absorbent articles

Abstract

To wrap and pack an absorbent article even without having a packing material capable of packing the used absorbent article.SOLUTION: An absorbent article 10 comprises: an absorbent article body 20 including a top sheet 21 positioned on a user's skin side while the absorbent article is worn, a back sheet 22 positioned on a non-skin-side, and an absorber 23 disposed between the top sheet 21 and the back sheet 22; and a disposal sheet 30 supported by the non-skin-side face 22a of the back sheet 22 of the absorbent article body 20 in a state of being folded in an unfoldable manner. The disposal sheet 30 unfolded from the folded state is larger than the absorbent article body 20.SELECTED DRAWING: Figure 3

Description

[Technical Field]

[0001] The present disclosure relates to absorbent articles. [Background technology]

[0002] Sanitary napkins and light incontinence pads are well-known absorbent articles for absorbing bodily fluids. When using these absorbent articles, the user removes the individual packaging sheet that encases an unused absorbent article in a toilet or other stall and attaches the adhesive side of the absorbent article to underwear or the like. After use, the absorbent article is peeled off from the underwear and discarded by wrapping it in toilet paper provided in the stall or the individual packaging sheet of an unused absorbent article that is on hand (the individual packaging sheet that is discarded when the absorbent article is worn).

[0003] Regarding this individual wrapping sheet, various proposals have been made as prior art. For example, Patent Documents 1 to 3 are known as prior applications that are devised to make it easier to dispose of used sanitary products. [Prior art documents] [Patent documents]

[0004] [Patent Document 1] Japanese Patent Application Publication No. 9-10259 [Patent Document 2] Japanese Patent Application Laid-Open No. 2001-87306 [Patent Document 3] Japanese Patent Application Laid-Open No. 2008-080046 Summary of the Invention [Problem to be solved by the invention]

[0005] However, if these materials are not available (if there is no material to wrap used absorbent articles), there is a problem that used absorbent articles cannot be wrapped and disposed of, and there has been a demand in the market for a means to solve these problems.

[0006] A solution was needed, especially in environments where unused absorbent articles are not readily available, such as disaster sites.

[0007] Therefore, an object of the present disclosure is to provide an absorbent article that can be used to wrap and dispose of a used absorbent article even when no packaging material capable of wrapping the used absorbent article is available. [Means for solving the problem]

[0008] In order to solve the above problem, the absorbent article of a first aspect of the present invention comprises an absorbent article main body having a top sheet positioned on the skin side of the wearer when worn, a back sheet positioned on the non-skin side, and an absorbent body arranged between the top sheet and the back sheet, and a disposal sheet supported on the non-skin side of the back sheet of the absorbent article main body in a folded state in which it is folded so as to be able to be unfolded, and the disposal sheet in the unfolded state in which it is unfolded from the folded state is larger than the absorbent article main body.

[0009] A second aspect of the present invention is an absorbent article according to the first aspect, wherein the discard sheet in the folded state is smaller than the absorbent article body, and an exposed area of ​​the non-skin side of the back sheet that is not covered by the discard sheet in the folded state from the non-skin side is arranged to surround the discard sheet in the folded state, and an adhesive layer is provided on at least one of the exposed area of ​​the non-skin side of the back sheet and the non-skin side of the discard sheet in the folded state.

[0010] A third aspect of the present invention is an absorbent article according to the second aspect, wherein the absorbent article main body extends in the longitudinal direction, the adhesive layer is provided in the exposed area of ​​the non-skin side of the back sheet, and the longitudinal length of the areas of the exposed area of ​​the non-skin side of the back sheet that are located on both sides of the longitudinal direction of the discard sheet in the folded state is longer than the lateral length of the areas that are located on both sides of the lateral direction of the discard sheet in the folded state.

[0011] A fourth aspect of the present invention is an absorbent article according to the second or third aspect, wherein the adhesive layer is provided on both the exposed area of ​​the non-skin side of the back sheet and the non-skin side of the discard sheet in the folded state.

[0012] A fifth aspect of the present invention is an absorbent article according to any one of the second to fourth aspects, comprising an individual packaging sheet that is releasably adhered to the adhesive layer and that can individually package the absorbent article body and the disposal sheet.

[0013] A sixth aspect of the present invention is an absorbent article according to any one of the first to fifth aspects, wherein the skin side of the discard sheet in the folded state is fixed to the non-skin side of the back sheet.

[0014] A seventh aspect of the present invention is an absorbent article according to any one of the first to sixth aspects, wherein the surfaces of the disposal sheet in the unfolded state that face each other in the folded state are releasably adhered.

[0015] An eighth aspect of the present invention is a method for manufacturing an absorbent article according to any one of the first to seventh aspects, wherein an anti-opening adhesive layer is provided on at least a portion of the outer peripheral region of the skin-facing surface of the disposal sheet in the unfolded state, the outer peripheral region being outside the absorbent article main body, to prevent the disposal sheet from opening when the absorbent article main body is disposed of.

[0016] A ninth aspect of the present invention is a manufacturing method for an absorbent article according to any one of the first to eighth aspects, comprising: a continuous waste sheet conveying step of conveying a continuous waste sheet, which is a series of a plurality of the unfolded waste sheets, in a conveying direction; a first folding step of folding both ends of the continuous waste sheet in a width direction intersecting the conveying direction inward in the width direction after the continuous waste sheet conveying step; a cutting step of cutting the continuous waste sheet into waste sheets of a desired length after the first folding step; a rotating step of rotating the waste sheet by 90 degrees around an axis extending in a thickness direction of the waste sheet after the cutting step; a second folding step of folding both ends of the waste sheet in the width direction inward in the width direction to bring the waste sheet into the folded state after the rotating step; and an attachment step of attaching the folded waste sheet and the back sheet to each other after the second folding step. [Effects of the Invention]

[0017] According to the present disclosure, even if there is no packaging material available that can wrap used absorbent articles, used absorbent articles can be wrapped and disposed of. [Brief explanation of the drawings]

[0018] [Figure 1] 1 is a plan view of an absorbent article according to one embodiment of the present invention, viewed from the skin side. [Figure 2] 2 is a bottom view of the absorbent article of FIG. 1 as seen from the non-skin side. [Figure 3] FIG. 3 is a cross-sectional view taken along the line III-III in FIG. [Figure 4] FIG. 10 is a bottom view of the absorbent article with the packaging sheet peeled off and the disposal sheet laid out. [Figure 5] FIG. 5 is a plan view of the absorbent article of FIG. 4 as seen from the skin side. [Figure 6] 1A to 1C are explanatory diagrams of a method for manufacturing an absorbent article according to one embodiment of the present invention. [Figure 7]10A and 10B are explanatory views showing a first modified example of a folding mode of the disposal sheet as viewed from the non-skin side, where (a) shows the unfolded state and (b) shows the folded state. [Figure 8] 10A and 10B are explanatory views showing a second modified example of a folding mode of the disposal sheet as viewed from the non-skin side, where (a) shows the unfolded state and (b) shows the folded state. [Figure 9] 10A and 10B are explanatory views showing a third modified example of a folding mode of the disposal sheet as viewed from the non-skin side, where (a) shows the unfolded state and (b) shows the folded state. DETAILED DESCRIPTION OF THE INVENTION

[0019] Hereinafter, the form for carrying out the present invention (hereinafter referred to as the embodiment) will be described in detail with reference to the drawings. However, these are presented for the purpose of illustration only and are not intended to limit the present invention.

[0020] In the description of this specification, the longitudinal direction of the absorbent article 10 refers to the direction extending from the front to the back of the wearer when the absorbent article 10 is worn, and is the direction indicated by arrow X in the drawings. The lateral direction of the absorbent article 10 refers to the direction transverse to or perpendicular to the longitudinal direction, and is the direction indicated by arrow Y in the drawings. The skin side of the absorbent article 10 refers to the direction facing the skin of the wearer when worn (the direction indicated by arrow Z in the drawings) in the thickness direction of the absorbent article 10, and the non-skin side of the absorbent article 10 refers to the direction facing the opposite side from the skin side of the wearer (the underwear 50 side) when the absorbent article 10 is worn (the direction opposite to the direction indicated by arrow Z in the drawings). The skin side and non-skin side of the disposal sheet 30 refer to the directions in each state of the disposal sheet 30 (folded state or unfolded state). Body fluids refer to liquids excreted from the body to the outside, such as urine, blood, and water in loose stools. Furthermore, examples of the absorbent article 10 include sanitary napkins and light incontinence products, but the absorbent article 10 is not limited to these and may be other absorbent articles.

[0021] FIG. 1 is a plan view of an absorbent article 10 according to one embodiment of the present invention, as seen from the skin side. FIG. 2 is a bottom view of the absorbent article 10 of FIG. 1, as seen from the non-skin side. FIG. 3 is a cross-sectional view taken along the arrows III-III in FIG. 1. FIG. 4 is a bottom view of the absorbent article 10 in a state in which the individual wrapping sheet has been peeled off and the disposal sheet 30 has been laid out. FIG. 5 is a plan view of the absorbent article 10 of FIG. 4, as seen from the skin side. In FIG. 2, the individual wrapping sheet 40 is indicated by a two-dot chain line. In addition, in FIG. 3, an undergarment 50 is indicated by a two-dot chain line to make it easier to understand how to use the absorbent article 10. When using the absorbent article 10, the individual wrapping sheet 40 is peeled off from the absorbent article main body 20 side, and the absorbent article main body 20 and the like are attached to the undergarment 50.

[0022] As shown in Figures 1 to 3, an absorbent article 10 according to one embodiment of the present invention is, for example, a sanitary napkin, and comprises an absorbent article main body 20, a disposal sheet 30 supported by the absorbent article main body 20, and an individual packaging sheet 40 capable of individually packaging the absorbent article main body 20 and the disposal sheet 30.

[0023] The absorbent article main body 20 is an article for absorbing bodily fluids, and is attached to underwear 50 when in use. The absorbent article main body 20 has a liquid-permeable top sheet 21 on the skin side, a liquid-impermeable back sheet 22 on the non-skin side, and an absorbent body 23 disposed between the top sheet 21 and the back sheet 22.

[0024] It is preferable that the longitudinal dimension L1 of the absorbent article main body 20 is 100 mm or more and 800 mm or less, and the transverse dimension L2 is 50 mm or more and 500 mm or less. By adjusting the dimensions of the absorbent article main body 20 to fall within the above ranges, it is possible to obtain an absorbent article main body 20 that is suitable for use as a sanitary napkin or a light incontinence product.

[0025] 1 and 3, the absorbent article main body 20 may be provided with a pair of three-dimensional gathers 25 having elastic members for three-dimensional gathers on the top sheet 21 along the longitudinal direction of the absorbent article main body 20, in order to prevent side leakage of bodily fluids excreted by the wearer. For example, the outer ends of the three-dimensional gathers 25 in the shorter direction are fixed to the back sheet 22, the part inside that part in the shorter direction is fixed to the top sheet 21, and the part further inside that part is a free end that is not fixed to the top sheet 21 and functions as a three-dimensional gather. By providing the elastic members for three-dimensional gathers along the longitudinal direction, the three-dimensional gathers have the ability to stand up and can be deformed to fit the body shape of the wearer.

[0026] For example, a thermal bond nonwoven fabric, a spun bond nonwoven fabric, a polyethylene film, or a sheet formed by combining and bonding these sheets can be used as the three-dimensional gathers 25. From the viewpoint of strength and processability, the basis weight of the three-dimensional gathers 25 is set to 13 g / m 2 More than 20g / m 2 It is preferable that the following is true: In this embodiment, the absorbent article main body 20 is provided with three-dimensional gathers 25, but the present invention is not limited to this. For example, the outer edge of the top sheet 21 in the short direction may be fixed to the back sheet 22 without providing three-dimensional gathers 25.

[0027] The top sheet 21 may be formed from a liquid-permeable substrate that allows bodily fluids to move to the absorbent body 23. Examples of the substrate include nonwoven fabrics such as air-through nonwoven fabrics, thermal-bonded nonwoven fabrics, and spun-bonded nonwoven fabrics, and composite nonwoven fabrics in which thermal-bonded and spun-bonded fabrics are laminated. The top sheet 21 may also be embossed or perforated on its surface to improve liquid permeability. As a method for performing such embossing or perforation, any known method can be used without limitation. The top sheet 21 may also contain lotions, antioxidants, anti-inflammatory ingredients, pH adjusters, antibacterial agents, moisturizers, and the like to reduce irritation to the skin.

[0028] The basis weight of the top sheet 21 is set to 15 g / m from the viewpoints of strength, processability, and liquid return. 2 More than 40g / m 2 Preferably, it is 19 g / m or less. 2 More than 35g / m 2 It is more preferable that the top sheet 21 has the following shape: There are no particular restrictions on the shape of the top sheet 21, as long as it has a shape that covers the absorbent body 23 and is necessary to guide bodily fluids to the absorbent body 23 without leakage.

[0029] The backsheet 22 may be formed using a liquid-impermeable substrate that prevents the body fluids held by the absorbent 23 from wetting clothing, and a plastic film such as a liquid-impermeable polyethylene film that is breathable or non-breathable can be used.

[0030] The basis weight of the back sheet 22 is set to 15 g / m from the viewpoint of strength and processability. 2 More than 60g / m 2 Preferably, it is 20 g / m or less. 2 More than 40g / m 2 It is more preferable that the back sheet 22 is breathable. For example, a filler may be blended into the resin film of the base material, or the back sheet 22 may be embossed. An example of the filler is calcium carbonate, and the blending method may be any known method without limitation.

[0031] A first adhesive layer (adhesive layer) 24 is provided on the non-skin side 22a of the back sheet 22. The first adhesive layer 24 is provided to attach the absorbent article main body 20 to the wearer's underwear 50. In this embodiment, the first adhesive layer 24 is provided over substantially the entire area of ​​the non-skin side 22a of the back sheet 22. Known materials can be used as the adhesive that constitutes the first adhesive layer 24.

[0032] The absorbent body 23 contains absorbent fibers as a base material and a superabsorbent polymer (SAP). The maximum width dimension in the longitudinal direction of the absorbent body 23 is preferably 100 mm to 800 mm, and more preferably 150 mm to 500 mm. The maximum width dimension in the lateral direction of the absorbent body 23 is preferably 50 mm to 500 mm, and more preferably 70 mm to 105 mm.

[0033] The absorbent fibers of the absorber 23 are not particularly limited as long as they are those generally used in absorbent articles such as sanitary napkins, disposable diapers, and urine absorption pads, and examples thereof include fluff pulp, cotton, rayon, acetate, tissue, absorbent paper, and hydrophilic nonwoven fabric. Among these, fluff pulp is preferably used from the viewpoint of absorbency. Examples of fluff pulp include wood pulp (for example, bleached coniferous kraft pulp (N-BKP) such as southern pine or Douglas fir), synthetic fiber, resin fiber, and non-wood pulp that have been defibrated into a cotton-like state. When fluff pulp is used as the absorbent fiber base material in the absorber 23, the basis weight of the absorbent fiber is 100 g / m. 2 More than 800g / m 2 Preferably, it is 325 g / m or less. 2 More than 615g / m 2 This allows the fabric to absorb more body fluids without impairing the feel against the skin.

[0034] The superabsorbent polymer of the absorber 23 is not particularly limited as long as it can absorb body fluids and prevent backflow, and can be formed from materials such as sodium polyacrylate, polyaspartate, (starch-acrylic acid) graft copolymer, (acrylic acid-vinyl alcohol) copolymer, (isobutylene-maleic anhydride) copolymer, and saponified products thereof. Among these, sodium polyacrylate is preferred from the viewpoint of absorption per weight.

[0035] Furthermore, in the absorbent body 23, the ratio of the weight of the superabsorbent polymer to the total weight of the absorbent body 23, i.e., weight of superabsorbent polymer / total weight of the absorbent body 23 x 100 (%), is preferably 10% or more, and more preferably 10% or more and 70% or less.

[0036] In the absorbent body 23, the absorbent fibers and SAP may be in the form of a mixture of SAP particles in absorbent fibers, or may be in the form of an SAP sheet in which SAP particles are fixed between absorbent fibers. Furthermore, a carrier sheet (not shown) may be provided below the absorbent body 23 to prevent leakage of the SAP particles and stabilize the shape of the absorbent body 23. The substrate of the carrier sheet may be any hydrophilic material, such as tissue, absorbent paper, or hydrophilic nonwoven fabrics such as air-laid nonwoven fabrics. When multiple carrier sheets are provided, the substrates of the multiple carrier sheets may be the same or different.

[0037] As shown in FIGS. 2 and 3 , the disposal sheet 30 is a sheet that can wrap the absorbent article main body 20 when the used absorbent article main body 20 is disposed of, and is supported by the non-skin side 22a of the back sheet 22 of the absorbent article main body 20 in an unfoldable folded state (hereinafter referred to as the "folded state"). In this embodiment, the disposal sheet 30 in the folded state is supported by being fixed to the non-skin side 22a of the back sheet 22 so as not to slip. For example, the skin side 30a of the folded disposal sheet 30 (the skin side of a partial region 34 of the disposal sheet 30 in an unfolded state (hereinafter referred to as the "unfolded state")) may be a non-release treated surface that has not been subjected to a release treatment, and may be adhered to the first adhesive layer 24 of the non-skin side 22a of the back sheet 22, thereby fixing the folded disposal sheet 30 to the non-skin side 22a of the back sheet 22. The discard sheet 30 in the folded state is smaller than the absorbent article main body 20, and the outer peripheral edge of the discard sheet 30 in the folded state is located more inward than the outer peripheral edge of the back sheet 22. That is, the longitudinal dimension L3 of the discard sheet 30 in the folded state is shorter than the longitudinal dimension L1 of the absorbent article main body 20, and the lateral dimension L4 is shorter than the lateral dimension L2 of the absorbent article main body 20. In this embodiment, the discard sheet 30 in the folded state is located at the center in the lateral direction of the non-skin side 22a of the back sheet 22, and is located approximately in the center in the lateral direction of the non-skin side 22a of the back sheet 22. The unfolded discard sheet 30 and the folding manner of the discard sheet 30 will be described later.

[0038] A second adhesive layer (adhesive layer) 31 is provided on the non-skin side surface 30b (the surface 30b shown with diagonal lines in FIG. 2) of the disposal sheet 30 in the folded state. The second adhesive layer 31 is provided to attach the disposal sheet 30 in the folded state to the wearer's underwear 50. In this embodiment, the second adhesive layer 31 is provided on almost the entire non-skin side surface 30b of the disposal sheet 30 in the folded state. As with the first adhesive layer 24, a known material can be used for the adhesive constituting the second adhesive layer 31. The non-skin side surface 30b of the disposal sheet 30 in the folded state is a partial area of ​​the skin side or non-skin side surface of the disposal sheet 30 in the unfolded state.

[0039] The non-skin side 22a of the backsheet 22 has an area 26 (hereinafter referred to as the "exposed area 26") that is not covered from the non-skin side by the disposal sheet 30 in a folded state. The exposed area 26 of the non-skin side 22a of the backsheet 22 is provided so as to surround the disposal sheet 30 in a folded state. The first adhesive layer 24 is exposed around the periphery of the disposal sheet 30 in a folded state so as to surround the disposal sheet 30 in a folded state. That is, in this embodiment, adhesive layers (the first adhesive layer 24 and the second adhesive layer 31) are provided on both the exposed area 26 of the non-skin side 22a of the backsheet 22 and the non-skin side surface 30b of the disposal sheet 30 in a folded state. The lateral lengths L5 of the areas 26a and 26b of the exposed area 26 of the non-skin side 22a of the backsheet 22, which are located on both sides of the disposal sheet 30 in the lateral direction in the folded state, are set to be approximately the same. Of the exposed region 26 on the non-skin side 22a of the backsheet 22, the longitudinal lengths L6, L7 of regions 26c, 26d located on both sides of the folded disposal sheet 30 in the longitudinal direction are different from each other, but both are longer than the lateral length L5 of regions 26a, 26b located on both sides of the folded disposal sheet 30 in the lateral direction.

[0040] Next, the unfolded disposal sheet 30 will be described. As shown in FIGS. 4 and 5, the disposal sheet 30 can be unfolded from a folded state after the individual wrapping sheet 40 is peeled off. The unfolded disposal sheet 30 is larger than the absorbent article main body 20. The outer peripheral edge of the unfolded disposal sheet 30 is located outside the outer peripheral edge of the absorbent article main body 20. That is, the longitudinal dimension L8 of the unfolded disposal sheet 30 is longer on both longitudinal sides than the longitudinal dimension L1 of the absorbent article main body 20, and the lateral dimension L9 is longer on both lateral sides than the lateral dimension L2 of the absorbent article main body 20. The skin-side surface (the back surface in FIG. 4) of a partial region 34 of the unfolded disposal sheet 30 (the region 34 surrounded by dashed dotted lines 32a, 32b, 33a, and 33b in FIG. 4) is fixed to the non-skin side surface 22a of the backsheet 22 so as not to slip. The disposal sheet 30 can be changed from an unfolded state to a folded state by folding the area (area not attached to the back sheet 22) surrounding the area 34 attached to the back sheet 22 (hereinafter referred to as the "attached area 34") in the longitudinal and lateral directions.

[0041] As shown in Fig. 5, in the unfolded state, an adhesive layer (unfolding prevention adhesive layer) 38 is provided on at least a part of the skin-facing surface of a peripheral region 37 (region shown by diagonal lines in Fig. 5) outside (at least one of the longitudinal and lateral outer sides) of the absorbent article main body 20 of the disposal sheet 30 in the unfolded state, for preventing the disposal sheet 30 from unfolding when the used absorbent article main body 20 is disposed of, as will be described later. This adhesive layer 38 is preferably provided on both opposing surfaces of the disposal sheet 30 when the unfolded disposal sheet 30 is folded at approximately the center in the longitudinal direction so that the skin-facing surfaces face each other. In this embodiment, the adhesive layer 38 is composed of a second adhesive layer 31 on the non-skin-side surface 30b of the disposal sheet 30 in a folded state, and adhesive layers 39 provided in regions 35a, 35b located on both sides of the fixed region 34 in the longitudinal direction (regions 35a, 35b longitudinally outboard of the dash-dotted lines 32a, 32b) in an unfolded state, and is provided over the entire periphery of the skin-side surface of the outer peripheral region 37 of the disposal sheet 30. The adhesive layers 39 provided in the regions located on both sides of the fixed region 34 in the longitudinal direction may have the function of maintaining the folded state when the disposal sheet 30 is folded. In this way, the adhesive layer 38 for preventing the opening of the disposal sheet 30 when the used absorbent article main body 20 is disposed of may originate from the second adhesive layer 31 on the non-skin side surface 30b of the folded disposal sheet 30, or may originate from an adhesive layer (in this embodiment, the adhesive layer 39 used to bond the opposing surfaces when the disposal sheet 30 is folded) provided in a position different from the second adhesive layer 31, or may originate from both of them. Note that when the adhesive layer 38 is provided on a part of the outer peripheral region 37 of the disposal sheet 30 rather than the entire periphery, it is more preferable to provide the adhesive layer on both end regions in the longitudinal direction of the outer peripheral region 37 of the disposal sheet 30, taking into consideration the folding direction when the used absorbent article main body 20 is disposed of.

[0042] Next, an example of how the discard sheet 30 is folded will be described. As shown in FIGS. 4 and 5, in this embodiment, when the discard sheet 30 is changed from the unfolded state to the folded state, first, the regions 35a and 35b located on both sides of the fixed region 34 of the unfolded discard sheet 30 in the longitudinal direction (the regions 35a and 35b located on the longitudinal outer side of the dash-dotted lines 32a and 32b in FIG. 4) are folded toward each other toward the non-skin side (the near side in FIG. 4) (folded along the dash-dotted lines 32a and 32b). Next, the regions located on both sides of the fixed region 34 of the discard sheet 30 in the lateral direction (the regions located on the lateral outer side of the dash-dotted lines 33a and 33b in FIG. 4) are folded toward each other toward the non-skin side (the near side in FIG. 4) (folded along the dash-dotted lines 33a and 33b). This allows the unfolded discard sheet 30 to be folded.

[0043] In the folded state, the opposing surfaces of the disposal sheet 30 may be releasably bonded to each other. For example, as described above, an adhesive layer 39 may be provided on the skin-side surfaces of the regions 35a and 35b (regions 35a and 35b located on both sides of the fixed region 34 of the disposal sheet 30 in the unfolded state in the longitudinal direction) as shown in FIG. 4. Alternatively, a releasable adhesive such as glue or hot melt may be applied to the non-skin-side surfaces (the surfaces on the near side in FIG. 4) of the regions 35a and 35b located on both sides of the fixed region 34 of the disposal sheet 30 in the unfolded state to releasably bond the opposing surfaces in the folded state. Alternatively, the opposing surfaces in the folded state may be releasably bonded to each other using a dot-shaped heat seal or the like. This makes it difficult for the disposal sheet 30 to unfold from the folded state, thereby enabling the disposal sheet 30 to be suitably maintained in the folded state. In addition, by providing adhesive on both opposing surfaces in the folded state, the adhesive is less likely to peel off when the container is unfolded. If this makes unfolding difficult, a separate release paper with a known double-sided release treatment may be sandwiched between the opposing surfaces to make peeling easier.

[0044] The skin-side (rear side in FIG. 4) surfaces of the regions 36a, 36b (the regions 36a, 36b sandwiched between the dash-dotted lines 32a, 32b and positioned outside the dash-dotted lines 33a, 33b in the short direction in FIG. 4, shown by diagonal lines) located on both sides of the fixed region 34 of the disposal sheet 30 in the unfolded state become the non-skin-side surface 30b (the surface 30b shown by diagonal lines in FIG. 2) of the disposal sheet 30 in the folded state. That is, in this embodiment, the second adhesive layer 31 provided on the non-skin-side surface 30b of the disposal sheet 30 in the folded state is provided on the skin-side (near side in FIG. 5) surfaces of the regions 36a, 36b located on both sides of the short direction of the fixed region 34 of the disposal sheet 30 in the unfolded state. This second adhesive layer 31 may be the same adhesive layer as the adhesive layer (anti-opening adhesive layer) 38 provided in the outer peripheral region 37 of the skin-facing surface of the disposal sheet 30 in the unfolded state, or it may be a different (separately provided) adhesive layer.

[0045] The disposal sheet 30 is preferably made of film, paper, nonwoven fabric, or a laminate of these, and more preferably made of film or paper. In addition, the basis weight of the disposal sheet 30 is 15 g / m2 in the case of film or nonwoven fabric from the viewpoint of strength and processability. 2 More than 30g / m 2 For paper, 30 g / m 2 More than 70g / m 2 It is preferable that the thickness is about 1 / 4 of the thickness of the disposal sheet 30. Furthermore, of the surfaces that will be on the inside when folded, the surface opposite to the surface coated with adhesive (for example, the surface opposite to the areas 35a and 35b) is preferably coated with a release agent (treated for release). By applying a release agent, it becomes easier to change from the folded state to the unfolded state. The release agent is preferably a silicone-based release agent or a fluorine-based release agent.

[0046] As shown in FIGS. 1 to 3 , the individual packaging sheet 40 is a sheet capable of individually packaging the absorbent article main body 20 and the folded disposal sheet 30, and is formed larger than the absorbent article main body 20. The individual packaging sheet 40 is releasably adhered to the first adhesive layer 24 and the second adhesive layer 31. That is, the individual packaging sheet 40 is releasably adhered to the back sheet 22 of the absorbent article main body 20 and the folded disposal sheet 30 via the first adhesive layer 24 and the second adhesive layer 31. By folding the individual packaging sheet 40, absorbent article main body 20, and disposal sheet 30 with the individual packaging sheet 40 facing outward so as to enclose the absorbent article main body 20 and the disposal sheet 30, the individual packaging sheet 40 individually packages the absorbent article main body 20 and the disposal sheet 30 (not shown). Note that the ends of the individually packaged individual packaging sheet 40 may be fastened to the opposing surfaces of the individual packaging sheet 40 with tab tape.

[0047] The individual wrapping sheet 40 is preferably a film, paper, nonwoven fabric, or a laminate thereof, and more preferably a film or paper. From the viewpoint of strength and processability, the basis weight of the individual wrapping sheet 40 is 15 g / m in the case of a film or nonwoven fabric. 2 More than 30g / m 2 For paper, 30 g / m 2 More than 70g / m 2 It is preferable that the thickness is about 1 / 4 of the absorbent article main body 20 or less. In addition, it is preferable that a release agent is applied to the skin-facing surface of the individual packaging sheet 40 (the surface that is attached to the adhesive layers (first adhesive layer 24 and second adhesive layer 31) of the absorbent article main body 20 and the disposal sheet 30). By applying the release agent, it becomes easier to peel the individual packaging sheet 40 from the absorbent article main body 20 side, making it easier to replace the absorbent article main body 20. The release agent is preferably a silicone-based release agent or a fluorine-based release agent.

[0048] Next, a method for manufacturing the absorbent article 10 according to one embodiment of the present invention will be described. Fig. 6 is an explanatory diagram of a method for manufacturing the absorbent article 10 according to one embodiment of the present invention. Note that Fig. 6 illustrates only some of the overall manufacturing steps for the absorbent article 10, and does not illustrate the top sheet 21, the pair of three-dimensional gathers 25, or the individual packaging sheet 40.

[0049] When manufacturing the absorbent article 10, the top sheet 21, back sheet 22, pair of three-dimensional gathers 25, disposal sheet 30, individual packaging sheet 40, etc. are each prepared in advance in a continuous state. A continuous state means that the sheets 21, 22, 25, 30, 40 for the multiple absorbent articles 10 are not cut.

[0050] First, in the first step, the top sheet 21, back sheet 22, pair of upright gathers 25, disposal sheet 30, and individual packaging sheet 40, all in a continuous state, are conveyed in a predetermined conveying direction along a predetermined conveying line. The conveying direction of this conveying line is the same as the longitudinal direction of the absorbent article 10. The sheets 21, 22, 25, 30, and 40 are conveyed in a state crossing the vertical direction. The continuous disposal sheet 30 in the first step is a continuous disposal sheet 300, which is made up of a plurality of unfolded disposal sheets 30 in a continuous state. That is, the first step includes a continuous disposal sheet conveying step (S1).

[0051] In the second step, which is performed after the first step, both ends of the continuous discard sheet 300 in the width direction intersecting with the conveying direction are folded inward in the width direction (first folding step (S2)).

[0052] In the third step, which is performed after the second step, the continuous discard sheet 300, with both widthwise ends folded inward in the widthwise direction, is cut into discard sheets 30 of a desired length (cutting step (S3)).

[0053] In the fourth step, which is performed after the third step, the discard sheet 30 cut in the third step is rotated 90 degrees relative to the conveying direction around an axis extending in the thickness direction of the discard sheet 30 (in this embodiment, the vertical direction) (rotation step (S4)). This 90-degree rotation can be performed using a known device. For example, a 90-degree turn device (described in paragraph

[0028] of JP 2002-095696 A) used to rotate an absorber 90 degrees horizontally can be used.

[0054] In a fifth step performed after the fourth step, both widthwise ends of the disposal sheet 30 are folded inward in the widthwise direction to put the disposal sheet 30 in a folded state (second folding step (S5)).

[0055] In a sixth step, which is performed after the fifth step, the discard sheet 30 folded in the fifth step and the back sheet 22 are attached to each other (attaching step (S6)). In this step, the discard sheet 30 in a folded state may be attached to the back sheet 22 in a continuous state, or may be attached to the back sheet 22 in a state cut to a desired length. Alternatively, the discard sheet 30 in a folded state may be attached to the individual packaging sheet 40 in a continuous state or cut to a desired length, and then the back sheet 22 in a continuous state or cut to a desired length may be attached to both the individual packaging sheet 40 and the discard sheet 30 in a folded state.

[0056] In a step performed after the sixth step, the top sheet 21 may be attached to the back sheet 22, which is attached to the individual packaging sheet 40 and the folded disposal sheet 30, directly or indirectly via a pair of three-dimensional gathers 25, with the absorbent body 23 positioned between the top sheet 21 and the back sheet 22.

[0057] According to the manufacturing method of the absorbent article 10 of this embodiment, before cutting the continuous disposal sheet 300 into disposal sheets 30 of a desired length (cutting step (S3)), both widthwise ends of the continuous disposal sheet 300 are folded inward in the widthwise direction (first folding step (S2)). Therefore, unlike when both widthwise ends of individual disposal sheets 30 are folded after being cut to a desired length, both widthwise ends of the disposal sheet 30 can be folded continuously and efficiently in the state of a long, continuous continuous disposal sheet 300.

[0058] Furthermore, the discard sheet 30 cut to the desired length is rotated 90 degrees in the conveying direction around an axis extending in the thickness direction of the discard sheet 30 (in this embodiment, the vertical direction) (rotation step (S4)), so that the folding of the discard sheet 30 in the second folding step (S5) can be performed from both sides in the width direction of the conveying line.

[0059] Next, the use and disposal of the absorbent article 10 according to this embodiment will be described.

[0060] When using the absorbent article 10, the user peels off the individual packaging sheet 40 wrapping the unused absorbent article 10 from the absorbent article main body 20 side in a private room such as a toilet, and uses the absorbent article main body 20 and the folded disposal sheet 30 by attaching them to underwear 50 (see FIG. 3) or the like. At this time, the absorbent article main body 20 or the like can be attached to underwear 50 or the like by the first adhesive layer 24 on the non-skin side 22a of the back sheet 22 and the second adhesive layer 31 on the non-skin side surface 30b of the folded disposal sheet 30.

[0061] On the other hand, when disposing of the absorbent article main body 20 of the used absorbent article 10, the absorbent article main body 20 is peeled off from the underwear 50 together with the folded disposal sheet 30, and the folded disposal sheet 30 is unfolded. The used absorbent article main body 20 is then folded with the body fluid-adhering surface (the skin-facing surface of the top sheet 21) facing inward, and the used absorbent article main body 20 is wrapped in the disposal sheet 30 and discarded. At this time, the adhesive layer 38 on the outer peripheral region 37 of the unfolded disposal sheet 30 can prevent the disposal sheet 30 wrapping the used absorbent article main body 20 from opening.

[0062] In the absorbent article 10 configured as described above, the unfoldable folded disposal sheet 30 is supported on the non-skin side 22a of the back sheet 22 of the absorbent article main body 20, and the unfolded disposal sheet 30 is larger than the absorbent article main body 20. Therefore, the used absorbent article main body 20 can be disposed of by wrapping it in the disposal sheet 30 with the body fluid-adhering surface (the skin-facing surface of the top sheet 21) facing inward.

[0063] Thus, according to this embodiment, even if there is no packaging material available that can wrap the absorbent article main body 20 of a used absorbent article 10, the absorbent article main body 20 of a used absorbent article 10 can be wrapped and disposed of.

[0064] Furthermore, adhesive layers (the first adhesive layer 24 and the second adhesive layer 31) are provided on both the exposed region 26 of the non-skin side 22a of the back sheet 22 and the non-skin side surface 30b of the folded disposal sheet 30. Therefore, when using the absorbent article 10, the absorbent article main body 20 and the folded disposal sheet 30 can be attached to an undergarment 50 or the like. Furthermore, the stability of the absorbent article main body 20 attached to the undergarment 50 can be ensured. In this embodiment, adhesive layers (the first adhesive layer 24 and the second adhesive layer 31) are provided on both the exposed region 26 of the non-skin side 22a of the back sheet 22 and the non-skin side surface 30b of the folded disposal sheet 30, but this is not limited thereto and it is sufficient to provide the adhesive layers on at least one side. It is preferable that the first adhesive layer 24 is provided on the exposed region 26 of the non-skin side 22a of the back sheet 22.

[0065] Furthermore, the discard sheet 30 in the folded state is smaller than the absorbent article main body 20, and the non-skin side 22a of the back sheet 22 has an exposed area 26 that is provided so as to surround the discard sheet 30 in the folded state. The exposed area 26 of the non-skin side 22a of the back sheet 22 is provided with a first adhesive layer 24. Therefore, the exposed area 26 of the non-skin side 22a of the back sheet 22 that surrounds the discard sheet 30 in the folded state can be firmly attached to the underwear 50 by the first adhesive layer 24, so that the discard sheet 30 can be kept in a folded state when the absorbent article main body 20 is in use, and the discard sheet 30 can be prevented from unfolding.

[0066] Furthermore, of the exposed region 26 on the non-skin side 22a of the backsheet 22, the longitudinal lengths L6, L7 of the regions 26c, 26d located on both longitudinal sides of the folded disposal sheet 30 are both longer than the lateral length L5 of the regions 26a, 26b located on both lateral sides of the folded disposal sheet 30. Therefore, wide exposed regions 26 can be secured at the front and rear of the backsheet 22 of the absorbent article main body 20, and the first adhesive layer 24 can be provided, thereby ensuring the stability of the absorbent article main body 20 when worn in the underwear 50.

[0067] Furthermore, the individual packaging sheet 40 is releasably adhered to the back sheet 22 of the absorbent article main body 20 and the first adhesive layer 24 and the second adhesive layer 31 of the disposal sheet 30 in a folded state. Therefore, an unused absorbent article main body 20 can be individually packaged by the individual packaging sheet 40. Furthermore, when replacing a used absorbent article main body 20 with a new, unused absorbent article main body 20, in addition to the disposal sheet 30 of the used absorbent article 10, the individual packaging sheet 40 of the unused absorbent article 10 can also be used as a sheet to wrap the used absorbent article main body 20.

[0068] Furthermore, the skin-side surface 30a of the disposal sheet 30 in the folded state (the skin-side surface 30a of a portion of the region 34) is fixed to the non-skin-side surface 22a of the back sheet 22. Therefore, when the individual packaging sheet 40 is peeled off from the absorbent article main body 20 side, it is possible to prevent the disposal sheet 30 from peeling off from the back sheet 22 of the absorbent article main body 20. Furthermore, when the folded disposal sheet 30 is unfolded, it is possible to prevent the disposal sheet 30 from peeling off from the back sheet 22 of the absorbent article main body 20.

[0069] Furthermore, since the opposing surfaces of the folded disposal sheet 30 are releasably adhered to each other, the disposal sheet 30 can be suitably maintained in a folded state when the absorbent article main body 20 is in use, and when the used absorbent article main body 20 is disposed of, the opposing surfaces of the folded disposal sheet 30 can be peeled off to place it in an unfolded state.

[0070] In addition, an adhesive layer 38 is provided on the skin-facing surface of the outer peripheral region 37 of the disposal sheet 30 in the unfolded state, so that the disposal sheet 30 wrapping the used absorbent article main body 20 can be prevented from opening, and the used absorbent article main body 20 can be disposed of hygienically.

[0071] In this embodiment, an adhesive layer (anti-opening adhesive layer) 38 is provided on the disposal sheet 30 to prevent the disposal sheet 30 wrapping the used absorbent article main body 20 from opening, but this is not limited to this, and the anti-opening adhesive layer does not have to be provided on the disposal sheet 30.

[0072] In this embodiment, the surfaces of the disposal sheet 30 that face each other in the folded state are releasably adhered, but they do not have to be adhered.

[0073] In addition, in this embodiment, the adhesive area 34 of the unfolded disposal sheet 30 is adhered to the non-skin side 22a of the back sheet 22 with an adhesive, but it may also be adhered in various ways other than with an adhesive to prevent slippage.

[0074] In addition, in this embodiment, a partial region 34 of the disposal sheet 30 in the unfolded state is a fixed region 34 that is fixed to the non-skin side 22a of the backsheet 22 so as not to slip, but this is not limited to this, and for example, a partial region 34 of the disposal sheet 30 in the unfolded state may be releasably attached to the non-skin side 22a of the backsheet 22. In other words, the disposal sheet 30 supported on the non-skin side 22a of the backsheet 22 includes a disposal sheet 30 that is releasably adhered to the non-skin side 22a of the backsheet 22, and a disposal sheet 30 that is fixed to the non-skin side 22a of the backsheet 22 so as not to slip.

[0075] In addition, in this embodiment, the longitudinal lengths L6, L7 of the regions 26c, 26d located on both sides of the folded disposal sheet 30 in the longitudinal direction in the exposed region 26 of the non-skin side 22a of the back sheet 22 are longer than the lateral length L5 of the regions 26a, 26b located on both sides of the folded disposal sheet 30 in the lateral direction, but this is not limited to this.

[0076] In addition, in this embodiment, the exposed area 26 of the non-skin side 22a of the back sheet 22 is provided so as to surround the disposal sheet 30 in the folded state, but this is not limited to this, and for example, the exposed area 26 of the non-skin side 22a of the back sheet 22 may be provided only on both sides of the longitudinal direction of the disposal sheet 30 in the folded state.

[0077] In addition, in this embodiment, the regions on both ends of the longitudinal direction of the unfolded discard sheet 30 are folded, and then the regions on both ends of the lateral direction are folded to bring the discard sheet 30 into a folded state, but the folding manner of the discard sheet 30 is not limited to the above.

[0078] FIG. 7 is an explanatory diagram showing a first modified example of the folding manner of the disposal sheet 30 as viewed from the non-skin side, where (a) shows the unfolded state and (b) shows the folded state.

[0079] As shown in Fig. 7, in a first variation of the folding mode of the disposal sheet 30, when the disposal sheet 30 is changed from the unfolded state to the folded state, first, the regions on both sides of the fixed region 34 (the region surrounded by the dash-dotted lines 61a, 61b, 62a, and 62b) of the unfolded disposal sheet 30 in the short direction (regions outside the dash-dotted lines 61a and 61b in the short direction) are folded toward the non-skin side (the near side in Fig. 7(a)) in a direction toward each other (folded along the dash-dotted lines 61a and 61b). Next, the regions on both sides of the fixed region 34 of the disposal sheet 30 in the long direction (regions outside the dash-dotted lines 62a and 62b in the long direction) are folded toward the non-skin side in a direction toward each other (folded along the dash-dotted lines 62a and 62b). In this manner, the unfolded disposal sheet 30 may be folded. In this case, the skin-side surfaces (rear side in FIG. 7(a)) of the regions 63a, 63b (the regions 63a, 63b sandwiched between the dashed dotted lines 61a, 61b and positioned longitudinally outboard of the dashed dotted lines 62a, 62b) located on both sides of the fixed region 34 of the disposal sheet 30 in the unfolded state become the non-skin-side surface 30b (the region shown by diagonal lines in FIG. 7(b)) of the disposal sheet 30 in the folded state. An adhesive layer is provided on at least one of the exposed region 26 of the non-skin-side surface 22a of the backsheet 22 and the non-skin-side surface 30b of the disposal sheet 30 in the folded state. 7(a), a releasable adhesive such as glue or hot melt may be applied to the non-skin side surfaces (the front surface in FIG. 7(a)) of the hatched areas 64a, 64b on the outer side of the short-side direction from the dashed lines 61a, 61b of the disposal sheet 30 in the unfolded state to releasably adhere the opposing surfaces in the folded state, or the opposing surfaces in the folded state may be releasably adhered to each other by dot-shaped heat sealing or the like. In this case, the absorbent article 10 to which the first modified folding mode of the disposal sheet 30 is applied can be formed by again adding a rotation step (S4) after the second folding step (S5) of the manufacturing process shown in FIG.

[0080] FIG. 8 is an explanatory diagram showing a second modified example of the folding manner of the disposal sheet 30 as viewed from the non-skin side, where (a) shows the unfolded state and (b) shows the folded state.

[0081] 8, in the second variation of the folding mode of the disposal sheet 30, when the disposal sheet 30 is changed from the unfolded state to the folded state, first, the region of the unfolded disposal sheet 30 located on one side of the fixed region 34 (the region 34 surrounded by the dash-dotted lines 71, 72a, 72b, and 73a) in the longitudinal direction (the region below the dash-dotted line 71 in FIG. 8(a)) is folded toward the other side of the longitudinal direction (the upper side in FIG. 8(a)) toward the non-skin side (the near side in FIG. 8(a)) (the disposal sheet 30 is folded in half along the dash-dotted line 71). Next, the regions of the disposal sheet 30 located on both sides of the fixed region 34 in the lateral direction (the regions outside the dash-dotted lines 72a and 72b in the lateral direction) are folded toward the non-skin side in a direction approaching each other (folded along the dash-dotted lines 72a and 72b). Next, the region of the disposal sheet 30 located on the other side of the fixed region 34 in the longitudinal direction (the region above the overlapping dashed dotted lines 73a and 73b) is folded toward one side in the longitudinal direction toward the non-skin side (folded along the dashed dotted lines 73a and 73b). In this manner, the unfolded disposal sheet 30 may be folded. In this case, the skin side (the back side in FIG. 8(a)) of the region 74 located on the other side of the fixed region 34 of the disposal sheet 30 in the unfolded state (the region 74 shown by diagonal lines sandwiched between the dashed dotted lines 72a and 72b and located on the other side of the dashed dotted line 73a in the longitudinal direction) becomes the non-skin side surface 30b of the disposal sheet 30 in the folded state (the region shown by diagonal lines in FIG. 8(b)). An adhesive layer is provided on at least one of the exposed region 26 of the non-skin side 22a of the backsheet 22 and the non-skin side surface 30b of the folded disposal sheet 30. In addition, in Fig. 8(a), a releasable adhesive such as glue or hot melt may be applied to the non-skin side surfaces (the surfaces on the near side in Fig. 8(a)) of the diagonally shaded areas 75a, 75b outside the dashed lines 72a, 72b in the short direction of the unfolded disposal sheet 30 to releasably adhere them to the opposing surfaces in the folded state, or the opposing surfaces in the folded state may be releasably adhered to each other by dot-shaped heat sealing or the like.

[0082] FIG. 9 is an explanatory diagram showing a third modified example of the folding manner of the disposal sheet 30 as viewed from the non-skin side, where (a) shows the unfolded state and (b) shows the folded state.

[0083] As shown in Fig. 9, in a third variation of the folding mode of the discard sheet 30, when the discard sheet 30 is folded from the unfolded state, first, the four triangular corners 81a-81d of the unfolded discard sheet 30 are folded inward toward the non-skin side (the near side in Fig. 9(a)) of the discard sheet 30 up to the center line CL in the lateral direction of the discard sheet 30 (folded along the dash-dotted lines 82a-82d). Next, the regions on both sides of the fixed region 34 of the discard sheet 30 (the region 34 surrounded by the dash-dotted lines 82a-82d, 83a, and 83b) in the lateral direction (regions outside the dash-dotted lines 83a and 83b in the lateral direction) are folded toward the non-skin side (folded along the dash-dotted lines 83a and 83b). In this manner, the unfolded discard sheet 30 may be folded. In this case, the skin-side surfaces (rear side in FIG. 9(a)) of both the inner regions 84 in the short direction of the four triangular corners 81a to 81d of the disposal sheet 30 in the unfolded state (the regions 84 shown by diagonal lines inward in the short direction from perpendicular lines 85 extending from the four corners to the dashed-dotted lines 82a to 82d) and the diagonal lines 86 outward in the short direction from the dashed-dotted lines 83a and 83b and inward in the longitudinal direction from the dashed-dotted lines 82a to 82d become the non-skin-side surface 30b (the region shown by diagonal lines in FIG. 9(b)) of the disposal sheet 30 in the folded state. An adhesive layer is provided on at least one of the exposed region 26 of the non-skin-side surface 22a of the backsheet 22 and the non-skin-side surface 30b of the disposal sheet 30 in the folded state. In addition, the surfaces of the disposal sheet 30 that face each other in the folded state may be releasably adhered with a releasable adhesive such as glue or hot melt, or with a dot-shaped heat seal.

[0084] Although the present invention has been described above based on the above embodiment, the present invention is not limited to the content of the above embodiment, and can be modified as appropriate without departing from the scope of the present invention. In other words, all other embodiments, examples, operational techniques, etc. made by those skilled in the art based on this embodiment are naturally included in the scope of the present invention. [Explanation of symbols]

[0085] 10: Absorbent articles 20: Absorbent article body 21: Top sheet 22: Back seat 22a: Non-skin side of back sheet 23: Absorbent 24: 1st adhesive layer (adhesive layer) 26: Exposed area of ​​non-skin side of backsheet 30: Disposal sheet 31: Second adhesive layer (adhesive layer) 37: Outer periphery of the waste sheet 38: Adhesive layer (anti-opening adhesive layer) 40: Individually wrapped sheets 300: Continuous waste sheet

Claims

1. an absorbent article main body having a top sheet positioned on the skin side of a wearer when worn, a back sheet positioned on the non-skin side, and an absorbent body disposed between the top sheet and the back sheet; a disposal sheet that is supported on the non-skin side of the back sheet of the absorbent article main body in a folded state that is unfoldable; and an individual packaging sheet capable of individually packaging the absorbent article main body and the disposal sheet, The discard sheet in the unfolded state is larger than the absorbent article main body, the discard sheet in the folded state is smaller than the absorbent article main body, the skin-side surface of the folded disposal sheet is fixed to the non-skin-side surface of the back sheet; an exposed area of ​​the non-skin side of the back sheet that is not covered from the non-skin side by the discard sheet in the folded state is provided so as to surround the discard sheet in the folded state; an adhesive layer is provided on the exposed area of ​​the non-skin side of the back sheet and / or on the non-skin side of the disposal sheet in the folded state; the individual wrapping sheet is releasably adhered to the adhesive layer, The surfaces of the disposal sheet in the unfolded state that face each other in the folded state are releasably adhered to each other, an anti-opening adhesive layer that prevents the disposal sheet from opening when the absorbent article main body is disposed of is provided in both longitudinal end regions of the outer peripheral region of the skin-side surface of the disposal sheet in the unfolded state, the anti-opening adhesive layer preventing the disposal sheet from opening when the absorbent article main body is disposed of; The unfolding prevention adhesive layer has a function of holding the folded disposal sheet in the folded state. An absorbent article characterized by:

2. The absorbent article main body extends in a longitudinal direction, the adhesive layer is provided on the exposed area of ​​the non-skin side of the backsheet, Of the exposed regions of the non-skin side of the backsheet, the longitudinal lengths of the regions located on both sides of the discard sheet in the longitudinal direction in the folded state are longer than the lateral lengths of the regions located on both sides of the discard sheet in the lateral direction in the folded state.

2. The absorbent article according to claim 1.

3. A method for manufacturing an absorbent article according to claim 1 or claim 2, a continuous waste sheet conveying step of conveying a continuous waste sheet, which is a continuous series of the plurality of unfolded waste sheets, in a conveying direction; a first folding step of folding both ends of the continuous disposal sheet in a width direction intersecting the conveying direction toward the inside in the width direction, after the continuous disposal sheet conveying step; a cutting step of cutting the continuous discard sheet into discard sheets of a desired length after the first folding step; a rotating step of rotating the disposal sheet by 90 degrees around an axis extending in a thickness direction of the disposal sheet after the cutting step; a second folding step of folding both end sides of the disposal sheet inward in the width direction after the rotating step, to bring the disposal sheet into the folded state; and an attaching step of attaching the discard sheet and the back sheet in the folded state to each other after the second folding step. A method for manufacturing an absorbent article.

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