is fixed, the sanitary napkin 10 and the packaging sheet 21 are unfolded starting from the 6 th folded portion F6 (a state of being unfolded from the upper side toward the lower side in fig. 6B). Then, with the deployment, at the joint 2, the portions of the wrapping sheet 21 adjacent in the thickness direction are peeled off from each other in sequence.

Similarly, when the sanitary napkin 10 and the wrapping sheet 21 are unfolded from the state shown in fig. 6C starting from the 5 th folded portion F5, the state shown in fig. 6D is obtained. When the sanitary napkin 10 and the wrapping sheet 21 are unfolded from the state shown in fig. 6D starting from the 4 th folded portion F4, the state shown in fig. 7A is obtained. When the sanitary napkin 1 and the wrapping sheet 21 are unfolded from the state shown in fig. 7A starting from the 3 rd folded portion F3, the state shown in fig. 7B is obtained. When the sanitary napkin 1 and the wrapping sheet 21 are unfolded from the state shown in fig. 7B starting from the 2 nd folded portion F2, the state shown in fig. 7C is obtained. When the sanitary napkin 1 and the wrapping sheet 21 are unfolded from the state shown in fig. 7C starting from the 1 st folded portion F1, the state shown in fig. 5 is obtained.

Further, in the package 1 of the present embodiment, since the portion stacked in the thickness direction with the 1 st folded portion F1 as a starting point is folded back further, the 2 nd folded portions F2a, F2b, the 3 rd folded portions F3a, F3b, and the 4 th folded portions F4a, F4b are formed. Specifically, in the package 1, the 2 nd fold F2 is formed so that the outer side surfaces of the package sheet 21 folded back at the 1 st fold F1 face each other, and therefore, in the package 1 (see fig. 5) in the unfolded state, the 2 nd fold F2a, the 3 rd fold F3a, and the 4 th fold F4a are formed at positions on one side in the longitudinal direction than the 1 st fold F1, and the 2 nd fold F2b, the 3 rd fold F3b, and the 4 th fold F4b are also formed at positions on the other side in the longitudinal direction than the 1 st fold F1. The package 1 having such a folded portion F is folded compactly and has a small number of folds, so that when the wearer opens the package 1, the number of folds is small, and the package 1 is easy to open.

In the present embodiment, the package 1 is formed by folding back the portion stacked in the thickness direction with the 1 st folded portion F1 as the starting point, but the present invention is not limited thereto. For example, the following structure is also possible: the folded width of the portion folded with the 1 st folded portion F1 as the starting point is made smaller, and the folded portion is not folded back any more. The folded portion F may not be formed. For example, the sanitary napkin 1 and the wrapping sheet 21 may be wound in a roll shape along the longitudinal direction of the sanitary napkin 1 (wrapping sheet 21).

Ease of holding the package 1

In general, when five fingers are bent inward to be held, the ring shape of the inner side formed by the fingers is not a perfect circle, but a curved shape approximating an elliptical shape. Therefore, it is easier to hold a cylindrical package having a curved cross section close to an elliptical shape than to hold a cylindrical package having a perfect circular cross section. In a state where the package of the absorbent article is held in a cylindrical shape with a perfect circle in cross section, there is a risk that the portion where the fingers and palm contact the outer surface of the package of the absorbent article is small, and the package of the absorbent article slides off the hand. Further, since a cylindrical package body having a perfect circular cross section is likely to roll on a plane, there is a risk that: in a toilet or the like, the absorbent article package rolls down and adheres to the floor of the toilet or the like, and the absorbent article package becomes unhygienic.

In contrast, as shown in fig. 8, in the package 1, the length W in the width direction is longer (T < W) than the length T in the thickness direction at the center C-C in the longitudinal direction of the package 1, and half (1/2W) of the length W in the width direction is shorter (1/2W < T) than the length T in the thickness direction. Further, the length of the package 1 in the direction along the outer end of the cross section orthogonal to the longitudinal direction at the predetermined position between the joint portions 2 is shorter than the length L2 of the outer end 2e in the direction along the outer end. The "predetermined position of the joint portions 2 with respect to each other" refers to an arbitrary position between the one-side joint portion 2a and the other-side joint portion 2b in the longitudinal direction. That is, the joint portions 2 at both ends in the longitudinal direction have portions that are shorter than the length L2 of the outer end 2e in the direction along the outer end therebetween, and may have portions that are longer than the length L2 of the outer end 2e between the joint portions 2 as long as the joint portions 2 have portions that are shorter than the length L2 of the outer end 2e somewhere between the joint portions 2. In short, the package 1 may have a portion having a length shorter than the length of the outer end 2e in the direction along the outer end at a part in the longitudinal direction. Thereby, the package 1 can be easily held, and the risk of inadvertently dropping the package 1 can be reduced, and the package 1 can be easily kept hygienic.

Specifically, in the present embodiment, the description will be given assuming that the "direction along the outer end 2 e" is the direction along the width direction and the "predetermined position" is the center c—c in the longitudinal direction. As shown in fig. 3 and 8, in the center C-C in the longitudinal direction of the package body 1, the length W in the width direction is longer than the length T in the thickness direction (T < W), and half (1/2W) of the length W in the width direction is shorter than the length T in the thickness direction (1/2W < T), and by making half (1/2W) of the length W in the width direction shorter than the length T in the thickness direction (1/2W < T), the package body is more easily held by the wearer than in the case where the length T in the thickness direction at the center C-C in the longitudinal direction of the package body 1 is equal to or longer than the length W in the width direction.

In general, when five fingers are bent inward to be held, the ring shape of the inner side formed by the fingers is not a perfect circle, but a curved shape approximating an elliptical shape. Fig. 9 is a diagram illustrating a state in which the package 1 is held. In the cross section at the center C-C in the longitudinal direction of the package 1, the length W in the width direction is longer than the length T in the thickness direction, and therefore, when the package 1 is gripped, the portion in the width direction longer than the length in the thickness direction in the package 1 is easily made to follow the palm, and the portion in the thickness direction shorter than the length in the width direction is easily made to follow the curved annular shape formed by the fingers, so that it is easy to be accommodated inside the annular shape formed by the fingers, as compared with the case of gripping a cylindrical package having a perfect circular cross section. In addition, when holding the package 1, the number of portions where the fingers and palm contact the outer surface of the package 1 is easily increased, and the risk of the held package 1 slipping off the hand is easily reduced. Further, as compared with the case where the cross-sectional shape at the center C-C in the longitudinal direction is a perfect circle, the risk of the package 1 rolling when placed on a flat surface can be reduced, and therefore the risk of the package 1 falling to the floor of a toilet or the like is reduced, and the sanitary napkin 10 housed inside and the absorbent core 11 can be kept sanitary easily.

Further, by the package 1 having the length L1 in the direction along the outer end shorter than the length L2 in the direction along the outer end of the outer end 2e in the cross section orthogonal to the longitudinal direction at the center C-C of the joined portions 2 of the package 1 in the longitudinal direction, for example, the risk of the package 1 falling off from the hand of a wearer in a state of holding the package 1 as shown in fig. 9 is easily reduced. An arch (loop) formed by the fingers of the wearer in a state of holding the package 1 is formed to have a size corresponding to the length L1 in the direction along the outer end of the cross section of the center C-C in the longitudinal direction. Therefore, even in the case where the package 1 is to be slid from the state where the package 1 is held, the outer end 2e of the package 1 having a length longer than the length L1 in the direction of the outer end of the cross section of the center C-C in the longitudinal direction is easily caught by the arch (loop) formed by the finger, or the hand holding the package 1 is easily fitted into a predetermined position in the package 1 where the length in the direction of the outer end is shorter than the outer end 2e, whereby the risk that the package 1 falls off to leave the hand completely is easily reduced.

Preferably, the length T of the package 1 in the thickness direction is 10mm to 50mm. According to academic papers on the relationship between the evaluation of the susceptibility to grip when holding a cylindrical object with the hand and the arch of the palm (Japanese society of mechanical Engineers, volume C, 66, no. 641 (2000-1), eight Gao Longxiong, shanjian Guizhi, horiki, et al), the contact ball radius R of an object easy to grip by 20 testers aged 20 to 24 years was examined for the arch formed between the thumb and the index finger among the arches formed by the hand, and as a result, the object was easily accommodated in the palm when the contact ball radius R was 15mm to 40 mm. That is, when the length T in the thickness direction of the package 1 is shorter than 10mm, the package 1 is easily detached from the palm. On the other hand, in the case where the length in the thickness direction of the package 1 is greater than 50mm, it is difficult to grasp the package 1 because the length is greater than the diameter of the loop formed by the thumb and the index finger of the japanese female's hand. Therefore, by setting the length of the package 1 in the thickness direction to 10mm to 50mm, the risk of slipping is reduced by not excessively small or excessively large for the hands of japanese females, and the package 1 can be easily stored in the palm of the hand, and thus can be easily held by pinching.

The measurement of the length in the thickness direction and the length in the width direction of the package 1 can be performed by a known method. For example, the target portion (each length at the center C-C in the longitudinal direction) is set to 3.0gf/cm by using a pointer thickness gauge ID-C1012C manufactured by Sanfeng (Co., ltd.) or an instrument equivalent thereto ² The value measured by pressurizing is set as the length in the thickness direction and the length in the width direction.

It is preferable that the smaller angle of the angles formed between the direction along the joint 2 and the width direction is 45 ° or less. "the direction along the joint 2" means the direction along the outer end. In the present embodiment, since the direction along the outer end is also the width direction, the smaller angle of the angle formed between the direction along the joint 2 and the width direction is about 0 °. By setting such an angle, the length of the outer end 2e of the joint 2 can be made longer, and the joint region of the joint 2 can be made larger as the length of the outer end 2e of the joint 2 is longer, so that the package 1 is formed to be easy to grasp and to reduce the risk of dropping from the grasped state, and the packaged state of the package 1 is easy to maintain, as compared with the case where the smaller angle of the angle between the direction along the joint 2 (direction along the outer end) and the width direction is larger than 45 °.

The length W in the width direction at the center C-C in the longitudinal direction of the package 1 is L1. Preferably, the package 1 has a smaller width portion 1n having a smaller width than the width length L1 at the longitudinal center C-C between the longitudinal center C-C and the joint 2. As shown in fig. 3 and the like, the length L3 in the width direction at the smaller width portion 1n is shorter than the length L1 in the width direction at the center C-C in the length direction (L3 < L1). In addition, in the present embodiment, since the width direction is along the direction along the outer end, the length L3 in the direction along the outer end at the width-smaller portion 1n is shorter than the length L1 in the direction along the outer end at the center C-C in the length direction (L3 < L1). In a state where the wearer grips the package 1, the fingers of the wearer are easily accommodated in the smaller width portions 1n. In particular, since the smaller width portions 1n of the package 1 are sandwiched between the portions longer than the smaller width portions 1n in the length direction along the outer ends, the recessed portions of the smaller width portions 1n are likely to be fitted (embedded) with fingers. Thus, the wearer can easily grasp the package 1, and the risk of the package 1 in a held state slipping off from the hand can be easily reduced.

Further, it is more preferable that the width-smaller portion 1n is located between the joint portion 2 and the end 11e of the absorbent core 11 in the longitudinal direction, as shown in fig. 3. Specifically, in the package 1 of the present embodiment, one side end 10ea of the sanitary napkin 10 and one side end 11ea of the absorbent core 11 are provided between the center C-C in the longitudinal direction and the one side joint 2a, and the other side end 10eb of the sanitary napkin 10 and the other side end 11eb of the absorbent core 11 are provided between the center C-C in the longitudinal direction and the other side joint 2 b. One side in the longitudinal direction has a smaller one-side width portion 1n between the one-side joint portion 2a and the one-side end 11ea, and the other side in the longitudinal direction has a smaller other-side width portion 1n between the other-side joint portion 2b and the other-side end 11eb. Such a smaller width portion 1n between the joint portion 2 and the end 11e of the absorbent core 11 has lower rigidity than the portion where the absorbent core 11 is provided. Therefore, the diameter of the arch (loop) formed by the finger in the case of holding the portion of the smaller width portion 1n can be made smaller than the diameter of the arch (loop) formed by the finger in the case of holding the portion provided with the absorber 1. Thus, the finger can be easily fitted (buried) into the smaller width portion 1n, and the smaller width portion 1n can be easily grasped more strongly, so that the package 1 can be easily grasped, and the package 1 can be hardly dropped.

As shown in fig. 3, one side end 10ea of the sanitary napkin 10 and one side end 11ea of the absorbent core 11 are provided between the center C-C in the longitudinal direction and the one side joint 2a, and the other side end 10eb of the sanitary napkin 10 and the other side end 11eb of the absorbent core 11 are provided between the center C-C in the longitudinal direction and the other side joint 2 b. In the packaged state of the package 1, it is preferable that the number of wrinkles per unit area between the one-side joint 2a and the one-side end 11ea of the absorbent core 11 in the longitudinal direction is greater than the number of wrinkles per unit area in the region from the one-side end 11ea to the other-side end 11eb of the absorbent core 11 in the longitudinal direction. Similarly, in the packaged state of the package 1, it is preferable that the number of wrinkles per unit area between the other side joint portion 2b and the other side end 11eb of the absorbent core 11 in the longitudinal direction is larger than the number of wrinkles per unit area in the region from the one side end 11ea to the other side end 11eb of the absorbent core 11 in the longitudinal direction. The number of wrinkles in each region can be performed by visual inspection.

The portion where the absorbent core 11 is provided (the region from the one side end 11ea to the other side end 11eb of the absorbent core 11 in the longitudinal direction) is a portion having a high rigidity in thickness in the package 1, and therefore is a portion where a stronger tensile force is applied to the package sheet 21 than between the one side joint portion 2a in the longitudinal direction and the one side end 11ea of the absorbent core 11, and between the other side joint portion 2b in the longitudinal direction and the other side end 11eb of the absorbent core 11. Therefore, the number of wrinkles in the wrapping sheet 21 at the portion where the absorbent core 11 is provided is small, and the feel of the wearer in the region from the one side end 11ea to the other side end 11eb of the absorbent core 11 in the longitudinal direction is improved, and the wearer can easily hold the sheet by hand. On the other hand, by making the wrinkles between the one-side joint portion 2a in the longitudinal direction and the one-side end 11ea of the absorbent core 11 and between the other-side joint portion 2b in the longitudinal direction and the other-side end 11eb of the absorbent core 11 larger than the wrinkles in the longitudinal direction in the region from the one-side end 11ea to the other-side end 11eb of the absorbent core 11, friction is likely to occur as compared with the portion where the absorbent core 11 is provided, and the risk of the package 1 in a state held by the wearer slipping off the palm can be reduced.

In the absorbent core (absorbent body) 11 of the package 1 that absorbs excrement (liquid), pulp fibers are preferably present as the liquid-absorbent fibers, and latent crimped fibers are preferably not present. The pulp fiber includes not only wood pulp fibers obtained from conifers or broadleaves, but also non-wood pulp fibers obtained from cotton linters, abaca, kenaf, straw, bamboo, banana. Crimped fibers are fibers having a crimped shape (zigzag, omega, spiral, etc.), and in the case of known latent type spirally-crimped fibers (also referred to as "latent crimped fibers") and apparent type spirally-crimped fibers, the latent crimped fibers are fibers that are crimped by heating to take on a spiral shape. Since pulp fibers have a lower volume recovery than potential crimped fibers, the absorbent core 11 is less likely to expand and the package 1 is easily maintained in a compact shape even when folded multiple times or rolled into a roll shape to form a compact shape like the package 1.

The KES-based compression recovery rate RC of the package 1 in the width direction and the thickness direction is preferably 20% or more and 40% or less, respectively. The compression recovery rate RC of the package 1 of the present embodiment is about 30%. Further, the linearity LC of the compression characteristic curve by the KES method in the width direction and the thickness direction of the package 1 is preferably 0.05 to 0.3, respectively. In this embodiment about 0.15. By setting the compression recovery rate RC in the width direction and the linearity LC of the compression characteristic curve and the compression recovery rate LC in the thickness direction and the linearity LC of the compression characteristic curve to close values, respectively, the hardness (elastic force) in the width direction and the hardness (elastic force) in the thickness direction when the wearer grips the package 1 can be made close, and thus the grasping ease is easy for the wearer to improve.

Further, as shown in fig. 10, it is preferable that the joint 2 has a plurality of welded portions (pressure-bonded portions) m, and a difference (L2-L1) between a length L2 of an outer end 2e of the joint 2 and a length L1 in a direction along the outer end at a center C-C in the longitudinal direction is longer than a length Lm in the direction along the outer end of the welded portion m (L2-L1 > Lm). Fig. 10 is an enlarged view illustrating one side in the longitudinal direction of package 1 in fig. 3. As described above, the plurality of welded portions m are arranged in the longitudinal direction, the width direction, and the direction along the outer end. In the present embodiment, since the direction along the outer end is along the width direction, the length Lm of the welded portion m in the direction along the outer end is also the length in the width direction. By making the difference (L2-L1) between the length L2 of the outer end 2e and the length L1 in the direction of the outer end at the center C-C in the longitudinal direction longer than the length Lm in the direction of the outer end of the welded portion m (L2-L1 > Lm), the risk of the package 1 slipping down from the wearer's fingers and falling down is easily reduced compared to the case where the difference (L2-L1) between the length L2 of the outer end 2e and the length L1 in the direction of the outer end at the center C-C in the longitudinal direction is shorter than the length Lm in the direction of the outer end of the welded portion m, and the wearer is easily able to hold the center in the longitudinal direction while holding the package 1 as shown in fig. 9, and at the same time, the outer end 2e of the welded portion 2 is easily made longer than the arch formed by the wearer's fingers, so that the risk of the package 1 slipping down from the wearer's fingers is easily kept hygienic.

Further, it is preferable that at least one of the welded portions m is located outside the outline at a predetermined position (for example, the center C-C in the longitudinal direction) when the package 1 is viewed from the end side to the inside in the longitudinal direction. Thus, even when the package 1 is to be slipped off from the hand in a state where the wearer holds the package 1 as shown in fig. 9, since the rigidity of the package sheet 21 is improved by the weld m of the joint 2 and the surface of the package sheet 21 is formed with irregularities, the friction of the surface of the package sheet 21 is easily made large, and therefore the risk of complete slipping off of the package 1 is easily avoided at the joint 2.

As shown in fig. 8, the package 1 in the packaged state has a one-side package portion 21sa located at the most one side in the package sheet 21 in the thickness direction and a one-side adjacent package portion 21ta adjacent to the one-side package portion 21sa from the other side in the thickness direction of the one-side package portion 21 sa. Similarly, the package 1 has the other side package portion 21sb located at the most other side of the package sheet 21 in the thickness direction and the other side adjacent package portion 21tb adjacent to the other side package portion 21sb from one side of the other side package portion 21sb in the thickness direction.

In the joint portions 2 at both end portions of the package 1 in the packaged state, at least part of the one-side package portion 21sa is joined to at least part of the one-side adjacent package portion 21 ta. Similarly, in the joint 2, at least part of the other side wrapping portion 21sb is joined to at least part of the other side adjacent wrapping portion 21 tb. In the present embodiment, the one-side package portion 21sa, the one-side adjacent package portion 21ta, the other-side package portion 21sb, and the other-side adjacent package portion 21tb overlap in the thickness direction, and the one-side package portion 21sa, the one-side adjacent package portion 21ta, the other-side package portion 21sb, and the other-side adjacent package portion 21tb are joined by welding in the thickness direction in a state of overlapping.

Preferably, in the joint 2, the force for peeling the joint between the one-side package portion 21sa and the one-side adjacent package portion 21ta is different from the force for peeling the joint between the other-side package portion 21sb and the other-side adjacent package portion 21 tb. This allows the magnitude of the force to peel off the joint 2 to be adjusted when the package 1 is unfolded.

For example, the force of peeling the one side package portion 21sa from the one side adjacent package portion 21ta at the joint portion 2 may be larger than the force of peeling the other side package portion 21sb from the other side adjacent package portion 21 tb. The peeling of the joint between the one-side package portion 21sa and the one-side adjacent package portion 21ta is the first peeling joint when the package 1 is unfolded, and the state shown in fig. 6A is changed to the state shown in fig. 6B. The peeling of the joint between the other side package portion 21sb and the other side adjacent package portion 21tb is the 2 nd peeling after the peeling of the first joint, and the state shown in fig. 6B is changed to the state shown in fig. 6C. Therefore, by making the force of the first peel engagement larger than the force of the next 2 nd peel engagement, the risk of inadvertent unwinding of the package 1 in the packaged state can be reduced, and the packaged state can be easily maintained. When the joining of the one-side package portion 21sa and the one-side adjacent package portion 21ta is peeled off, the subsequent joining of the one-side package portion 21sa and the one-side adjacent package portion 21ta can be peeled off with a smaller force than the first peeling, and therefore the package 1 can be easily unfolded.

In addition, when the one end 21a, which is the opening end of the package 1, is provided on the one side of the joint 2 in the thickness direction, the force of peeling the joint between the one side package 21sa and the one side adjacent package 21ta at the joint 2 may be smaller than the force of peeling the joint between the other side package 21sb and the other side adjacent package 21 tb. The force for initial deployment can be made smaller than in the case where the force for first stripping the joint between the one-side package portion 21sa and the one-side adjacent package portion 21ta is larger than the force for next stripping the joint between the one-side package portion 21sa and the one-side adjacent package portion 21ta when the package 1 is deployed, and therefore deployment of the package 1 can be started easily.

The "amount of force to peel the bond" refers to the peel strength, and also refers to the bond strength. The peel strength of each joint can be measured by a known method. For example, a portion where the one-side package portion 21sa and the one-side adjacent package portion 21ta at the joint portion 2 of the package 1 are joined (welded) is cut at a predetermined size (width 5 mm) as one-side sample piece. Similarly, the portion where the other side package portion 21sb and the other side adjacent package portion 21tb at the joint portion 2 of the package 1 are joined (welded) is cut at a predetermined size (width 5 mm) as the other side sample piece. In the one sample piece and the other sample piece, the same weld pattern (the area of the weld portion per unit area) was confirmed. Then, a tape was attached to each of the end portions of both surfaces of each of the package portions for each sample piece, and a pair of holding portions was formed. A pair of holding portions are respectively clamped on chucks of a tensile testing machine. Then, the load of the tensile tester was zeroed to start measurement. The distance between chucks was set to 10mm, the stretching speed was set to 100 mm/min, and the maximum load was read. This measurement was performed a plurality of times (n=10), and an average value of the maximum load was calculated. The calculated maximum load is converted into a load per unit width (N/25 mm), and the values are compared as the magnitude of the peeling force (peeling strength). In addition, the measurement can be performed under certain conditions (e.g., 20 ℃ (±2 ℃), 60% humidity (±5%) temperature-stable state of the sample sheet).

Preferably, when the package 1 is viewed from the end portion side to the inside in the longitudinal direction, when a point of the outline of the package 1 farthest from the joint portion 2 in the thickness direction is set as a one-side apex (apex) Za, at least part of the one-side end 21a is provided at a position different from the one-side apex Za. In the package 1 of the present embodiment, the side where the one-side apex Za is located with respect to the joint 2 is the upper side in fig. 8, and the side opposite to the one-side apex Za, that is, the side where the other-side apex Zb is located with respect to the joint 2 is the other side in the thickness direction is the lower side in fig. 8.

The one-side vertex Za of the wrapping sheet 21 is a portion in which the wrapping sheet 21 is pulled particularly strongly in the longitudinal direction and the thickness direction due to the joint portions 2 provided at both ends in the longitudinal direction and the thickness of the sanitary napkin 10 and the wrapping 20 after being folded a plurality of times. Therefore, the one-side apex Za becomes a portion of the wrapping sheet 21 to which strong tension is applied.

In the package 1 folded (rolled) to be compact, even if a strong tensile force is applied to the position of the one side apex Za of the package sheet 21, the attachment of the package sheets 21 to each other at the end portion of the package sheet 21 on the side of the one side end 21a is reduced by providing at least part of the one side end 21a of the package sheet 21 as the opening end at a position different from the one side apex Za and at a position where the tensile force is relaxed compared to the one side apex Za, as compared with the portion where the one side end 21a is provided at the position of the one side apex Za, and the wearer can easily pinch the end portion of the package sheet 21 including the one side end 21 a. As a result, the operation of pinching the end portion of the wrapping sheet 21 and opening the pinched portion to spread the wrapping sheet is easy as shown in fig. 4.

In the present embodiment, as shown in fig. 8, the one-side apex Za is provided at a position on the one side of the joint portion 2 in the thickness direction, and the one-side end 21a, which is the opening end of the package sheet 21, is provided at a position on the one side of the joint portion 2 in the thickness direction, but the present invention is not limited thereto. The one end 21a, which is the opening end of the package sheet 21, may be provided at a position on the other side in the thickness direction than the joint 2 with respect to the one-side apex Za provided at one side in the thickness direction, or the one-side end 21a may be provided at a position overlapping the joint 2 in the thickness direction.

Further, since the package sheet 21 of the package 1 in the packaged state is easily placed in a state where a strong tensile force is also applied to the other side vertex Zb, it is preferable to have a portion where at least part of the one side end 21a of the package sheet 21 is placed at a position different from the other side vertex Zb. This facilitates the wearer to pinch the portion of the wrapping sheet 21 where the tension is relaxed compared with the portion where the one side end 21a and the other side apex Zb overlap, and facilitates the unfolding of the wrapped package 1.

Further, at least part of the one end 21a of the wrapping sheet 21 is preferably provided at a position different from the position where the wing portion 10W and the wing adhesive portion 16 are arranged and the length in the direction along the outer end is also longer. This facilitates pinching of the loose tension portion of the wrapping sheet 21 and easy unfolding of the package 1.

An adhesive portion 3 for adhering the package sheets 21 to each other by an adhesive 3h is provided at an end portion of the package sheet 21 on the side of the one end 21 a. The adhesive portion 3 has a rectangular shape along the longitudinal direction along one end 21a in the present embodiment. By having the adhesive portion 3, the packaged state of the package 1 can be easily maintained, and the risk of dust or the like being mixed inside the package 1 can be reduced.

The adhesive portion 3 preferably has a non-adhesive portion 9 adjacent to the adhesive portion 3 in a direction intersecting with a direction (longitudinal direction) along the one end 21 a. The non-bonded portion 9 is a so-called dry edge, and is a portion where the portions of the wrapping sheet 21 adjacent to each other in the thickness direction are not bonded to each other. In the present embodiment, the non-adhesive portion 9 is a region including the one side end 21a and is a region having a predetermined width along the one side end 21 a. By providing the non-adhesive portion 9, the end portion of the wrapping sheet 21 including the one end 21a is easily pinched when the wrapped package 1 is unfolded.

Further, it is more preferable that, when the package 1 in a state of being packaged by the package sheet 21 having the adhesive portion 3 and the non-adhesive portion 9 adjacent to the adhesive portion 3 from the side of the one end 21a is viewed from the end side in the longitudinal direction to the inside, at least part of the adhesive portion 3 is provided at a position different from the one-side apex Za. Since the one-side apex Za of the package sheet 21 is a portion to which strong tension is applied, providing the adhesive portion 3 at a position different from the one-side apex Za reduces the risk of applying excessive tension to the adhesive portion 3, and thus, it is easy to more reliably adhere the package sheets 21 to each other, and it is easy to maintain the packaged state of the package body 1.

= = other embodiments= = = =

In the above embodiment, the following cases are described: as shown in fig. 3 and the like, the length L2 of the outer end of the joint 2 is longer than the length L1 in the direction along the outer end at the center C-C in the longitudinal direction of the package 1, and the length L2 of the outer end of the joint 2 is longest with respect to the length in the direction along the outer end of the package 1, but is not limited thereto. Any package may be used as long as it is: at the center C-C in the longitudinal direction, the length W in the width direction is longer than the length T in the thickness direction (T < W), and half (1/2W) of the length W in the width direction is shorter than the length T in the thickness direction (1/2W < T), and the length in the direction along the outer end of the cross section orthogonal to the longitudinal direction of the package 1 at the predetermined position between the joint portions 2 is shorter than the length L2 in the direction along the outer end of the outer end 2 e. That is, only a portion having a length in the direction along the outer end shorter than the length L2 of the outer end 2e may be provided at least partially between the joined portions 2 of the package 1.

For example, the package 100 shown in fig. 11 may be used. Fig. 11 is a view illustrating a package 100 in a packaged state according to another embodiment. The following mainly describes portions different from the above-described embodiments, and portions common to the structures of the above-described embodiments are denoted by the same reference numerals and detailed description thereof is omitted.

In the package 100, the length of the outer end of the joint 2 is longer than the length of the package 100 in the direction along the outer end of a cross section orthogonal to the longitudinal direction at a predetermined position between the joints 2, as in the package 1 described above. Specifically, when the predetermined position is the smaller width portion 1n, the length L2a of the outer end 2e of the one side joint portion 2a is longer than the length L3 of the smaller width portion 1n in the direction along the outer end, and the length L2b of the outer end 2e of the other side joint portion 2b is longer than the length L3 of the smaller width portion 1n in the direction along the outer end.

Further, like the joint 2 of the package 100, the length L2a of the outer end of the one joint 2a may be different from the length L2b of the outer end of the other joint 2 b. Specifically, as shown in fig. 11, the length L2a of the outer end of the one-side joint 2a of the package 100 is shorter than the length L2b of the outer end of the other-side joint 2 b.

The length L1 of the package 100 in the direction along the outer ends at the center C-C in the longitudinal direction between the joint portions 2 is longer than the lengths L2 (L2 a, L2 b) of the outer ends of the joint portions 2 (2 a, 2 b). In such a package 100, at least at the "predetermined position between the joining portions 2 in the longitudinal direction", a portion having a length in the direction along the outer end shorter than the length of the outer end 2e of the one joining portion 2a or the length of the outer end 2e of the other joining portion 2b may be provided. In the package 100, at least the smaller width portion 1n is a "predetermined position", and the length L3 of the smaller width portion 1n in the direction along the outer end is shorter than the lengths L2a, L2b of the outer end 2e in the direction along the outer end (L3 < L2a, L3 < L2 b).

In this way, also in the package 100, the width direction length W is longer than the thickness direction length T in the cross section at the center C-C in the longitudinal direction, and therefore, when the package 100 is held, the width direction portion longer than the thickness direction length in the package 100 is easily made to follow the palm, and the thickness direction portion shorter than the width direction length is easily made to follow the curved annular shape formed by the fingers, and therefore, the package is easily accommodated inside the annular shape formed by the fingers, and is easy to hold, as compared with the case of holding a cylindrical package having a perfect circular cross section shape. The number of portions of the fingers and palm that contact the outer surface of the package 100 when the package 100 is gripped is increased, thereby reducing the risk of the package 1 in a gripped state slipping off the hand. Further, since the risk of rolling of the package 100 when placed on a flat surface is reduced as compared with a case where the cross-sectional shape at the center C-C in the longitudinal direction is a perfect circle, the risk of dropping the package 100 onto the floor of a toilet or the like is easily reduced, and the sanitary napkin 10 is easily kept sanitary.

In addition, by the package 100 having the length L3 in the direction along the outer end of the cross section orthogonal to the longitudinal direction at the portion 1n (predetermined position) where the width between the joined portions 2 of the package 100 is small compared with the lengths L2a, L2b in the direction along the outer end of the outer end 2e, even when the package 100 is to be slipped off from the state where the package 100 is held, the risk of dropping the package 1 completely away from the hand is easily reduced by the outer end 2e of the package 100 having the length longer than the length L3 in the direction along the outer end at the portion 1n in the longitudinal direction being caught by the arch (loop) formed by the finger. In particular, since the smaller width portions 1n of the package 100 are sandwiched between the portions longer than the smaller width portions 1n in the length direction along the outer ends, the fingers of the wearer can be easily accommodated in the smaller width portions 1n, and the fingers can be easily fitted (embedded) in the recessed portions of the smaller width portions 1n, so that the wearer can easily grasp the package 1, and the risk of the package 1 in a grasped state slipping out of the hand can be easily reduced.

Further, in the package 100, the sanitary napkin 10 and the package 20 (the package sheet 21, the release sheets 22 and 23) are laminated to each other at the portion where the flap portion 10W and the flap adhesive portion 16 are disposed and at the portion where the absorbent core 11 having a thicker thickness is provided, and thus, there are cases where: the length in the direction along the outer end at the position where the flap portion 10W and the flap adhesive portion 16 are arranged is longest in the package 100 (longer than the length L1 in the direction along the outer end at the center C-C position in the longitudinal direction). This is because, in the portion where the flap portion 10W and the flap adhesive portion 16 are disposed, more materials overlap and the thickness increases.

The embodiments of the present invention have been described above, but the above embodiments are for the purpose of facilitating understanding of the present invention, and are not intended to limit the present invention. It is to be understood that the present invention can be modified and improved without departing from the spirit thereof, and equivalents thereof are included in the present invention.

In the above-described embodiment, the one-side joint portion 2a and the other-side joint portion 2b are provided at the central portion in the thickness direction, but it is not necessarily required to provide the joint portion 2 at the central portion in the thickness direction, and the joint portion 2 may be provided at a position closer to one side (or the other side) than the central portion in the thickness direction of the package 1. For example, when the one-side joint portion 2a and the other-side joint portion 2b are provided at a position closer to one side than the center in the thickness direction, the other side in the thickness direction of the package sheet 21 tends to be in a state where tension is applied stronger than the one side in the thickness direction of the package sheet 21. Therefore, when the wearer grips the package 1 as shown in fig. 9, the tension and the elastic force of the package sheet 21 at the time of gripping are different between one side and the other side in the thickness direction, and thus the touch feeling at the time of gripping is easily made different. Thus, the package 1 is easy to hold, and the risk of the package 1 falling from the held state is easily reduced, compared to the case where the touch feeling at the time of holding on one side and the other side in the thickness direction of the package 1 is the same, but the touch feeling does not change in fluctuation.

In the above-described embodiment, the one-side joint portion 2a and the other-side joint portion 2b are provided at substantially the same position in the thickness direction (the central portion in the thickness direction), but the present invention is not limited thereto. The one-side joint portion 2a and the other-side joint portion 2b may be provided at different positions in the thickness direction. For example, the one-side joint portion 2a may be provided at one side of the center in the thickness direction, and the other-side joint portion 2b may be provided at the other side of the center in the thickness direction. Thereby being easily formed as: on one side and the other side in the longitudinal direction of the package 1, the tension applied to the package sheet 21 is made different on one side and the other side in the thickness direction. Therefore, the risk of both the joining of the one-side joining portion 2a and the joining of the other-side joining portion 2b being peeled off at the same time is easily reduced, and the risk of unintentional opening and unfolding of the package 1 is easily reduced, so that the package 1 is easily kept hygienic.

Further, at least one of the one-side joint portion 2a and the other-side joint portion 2b may be provided at one side or the other side of the center in the thickness direction, and the one-side joint portion 2a and the other-side joint portion 2b may be provided at different positions in the thickness direction. The outer end 2e of the one-side joint portion 2a and the outer end 2e of the other-side joint portion 2b may be set at different angles. In the case where the outer ends 2e, 2e of the one-side joint portion 2a and the other-side joint portion 2b are at different angles, either one of the one-side joint portion 2a and the other-side joint portion 2b can be used as a direction along the outer ends.

The package 1, 100 according to the above embodiment may be configured to include a band member (not shown) to be held by a wearer when unsealing. For example, the package 20 may include a tape member and a package sheet 21 as a film member for covering the sanitary napkin 10, the package sheet 21 of the film member may include an outer film end portion located at the outermost side surface of the package 1, 100 along the longitudinal direction, and the tape member may be detachably adhered to a portion of the package sheet 21 adjacent in the thickness direction across the edge of the outer film end portion. At this time, the edge of the first developed side of the band member is the edge of the package 20 (corresponding to the one side end 21a of the package 1, 100) as the opening end of the package. The use of the strap members allows the wearer to easily identify the first portion of the package 1, 100 to be unfolded when it is unfolded.

Description of the reference numerals

1. 100, a package (absorbent article package); 2. a joint; 2a, one side joint; 2b, the other side joint; 2e, the outer end; 3. an adhesive part; 3h, an adhesive; 9. a non-adhesive portion; 10. sanitary napkins (absorbent articles); 10W, a wing part; 11. an absorbent core (absorber); 12. a top sheet; 13. a negative; 14. a side panel; 20. a package; 21. packaging sheet (package); 21a, an opening end (edge of the package); f1 to F7, folded portion; m, a welding part (pressure welding part); MC, ML, identification; za, one side vertex (vertex); zb, the other side vertex.

Claims

1. An absorbent article package comprising: an absorbent article; and a package for packaging the absorbent article, characterized in that,

the absorbent article is folded a plurality of times or rolled up in a state of being placed on the inner side surface of the package,

the absorbent article has a longitudinal direction, a width direction and a thickness direction orthogonal to each other,

the width direction is a direction orthogonal to the longitudinal direction and along an imaginary line passing through two points farthest apart on a profile of a cross section at a center of the longitudinal direction,

the two ends of the length direction are respectively provided with a joint part, the packages are jointed with each other at the joint parts,

at the center in the length direction of the tube,

the length in the width direction is longer than the length in the thickness direction,

half of the length in the width direction is shorter than the length in the thickness direction,

a direction along an outermost outer end of the joint portion in the longitudinal direction intersects the longitudinal direction,

the length of the absorbent article package in the direction along the outer end in a cross section orthogonal to the longitudinal direction at a predetermined position between the joined portions is shorter than the length of the outer end in the direction along the outer end.

2. The absorbent article package of claim 1, wherein the absorbent article package,

the smaller angle of the angles formed by the direction along the joint and the width direction is 45 DEG or less.

3. The absorbent article package of claim 1 or 2, wherein,

in the thickness direction, the joint portion is located on one side of a center of the absorbent article package in the thickness direction.

4. The absorbent article package according to any one of claim 1 to 3,

the joint part is provided with a joint part at one side of the end part in the length direction and a joint part at the other side of the end part in the other side in the length direction,

the one-side joint portion and the other-side joint portion are provided at different positions in the thickness direction.

5. The absorbent article package according to any one of claims 1 to 4, wherein,

the absorbent article package has a smaller width portion having a shorter length in the width direction than the length in the width direction at the center in the length direction between the center in the length direction and the joint portion.

6. The absorbent article package of claim 5 wherein,

the absorbent article comprises an absorber for absorbing liquid,

in the direction of the length of the tube,

an end of the absorber is provided between the center in the longitudinal direction and the joint portion,

the smaller width portion is located between the engagement portion and an end of the absorber.

7. The absorbent article package according to any one of claims 1 to 6, wherein,

the absorbent article comprises an absorber for absorbing liquid,

in the direction of the length of the tube,

one side end of the absorber is arranged between the center of the length direction and the one side joint part,

the other side end of the absorber is arranged between the center of the length direction and the other side joint part,

the number of wrinkles per unit area between the joint portion and the end of the absorber in the longitudinal direction is greater than the number of wrinkles per unit area in a region from one end of the absorber to the other end of the absorber in the longitudinal direction.

8. The absorbent article package according to any one of claims 1 to 7, wherein,

the absorbent article comprises an absorber for absorbing liquid,

the absorbent body has pulp fibers and is devoid of latent crimp fibers.

9. The absorbent article package according to any one of claims 1 to 8, wherein,

the package has a one-side package portion, a one-side adjacent package portion, a other-side package portion, and a other-side adjacent package portion,

the one-side packing portion is located at a position closest to the one side in the thickness direction,

the one-side adjacent packing portion is adjacent to the one-side packing portion from the other side of the one-side packing portion in the thickness direction,

the other side packing part is positioned at the position closest to the other side in the thickness direction,

the other side adjacent packing portion is adjacent to the other side packing portion from one side of the other side packing portion in the thickness direction,

at the joint portion, at least part of the one side wrapping portion is joined to at least part of the one side adjacent wrapping portion, and at least part of the other side wrapping portion is joined to at least part of the other side adjacent wrapping portion,

The force of peeling the one side package portion from the one side adjacent package portion is greater than the force of peeling the other side package portion from the other side adjacent package portion.

10. The absorbent article package according to any one of claims 1 to 9, wherein,

the joint portion has a plurality of crimping portions,

the difference between the length of the outer end of the joint portion and the length of the absorbent article package in the direction along the outer end at the center in the longitudinal direction is longer than the length of the crimp portion in the direction along the outer end.

11. The absorbent article package according to any one of claims 1 to 10, wherein,

the joint portion has a plurality of crimping portions,

at least one of the crimping portions is located at a position outside the contour at the predetermined position when viewed from the end portion side toward the inside in the length direction.

12. The absorbent article package according to any one of claims 1 to 11, wherein,

at least part of the edges of the package are first unfolded when the absorbent article package is unfolded,

when viewed from the end portion side toward the inside in the length direction,

When the point of the outline of the absorbent article package farthest from the joint in the thickness direction is taken as the apex,

at least part of the edge of the package is located at a different position than the apex.

13. The absorbent article package according to any one of claims 1 to 12, wherein,

the package has a bonded portion in which portions adjacent in the thickness direction in the package are bonded and a non-bonded portion in which portions adjacent in the thickness direction in the package are not bonded,

the non-adhesive portion is provided in an area containing the edge of the package,

the adhesive portion is provided adjacent to the non-adhesive portion in a crossing direction crossing a direction along an edge of the package.