CN112869954B

CN112869954B - Package of absorbent article

Info

Publication number: CN112869954B
Application number: CN202011360484.2A
Authority: CN
Inventors: 木下章惠; 合田裕树
Original assignee: Unicharm Corp
Current assignee: Unicharm Corp
Priority date: 2019-11-29
Filing date: 2020-11-27
Publication date: 2023-05-30
Anticipated expiration: 2040-11-27
Also published as: JP7241007B2; CN112869954A; JP2021083967A

Abstract

The invention provides an open type absorbent article, a package of the absorbent article and a method for manufacturing the same, which can restrain side leakage caused by habitual bending before use and can be compactly stored before use. The open type absorbent article has a front waist region covering the front waist of a wearer, a rear waist region covering the rear waist of a wearer, a crotch region disposed between the front waist region and the rear waist region, and an absorbent core disposed at least in the crotch region. The absorbent article is folded with a width folding line along the width direction and a front-rear folding line along the front-rear direction as base points. The front-back folding line has a core front-back folding line that folds the absorbent core in the crotch region so that the skin-surface sides of the absorbent core face each other.

Description

Package of absorbent article

Technical Field

The present invention relates to an open type absorbent article having a front waistline region, a rear waistline region, and a crotch region, a package of the absorbent article, and a method for manufacturing the package.

Background

Patent document 1 discloses an open type absorbent article having a front waistline region, a rear waistline region, and a crotch region. The open type absorbent article in patent document 1 is stored in a pouch-shaped package sheet in a state of being folded a plurality of times. Specifically, from an unfolded state in which the open type absorbent article is not folded by the folding line, the open type absorbent article is folded with the front-rear folding line located on the outer side in the width direction from the absorbent core and along the front-rear direction as a base point, and then is folded with the front-rear folding line as a base point, with the open type absorbent article folded with the width folding line located at the substantially center in the front-rear direction and along the width direction as a base point. As described above, the open type absorbent article is stored in the package sheet in a state of being folded around the front-back folding line and the width folding line (see fig. 1 of patent document 1).

Prior art literature

Patent literature

Patent document 1: japanese patent laid-open publication No. 2005-47523

Disclosure of Invention

In the open type absorbent article thus constructed, a habitual fold formed by a fold line folded before use is provided. The width folding line is a folding line folded so that the skin surface sides face each other over the entire area in the width direction of the absorbent core. Therefore, the width folding line may deform so as to be away from the crotch of the wearer over the entire area of the absorbent core in the width direction, and side leakage may occur. In particular, in an absorbent article having a front waistline region, a rear waistline region, and a crotch region, the absorbent article itself has a body-covering portion, and is not pressed against the body through the wearing article like a sanitary napkin, and the habitual bending of the absorbent article itself easily affects the shape of the wearing state.

In the open type absorbent article of patent document 1, the length in the front-rear direction in the folded state is about half the length in the unfolded state, and the length in the width direction in the folded state is equal to or greater than the length in the width direction of the absorbent core. Therefore, the length in the front-rear direction and the width direction in the folded state is long, and it is difficult to compactly store the absorbent article during transportation.

Accordingly, an object of the present invention is to provide an open type absorbent article having a front waistline region, a rear waistline region, and a crotch region, which can suppress occurrence of side leakage due to habitual bending before use and can be compactly stored before use.

An open type absorbent article according to one embodiment has a front waist region covering a front waist of a wearer, a rear waist region covering a rear waist of the wearer, a crotch region disposed between the front waist region and the rear waist region, and an absorbent core disposed at least in the crotch region. The absorbent article is foldable with a width folding line along the width direction and a front-rear folding line along the front-rear direction as base points. The front-back folding line has a core front-back folding line that folds the absorbent core in the crotch region so that skin-side sides of the absorbent core face each other.

The package of the absorbent article according to one embodiment has the absorbent article and a package sheet for individually packaging the absorbent article. The package of the absorbent article is provided with temporary joining portions that abut against the absorbent article and the packaging sheet, respectively, and temporarily join the absorbent article and the packaging sheet. The temporary joining portion has a joining strength with respect to the packaging sheet that is higher than a joining strength of the temporary joining portion with respect to the absorbent article.

A method for manufacturing an absorbent article according to one embodiment is a method for manufacturing a package of an absorbent article having an open absorbent article and a package sheet, the open absorbent article having a front waistline region covering a front waistline of a wearer, a back waistline region covering a back waistline of the wearer, a crotch region disposed between the front waistline region and the back waistline region, and an absorbent core disposed at least in the crotch region, the package sheet independently packaging the absorbent article. The method for manufacturing the package of the absorbent article comprises the following steps: a step 1 in which the absorbent core in the crotch region is folded with the front and rear folding lines as the base points so that the skin surface sides face each other; a step 2 of placing the absorbent article folded in the folding step 1 on the wrapping sheet; a step 3 of folding the packaging sheet along the front-rear folding line of the core in the step 3 after the step 2; and a 4 th step of folding the packaging sheet and the absorbent article with a width folding line extending in the width direction as a base point in the 4 th step after the 3 rd step.

Drawings

Fig. 1 is a plan view of an absorbent article package in an unfolded state as seen from the skin-facing surface side.

Fig. 2 is a plan view of the package of the absorbent article in an unfolded state as seen from the non-skin-facing surface side.

Fig. 3 is a view for explaining a folded form of the package of the absorbent article shown in fig. 1.

Description of the reference numerals

1. A package of absorbent articles; 10. an open absorbent article; 31. an absorbent core; 50. a temporary joint; 60. leak-proof pleats; 63. a rising part; 100. packaging the sheet; FL, front-rear fold line; FL1, 1 st front-rear fold line (article front-rear fold line); FL2, 2 nd front-back fold line (core front-back fold line); FW, width fold line.

Detailed Description

(1) Summary of the embodiments

At least the following matters are clarified from the description of the present specification and the drawings.

An open type absorbent article according to one embodiment has a front waist region covering a front waist of a wearer, a rear waist region covering a rear waist of the wearer, a crotch region disposed between the front waist region and the rear waist region, and an absorbent core disposed at least in the crotch region. The absorbent article is foldable with a width folding line along the width direction and a front-rear folding line along the front-rear direction as base points. The front-back folding line has a core front-back folding line that folds the absorbent core in the crotch region so that skin-side sides of the absorbent core face each other. At least habitual bends formed by fold lines in the front and back of the core are formed in the absorbent core. Since the front-back core folding line is a folding line that is folded so that the skin surface sides of the absorbent article face each other, the region outside the front-back core folding line in the width direction stands up toward the wearer side due to habitual folding. Therefore, the side portions in the width direction of the absorbent core in the crotch region are deformed so as to stand up to the wearer's side by habitual bending, and side leakage can be suppressed. Further, since the absorbent core is folded by the core front-rear folding line, the length in the width direction of the absorbent article in the folded state can be easily shortened, and the absorbent article can be compactly stored before use.

According to a preferred embodiment, a pair of the core front-rear folding lines may be provided across the center in the width direction of the absorbent core. The absorbent article such as a diaper is configured to hold excretions such as urine excreted irregularly, and unlike a configuration that holds menstrual blood excreted intermittently such as a sanitary napkin, it is preferable that the crotch region is not placed in close contact with the body. The region between the pair of core front-rear folding lines is raised to the outside of the core front-rear folding line, and the cross section along the width direction is cup-shaped. Thus, a larger space for holding body fluid can be ensured. The vicinity of the front-back folding line of the core is separated from the body by habitual bending, and a space for holding body fluid can be ensured.

In a preferred embodiment, the front-rear folding line includes an article front-rear folding line which is positioned further outward in the width direction than the absorbent core in the unfolded state and folds the absorbent article so that the skin sides face each other, and the core front-rear folding line folds the absorbent core in a 1 st folded state in which the article front-rear folding line is folded at the base point. According to this aspect, the absorbent article can be folded in the width direction by the article front-rear folding line and the core front-rear folding line, and the length of the absorbent article in the width direction before use can be further shortened. The habitual fold formed by the front-rear folding line of the article becomes a habitual fold in which the skin surface sides of the absorbent article face each other. The body can be raised on both sides across the article front-rear folding line in the width direction, and the fit during wearing can be improved.

According to a preferred embodiment, the width folding line may fold the absorbent article in a 2 nd folded state in which the core front-rear folding line is folded as a base point. According to this aspect, by folding the absorbent article with the width folding line as the base point, the length of the absorbent article in the front-rear direction can be further shortened in a state where the length of the absorbent article in the width direction is shortened. The absorbent article can be compactly stored before use. Further, since the folding is performed using the front-back core folding line and then using the width folding line as a base point, the habitual folding of the front-back core folding line is easily formed more strongly, and the folded state is easily maintained. Therefore, the effect of suppressing the side leakage by the habitual bending is more easily obtained.

According to a preferred embodiment, a pair of the width folding lines may be provided at intervals in the front-rear direction. According to this aspect, the length of the absorbent article in the front-rear direction can be further reduced, and the absorbent article can be compactly stored before use.

The package of an open type absorbent article according to one embodiment includes the absorbent article and a package sheet for individually packaging the absorbent article. The package of the open type absorbent article is provided with temporary joining portions that abut the absorbent article and the packaging sheet, respectively, and temporarily join the absorbent article and the packaging sheet. The temporary joining portion has a joining strength with respect to the packaging sheet that is higher than a joining strength of the temporary joining portion with respect to the absorbent article. The temporary joint portion can fix the relative position of the package sheet and the absorbent article, and can be folded stably. The temporary joint has a high joint strength with respect to the wrapping sheet and a low joint strength with respect to the absorbent article. Therefore, when the absorbent article is peeled off from the packaging sheet at the time of use, the temporary joint portion is liable to remain on the packaging sheet side. Since the temporary joining portion is not attached to the absorbent article when in use, it is possible to suppress the uncomfortable feeling caused by the temporary joining portion being disposed on the non-skin surface side of the absorbent article when in use.

According to a preferred embodiment, the temporary joint may be disposed in a region overlapping the absorbent core. The absorbent core is also a relatively stiff member in an absorbent article. The region overlapping the absorbent core having relatively high rigidity is fixed to the packaging sheet by the temporary joint portion, whereby the positions of the absorbent article and the packaging sheet can be stabilized.

According to a preferred embodiment, the absorbent article may have a standing leakage preventing gather located closer to the skin than the absorbent core, the leakage preventing gather may have a fixing portion fixed to a topsheet and a standing portion capable of standing up with respect to the topsheet, the topsheet may be located closer to the skin than the absorbent core, a pair of the width folding lines may be provided with a gap therebetween in the front-rear direction with respect to a center of the standing portion in the front-rear direction, and at least a part of the temporary joining portions may be disposed at positions outside the width folding lines in the front-rear direction. In the absorbent article, the region overlapping the temporary joint portion is applied with a force that stretches toward the package sheet side in the unfolded state when in use. The temporary joining section is disposed at the outer side in the front-rear direction than the center of the standing portion of the leakage preventing gather, and is therefore stretched toward the package sheet side via the temporary joining section. In this case, since the temporary joint portion is disposed outside the width folding line, the area outside the width folding line in the front-rear direction is more easily developed with the width folding line as a base point. Therefore, the rising portion located between the width folding lines is easily raised. By improving the rising property of the leakage preventing gathers, side leakage can be further suppressed.

According to a preferred embodiment, the absorbent article may have an erectable leakage preventing gather located closer to the skin than the absorbent core, the leakage preventing gather may have a fixing portion fixed to a topsheet and an erectable portion capable of being erected with respect to the topsheet, the topsheet may be located closer to the skin than the absorbent core, and at least a part of the temporary joining portion may be located further to the outside in the front-rear direction than the erectable portion in the unfolded state. In the absorbent article, a force is applied to the region overlapping the temporary joint portion in the unfolded state to stretch the package sheet side. The region outside the standing portion of the leakage preventing gather in the front-rear direction is pulled toward the packaging sheet side via the temporary joining portion, whereby the standing portion is easily standing. By improving the rising property of the leakage preventing gathers, side leakage can be further suppressed.

A method for manufacturing an open type absorbent article according to one embodiment is a method for manufacturing a package of an absorbent article having an open type absorbent article having a front waist region covering a front waist of a wearer, a rear waist region covering a rear waist of the wearer, a crotch region disposed between the front waist region and the rear waist region, and an absorbent core disposed at least in the crotch region, and a package sheet for individually packaging the absorbent article. The method for manufacturing the package of the absorbent article comprises the following steps: a step 1 in which the absorbent core in the crotch region is folded with the front and rear folding lines as the base points so that the skin surface sides face each other; a step 2 of placing the absorbent article folded in the folding step 1 on the wrapping sheet; a step 3 of folding the packaging sheet along the front-rear folding line of the core in the step 3 after the step 2; and a 4 th step of folding the packaging sheet and the absorbent article with a width folding line extending in the width direction as a base point in the 4 th step after the 3 rd step. After the absorbent article is folded in step 1, the packaging sheet is folded along the folding line of the absorbent article in step 3, whereby the temporarily folded absorbent article can be refolded. Therefore, it is possible to fold more compactly. In particular, the present invention can be suitably applied to an absorbent article having a relatively long length in the width direction, such as a disposable diaper.

According to a preferred embodiment, in the step 3, the folded package sheets are folded so as to overlap each other, and the overlapped package sheets are joined to each other by a package joining portion. By joining the package pieces to each other via the package joining portion, the folded package pieces can be maintained in a folded state without being unfolded, and the absorbent article can be stored more compactly.

(2) Open type absorbent article and structure of package of absorbent article

The open type absorbent article 10 and the absorbent article package 1 according to the embodiment are described in detail below with reference to the drawings. In the description of the drawings below, the same or similar parts are denoted by the same or similar reference numerals. However, the drawings are schematic, and it should be noted that the ratio of the respective dimensions and the like are different from reality. Therefore, specific dimensions and the like should be judged with reference to the following description. The drawings may include portions having different dimensional relationships and ratios.

Fig. 1 is a developed plan view of the package 1 of absorbent articles seen from the skin-facing surface side, and fig. 2 is a developed plan view of the package 1 of absorbent articles seen from the non-skin-facing surface side. The unfolded state is a state in which the front-rear folding line FL and the width folding line FW, which will be described later, are not used. The plan views shown in fig. 1 and 2 show an extended state in which the absorbent article 10 is extended to a state in which no wrinkles are formed. The package 1 of absorbent articles (hereinafter referred to as package 1) has an open type absorbent article 10 (hereinafter referred to as absorbent article) and a package sheet 100 for individually packaging the absorbent article 10. The open type absorbent article is an absorbent article in which a side joining portion that joins the outer side portions of the waist region is not formed, and is an absorbent article in which the outer side portions of the waist region are joined by a fastening member such as a hook and loop fastener when worn. As the absorbent article 10, for example, an absorbent article can be exemplified.

In the present invention, the outer side portion means a portion that includes an outer edge in the width direction W and occupies a certain range in the width direction W, and the outer edge means an outer edge in the width direction W. The inner side in the present invention means a portion that occupies a certain range in the width direction W including an inner edge in the width direction W, and the inner edge means an inner edge in the width direction W. In the present invention, the front end portion and the rear end portion are portions that occupy a certain range in the front-rear direction L including edges in the front-rear direction L, and the front end edge and the rear end edge are edges in the front-rear direction L. The outer end portion includes a front end portion and a rear end portion, and the outer end edge includes a front end edge and a rear end edge.

The absorbent article 10 may have a front-back direction L extending along the front and back sides of the wearer's body, a width direction W orthogonal to the front-back direction L, and a thickness direction T extending along a skin-facing surface side T1 facing the wearer and a non-skin-facing surface side T2 facing the opposite side to the skin-facing surface side T1. The absorbent article 10 has a front waistline region S1, a rear waistline region S2, and a crotch region S3. The front waistline region S1 is a region covering the front waistline (abdomen) of the wearer. The rear waistline region S2 is a region covering the rear waistline (back) of the wearer. The crotch region S3 is a region disposed between the front waistline region S1 and the back waistline region S2, and covers the crotch of the wearer.

The absorbent article 10 may have a fastening member that joins the front waistline region S1 and the back waistline region S2 when worn. The fastening member may be constituted by a hook and loop fastener 90. The fastening tape 90 is configured to extend outward in the width direction W in the rear waistline region S2 and to be capable of being fastened to the non-skin surface of the front waistline region S1. The absorbent article 10 may have leg hole openings 35 that enclose the leg holes of the wearer. The leg hole opening 35 is recessed inward in the width direction W at the outer side of the absorbent article 10. The leg hole opening 35 is disposed in the crotch region S3. The crotch region S3 may be a region provided with the leg hole opening 35. In a state where the fastening tape 90 is fastened, a waist opening surrounding the waist of the wearer and a pair of leg hole openings surrounding the leg holes of the wearer are formed in the absorbent article 10. The waist opening portion may be formed by a front end edge of the front waistline region S1 and a rear end edge of the rear waistline region S2, and the leg-surrounding opening portion may be formed by the leg-surrounding opening portion 35.

The absorbent article 10 includes an absorbent core 31 containing an absorbent material. The absorbent core 31 is disposed at least in the crotch region S3. The absorbent core 31 comprises an absorbent material such as comminuted pulp or superabsorbent polymer (SAP), or mixtures thereof. The absorbent core 31 may be covered with a core wrap, not shown. The absorbent body may be constituted by the absorbent core 31 and the core wrap. The core wrap may be made of tissue paper or SMS nonwoven fabric, and may be disposed on the skin-facing side T1 of the absorbent core 31 and the non-skin-facing side T2 of the absorbent core 31.

The absorbent article 10 has a skin-side sheet 20 positioned closer to the skin-facing surface side T1 than the absorbent core 31. The skin-side sheet 20 covers the absorbent core 31 and is disposed over the entire absorbent article 10. The skin side sheet 20 of the present embodiment includes a surface sheet 21 and a pair of side sheets 22. In the absorbent article having the core wrap, the skin-side sheet 20 is positioned closer to the skin-facing surface T1 than the core wrap. The topsheet 21 may be disposed across the center of the absorbent core 31 in the width direction W. The side sheet 22 may be configured to cover both outer side portions of the surface sheet 21. The front sheet 21 and the side sheet 22 may be made of, for example, nonwoven fabric or a liquid-permeable sheet such as an apertured plastic film.

The pair of side sheets 22 can each constitute a standing leakage prevention gather 60. The leakage preventing gathers 60 are located closer to the skin than the absorbent core 31. The leakage preventing gather 60 has a fixing portion 64 fixed to the topsheet 21 and a standing portion 63 capable of standing up with respect to the topsheet 21. The inner side portions of the side panels 22 may be folded back to overlap. Between the overlapped side panels 22, a leakage-proof elastic member 61 that stretches and contracts in the front-rear direction L may be provided. The leakage preventing elastic member 61 may be constituted by elastic threads stretching in the front-rear direction L. The rising portion 63 of the leakage preventing gather rises toward the skin-facing surface side T1 due to contraction of the leakage preventing elastic member 61, and forms a wall for preventing side leakage on the side of the center in the width direction of the absorbent article 10. The fixing portion 64 serves as a standing fulcrum of the standing portion 63. The side sheet 22 and the surface sheet 21 are joined together at the fixing portions 64. The rising portion 63 is a portion where the side sheet 22 is not joined to the front sheet 21 and can be contracted by the leakage preventing elastic member 61, and the rising portion 63 does not include a portion where the leakage preventing elastic member 61 in a non-extended state is disposed. The fixing portion 64 includes a rear fixing portion 64A located on the rear side of the standing portion 63, a width fixing portion 64B located on the outer side of the standing portion 63 in the width direction W, and a front fixing portion 64C located on the front side of the standing portion 63.

The absorbent article 10 has a non-skin side sheet 25 located on the non-skin-facing side T2 of the absorbent core 31. The non-skin side sheet 25 covers the absorbent core 31 and is disposed over the entire absorbent article. The non-skin side sheet 25 of the present embodiment includes a back sheet 23 and an outer sheet 24. In the absorbent article having the core wrap, the non-skin-side sheet 25 is a sheet located on the non-skin-facing side T2 of the core wrap. The back sheet 23 is a liquid-impermeable sheet, and may be a laminated nonwoven fabric mainly composed of a polyethylene sheet, polypropylene or the like, a breathable resin film, a sheet in which a breathable resin film is bonded to a nonwoven fabric such as spun-bonded or spun-laced. The outer sheet 24 may be provided on the non-skin-facing side T2 of the back sheet 23. The outer sheet 24 may be made of a liquid-permeable nonwoven fabric. The length of the back sheet 23 in the width direction W may be shorter than the length of the exterior sheet 24 in the width direction W, and the length of the back sheet 23 in the front-back direction L may be shorter than the length of the exterior sheet 24 in the front-back direction L.

The packaging sheet 100 is a sheet for individually packaging the absorbent article 10. The wrapper sheet 100 may be folded either with the absorbent article 10 or independently of the absorbent article 10. The package sheet 100 is a sheet having a rectangular shape in an expanded state. The wrapper sheet 100 may be formed of a film or a nonwoven. The absorbent article 10 and the packaging sheet 100 are folded with the width folding line FW along the width direction W and the front-rear folding line FL along the front-rear direction L as the base points. The front-rear fold line FL may have a pair of 1 st front-rear fold lines FL1, a pair of 2 nd front-rear fold lines FL2, and a pair of 3 rd front-rear fold lines FL3. The 1 st front-rear folding line FL1 constitutes the "article front-rear folding line" of the present invention, and the 2 nd front-rear folding line FL2 constitutes the "core front-rear folding line" of the present invention. The width folding line FW may have a 1 st width folding line FW1 and a 2 nd width folding line FW2. The 1 st width fold line FW1 and the 2 nd width fold line FW2 may be fold lines for folding both the absorbent article 10 and the packaging sheet 100. The 1 st width fold line FW1 and the 2 nd width fold line FW2 may be provided in pairs at intervals in the front-rear direction L.

Next, a folding process in the method of manufacturing the package 1 of absorbent articles will be described with reference to fig. 3. The method of manufacturing the package may include a folding step described below, and a known step may be used for a step other than the folding step. In the following description of the folded configuration, a folded configuration of the package in which both the absorbent article 10 and the package sheet 100 are folded is described, but in a modification, only the absorbent article 10 may be folded. In the unfolded state of the absorbent article 10 and the wrapping sheet 100 (the state shown in fig. 3 (a)), the absorbent article 10 is folded with the 1 st front-rear folding line FL1 as the base point. Fig. 3 (B) shows the 1 st folded state folded with the 1 st front-rear folding line FL1 as a base point. Next, the manufacturing method includes a 1 st step of folding the absorbent article 10 about the 2 nd front-rear folding line FL2 as a base point in the 1 st folded state. In the 1 st folded state, the 2 nd front-rear folding line FL2 is located further inward in the width direction W than the 1 st front-rear folding line FL 1. The 1 st step may be a step of folding the absorbent article 10 with the 2 nd front-rear folding line FL2 as a base point in the 1 st folded state, or a step of folding the absorbent article 10 with the 2 nd front-rear folding line FL2 as a base point in the unfolded state. The manufacturing method includes a step 2 of placing the absorbent article 10 folded in the step 1 on the wrapping sheet 100. Fig. 3 (C) is a 2 nd folded state in which the 2 nd front-rear folding line FL2 is folded as a base point, and shows a state after the 2 nd step. The manufacturing method includes a 3 rd step of folding the package sheet 100 along the 3 rd front-rear folding line FL3 after the 2 rd step. Step 3, the packaging sheet 100 is folded with the 3 rd front-rear folding line FL3 along the 2 nd front-rear folding line FL2 of the absorbent article 10 as the base point. The position in the width direction W of the 3 rd front-rear fold line FL3 substantially coincides with the position in the width direction W of the 2 nd front-rear fold line FL 2. In other words, the 3 rd front-rear folding line FL3 may be formed along the 2 nd front-rear folding line FL 2. Fig. 3 (D) is a state in which one 3 rd front-rear fold line FL3 of the pair of 3 rd front-rear fold lines FL3 is folded as a base point, and fig. 3 (E) is a state in which the other 3 rd front-rear fold line FL3 is folded as a base point. The 3 rd step may also fold the folded package pieces 100 in an overlapping manner with each other and join the overlapped package pieces 100 with each other by means of the package joining portion 101. By joining the package sheets 100 to each other via the package joining portion 101, the folded package sheets can be maintained in a folded state without being unfolded, and the absorbent article 10 can be stored more compactly.

Next, the manufacturing method includes a 4 th step of folding the packaging sheet 100 and the absorbent article 10 with the width folding line FW extending in the width direction W as a base point after the 3 rd step. The 4 th step folds the absorbent article 10 and the package sheet 100 with the 1 st width folding line FW1 as a base point. Fig. 3 (F) shows a 4 th folded state folded with the 1 st width fold line FW1 as a base point. The 4 th step may include a step of folding the absorbent article 10 and the wrapping sheet 100 about the 2 nd width folding line FW2 in the 4 th folded state. Fig. 3 (G) shows a 5 th folded state folded with the 2 nd width fold line FW2 as a base point. In this way, the absorbent article 10 can be individually packaged by the packaging sheet 100, and the package 1 can be compactly formed. In addition, the absorbent article 10 forms a habitual fold formed by the front-rear fold line FL and the width fold line FW when in use.

At least a portion of the front-back folding lines FL of the plurality of front-back folding lines may overlap the absorbent core 31. In the present embodiment, the 2 nd front-rear folding line FL2 and the 3 rd front-rear folding line FL3 are overlapped with the absorbent core 31, and the 1 st front-rear folding line FL1 is not overlapped with the absorbent core 31. By folding the absorbent core 31 with the front-back folding line FL, the length in the width direction W of the absorbent article 10 in the folded state can be easily shortened as compared with a structure in which the front-back folding line FL does not overlap the absorbent core 31. Therefore, even a diaper having a relatively long length in the widthwise direction W of the product can compactly house the absorbent article 10 before use.

The 2 nd front-back folding line FL2 folds the absorbent core 31 in the crotch region S3 so that the skin-surface sides of the absorbent core 31 face each other. In other words, the 2 nd front-rear folding line FL2 overlaps the absorbent core 31 and is a folding line for folding the absorbent core 31 inward. Since the 2 nd front-rear fold line FL2 is a fold line that is folded so that the skin surface sides of the absorbent article 10 face each other, the region outside the 2 nd front-rear fold line FL2 in the width direction W stands up to the wearer side due to habitual bending when in use. Therefore, the side portion in the width direction W of the absorbent core 31 in the crotch region S3 is deformed so as to rise toward the wearer due to the habitual bending. Even when the absorbent core 31 is deformed so as to be separated from the crotch of the wearer by the habitual bending of the width folding line FW, the habitual bending of the 2 nd front-rear folding line FL2 can cover the side of the crotch of the wearer, and side leakage can be suppressed. The 1 st front-rear folding line FL1 may overlap at least the absorbent core 31 in the crotch region S3, or may overlap the absorbent core 31 over the entire region in the front-rear direction L of the absorbent core 31 as in the present embodiment.

The absorbent article such as a diaper is configured to hold excretions such as urine excreted irregularly, and unlike a configuration that holds menstrual blood excreted intermittently such as a sanitary napkin, it is preferable that the crotch region is not placed in close contact with the body. The 2 nd front-rear folding line FL2 may be located at the center 31WC in the width direction W of the absorbent core 31. With this structure, the center 31WC of the absorbent core 31 in the width direction W is separated from the wearer and deformed so as to stand up toward the wearer across the 2 nd front-rear folding line FL2. In this case, the vicinity of the 2 nd front-rear folding line FL2 is separated from the body, and a space for holding body fluid can be ensured. More preferably, a pair of the 2 nd front-rear folding lines FL2 may be provided across the center 31WC in the width direction W of the absorbent core 31. The center 31WC of the absorbent core 31 in the width direction W may coincide with the center of the absorbent article 10 in the width direction W. According to this configuration, the region outside the 2 nd front-rear fold line FL2 is erected with respect to the region sandwiched by the pair of 2 nd front-rear fold lines FL2, and the cross section along the width direction is formed in a cup shape. The region sandwiched by the pair of 2 nd front-rear folding lines FL2 is easily arranged along the crotch region without being closely attached to the body, and a space for holding body fluid can be ensured by the cup shape. In addition, by rising in the region outside the 2 nd front-rear folding line FL2, side leakage can be suppressed.

The 1 st front-rear folding line FL1 may be a folding line which is located on the outer side in the width direction than the absorbent core in the unfolded state and which folds the absorbent article so that the skin surface sides of the absorbent article face each other. The 2 nd front-rear folding line FL2 may fold the absorbent core 31 in the 1 st folded state folded with the 1 st front-rear folding line FL1 as a base point. In a state where the absorbent article 10 is folded with the 1 st front-rear folding line FL1 as the base point and the length in the width direction of the absorbent article 10 is reduced, the absorbent article 10 is folded with the 2 nd front-rear folding line FL2 as the base point, and the length in the width direction of the absorbent article 10 can be further reduced. Therefore, the length in the width direction W of the absorbent article 10 before use can be further shortened. The habitual bending by the 1 st front-rear folding line FL1 becomes a habitual bending in which the skin surface sides of the absorbent article 10 face each other. The two sides of the 1 st front-rear folding line FL1 can be raised to the body side in the width direction W, and the fit during wearing can be improved.

After the absorbent article 10 is folded about the 1 st front-rear folding line FL1 and the 2 nd front-rear folding line FL2 as the base points, the package sheet 100 may be folded about the 3 rd front-rear folding line FL3 as the base point. With this configuration, the temporarily folded absorbent article 10 can be refolded. Therefore, it is possible to fold more compactly. In particular, the present invention can be suitably applied to an absorbent article having a relatively long length in the width direction, such as a disposable diaper.

The width folding line FW can fold the absorbent article 10 in the 2 nd folded state folded with the 2 nd front-rear folding line FL2 as a base point. As described above, the 2 nd folded state may be a state in which the 1 st front-rear fold line FL1 and the 2 nd front-rear fold line FL2 are folded as the base points, or may be a state in which the 2 nd front-rear fold line FL2 is only folded as the base point in a state in which the 1 st front-rear fold line FL1 is not present. By folding the absorbent article 10 with the width folding line as the base point, the length of the absorbent article 10 in the front-rear direction L can be further shortened while the length of the absorbent article 10 in the width direction W is shortened. The absorbent article 10 can be compactly stored before use. Further, since the folding is performed using the 2 nd front-rear folding line FL2 and then using the width folding line FW as a base point, the habitual folding of the 2 nd front-rear folding line FL2 is easily and more strongly formed, and the folded state is easily maintained. Therefore, the effect of suppressing the side leakage by the habitual bending is more easily obtained.

A pair of width folding lines FW may be provided at a spacing in the front-rear direction L. In other words, the width folding line FW may have a 1 st width folding line FW1 and a 2 nd width folding line FW2 separated in the front-rear direction L. The length of the absorbent article 10 in the front-rear direction L can be further shortened, and the absorbent article 10 can be compactly stored before use.

As shown in fig. 2, the package 1 may have a temporary joint 50. The temporary joining section 50 is in contact with the absorbent article 10 and the wrapping sheet 100, respectively, and temporarily joins the absorbent article 10 and the wrapping sheet in a wrapped state before use. By providing the temporary joining section 50, the folded state of the absorbent article 10 can be maintained by the wrapping sheet 100, and the absorbent article 10 can be stored more compactly before use. Further, the temporary joint 50 can fix the relative position of the wrapping sheet 100 and the absorbent article 10, and can be folded stably. The joining strength of the temporary joining portion 50 to the wrapping sheet 100 is higher than the joining strength of the temporary joining portion 50 to the absorbent article 10. The temporary joint 50 has a high joint strength with respect to the wrapping sheet 100 and a low joint strength with respect to the absorbent article 10. Therefore, when the absorbent article 10 is peeled off from the packaging sheet 100 at the time of use, the temporary joint 50 is likely to remain on the packaging sheet 100 side. Since the temporary joining section 50 is not attached to the absorbent article 10 when in use, it is possible to suppress the uncomfortable feeling caused by the temporary joining section 50 being disposed on the non-skin surface side of the absorbent article 10 when in use.

The temporary joining section 50 may temporarily join the non-skin surface of the absorbent article and the inner surface (absorbent article side surface) of the wrapping sheet 100. The temporary joining sections 50 may be provided at least 1, but it is preferable that a plurality be provided separately in the front-rear direction L and a plurality be provided separately in the width direction W. The temporary joining section 50 may be an adhesive such as a hot melt adhesive or a mechanical fastener such as a hook member. For example, it may be configured such that: the hook sheet having the hook member is joined to the inner surface of the package sheet, and the hook member is temporarily joined to the nonwoven fabric constituting the non-skin side sheet 25 of the absorbent article.

The temporary joint 50 may be disposed in an area overlapping the absorbent core 31. The absorbent core 31 is also a relatively stiff member in the absorbent article 10. The temporary joint 50 fixes the region overlapping the absorbent core 31 having relatively high rigidity to the wrapping sheet 100, thereby stabilizing the positions of the absorbent article 10 and the wrapping sheet 100. The temporary joining sections 50 of the present embodiment are provided in 4 numbers, respectively, on both sides with respect to the center 31WC in the width direction W of the absorbent core 31 and on both sides with respect to the center 31LC in the front-rear direction L of the absorbent core 31.

A pair of width folding lines FW may be arranged across the center of the rising portion 63 of the leakage preventing gather 60 in the front-rear direction L. The center in the front-rear direction L of the standing portion 63 of the leakage preventing gather 60 may be the center in the front-rear direction L of the region where the leakage preventing elastic member 61 is arranged in the contracted state, or the center in the front-rear direction L of the interval between the front end edge of the rear fixing portion 64A and the rear end edge of the front fixing portion 64C. At least a part of the temporary joining sections 50 may be disposed outside the width folding lines FW in the front-rear direction L, respectively. More specifically, the 1 st width fold line FW1 is located rearward of the center of the rising portion 63 of the leakage preventing gather 60 in the front-rear direction L. Two of the 4 temporary joining sections 50 are disposed at the rear side of the 1 st width folding line FW 1. The 2 nd width fold line FW2 is located on the front side of the 1 st width fold line FW1 and on the front side of the center of the rising portion 63 of the leakage preventing gather 60 in the front-rear direction L. Two temporary joining sections 50 among the 4 temporary joining sections 50 are arranged on the front side of the 2 nd width folding line FW 2. In the absorbent article 10, the region overlapping the temporary joint 50 is applied with a force that stretches toward the wrapping sheet 100 side in the unfolded state when in use. The temporary joining section 50 is disposed at a position outside in the front-rear direction L than the center in the front-rear direction L of the standing portion 63 of the leakage preventing gather 60, and is therefore stretched toward the package sheet 100 side via the temporary joining section 50. At this time, since the temporary joining section 50 is disposed at a position outside the width folding line FW, the region outside the width folding line FW in the front-rear direction L is more easily developed with the width folding line FW as a base point. Therefore, the rising portion 63 located between the width folding lines FW is easily raised. By improving the rising property of the leakage preventing gathers 60, side leakage can be further suppressed.

At least a part of the temporary joining section 50 may be located outside the standing portion 63 of the leakage preventing gather 60 in the front-rear direction L in the developed state. The temporary joining section 50 may be located on the outer side in the front-rear direction with respect to the entire standing section 63, or may be located on the outer side in the front-rear direction L than the region where the leakage preventing elastic member 61 is arranged in the contracted state. According to this structure, in the absorbent article, the region overlapping the temporary joint 50 is applied with a force that stretches toward the wrapping sheet 100 side in the unfolded state. The region outside the standing portion 63 of the leakage preventing gather 60 in the front-rear direction L is pulled toward the packaging sheet 100 side via the temporary joining portion 50, whereby the standing portion 63 is easily standing. By improving the rising property of the leakage preventing gathers 60, side leakage can be further suppressed.

The present invention has been described in detail using the embodiments described above, but it is obvious to those skilled in the art that the present invention is not limited to the embodiments described in the present specification. The present invention can be implemented as a modification and variation without departing from the spirit and scope of the present invention as defined in the claims. Accordingly, the description of the present invention is intended to be illustrative, and not restrictive.

In the above embodiment, the pair of the 2 nd front-rear folding lines FL2 constituting the core front-rear folding line is provided, but it is not necessary to provide a pair. That is, at least one front-back folding line of the core may be formed. In the above embodiment, after the absorbent article is folded with the 2 nd front-rear folding line FL2 as the base point, the package sheet is folded with the 3 rd front-rear folding line FL3 as the base point. However, in the modification, both the absorbent article and the packaging sheet may be folded at the same time with the 2 nd front-rear folding line as the base point. In the modification, the 1 st front-rear folding line FL1 constituting the article front-rear folding line may be omitted, and the folding may be performed in the unfolded state with the 2 nd front-rear folding line FL2 as the base point. In the modification, the 3 rd front-rear folding line FL3 for folding the package sheet 100 may not be provided, and the absorbent article 10 may be housed in the pouch-shaped package sheet after being folded. In the modification, the width folding line FW may have only one of the 1 st width folding line FW1 and the 2 nd width folding line FW2, or a number of folding lines equal to or greater than the 3 rd width folding line may be provided. In the modification, the front-rear folding line FL may be provided with a number of folding lines equal to or greater than the 4 th front-rear folding line.

The entire contents of japanese patent application nos. 2019-217373, filed on 29 of 11/2019, are incorporated herein by reference.

Industrial applicability

According to the present aspect, an open type absorbent article can be provided that can be compactly stored before use while suppressing occurrence of side leakage due to habitual bending before use.

Claims

1. A package of an absorbent article comprising an open absorbent article and a packaging sheet for individually packaging the absorbent article,

the absorbent article has a front waist region covering the front waist of a wearer, a rear waist region covering the rear waist of the wearer, a crotch region disposed between the front waist region and the rear waist region, an absorbent core disposed at least in the crotch region, and a standing leakage preventing gather disposed closer to the skin side than the absorbent core,

the absorbent article can be folded with a width folding line along the width direction and a front-rear folding line along the front-rear direction as base points,

the front and rear folding lines have core front and rear folding lines which fold the absorbent core in the crotch region in such a manner that the skin-side sides of the absorbent core face each other,

The package of the absorbent article is provided with temporary joining portions which abut against the absorbent article and the packaging sheet, respectively, and temporarily join the absorbent article and the packaging sheet,

the temporary bonding portion has a bonding strength with respect to the packaging sheet higher than that of the temporary bonding portion with respect to the absorbent article,

the leakage preventing gathers have a fixing part fixed on a surface sheet and a standing part capable of standing relative to the surface sheet, the surface sheet is positioned closer to the skin surface side than the absorbent core,

a pair of the width folding lines are provided at intervals in the front-rear direction with the center of the rising portion in the front-rear direction interposed therebetween,

at least a part of the temporary joining portions are disposed outside the width folding lines in the front-rear direction.

2. A package of an absorbent article comprising an open absorbent article and a packaging sheet for individually packaging the absorbent article,

at least a part of the temporary joint portion is located at a position outside the standing portion in the front-rear direction in the unfolded state.

3. The package of absorbent articles according to claim 1 or 2, wherein,

a pair of the core front-rear folding lines are provided across the center in the width direction of the absorbent core.

4. The package of absorbent articles according to claim 1 or 2, wherein,

the front-back folding line has an article front-back folding line which is positioned further to the outer side in the width direction than the absorbent core in the unfolded state and folds the absorbent article so that the skin-surface sides of the absorbent article face each other,

the core front-back folding line folds the absorbent core in a 1 st folded state folded with the article front-back folding line as a base point.

5. The package of absorbent articles according to claim 1 or 2, wherein,

the width folding line folds the absorbent article in a 2 nd folded state folded with the core front-back folding line as a base point.

6. The package of absorbent articles according to claim 1 or 2, wherein,

a pair of the width folding lines are provided at intervals in the front-rear direction.

7. The package of absorbent articles according to claim 1 or 2, wherein,

the temporary joint is disposed in an area overlapping the absorbent core.