Absorbent article

Abstract

To provide an absorbent article which can be easily fixed to underwear by men and suppresses urine leakage.SOLUTION: A pad type absorbent article 10 for men includes: a liquid permeable top sheet positioned on a skin side in wearing; a liquid impermeable back sheet 12 positioned on a non-skin side in wearing; and an absorber 13 arranged between the top sheet and the back sheet 12. The pad type absorbent article for men includes: a belt-like tape 14 having a one-end side fixing part 19 fixed to a non-skin side surface 10a of one side end part in a longitudinal direction that is located on an upper side of the absorbent article 10 in wearing, provided in a folded state where the tape is folded more internally than an upper end edge 20 of the non-skin side surface 10a of the absorbent article 10, and allowing the other end side to extend to the outside of the upper end edge 20 of the absorbent article 10 in an extended state where the tape is extended from the folded state; and an intermediate adhesive strength tacky part (a tacky part) 15 provided on a non-skin side surface of the other end side of the tape 14 in an extended state.SELECTED DRAWING: Figure 5

Description

[Technical field]

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

[0002] In recent years, the number of working people is increasing due to the need to secure a working population and the aging of society as a whole. As the working population over 60 years old increases, the number of male workers who suffer from underwear stains caused by slight urine leakage after urination and incontinence symptoms due to prostate disease, etc. is increasing. To solve these problems, it is thought that light incontinence pads can be attached to underwear.

[0003] However, unlike women who are accustomed to using sanitary products, men are not accustomed to wearing light incontinence pads, and so they may not be able to fix the light incontinence pads in the correct position. Also, for men who are accustomed to wearing trunks, the trunks are loosely constructed around the body, making it difficult for the light incontinence pads attached to the trunks to fit closely to the private parts (urinary area), resulting in urine leakage onto clothing outside the underwear (such as pants).

[0004] Patent Document 1 discloses a male incontinence pad having a three-dimensional shape. On the upper outer surface of this male incontinence pad, two fixing tapes are provided for fixing the male incontinence pad to underwear. [Prior art documents] [Patent documents]

[0005] [Patent Document 1] JP 2008-136641 A Summary of the Invention [Problem to be solved by the invention]

[0006] The shape and position of the genitals of men change, which causes fluctuations in the location of urination, making it more difficult for men to deal with urinary incontinence using absorbent articles such as light incontinence pads than women. Such anxiety about urinary incontinence can lead to men giving up working or going out for long periods of time. Furthermore, in order to promote the participation of elderly men in society, there is a demand for absorbent articles such as light incontinence pads that are suitable for men who are anxious about urination.

[0007] The male incontinence pad (absorbent article) described in Patent Document 1 does not take into consideration adhesion during wear or post-use disposal.

[0008] In view of the above, an object of the present disclosure is to provide an absorbent article that can be easily fixed to underwear even by men and that can prevent urine leakage. [Means for solving the problem]

[0009] In order to solve the above problems, a first aspect of the present invention is a pad-type absorbent article for men comprising a liquid-permeable top sheet that is positioned on the skin side when worn, a liquid-impermeable back sheet that is positioned on the non-skin side when worn, and an absorbent body that is arranged between the top sheet and the back sheet, and the article has a fixing portion on one end side that is fixed to the non-skin side of one end of the longitudinal direction of the absorbent article that is the upper side when worn, and is provided in a folded state folded inwardly relative to one end edge of the one side of the non-skin side of the absorbent article, and in an unfolded state extended from the folded state and unfolded, the other end side of the strip-shaped tape is capable of extending outwardly relative to the one end edge of the longitudinal direction of the absorbent article, and an adhesive portion provided on the non-skin side of the other end of the tape in the unfolded state.

[0010] A second aspect of the present invention is the absorbent article of the first aspect, wherein a pair of the tapes are provided on both sides in the width direction of the non-skin side of the absorbent article.

[0011] A third aspect of the present invention is an absorbent article of the first aspect or the second aspect, wherein the longitudinal length of the absorbent article is 180 mm or more and 330 mm or less, the width direction length of the absorbent article is 120 mm or more and 220 mm or less, and the longitudinal length of the tape in the unfolded state is 100 mm or more and 200 mm or less.

[0012] A fourth aspect of the present invention is an absorbent article of the first aspect or the second aspect, wherein the fixing portion of the tape is positioned so as to overlap with the absorbent body in the thickness direction, and the longitudinal length of the fixing portion of the tape is 40 mm or more and 60 mm or less.

[0013] A fifth aspect of the present invention is an absorbent article according to the first aspect or the second aspect, wherein the tape is formed from polypropylene resin, the adhesive portion is made of a synthetic rubber-based adhesive, and the adhesive portion of the tape is pressure-attached to Kanakin No. 3 by rolling a roller back and forth once with a load of 2 kg, and the peel strength when peeled off at a tensile speed of 300 mm / min after curing conditions of 23°C, 50% RH for 2 hours or more is 120 gf / 15 mm or more and 220 gf / 15 mm or less.

[0014] A sixth aspect of the present invention is an absorbent article of the first aspect or the second aspect, comprising an anti-slip adhesive portion provided on the non-skin side of the absorbent article, the anti-slip adhesive portion extending upward from the other longitudinal end of the non-skin side of the absorbent article which will be the lower side when worn, and the longitudinal length of the anti-slip adhesive portion is between 40% and 60% of the longitudinal length of the absorbent article taken as 100%. Effect of the Invention

[0015] According to the present disclosure, it is possible to provide an absorbent article that can be easily fixed to underwear even by men and that is capable of preventing urinary leakage. [Brief description of the drawings]

[0016] [Figure 1]1A and 1B are plan views of an absorbent article according to one embodiment of the present invention, in which (a) shows the state when viewed from the skin side, and (b) shows the state when viewed from the non-skin side. [Diagram 2] FIG. 2 is a cross-sectional view taken along line II-II of FIG. [Diagram 3] FIG. 3 is a cross-sectional view taken along line III-III of FIG. [Figure 4] FIG. 4 is an enlarged view of a portion IV in FIG. [Diagram 5] FIG. 2 is a plan view of the absorbent article from the non-skin side with the tape deployed. [Figure 6] 1A and 1B are explanatory diagrams showing how to wear an absorbent article inside underwear, in which (a) shows the state in the middle of wearing it, and (b) shows the state after wearing it has been completed. [Figure 7] FIG. 13 is an explanatory diagram of the tape of the absorbent article in a completely fitted state. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0017] Hereinafter, an absorbent article according to one embodiment of the present invention will be described with reference to the drawings.

[0018] FIG. 1 is a plan view of an absorbent article according to an embodiment of the present invention, where (a) shows a state seen from the skin side and (b) shows a state seen from the non-skin side. FIG. 2 is a cross-sectional view taken along the line II-II in FIG. 1(b). FIG. 3 is a cross-sectional view taken along the line III-III in FIG. 1(b). FIG. 4 is an enlarged view of a portion IV in FIG. 3. FIG. 5 is a plan view of the absorbent article from the non-skin side in a state in which the tape is unfolded. The cross-sectional views in FIG. 2 to FIG. 4 show each member in a schematic manner. Also, in FIG. 3 and FIG. 4, the cover sheet is not shown. Also, each drawing does not specify the size relationship of the components of the absorbent article, and the dimensions of each component can be appropriately selected from a wide range depending on the purpose of the absorbent article, the age of the intended wearer, etc.

[0019] In this specification, wearing an absorbent article means a state in which underwear with an absorbent article is worn, regardless of whether the absorbent article is worn before, during, or after the absorption of bodily fluids (urine). The longitudinal direction means the longitudinal direction of the absorbent article, which is the direction from the wearer's abdomen to the crotch of the wearer when the absorbent article is worn, and is the direction along the arrow X in the figure. The width direction means the short side direction of the absorbent article, which is the direction intersecting (orthogonal to) the longitudinal direction, and is the direction along the arrow Y in the figure. The thickness direction of the absorbent article means the direction in which each component is stacked, and is the direction along the arrow Z in the figure. The "upper side" means the direction that is the wearer's abdomen when the absorbent article is worn, and the "lower side" means the direction that is the wearer's crotch. The "skin side" of each component of the absorbent article means the direction toward the wearer's body when the absorbent article is worn in the thickness direction, and is the direction indicated by the arrow Z in the figure. In addition, the "non-skin side" refers to the direction opposite to the skin side in the thickness direction, and is the direction opposite to the direction indicated by the arrow Z in the figure. In addition, the left-right direction refers to the left-right direction as seen by a wearer facing forward.

[0020] [Absorbent articles] As shown in Figs. 1 to 5, the absorbent article 10 according to this embodiment is a pad-type absorbent article for men that is attached to the inside of an undergarment 1 (see Figs. 6 and 7). Examples of pad-type absorbent articles include light incontinence pads and urine absorption pads. The absorbent article 10 according to this embodiment can be easily attached to not only brief-type undergarments 1 but also trunk-type undergarments 1 and used appropriately.

[0021] The shape of the absorbent article 10 is not particularly limited, but is preferably a cup-shaped shape that encases a man's private parts, with the upper side being longer in the width direction and the lower side being shorter in the width direction. Note that in the drawings, the absorbent article 10 is shown in a flat shape for ease of understanding, but in reality, the absorbent article 10 has a three-dimensional cup shape.

[0022] The longitudinal length (maximum length; the same applies below) L1 of the absorbent article 10 is not particularly limited, but is preferably 180 mm or more and 330 mm or less. The widthwise length W1 of the absorbent article 10 is not particularly limited, but is preferably, for example, 120 mm or more and 220 mm or less. By adjusting the dimensions of the absorbent article 10 to fall within the above ranges, pad products (pad-type absorbent articles) such as urine absorption pads for men in various forms can be easily obtained. Note that the longitudinal length L1 and widthwise length W1 of the absorbent article 10 refer to the lengths in a plan view (see FIG. 1), not the lengths along the three-dimensional shape.

[0023] The absorbent article 10 comprises a liquid-permeable top sheet 11 positioned on the skin side when worn, a liquid-impermeable back sheet 12 positioned on the non-skin side when worn, an absorbent body 13 disposed between the top sheet 11 and the back sheet 12, a strip-shaped tape 14, and an intermediate adhesive strength adhesive section (adhesive section) 15 provided on the tip side of the tape 14. In addition to the above, the absorbent article 10 of this embodiment also comprises a slip-prevention adhesive section 16, three-dimensional gathers 17, and a cover sheet 18. The top sheet 11 is disposed opposite the back sheet 12 with the absorbent body 13 sandwiched therebetween. A part or all of the outer peripheral edge section of the top sheet 11 is bonded to the back sheet 12.

[0024] (Top sheet) The top sheet 11 is a liquid-permeable sheet-like member, and may be formed from a substrate having liquid permeability that allows bodily fluids to move to the absorbent body 13. Examples of the substrate include hydrophilic sheets, composite nonwoven fabrics that are laminates of the same or different hydrophilic sheets, open-ended films such as open-ended polyethylene films, and foamed films such as polyethylene foam and urethane foam. Examples of the hydrophilic sheets include air-through nonwoven fabrics, thermal bond nonwoven fabrics, spunlace nonwoven fabrics, spunbond nonwoven fabrics, and the like, which contain one or more of synthetic fibers made of synthetic resins such as polypropylene and polyethylene, regenerated fibers such as rayon, and natural fibers such as cotton.

[0025] From the viewpoint of improving liquid permeability, the surface of the top sheet 11 may be embossed or perforated according to a known method. From the viewpoint of reducing irritation to the skin, the top sheet 11 may contain one or more of lotions, antioxidants, anti-inflammatory ingredients, pH adjusters, antibacterial agents, moisturizers, etc. The shape of the top sheet 11 is not particularly limited, and may be any shape that covers a part or all of the absorbent body 13 so as to prevent leakage of bodily fluids guided to the absorbent body 13.

[0026] (Back seat) The back sheet 12 may be formed using a liquid-impermeable substrate so that the body fluid held by the absorbent 13 does not leak to the non-skin side, and is formed from a material such as a resin film or a composite sheet in which a resin film and a nonwoven fabric are laminated. The nonwoven fabric used in the composite sheet is not particularly limited in its manufacturing method, and examples thereof include composite nonwoven fabrics in which multiple identical and / or different nonwoven fabrics are laminated, such as spunbond nonwoven fabric, meltblown nonwoven fabric, spunbond nonwoven fabric / meltblown nonwoven fabric, spunbond nonwoven fabric / meltblown nonwoven fabric / spunbond nonwoven fabric, and composite materials thereof. Examples of the resin film include films of polyester, polyvinyl alcohol, polyethylene, polypropylene, etc., and composite films of polyethylene and polypropylene.

[0027] It is preferable that the back sheet 12 has breathability in order to prevent stuffiness during wearing. In order to provide the back sheet 12 with breathability, for example, a filler may be blended into the resin film of the base material, or the back sheet 12 may be embossed. An example of the filler is calcium carbonate, and the blending method may be any known method without limitation. For example, a porous (breathable) resin film can be obtained by kneading a resin and a filler, forming the resulting kneaded product into a film, and removing the filler from the resulting film.

[0028] (Absorbent) Examples of the absorbent body 13 include a fluff absorbent body containing absorbent fibers as a base material and a superabsorbent polymer (hereinafter sometimes referred to as "SAP") supported on the absorbent fibers, and a SAP sheet in which SAP particles are fixed between liquid absorbent sheets.

[0029] The absorbent fiber is not particularly limited as long as it is generally used in absorbent articles such as sanitary napkins, paper diapers, and urine pads, and examples thereof include fluff pulp, cotton, rayon, acetate, tissue, absorbent paper, hydrophilic nonwoven fabric, etc. Examples of fluff pulp include wood pulp (e.g., bleached coniferous kraft pulp (N-BKP) such as southern pine and Douglas fir), synthetic fiber, resin fiber, non-wood pulp, etc. that have been defibrated into a cotton-like state. Examples of the liquid absorbent sheet include sheets composed of one or more of the above absorbent fibers.

[0030] The superabsorbent polymer is not particularly limited as long as it can absorb body fluids and prevent backflow, and examples thereof include polyacrylates, polyaspartates, (starch-acrylic acid) graft copolymers, (acrylic acid-vinyl alcohol) copolymers, (isobutylene-maleic anhydride) copolymers, and saponification products thereof. Among these, from the viewpoint of absorption amount per weight, polyacrylates are preferred, polyacrylic acid alkali metal salts are more preferred, and polyacrylate sodium is even more preferred. The superabsorbent polymers can be used alone or in combination of two or more.

[0031] In the absorbent body 13, the absorbent fibers and SAP may be in the form of a mixture of SAP particles in the absorbent fibers, or SAP particles may be fixed between the absorbent fibers.

[0032] The shape of the absorbent body 13 is not particularly limited, but is preferably a cup shape similar to the shape of the absorbent article 10. The absorbent body 13 may be used in the form of two or more layers stacked together.

[0033] (Cover sheet) The absorbent article 10 may have a cover sheet 18 that wraps the absorbent body 13 in order to prevent leakage of SAP particles from the absorbent body 13 and to stabilize the shape of the absorbent body 13. The base material of the cover sheet 18 may be any material that has hydrophilic properties, and examples of such base materials include hydrophilic nonwoven fabrics such as tissue, absorbent paper, airlaid nonwoven fabric, and spunbond nonwoven fabric. Among these, spunbond nonwoven fabric is preferable. In addition, when a plurality of cover sheets 18 are provided, the base materials of the plurality of cover sheets 18 may be the same or different. Although the cover sheet 18 is provided in this embodiment, the cover sheet 18 may not be provided.

[0034] (3D gathers) The three-dimensional gathers 17 are fixed to the skin side of the top sheet 11 along the longitudinal direction near both ends in the width direction of the absorbent article 10 in order to prevent, for example, lateral leakage of bodily fluids excreted by the wearer. The three-dimensional gathers 17 include a water-repellent and / or waterproof sheet member 17a and an elastic stretchable member 17b. Although the three-dimensional gathers 17 are provided in this embodiment, they may not be provided.

[0035] The sheet member 17a is a water-repellent and / or waterproof sheet, and is made of, for example, a nonwoven fabric. As the nonwoven fabric for the sheet member 17a, any water-repellent and / or waterproof (liquid-impermeable) nonwoven fabric made of hydrophobic fibers can be used without any particular limitation, and examples thereof include spunbond nonwoven fabric, meltblown nonwoven fabric, and composite nonwoven fabric (SMS nonwoven fabric) which is a spunbond nonwoven fabric / meltblown nonwoven fabric / spunbond nonwoven fabric laminate. The outer ends (fixed ends) of the sheet member 17a in the width direction are fixed near both ends in the width direction of the absorbent article 10, and the inner ends in the width direction are free ends having a standing property.

[0036] The elastic stretchable member 17b is disposed in the longitudinal direction near the free end (the other end) of the sheet member 17a, imparting upstanding ability to the free end and enabling the free end of the sheet member 17a and its neighboring area to be deformed to fit the wearer's body shape. As the elastic stretchable member 17b, for example, a thread-, string- or band-shaped member made of natural rubber, synthetic rubber, polyurethane, or the like can be appropriately used.

[0037] (Adhesive to prevent slippage) The slip-prevention adhesive portion 16 is a portion for attaching the absorbent article 10 to the skin side of the underwear 1 (see Figs. 6 and 7), and is provided on the non-skin side 10a of the absorbent article 10. The slip-prevention adhesive portion 16 extends upward from a lower end (the other side in the longitudinal direction) of the non-skin side 10a of the absorbent article 10. The non-skin side 10a of the absorbent article 10 refers to the non-skin side of the portion of the absorbent article 10 that functions as a pad (the absorbent main body), and in this embodiment, it is the non-skin side of the backsheet 12.

[0038] The adhesive forming the slip-stop adhesive portion 16 is not particularly limited, and examples thereof include hot melt adhesives such as polyacrylic acid ester, vinyl acetate-ethylene copolymer, vinyl acetate-acrylic copolymer, polymethyl methacrylate, polystyrene, styrene-acrylic copolymer, polyester resin, epoxy resin, styrene-butadiene-styrene block copolymer (SBS), styrene block copolymer (SBC), styrene-styrene-isoprene block copolymer (SIS), and styrene-ethylene-butylene-styrene block copolymer (SEBS). These may be used alone or in combination. Among these, synthetic rubber adhesives (SBS, SIS, SEBS, etc.) are preferred. The above adhesives are applied to the non-skin side surface 10a of the absorbent article 10 to form an adhesive layer that functions as the slip-stop adhesive portion 16. A removable sheet (release paper, etc.) may be attached to the slip-stop adhesive portion 16 of the absorbent article 10 before use to protect the slip-stop adhesive portion 16.

[0039] The slip-stop adhesive portion 16 of this embodiment is disposed in the center of the width direction of the non-skin side surface 10a of the absorbent article 10, and extends from the end of the lower side (the other side in the longitudinal direction) toward the upper side. The longitudinal length L2 of the slip-stop adhesive portion 16 is preferably 40% or more and 60% or less of the longitudinal length L1 of the absorbent article 10, which is taken as 100%. If the longitudinal length L2 of the slip-stop adhesive portion 16 is shorter than 40% of the length L1 of the absorbent article 10, there is a possibility that sufficient adhesive force cannot be obtained to ensure the slip-stop function with respect to the underwear 1. On the other hand, if the longitudinal length L2 of the slip-stop adhesive portion 16 is longer than 60% of the length L1 of the absorbent article 10, when a larger-sized underwear 1 (such as trunks) is worn as an outerwear, the front side of the absorbent article 10 may come into close contact with the underwear 1, which may hinder the absorbent article 10 from coming into close contact with the private parts where urination takes place.

[0040] (tape) The strip-shaped tape 14 is a long tape extending in the longitudinal direction, and is provided on the non-skin side surface 10a on the upper side (one side in the longitudinal direction) of the absorbent article 10 in a folded state (state shown in Figs. 1 to 4) as described below. One end (fixing portion 19) of the tape 14 in the longitudinal direction is fixed to the non-skin side surface 10a at the end of the upper side of the absorbent article 10. In other words, the tape 14 has a fixing portion 19 on one end side that is fixed to the non-skin side surface 10a at the end of one side in the longitudinal direction that is the upper side of the absorbent article 10 when worn. The tape 14 in the folded state is folded inward from the upper end edge (one end edge on one side) 20 of the non-skin side surface 10a of the absorbent article 10. The tape 14 can be pulled from the folded state to an unfolded state (state shown in Fig. 5) in which the free end side (the other end side) is stretched linearly upward.

[0041] At least one tape 14 may be provided on the non-skin side 10a at the upper end of the absorbent article 10, but as in this embodiment, it is preferable to provide a pair of tapes 14 on both the left and right sides (both sides in the width direction) of the non-skin side 10a at the upper end of the absorbent article 10. By providing a pair of tapes 14 on both the left and right sides of the non-skin side 10a at the upper end of the absorbent article 10, the absorbent article 10 can be worn stably.

[0042] As shown in Figure 5, the tape 14 has one end (fixing portion 19) on one longitudinal side fixed to the non-skin side 10a of the absorbent article 10, and when unfolded, the free end (the other end) can extend outside (above) the upper edge 20 of the absorbent article 10.

[0043] The length L3 in the longitudinal direction of the tape 14 in the unfolded state is preferably 100 mm or more and 200 mm or less. If the length L3 in the longitudinal direction of the tape 14 is shorter than 100 mm, there is a possibility that a sufficient length (a length that allows the tape 14 to be pulled upward from the waist opening 1a of the undergarment 1 described below) cannot be ensured in the unfolded state. On the other hand, if the length L3 in the longitudinal direction of the tape 14 is longer than 200 mm, there is a possibility that the tape 14 will be bulky in the folded state or will be too long in the unfolded state, reducing the workability when fixing the intermediate adhesive strength adhesive portion 15 (described later) on the tip side to the undergarment 1.

[0044] Fixed portion 19 of tape 14 (the portion indicated by diagonal lines in FIG. 5) is preferably disposed at a position overlapping absorbent body 13 in the thickness direction. Fixed portion 19 of tape 14 in this embodiment is disposed at a position overlapping the upper end portion of absorbent body 13 in the thickness direction. Tapes 14 in this embodiment are provided symmetrically on the left and right sides of absorbent article 10 and are spaced apart from each other in the width direction. Fixed portion 19 of tape 14 may also be disposed at a position not overlapping the upper end portion of absorbent body 13 in the thickness direction.

[0045] The length L4 in the longitudinal direction of the fixing portion 19 of the tape 14 is preferably 40 mm or more and 60 mm or less. If the length L4 in the longitudinal direction of the fixing portion 19 of the tape 14 is shorter than 40 mm, there is a possibility that the fixing portion 19 of the tape 14 will not be able to support the weight of the absorbent article 10 during use, which will be described later. On the other hand, if the length L4 in the longitudinal direction of the fixing portion 19 of the tape 14 is longer than 60 mm, the portion overlapping with the absorbent body 13 will become wider, resulting in increased rigidity, which may result in a reduced fit.

[0046] As shown in Figs. 1 to 4, the tape 14 is provided in a folded state on the non-skin side 10a of the absorbent article 10. When the tape 14 is folded, for example, it can be folded back on one side in the longitudinal direction, and then on the other side in the longitudinal direction, and this process can be repeated to form a laminated folded state. The folded tape 14 is located inside the outer edge of the absorbent article 10 in a plan view. The fixed portion 19 of the folded tape 14 is firmly fixed to the non-skin side 10a of the absorbent article 10 (the back sheet 12 in this embodiment) by a synthetic rubber-based adhesive or the like (part indicated by a broken line 21 in Fig. 4). In addition, the layers of the tape 14 folded into layers are peelably bonded to each other by weak adhesive portions 22 provided on the surface of the tape 14. The weak adhesive portions 22 have a relatively weak adhesive force that allows the layers of the tape 14 to be temporarily fixed to each other. The non-skin side of the tip end (free end side in the unfolded state) of the tape 14 is provided with an intermediate adhesive strength adhesive portion (adhesive portion) 15 (shown by a broken line 15 in FIG. 4) intended for fixing to the underwear 1, and in the folded state, the intermediate adhesive strength adhesive portion 15 on the tip end side of the tape 14 is peelably adhered to the other layer of the tape 14 facing it. That is, the tape 14 has an adhesive portion (intermediate adhesive strength adhesive portion 15) provided on the non-skin side of the other end side (free end side) of the tape 14 in the unfolded state. The "intermediate adhesive strength adhesive portion" means an adhesive layer portion intended for fixing to clothing (underwear 1), which has an adhesive strength weaker than that of the fixing portion 19 of the tape 14 to the back sheet 12 side and stronger than that of the weak adhesive portion 22 that peelably adheres each layer of the tape 14 folded in layers to each other.

[0047] The main body of tape 14 is preferably formed from polypropylene resin, and intermediate bond strength adhesive portion 15 of tape 14 is preferably composed of a synthetic rubber (SBS, SIS, SEBS, etc.) adhesive (synthetic rubber adhesive).

[0048] The intermediate adhesive strength adhesive portion 15 of tape 14 is placed on Kanakin No. 3 and a roller is rolled back and forth from above with a load of 2 kg to pressurize and attach the intermediate adhesive strength adhesive portion 15 of tape 14 to Kanakin No. 3, and after leaving to stand under curing conditions of 23°C, 50% RH for 2 hours or more, the peel strength when the intermediate adhesive strength adhesive portion 15 of tape 14 is peeled from Kanakin No. 3 at a pulling speed of 300 mm / min is preferably 120 gf / 15 mm or more and 220 gf / 15 mm or less. If the peel strength when peeling the intermediate adhesive strength adhesive portion 15 of tape 14 from Kanakin No. 3 is lower than 120 gf / 15 mm, there is a possibility that the adhesive force required to hold the main body (pad) of absorbent article 10, which has increased in weight after urination, cannot be sufficiently secured. On the other hand, if the peel strength when peeling the intermediate adhesion strength adhesive portion 15 of the tape 14 from the Kanakin No. 3 is made higher than 220 gf / 15 mm, the adhesive strength may be too strong for elderly people to easily peel off the intermediate adhesion strength adhesive portion 15 of the tape 14 from the underwear 1 after use.

[0049] The peel strength when peeling the intermediate adhesive strength adhesive portion 15 of the tape 14 from Kanakin No. 3 can be measured, for example, using a Tensilon universal testing machine (e.g., A&D Co., Ltd.'s benchtop material testing machine STB-1225S) and analysis software (e.g., A&D Co., Ltd.'s general-purpose testing machine data processing system TACT). When measuring, first, a 15 mm wide sample of the tape 14 is used, the intermediate adhesive strength adhesive portion 15 of the sample is placed on Kanakin No. 3, and a roller is moved back and forth from above with a load of 2 kg to pressurize the intermediate adhesive strength adhesive portion 15 of the sample onto Kanakin No. 3, and the sample is left to stand for more than 2 hours under curing conditions of 23°C and 50% RH. Next, the distance between the chucks of the Tensilon universal testing machine is set to 100 mm, and the sample and Kanakin No. 3 after standing are set between the chucks. When the above sample and Kanakin No. 3 are set between the chucks, they are set so that the above sample, Tape 14, and Kanakin No. 3, are pulled in the direction in which they peel off. Then, the above sample, Tape 14, and Kanakin No. 3, are pulled at a pulling speed of 300 mm / min, and in the peel strength chart drawn by the above analysis software, a range where the peel strength is stable and flat is selected, and the average value within that range is measured as the peel strength.

[0050] (How to wear) Next, a description will be given of an example of a method for wearing the absorbent article 10. Note that the method for wearing the absorbent article 10 is not limited to the following.

[0051] Fig. 6 is an explanatory diagram of the absorbent article when worn inside underwear, (a) shows the state in the middle of wearing, and (b) shows the state after wearing is completed. Fig. 7 is an explanatory diagram of the tape of the absorbent article after wearing is completed. Fig. 7 is a cross-sectional view of the absorbent article after wearing is completed as seen from the left side of the wearer, and A shows the wearer's skin.

[0052] As shown in Figs. 6 and 7, the absorbent article 10 according to the present disclosure is placed inside the underwear 1 (trunks in Figs. 6 and 7) when used. When wearing the absorbent article 10, first, as shown in Fig. 6(a), the slip prevention adhesive portion 16 of the absorbent article 10 is adhered to the skin side of the crotch portion of the underwear 1 when worn or taken off. Next, with the underwear 1 worn, the tape 14 is unfolded from the folded state to the unfolded state, and the free end side of the tape 14 is pulled upward from the waist opening 1a of the underwear 1. Finally, as shown in Figs. 6(b) and 7, the free end side of the tape 14 is folded back to the front, and the intermediate adhesive strength adhesive portion 15 is attached to the non-skin side of the upper part of the underwear 1.

[0053] In the absorbent article 10 configured as described above, a strip-shaped tape 14 is provided on the non-skin side 10a of the absorbent article 10. In an unfolded state, the free end side (the other end side) of the strip-shaped tape 14 can extend outward beyond the upper edge 20 of the absorbent article 10. The non-skin side of the free end side of the tape 14 in the unfolded state is provided with an intermediate adhesive strength adhesive portion 15. Therefore, as described above, while wearing the underwear 1, the free end side of the tape 14 of the absorbent article 10 can be pulled upward from the waist opening 1a of the underwear 1, and the intermediate adhesive strength adhesive portion 15 can be attached to the upper part of the underwear 1, so that even men can easily fix the absorbent article 10 to the underwear 1.

[0054] In addition, with the underwear 1 worn and the waist opening 1a in close contact with the body, the intermediate adhesive strength adhesive portion 15 on the free end side of the tape 14 can be attached to the upper part of the underwear 1. When the absorbent article is fixed inside the underwear 1 with the waist opening 1a spread, there is a possibility that the absorbent article may slip out of the underwear 1 when the waist opening 1a is closed toward the body after fixing. However, with the absorbent article 10 according to the present disclosure, the absorbent article 10 can be fixed to the underwear 1 with the waist opening 1a in close contact with the body, so that slippage of the absorbent article 10 relative to the underwear 1 when worn can be suppressed. Therefore, urine leakage caused by slippage of the absorbent article 10 can be suppressed.

[0055] Furthermore, when attached to the underwear 1, the absorbent article 10 is supported in a suspended state from the underwear 1 via the tape 14, so the absorbent article 10 can easily follow the change in position of the man's private parts. Therefore, even if the change in position of the man's private parts causes a change in the position of the urination, the absorbent article 10 can follow the change in position of the man's private parts, thereby preventing urine leakage.

[0056] Thus, according to this embodiment, it is possible to provide an absorbent article 10 that can be easily fixed to the underwear 1 even by men and that is capable of preventing urine leakage.

[0057] In addition, since the intermediate adhesive strength adhesive portion 15 on the free end side of the tape 14 is attached to the upper part of the underwear 1, the tape 14 can be hidden by wearing clothing such as trousers, a shirt, etc. In this way, the tape 14 of the absorbent article 10 can be hidden from the eyes of others, so that it is possible to prevent others from realizing through the tape 14 that the wearer is wearing the absorbent article 10, and thus to avoid damaging the dignity of the wearer.

[0058] Furthermore, when replacing the absorbent article 10, the used absorbent article 10 can be wrapped and secured with tape 14, allowing the used absorbent article 10 to be disposed of in a compact and hygienic manner.

[0059] Furthermore, by providing a pair of tapes 14 on both sides in the width direction of the non-skin side 10a of the absorbent article 10, the absorbent article 10 can be stably supported in a well-balanced manner from the left and right sides from the upper part of the underwear 1. This makes it possible to more effectively prevent urine leakage.

[0060] Furthermore, by arranging the fixing portion 19 of the tape 14 at a position where it overlaps with the absorbent body 13 in the thickness direction, the absorbent body 13, which becomes heavy during absorption, can be effectively supported from above via the tape 14.

[0061] Furthermore, by providing an anti-slip adhesive portion 16 extending upward from the lower end of the non-skin side 10a of the absorbent article 10, the lower side of the absorbent article 10 can be fixed to the crotch portion of the underwear 1. That is, the lower side of the absorbent article 10 is supported by the crotch portion of the underwear 1, and the upper side of the absorbent article 10 is supported by the upper part of the underwear 1 via the tape 14, so that the absorbent article 10 as a whole is supported by the underwear 1 in a hammock-like manner. Therefore, the absorbent article 10 can be made to adhere closely to the man's private parts while also following positional changes (particularly positional changes in the left-right direction) of the man's private parts while walking, etc., and thus urine leakage can be effectively suppressed.

[0062] In this embodiment, the absorbent article 10 is attached to the trunks-type underwear 1, but the present invention is not limited to this, and the absorbent article 10 may be attached to the briefs-type underwear 1.

[0063] Although the present invention has been described based on the above embodiment, the present invention is not limited to the contents 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, and operational techniques made by those skilled in the art based on this embodiment are naturally included in the scope of the present invention. [Explanation of symbols]

[0064] 1:Underwear 10: Absorbent articles 11: Top sheet 12: Back seat 13: Absorbent 14: Tape 15: Medium adhesive strength adhesive part (adhesive part) 16: Anti-slip adhesive part

Claims

1. A pad-type absorbent article for men, comprising a liquid-permeable top sheet positioned against the skin when worn, a liquid-impermeable back sheet positioned against the skin when worn, and an absorbent body disposed between the top sheet and the back sheet, a belt-shaped tape having a fixing portion on one end side that is fixed to a non-skin side of one end of the absorbent article in a longitudinal direction that is the upper side when the absorbent article is worn, the belt-shaped tape being provided in a folded state in which it is folded inward from one end edge of the one side of the non-skin side of the absorbent article, and the other end side being capable of extending outward from the one end edge of the absorbent article in the longitudinal direction when it is extended and unfolded from the folded state; an adhesive portion provided on the non-skin side of the other end of the tape in the unfolded state; An absorbent article characterized by:

2. The tape is provided in pairs on both sides in the width direction of the non-skin side of the absorbent article.

2. The absorbent article according to claim 1.

3. The length of the absorbent article in the longitudinal direction is 180 mm or more and 330 mm or less, The length of the absorbent article in the width direction is 120 mm or more and 220 mm or less, The length of the tape in the expanded state in the longitudinal direction is 100 mm or more and 200 mm or less.

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

4. The fixing portion of the tape is disposed at a position overlapping the absorbent body in a thickness direction, The length of the fixed portion of the tape in the longitudinal direction is 40 mm or more and 60 mm or less.

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

5. The tape is made of polypropylene resin, The adhesive portion is made of a synthetic rubber adhesive, The adhesive portion of the tape is applied to Kanakin No. 3 by pressing it back and forth with a roller at a load of 2 kg, and after curing under conditions of 23°C, 50% RH for 2 hours or more, the tape is peeled off at a tensile speed of 300 mm / min. The peel strength is 120 gf / 15 mm or more and 220 gf / 15 mm or less.

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

6. The absorbent article has an anti-slip adhesive portion provided on a non-skin side thereof, The slip prevention adhesive portion extends upward from an end portion of the other longitudinal side of the non-skin side of the absorbent article, the other end portion being a lower side when the absorbent article is worn; The length of the anti-slip adhesive portion in the longitudinal direction is 40% or more and 60% or less when the length of the absorbent article in the longitudinal direction is 100%.

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

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