Absorbent article for male
A two-layer absorbent body structure in male absorbent articles addresses leakage and discomfort issues, ensuring comfort and discretion by positioning the lower absorbent body closer to the crotch with specific dimensions and capacity, enhancing absorbency and fit.
Patent Information
- Application Number
- JP2024052786
- Authority / Receiving Office
- JP · JP
- Patent Type
- Applications
- Current Assignee / Owner
- Filing Date
- 2024-03-28
- Publication Date
- 2025-10-09
AI Technical Summary
Existing male absorbent articles face issues with leakage during urination, discomfort due to embossed portions contacting the genital area, and visibility when worn, which compromises comfort and aesthetic appeal.
A male absorbent article with a two-layer absorbent body structure, where the lower absorbent body is positioned closer to the crotch, having dimensions that are 20-50% of the upper body's longitudinal length and 50-100% of its width, with a thickness and absorption capacity 1-200% of the upper body, ensuring a comfortable and discreet fit.
The design provides a comfortable, inconspicuous, and highly absorbent male absorbent article that minimizes leakage and maintains aesthetic appeal.
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Figure 2025151387000001_ABST
Abstract
Description
[Technical Field]
[0001] FIELD OF THE DISCLOSURE The present disclosure relates to male absorbent articles. [Background technology]
[0002] Patent Document 1 discloses a male incontinence pad. This male incontinence pad is composed of a liquid-impermeable backsheet, a liquid-permeable topsheet that allows urine and the like to pass through quickly, an absorbent body sandwiched between these two sheets, and an envelope sheet that covers at least the skin-side and non-skin-side surfaces of the absorbent body. The lower half of the male incontinence pad is provided with multiple flat-shaped blocking embossments that protrude downward.
[0003] Patent Document 2 discloses a male absorbent article. This male absorbent article is composed of a liquid-impermeable backsheet, a liquid-permeable topsheet that allows urine and other liquids to pass through quickly, an absorbent body sandwiched between these two sheets, and an envelope sheet that covers at least the skin-side and non-skin-side surfaces of the absorbent body. The absorbent body has a circular or elliptical outer shape, and on the skin-contacting surface, a penis-accommodating space is defined by a bottom surface portion that is recessed in the thickness direction around the entire circumference at a position biased toward the periphery from the center of the absorbent body, and an inclined surface portion that slopes from the bottom surface portion toward the skin-contacting surface toward the periphery of the absorbent body. The inclined surface portion on the side opposite the biased side of the bottom surface portion is provided with one or more embossed grooves that extend from or near the bottom surface portion toward the periphery of the absorbent body. [Prior art documents] [Patent documents]
[0004] [Patent Document 1] Japanese Patent Application Publication No. 2018-143431 [Patent Document 2] Japanese Patent Application Publication No. 2019-058236 Summary of the Invention [Problem to be solved by the invention]
[0005] Meanwhile, absorbent articles for men, such as light incontinence liners and incontinence pads, have been developed with high absorption capacity (150 cc or more), and relatively high leakage resistance and absorption performance are required. On the other hand, since the wearers are mainly middle-aged people who are able to move independently, they are required to have a comfortable fit that does not interfere with movement and is not noticeable when worn.
[0006] The male incontinence pad described in Patent Document 1 may cause leakage during urination beyond the blocking function. Also, the embossed portion may come into contact with the genital area, which may cause discomfort when worn.
[0007] Furthermore, the male absorbent article described in Patent Document 2 has a space in the absorbent body to accommodate the penis, which means that it may be larger than typical male absorbent articles, and this may be noticeable when wearing an outer layer, making it difficult to ensure aesthetic appeal. Furthermore, while the embossed absorbent body material diffuses absorbed bodily fluids, this does not take into consideration the retention of excrement or the flexibility of the absorbent body.
[0008] Therefore, an object of the present disclosure is to provide an absorbent article for men that is comfortable to wear, is not noticeable, and has excellent absorbency. [Means for solving the problem]
[0009] In order to solve the above problems, a first aspect of the present invention is a male absorbent article comprising a liquid-permeable top sheet facing the skin, a liquid-impermeable back sheet facing the non-skin side, and an absorbent body arranged between the top sheet and the back sheet, wherein the absorbent body has a two-layer structure consisting of an upper absorbent body facing the skin and a lower absorbent body facing the non-skin side, the maximum longitudinal length of the lower absorbent body is 20% to 50% of the maximum longitudinal length of the upper absorbent body, the maximum widthwise length of the lower absorbent body is 50% to 100% of the maximum widthwise length of the upper absorbent body, and the lower absorbent body is arranged closer to the crotch than the longitudinal center of the male absorbent article.
[0010] A second aspect of the present invention is the men's absorbent article of the first aspect, wherein the thickness of the lower absorbent body is 1 mm or more and is 100% to 200% of the thickness of the upper absorbent body.
[0011] The third aspect of the present invention is a male absorbent article according to the first or second aspect, wherein the total absorption capacity of the lower absorbent body is 100% or more and 200% or less of the total absorption capacity of the upper absorbent body. [Effects of the Invention]
[0012] According to the present disclosure, it is possible to provide a men's absorbent article that is comfortable to wear, is not conspicuous, and has excellent absorbency. [Brief explanation of the drawings]
[0013] [Figure 1] 1 is a plan view of a men's absorbent article according to an embodiment of the present invention, viewed from the skin side. [Figure 2] FIG. 2 is a cross-sectional view taken along the line II-II in FIG. DETAILED DESCRIPTION OF THE INVENTION
[0014] Hereinafter, a description will be given of a men's absorbent article according to one embodiment of the present invention with reference to the drawings.
[0015] In this specification, "wearing a men's absorbent article" refers to the state in which the men's absorbent article is worn, regardless of whether the article is worn before, during, or after the absorption of bodily fluids (urine). Furthermore, the "longitudinal direction" refers to the lengthwise direction of the men's absorbent article, the direction from the wearer's abdomen to the crotch (inseam) of the wearer when the men's absorbent article is worn, and is the direction indicated by arrow X in the figures. The direction indicated by arrow X in the figures indicates the abdomen, and the opposite direction indicates the crotch. Furthermore, the "width direction" refers to the short-side direction of the men's absorbent article, the direction intersecting (orthogonal to) the longitudinal direction, and is the direction indicated by arrow Y in the figures. Furthermore, the "thickness direction" of a men's absorbent article refers to the direction in which each component is layered, and is the direction indicated by arrow Z in the figures. Furthermore, the "skin side" of each component of a men's absorbent article refers to the thickness direction toward the wearer's body when the men's absorbent article is worn, and is the direction indicated by arrow Z in the figures. 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 arrow Z in the figure. The left-right direction refers to the left-right direction as seen from the wearer facing forward.
[0016] Fig. 1 is a plan view of a men's absorbent article according to one embodiment of the present invention, viewed from the skin side. Fig. 2 is a cross-sectional view taken along the line II-II in Fig. 1. The cross-sectional view in Fig. 2 shows each component in outline. Furthermore, each drawing does not prescribe the dimensional relationship between the components of the men's absorbent article, and the dimensions of each component can be selected appropriately from a wide range depending on the intended use of the men's absorbent article, etc.
[0017] [Men's absorbent products] As shown in Figures 1 and 2, the men's absorbent article 10 according to this embodiment is a pad-type absorbent article for men. Examples of pad-type absorbent articles include light incontinence pads and urine absorption pads. The men's absorbent article 10 may be used by attaching it to the inside of underwear, for example.
[0018] (shape) The shape of men's 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, although the present embodiment describes a men's absorbent article 10 that is cup-shaped, the present invention is not limited to this. Also, in the drawings, for ease of understanding, men's absorbent article 10 is illustrated in a flat form, but in reality, men's absorbent article 10 has a three-dimensional cup-shaped shape that bulges forward.
[0019] The men's absorbent article 10 comprises a liquid-permeable top sheet 11 that is positioned against the skin when worn, a liquid-impermeable back sheet 12 that is positioned against the skin when worn, and an absorbent body 13 that is placed between the top sheet 11 and the back sheet 12. The top sheet 11 is positioned facing the skin side of the back sheet 12, with the absorbent body 13 sandwiched between the top sheet 11 and the back sheet 12. Part or all of the outer peripheral edge of the top sheet 11 is bonded to the back sheet 12. In addition to the above, the men's absorbent article 10 may also comprise three-dimensional gathers, a carrier sheet, or a transfer sheet, which will be described later.
[0020] (Top sheet) The top sheet 11 is a liquid-permeable sheet-like member, and may be formed from a substrate that has 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 types of hydrophilic sheets, apertured films such as apertured polyethylene films, and foamed films such as polyethylene foam and urethane foam. Examples of hydrophilic sheets include air-through nonwoven fabrics, thermal-bonded nonwoven fabrics, spunlace nonwoven fabrics, and spunbonded nonwoven fabrics that contain one or more types of synthetic fibers made from synthetic resins such as polypropylene and polyethylene, recycled fibers such as rayon, and natural fibers such as cotton.
[0021] To improve liquid permeability, the surface of the top sheet 11 may be embossed or perforated by a known method. To reduce 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 it may have a shape that covers part or all of the absorbent body 13 so as to prevent leakage of bodily fluids guided to the absorbent body 13.
[0022] (back seat) The backsheet 12 may be formed using a liquid-impermeable substrate to prevent leakage of bodily fluids held in the absorber 13 to the non-skin side, and may be formed from a material such as a resin film or a composite sheet formed by laminating a resin film and a nonwoven fabric. The nonwoven fabric used in the composite sheet may be produced by any method, and examples thereof include composite nonwoven fabrics formed by laminating multiple identical and / or different nonwoven fabrics, such as spunbond nonwoven fabric, meltblown nonwoven fabric, spunbond nonwoven fabric / meltblown nonwoven fabric, and spunbond nonwoven fabric / meltblown nonwoven fabric / spunbond nonwoven fabric, as well as composite materials thereof. Examples of resin films include films of polyester, polyvinyl alcohol, polyethylene, polypropylene, etc., and composite films of polyethylene and polypropylene.
[0023] The back sheet 12 is preferably breathable to prevent stuffiness during wear. To provide breathability to the back sheet 12, for example, a filler may be blended into the base resin film or the back sheet 12 may be embossed. An example of the filler is calcium carbonate, and the blending method can 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.
[0024] The non-skin side of the backsheet 12 (the non-skin side of the men's absorbent article 10) may be provided with an anti-slip adhesive portion that allows the men's absorbent article 10 to be attached to underwear.
[0025] The adhesive used to form the slip-preventing adhesive portion is not particularly limited, but examples 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 a blend of several types. Among these, synthetic rubber-based adhesives (e.g., SBS, SIS, SEBS) are preferred. Applying the above-mentioned adhesives to the non-skin side of the men's absorbent article 10 forms an adhesive layer that functions as the slip-preventing adhesive portion. A removable sheet (e.g., release paper) may be attached to the slip-preventing adhesive portion of the men's absorbent article 10 before use to protect the slip-preventing adhesive portion.
[0026] (absorber) The absorbent body 13 has a two-layer structure consisting of an upper absorbent body 13a on the skin side and a lower absorbent body 13b on the non-skin side. For ease of understanding, in Fig. 1, the outer edge of the lower absorbent body 13b is shown inside the outer edge of the upper absorbent body 13a, but this is not limiting.
[0027] Examples of the absorbent body 13 (upper layer absorbent body 13a and lower layer absorbent body 13b) 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 an SAP sheet in which SAP particles are fixed between liquid-absorbent sheets.
[0028] The absorbent fibers are not particularly limited as long as they are 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, hydrophilic nonwoven fabric, etc. Examples of fluff pulp include wood pulp (e.g., bleached coniferous kraft pulp (N-BKP) such as southern pine or Douglas fir), synthetic fiber, resin fiber, non-wood pulp, etc. that has been defibrated into a cotton-like state. Examples of liquid absorbent sheets include sheets composed of one or more of the above absorbent fibers.
[0029] 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 saponified products thereof. Among these, from the viewpoint of absorption per weight, polyacrylates are preferred, alkali metal polyacrylates are more preferred, and sodium polyacrylate is even more preferred. The superabsorbent polymers can be used alone or in combination of two or more.
[0030] In the absorbent body 13, the absorbent fibers and SAP may be in the form of a mixture of absorbent fibers and SAP particles, or may be in the form of SAP particles fixed between absorbent fibers.
[0031] (Upper absorber) The upper-layer absorbent body 13a is preferably a fluff absorbent body in which SAP is supported on fluff pulp. The shape of the upper-layer absorbent body 13a is not particularly limited, but is preferably a cup shape similar to the shape of the men's absorbent article 10. (Upper absorbent body dimensions)
[0032] The maximum longitudinal length La of the upper absorbent body 13a is not particularly limited, but is preferably 200 mm or more and 250 mm or less. The maximum widthwise length Wa of the upper absorbent body 13a is not particularly limited, but is preferably 100 mm or more and 150 mm or less. By adjusting the dimensions of the upper absorbent body 13a within the above ranges, various shapes of men's absorbent articles 10 can be easily obtained. The above dimensions (maximum lengths La, Wa) of the upper absorbent body 13a refer to the lengths in a plan view (see FIG. 1), not the lengths along the three-dimensional shape.
[0033] (Lower absorber) The maximum longitudinal length Lb of the lower-layer absorbent body 13b is preferably 20% to 50% of the maximum longitudinal length La of the upper-layer absorbent body 13a. If the maximum longitudinal length Lb of the lower-layer absorbent body 13b is less than 20% of the maximum longitudinal length La of the upper-layer absorbent body 13a, there is a risk that the lower-layer absorbent body 13b may not be able to absorb a sufficient amount of urine. On the other hand, if the maximum longitudinal length Lb of the lower-layer absorbent body 13b is greater than 50% of the maximum longitudinal length La of the upper-layer absorbent body 13a, the overall thickness of the men's absorbent article 10 may increase, which may reduce comfort when worn and may reduce aesthetic appeal (hereinafter sometimes simply referred to as "aesthetic appeal") when worn with an outer layer.
[0034] (Dimensions of lower absorbent body) The maximum widthwise length Wb of the lower-layer absorbent body 13b is 50% to 100% of the maximum widthwise length Wa of the upper-layer absorbent body 13a. If the maximum widthwise length Wb of the lower-layer absorbent body 13b is less than 50% of the maximum widthwise length Wa of the upper-layer absorbent body 13a, there is a risk that the absorbent body may not be able to absorb a sufficient amount of urine. On the other hand, in order to improve absorbency and make the wearability as comfortable as possible, the maximum widthwise length Wb of the lower-layer absorbent body 13b needs to be less than (100% or less than) the maximum widthwise length Wa of the upper-layer absorbent body 13a. However, if the maximum widthwise length Wb of the lower-layer absorbent body 13b is greater than 100% of the maximum widthwise length Wa of the upper-layer absorbent body 13a, the lower-layer absorbent body 13b will be larger than the upper-layer absorbent body 13a, and there is a risk that the absorbent body may not be able to fully exhibit its absorption performance. The above dimensions (maximum lengths Lb, Wb) of the lower absorbent body 13b do not refer to the length along the three-dimensional shape, but rather to the length in a plan view (see FIG. 1).
[0035] (Position of lower absorber) Lower-layer absorbent body 13b is positioned closer to the crotch than longitudinal center CL (the position indicated by dashed-dotted line CL in FIG. 1) of male absorbent article 10. If lower-layer absorbent body 13b is positioned closer to the abdominal side than longitudinal center CL of male absorbent article 10, when lower-layer absorbent body 13b swells during urination, the thickness of absorbent body 13 increases at the part that comes into contact with the penis, which may result in a worsening wearing comfort.
[0036] (Thickness of lower absorbent layer) The thickness Tb of the lower absorbent body 13b is 1 mm or more and 100% to 200% of the thickness Ta of the upper absorbent body 13a. If the thickness Tb of the lower absorbent body 13b is smaller than the thickness Ta (100%) of the upper absorbent body 13a, sufficient absorption performance may not be ensured. On the other hand, if the thickness Tb of the lower absorbent body 13b is larger than 200% of the thickness Ta of the upper absorbent body 13a, this may result in a decrease in comfort when worn and a decrease in aesthetic appeal.
[0037] (Total absorption capacity of the lower absorbent layer) The total absorption capacity of the lower absorbent body 13b is preferably 100% to 200% of the total absorption capacity of the upper absorbent body 13a. If the total absorption capacity of the lower absorbent body 13b is smaller than the total absorption capacity (100%) of the upper absorbent body 13a, sufficient water absorption performance may not be exhibited when a large amount of urination occurs, which may result in leakage. On the other hand, if the total absorption capacity of the lower absorbent body 13b is greater than 200% of the total absorption capacity of the upper absorbent body 13a, swelling of the lower absorbent body 13b may cause the absorbent body 13 to become too thick, which may result in a decrease in comfort when worn.
[0038] (Total absorption measurement) When measuring the total absorption capacity of the upper-layer absorbent body 13a and the lower-layer absorbent body 13b, first, each absorbent body 13a, 13b is weighed and its weight is measured in advance. Next, each absorbent body 13a, 13b is immersed in saline (0.9% NaCl aqueous solution) for 5 minutes so that it is completely immersed. Next, each absorbent body 13a, 13b is removed from the saline, placed on a wire mesh with the skin side facing downward, and drained for 30 seconds. After draining, each absorbent body 13a, 13b is weighed, and the weight difference before and after immersion is calculated (weight of each absorbent body 13a, 13b after draining - weight measured before immersion). This calculated value is the total absorption capacity (mL) of each absorbent body 13a, 13b.
[0039] (Carrier sheet) The men's absorbent article 10 may have a carrier sheet that encases the absorbent body 13 to prevent leakage of SAP particles from the absorbent body 13 and to stabilize the shape of the absorbent body 13. The substrate of the carrier sheet may be any hydrophilic material, such as tissue, absorbent paper, airlaid nonwoven fabric, or spunbond nonwoven fabric. Of these, spunbond nonwoven fabric is preferred. Furthermore, when multiple carrier sheets are provided, the substrates of the multiple carrier sheets may be the same or different.
[0040] (Transfer sheet) In the men's absorbent article 10, a transfer sheet may be provided between the top sheet 11 and the absorbent body 13 in order to improve the diffusion of bodily fluids that have passed through the top sheet 11 into the absorbent body 13. The transfer sheet is not particularly limited as long as it is a liquid-permeable substrate, and examples include nonwoven fabrics such as air-through nonwoven fabrics, thermal-bonded nonwoven fabrics, and spun-bonded nonwoven fabrics, composite nonwoven fabrics such as laminates of the same or different nonwoven fabrics such as thermal-bonded nonwoven fabrics / spun-bonded nonwoven fabrics, foamed films made of urethane foam, polyethylene foam, etc., and composite sheets that are laminates of two or more of these.
[0041] (3D gathers) In order to prevent side leakage of bodily fluids excreted by the wearer, the men's absorbent article 10 may have three-dimensional gathers on both sides in the width direction of the top sheet 11 on the skin-facing side of the men's absorbent article 10. The three-dimensional gathers include a water-repellent and / or waterproof gathered sheet and an elastic stretchable member.
[0042] The gathered sheet is a water-repellent and / or waterproof sheet, and is made of, for example, a nonwoven fabric. The nonwoven fabric for the gathered sheet can be any water-repellent and / or waterproof (liquid-impermeable) nonwoven fabric made of hydrophobic fibers, and examples thereof include spunbonded nonwoven fabric, meltblown nonwoven fabric, and composite nonwoven fabric (SMS nonwoven fabric) that is a spunbonded nonwoven fabric / meltblown nonwoven fabric / spunbonded nonwoven fabric laminate. The outer widthwise ends (fixed ends) of the gathered sheet are fixed near both widthwise ends of the men's absorbent article 10, and the inner widthwise end is a free end that can stand up.
[0043] The elastic stretchable member is disposed along the longitudinal direction near the free end (other end) of the gathered sheet, imparting standing ability to the free end and enabling the free end of the gathered sheet and its neighboring area to deform to fit the wearer's body shape. The elastic stretchable member may be, for example, a thread-, string- or strip-shaped member made of natural rubber, synthetic rubber, polyurethane or the like.
[0044] In the men's absorbent article 10 configured as described above, the absorbent body 13 has a two-layer structure consisting of an upper absorbent body 13a on the skin side and a lower absorbent body 13b on the non-skin side, with the lower absorbent body 13b being positioned closer to the crotch than the longitudinal center CL of the men's absorbent article 10. The maximum longitudinal length Lb of the lower absorbent body 13b is 20% to 50% of the maximum longitudinal length La of the upper absorbent body 13a, and the maximum widthwise length Wb of the lower absorbent body 13b is 50% to 100% of the maximum widthwise length Wa of the upper absorbent body 13a.
[0045] Therefore, according to this embodiment, it is possible to provide a men's absorbent article 10 that is comfortable to wear, is not conspicuous, and has excellent absorbency.
[0046] 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. [Example]
[0047] The present embodiment will be described in more detail below with reference to examples and comparative examples, but the present invention is not limited to the following examples.
[0048] (Examples 1 to 7 and Comparative Examples 1 to 7) Men's absorbent articles of Examples 1 to 7 and Comparative Examples 1 to 7 were produced under the conditions shown in Table 1. The men's absorbent articles of Examples 1 to 7 and Comparative Examples 1 to 7 were provided with a transfer sheet that enhances diffusion into the absorbent core, and a carrier sheet that wraps the absorbent core. The men's absorbent articles of Examples 1 to 7 and Comparative Examples 1 to 7 had the same configuration except for the configuration of the lower absorbent core. Each men's absorbent article was then evaluated in the following three ways: evaluation of "comfort during use (before absorption)", evaluation of "comfort during use (after absorption)", and evaluation of "leakage".
[0049] (Comfort during use (before absorption)) The evaluation of "comfort during use (before absorption)" was a sensory evaluation by 20 male monitors, who wore each men's absorbent article while exercising and sitting and standing up, and rated the comfort on a three-point scale of 0 (uncomfortable), 1 (slightly bothersome), and 2 (comfortable). The total score for each men's absorbent article was then evaluated according to the following criteria. ◎: Total score is 30 points or more ○: Total score is between 20 and 30 points △: Total score is between 10 and 20 points ×: Total points are less than 10 points
[0050] (Comfort during use (after absorption)) The evaluation of "comfort during use (after absorption)" was a sensory evaluation by 20 male monitors. They wore each men's absorbent article that had been soaked in saline (0.9% NaCl aqueous solution) and performed exercise and sitting and standing movements, and rated the comfort on a three-point scale: 0 (uncomfortable), 1 (slightly bothersome), and 2 (comfortable). For each men's absorbent article, the upper and lower absorbent cores were each allowed to absorb the saline solution in the respective total absorption amounts. The total score for each men's absorbent article was then evaluated according to the following criteria. ◎: Total score is 30 points or more ○: Total score is between 20 and 30 points △: Total score is between 10 and 20 points ×: Total points are less than 10 points
[0051] (leak) The "leakage" evaluation was performed by pouring saline into each male absorbent article worn by a dummy and measuring the time it took for the saline to leak from the male absorbent article. Specifically, to measure the time it took for the saline to leak, the men's absorbent article was first attached to the skin side of boxer-type underwear so that the men's absorbent article was positioned at the urination area, and the underwear was then worn by a dummy simulating an adult male. Next, saline (0.9% NaCl aqueous solution) was injected into the men's absorbent article from a virtual urethral opening located in the crotch area of the dummy at a constant rate (15 mL / sec). The time it took for saline to leak from the men's absorbent article to be visually confirmed was measured, with a maximum of 10 seconds. The time it took for the saline to leak from the men's absorbent article was then evaluated according to the following criteria. ○: No leakage for more than 5 seconds. △: Leaked in less than 5 seconds, but did not reach the dummy's feet. ×: Leaked in less than 5 seconds and ran down the dummy's legs.
[0052] The results are shown in Table 1. In Table 1, "total length" refers to the "maximum length in the longitudinal direction," and "total width" refers to the "maximum length in the width direction." Furthermore, "total absorption amount" is a value measured based on the "measurement of total absorption amount" described above. Furthermore, "comfort" refers to "comfort during use (before absorption)," "comfort when absorbing the total absorption amount of the upper and lower layers in a 0.9% aqueous solution of NaCl" refers to "comfort during use (after absorption)," and "leakage evaluation" refers to the evaluation of "leakage."
[0053] [Table 1]
[0054] As described above, Table 1 confirms that the present disclosure can provide a men's absorbent article that is comfortable to wear, is discreet, and has excellent absorbency. [Explanation of symbols]
[0055] 10: Men's absorbent articles 11: Top sheet 12: Back seat 13: Absorbent 13a: Upper absorber 13b: Lower absorber
Claims
1. A male absorbent article comprising a liquid-permeable top sheet facing the skin, a liquid-impermeable back sheet facing the non-skin, and an absorbent body disposed between the top sheet and the back sheet, The absorbent body has a two-layer structure consisting of an upper absorbent body on the skin side and a lower absorbent body on the non-skin side, the maximum length in the longitudinal direction of the lower absorbent body is 20% or more and 50% or less of the maximum length in the longitudinal direction of the upper absorbent body, the maximum widthwise length of the lower absorbent body is 50% or more and 100% or less of the maximum widthwise length of the upper absorbent body, The lower absorbent body is disposed closer to the crotch than the longitudinal center of the men's absorbent article. An absorbent article for men.
2. The thickness of the lower absorbent body is 1 mm or more, and is 100% or more and 200% or less of the thickness of the upper absorbent body.
2. The male absorbent article according to claim 1.
3. The total absorption capacity of the lower absorbent body is 100% or more and 200% or less of the total absorption capacity of the upper absorbent body.
3. The absorbent article for men according to claim 1 or 2.
Citation Information
Patent Citations
Men's absorbent article
JP2018143431A
Absorbent article for men
JP2019058236A