Holder pants

Abstract

To provide holder pants capable of suppressing urine leakage.SOLUTION: The holder pants include a front body 11 located on a front side of a wearer, a back body 12 located on a back side of the wearer, a crotch part 13 connecting the front body 11 and the back body 12, a waist opening 14 having a predetermined width from upper end edges of the front body 11 and the back body 12 and provided in a circumferential direction, and right and left leg openings 15 having a predetermined width from right and left end edges of the crotch part 13 and provided in the circumferential direction. The waist opening 14 has a third tensile stress larger than the first tensile stress and the second tensile stress in the circumferential direction, and the left and right leg openings 15 have a fourth tensile stress larger than the first tensile stress and the second tensile stress in the circumferential direction.SELECTED DRAWING: Figure 2

Description

[Technical Field]

[0001] The present disclosure relates to holder pants. [Background technology]

[0002] Conventionally, holder pants have been used to hold absorbent pads, such as urine absorption pads and sanitary napkins, between the legs of a wearer. After the absorbent pad has absorbed bodily fluids, the wearer simply replaces the absorbent pad with a new one, and the holder pants themselves can be washed as needed and reused, resulting in cost benefits and a reduced burden on the environment.

[0003] For example, Patent Document 1 discloses sanitary shorts as holder pants for sanitary napkins, which consist of a front body, a back body, and a crotch cloth portion located between the two, with both the front and back body having a front waistband and a back waistband at the upper waist area. Support shorts are sewn and fixed to the back waistband of these sanitary shorts. The support shorts consist of a back body seam, a front fastening portion, and a straddling portion located between the two. The narrow belt area of ​​the straddling portion of the support shorts has a narrow belt opening extending from the area contacting the perineum to the area contacting the urethral opening, ensuring stable support of the napkin and preventing menstrual blood leakage. The front fastening portion of the support shorts consists of two joining bands to adjust the pressure of the napkin. [Prior art documents] [Patent documents]

[0004] [Patent Document 1] Japanese Patent Publication No. 2022-000201 Summary of the Invention [Problem to be solved by the invention]

[0005] When conventional holder pants are worn with pants pads or urine absorption pads (hereinafter simply referred to as "urine absorption pads"), they exert strong pressure and fit too tightly to the body, leaving no room in the crotch area to receive urine, making them prone to urine leakage.

[0006] The sanitary shorts described in Patent Document 1 are designed for menstrual blood and are not suitable for urine absorption pads, and are insufficiently effective against urination.

[0007] Therefore, an object of the present disclosure is to provide holder pants that can prevent urine leakage. [Means for solving the problem]

[0008] In order to solve the above problem, a first aspect of the present invention is holder pants used to hold absorbent pads, comprising a front body that is located on the wearer's stomach side when worn, a back body that is located on the back side, a crotch section that is located under the crotch and connects the front body and the back body, a waist opening that is arranged circumferentially and has a predetermined width from the upper edge of the front body and the back body, and left and right leg openings that are arranged circumferentially along the left and right leg openings and have predetermined widths from the left and right edges of the crotch section, wherein the front body and the back body are formed of a fabric having a first elongation stress, the crotch section is formed of a fabric having a second elongation stress and has an opening that is positioned in the center of the width direction and extends in the front-to-back direction, the waist opening has a third elongation stress in the circumferential direction that is greater than the first elongation stress and the second elongation stress, and the left and right leg openings have a fourth elongation stress in the circumferential direction that is greater than the first elongation stress and the second elongation stress.

[0009] A second aspect of the present invention is the holder pants of the first aspect, wherein the opening is formed in a trapezoidal shape with a wide front side and a narrow rear side.

[0010] A third aspect of the present invention is the holder pants according to the first or second aspect, wherein the second elongation stress is 0.02 N / mm or more and 0.15 N / mm or less.

[0011] A fourth aspect of the present invention is the holder pants of the third aspect, wherein the first elongation stress is 0.02 N / mm or more and 0.30 N / mm or less, the third elongation stress is 0.35 N / mm or more and 0.55 N / mm or less, and the fourth elongation stress is 0.35 N / mm or more and 0.60 N / mm or less. [Effects of the Invention]

[0012] According to the present disclosure, holder pants capable of suppressing urine leakage can be provided. [Brief explanation of the drawings]

[0013] [Figure 1] 1 is an external view of holder pants according to an embodiment of the present invention when worn. FIG. [Figure 2] FIG. 2 is an external view showing the holder pants as viewed from the front. [Figure 3] FIG. 2 is a plan view of the crotch portion of the holder pants as viewed from the waist opening side. [Figure 4] 1 is a graph showing the amount of water poured in before leakage from the absorbent pad when holder pants of Examples and Comparative Examples are used. DETAILED DESCRIPTION OF THE INVENTION

[0014] Hereinafter, holder pants according to one embodiment of the present invention will be described with reference to the drawings.

[0015] In this specification, "wearing holder pants" refers to the state in which the holder pants are worn on the body, regardless of whether the absorbent pad absorbs body fluids before, during, or after the absorption. Furthermore, "front" refers to the direction that faces the wearer's ventral side when the holder pants are worn, and "rear" refers to the direction that faces the wearer's back. Furthermore, "upper" refers to the direction that faces the wearer's head when the holder pants are worn, and "lower" refers to the direction that faces the wearer's feet. Furthermore, "left-right direction" refers to the left-right direction as seen from a wearer facing forward. Furthermore, "width direction" refers to the direction perpendicular to the front-to-back direction (the direction along the left and right). Furthermore, the "skin side" of each component of the holder pants refers to the direction that faces the wearer's skin when the holder pants are worn, and the "non-skin side" refers to the direction opposite the skin side. Furthermore, "body fluid" refers to liquids excreted from the body to the outside, such as urine, blood, and water in loose stools.

[0016] Fig. 1 is an external view of holder pants according to one embodiment of the present invention when worn. Fig. 2 is an external view showing the holder pants as viewed from the front. Fig. 3 is a plan view of the crotch portion of the holder pants as viewed from the waist opening side. Fig. 4 is a graph showing the amount of water injected before leakage from the absorbent pad when holder pants of Examples and Comparative Examples are used. Note that each figure does not define the relative sizes of the components of the holder pants, and the dimensions of each component can be selected appropriately from a wide range depending on the purpose of the holder pants, the age of the intended wearer, etc.

[0017] (Holder Pants) As shown in Fig. 1, the holder pants 10 according to this embodiment are worn with an absorbent pad 100, such as a light incontinence pad, positioned in the crotch area of ​​the wearer. That is, the holder pants 10 are used to hold the absorbent pad 100 in the crotch area of ​​the wearer. After the absorbent pad 100 has absorbed bodily fluids, the wearer can replace only the used absorbent pad 100 with a new absorbent pad 100, allowing the holder pants 10 to be reused. In this way, the holder pants 10 can be reused by washing them as needed, which is cost-effective and reduces the burden on the environment.

[0018] Examples of the absorbent pad 100 to be held by the holder pants 10 include urine absorption pads, light incontinence pads, light incontinence liners, sanitary napkins, etc. The dimensions specified below are values ​​measured in an unstretched state.

[0019] As shown in Figures 1 to 3, the holder pants 10 comprise a front body 11 that is positioned on the wearer's stomach side when worn, a back body 12 that is positioned on the back side, and a crotch portion (crotch area) 13 that is positioned under the crotch and connects the front body 11 and the back body 12.

[0020] The front body 11, back body 12, and crotch portion 13 of the holder pants 10 are underwear made by knitting a yarn material, and are stretchable in the up-down direction, left-right direction, and front-back direction.

[0021] The waist opening defined by the upper edges of the front body 11 and the back body 12 is inserted over the wearer's waist when worn. A waist opening 14 having a predetermined width is provided circumferentially at the upper edges of the front body 11 and the back body 12 from these upper edges toward the crotch section 13. Left and right leg openings defined by the lower edges of the front body 11, the lower edge of the back body 12, and the left and right edges of the crotch section 13 are inserted over the wearer's legs when worn. Left and right leg openings 15 having a predetermined width are provided circumferentially at the edges of the left and right leg openings. The waist opening 14 and the left and right leg openings 15 are each stretchable in the circumferential direction.

[0022] The holder pants 10 of this embodiment have an opening 16 that is positioned in the center of the width of the crotch portion 13 and extends in the front-to-back direction, and leg elastic members 17 that are provided on the edges of the left and right leg openings 15.

[0023] (Front) The front body 11 is made of a thin, stretchy fabric. The upper edge of the front body 11 defines the front side of the waist opening. The widthwise center portion of the lower edge of the front body 11 is connected to the front edge 13a of the crotch section 13, and the widthwise opposite portions define the front sides of the left and right leg openings. The front body 11 may be made of a single piece of fabric, or may be made by connecting or layering multiple pieces of fabric.

[0024] The fabric constituting the front body 11 is made by knitting yarn materials, and can be synthetic fiber yarns such as polyester, polyamide, polypropylene, polyacrylonitrile, etc., regenerated fiber yarns such as rayon, cupra, acetate, etc., or spun yarns, processed yarns, or blended yarns obtained from these. The above-mentioned yarn materials can also include, but are not limited to, natural fibers such as cotton, wool, linen, silk, etc., and blended yarns thereof.

[0025] (Back) The back body 12 is formed from a thin, stretchy fabric. The upper edge of the back body 12 defines the back side of the waist opening. The widthwise central portion of the lower edge of the back body 12 is connected to the rear edge 13b of the crotch section 13, and the widthwise opposite portions define the back sides of the left and right leg openings. The back body 12 may be formed from a single piece of fabric, or may be formed from multiple pieces of fabric that are joined or layered. The back body 12 and the front body 11 may also be formed from a single, continuous piece of fabric.

[0026] The fabric constituting the back body 12 is made by knitting yarn materials, and can be synthetic fiber yarns such as polyester, polyamide, polypropylene, polyacrylonitrile, etc., regenerated fiber yarns such as rayon, cupra, acetate, etc., or spun yarns, processed yarns, or blended yarns obtained from these. The above-mentioned yarn materials also include, but are not limited to, natural fibers such as cotton, wool, linen, silk, etc., and blended yarns thereof.

[0027] The elongation stress (first elongation stress) of the fabric forming the front body 11 and the back body 12 is preferably 0.02 N / mm or more and 0.30 N / mm or less. This elongation stress prevents excessive tightness from occurring throughout the holder pants 10, maintaining space toward the crotch region 13 and allowing more bodily fluids to be retained. The first elongation stress includes elongation stress in both the circumferential direction around the abdomen formed by the front body 11 and the back body 12 and the direction perpendicular to this circumferential direction.

[0028] (Waist opening) The waist opening 14 is provided at the upper edges of the front and back bodies 11 and 12, and is inserted around the wearer's waist when worn. The waist opening 14 is formed circumferentially, for example, 12 mm wide from the upper edges of the front and back bodies 11 and 12. The fabric that forms the waist opening 14 is made by knitting a yarn material, and can be made from synthetic fiber yarns such as polyester, polyamide, polypropylene, and polyacrylonitrile, regenerated fiber yarns such as rayon, cupra, and acetate, or spun yarns, processed yarns, and blended yarns obtained from these. Other examples of the yarn material include, but are not limited to, natural fibers such as cotton, wool, linen, and silk, and blends thereof.

[0029] The waist opening 14 may be made of the same fabric as the front body 11 and the back body 12. In this case, a stretchable waist elastic member or the like extending in the circumferential direction may be disposed at the upper edge of the front body 11 and the back body 12 where the waist opening 14 is provided. Examples of the waist elastic member include stretchable woven or nonwoven fabrics containing polyurethane fibers, synthetic rubber sheets, and natural rubber sheets.

[0030] The elongation stress (third elongation stress) of the fabric or waist-around elastic member forming the waist opening 14 is preferably 0.35 N / mm or more and 0.55 N / mm or less. That is, the elongation stress of the fabric or waist-around elastic member forming the waist opening 14 is greater than the elongation stress (first elongation stress) of the fabric forming the front body 11 and the back body 12 and the elongation stress (second elongation stress) of the fabric forming the crotch region 13 (described later). This elongation stress allows for a moderate amount of tightness around the waist, preventing the holder pants 10 from slipping down even during heavy incontinence and firmly supporting the absorbent pad 100. For example, if the elongation stress of the fabric of the waist opening 14 is less than 0.35 N / mm, the waist opening 14 will be too stretchy, resulting in a weaker tightness around the waist and increased side leakage of bodily fluids from the absorbent pad 100. On the other hand, if the tensile stress of the waist opening 14 is greater than 0.55 N / mm, the waist opening 14 will become too difficult to stretch, causing excessive tightness around the waist and making the garment uncomfortable to wear. The third tensile stress includes tensile stress in both the circumferential direction around the waist and the direction perpendicular to this circumferential direction.

[0031] (Crotch area) As shown in FIG. 3 , the front edge 13a of the crotch region (crotch area) 13 is curved in a generally arcuate shape, with the widthwise center bulging forward. The rear edge 13b of the crotch region 13 is curved in a generally arcuate shape, with the widthwise center bulging backward. The left and right edges of the crotch region 13 are curved so that the front-to-back intermediate portions are concave inward in the widthwise direction. The length L1 of the crotch region 13 in the front-to-back direction is at least 125 mm. In this embodiment, the crotch region located under the crotch serves as the member (crotch region 13) connecting the front body 11 and the back body 12, but this is not limited thereto. For example, the widthwise centers of the lower edges of the front body 11 and the back body 12 may be connected together without providing the crotch region 13. In this case, the portions of the front body 11 and the back body 12 located under the crotch may serve as the crotch region.

[0032] The fabric constituting the crotch region 13 is made by knitting yarn materials, and examples of the yarn materials that can be used include synthetic fiber yarns such as polyester, polyamide, polypropylene, and polyacrylonitrile, regenerated fiber yarns such as rayon, cupra, and acetate, and spun yarns, processed yarns, and blended yarns obtained from these. The above-mentioned yarn materials also include, but are not limited to, natural fibers such as cotton, wool, linen, and silk, and blended yarns thereof.

[0033] The tensile stress (second tensile stress) of the fabric constituting the crotch region 13 is preferably 0.02 N / mm or more and 0.15 N / mm or less. This tensile stress allows the openings 16 (described later) to expand even when the absorbent pad 100 absorbs bodily fluids, causing the absorbent pad 100 to sag downward and continue to retain more bodily fluids. The second tensile stress includes tensile stresses in both the width direction of the crotch region 13 and the direction perpendicular to the width direction.

[0034] (opening) The crotch section 13 has an opening 16 extending in the front-to-rear direction. The opening 16 is shaped like a symmetrical trapezoid with a wide front width W1 and a narrow rear width W2 (W1 > W2). Because the opening 16 is wide on the front side near the urethral opening, the pressure of the absorbent pad 100, which has absorbed bodily fluids and swelled, can be released at the front side near the urethral opening, ensuring space between the wearer's body and the absorbent pad 100. Furthermore, because the opening 16 is narrow on the rear side, it can tighten the fit toward the body toward the rear, providing adequate support for the absorbent pad 100. This helps prevent urinary leakage.

[0035] The opening 16 is disposed at the center in the width direction of the crotch portion 13. Disposing the opening 16 at the center in the width direction of the crotch portion 13 means disposing the center position of the opening 16 in the width direction at the center position of the crotch portion 13 in the width direction. Furthermore, the opening 16 is disposed at the center in the front-to-rear direction of the crotch portion 13. Disposing the opening 16 at the center in the front-to-rear direction of the crotch portion 13 means disposing the center position of the opening 16 in the front-to-rear direction at the center position of the crotch portion 13 in the front-to-rear direction. In other words, the length L2 in the front-to-rear direction from the front end of the crotch portion 13 to the front end of the opening 16 is the same as the length L3 in the front-to-rear direction from the rear end of the crotch portion 13 to the rear end of the opening 16 (L2 = L3). Thus, the holder pants 10 include the opening 16 that is disposed at the center in the width direction of the crotch portion 13 and the center in the front-to-rear direction and extends in the front-to-rear direction. Note that in this embodiment, the shape of the opening 16 is trapezoidal, but this is not limited thereto, and various shapes extending in the front-to-rear direction (including linear slits) can be used.

[0036] The length L4 in the front-to-rear direction of the opening 16 is preferably 125 mm or more. If the length L4 in the front-to-rear direction of the opening 16 is made shorter than 125 mm, it becomes difficult to release the pressure of the absorbent pad 100 that has absorbed and swelled with bodily fluids through the opening 16, and the amount of water that can be absorbed before urine leakage occurs from the absorbent pad 100 decreases. Note that the upper limit of the length L4 in the front-to-rear direction of the opening 16 is preferably equal to or less than the length L1 in the front-to-rear direction of the crotch portion 13.

[0037] At the front end portion of opening 16, the widthwise distance from the left and right leg openings (left and right edge portions of crotch portion 13) to opening 16 is preferably 15 mm or more, and more preferably 20 mm or more. The front width W1 of opening 16 is preferably 18 mm or more and 35 mm or less. The rear width W2 of opening 16 is preferably 6 mm or more and less than the front width W1. By setting the front width W1 and rear width W2 of opening 16 within the above ranges, the amount of water absorbed by absorbent pad 100 before urine leakage occurs can be improved.

[0038] (leg opening) The leg openings 15 are formed circumferentially and have a predetermined width from the lower edge of the front body 11, the lower edge of the back body 12, and the left and right edges of the crotch 13. One leg opening 15 is provided on each side so that the wearer's left and right legs can be inserted through the leg openings 15 when the garment is worn. The left and right leg openings 15 are preferably formed circumferentially with a width of 9 mm to 12 mm from the edge. The fabric constituting the left and right leg openings 15 is made by knitting yarn materials, and can be made from synthetic fiber yarns such as polyester, polyamide, polypropylene, and polyacrylonitrile, regenerated fiber yarns such as rayon, cupra, and acetate, or spun yarns, processed yarns, and blended yarns obtained from these fibers. Other examples of the yarn materials include, but are not limited to, natural fibers such as cotton, wool, linen, and silk, as well as blends thereof.

[0039] The left and right leg openings 15 may be made of the same fabric as the front body 11, the back body 12, and the crotch area 13. In this case, leg elastic members 17 such as rubber cords may be arranged around the edges of the left and right leg openings 15. For example, one rubber cord may be arranged on each side of the leg openings 15, extending along the left and right leg openings 15.

[0040] In this embodiment, leg elastic members 17 are provided around the entire periphery of the left and right leg openings 15 and are fixed to the front body 11, the back body 12, and the crotch region 13. The elastic cords are preferably knitted flat elastic. By using knitted elastic for the leg elastic members 17, the holder pants 10 can be made to be gentle on the skin while tightly tightening the legs and not leaving marks from the elastic cords. Furthermore, by forming the knitted elastic from a material such as Lycra (registered trademark) fiber, the holder pants 10 can be made to be highly durable and resistant to deterioration by dry cleaning. Note that in this embodiment, the leg elastic members 17 are provided on the edges of the left and right leg openings 15, but this is not a limitation. The leg elastic members 17 may also be positioned inside the edges of the left and right leg openings 15. Furthermore, it is preferable that the leg elastic members 17 be fixed to the front body 11, the back body 12, and the crotch region 13 in a natural length state, but this is not a limitation.

[0041] The width X of the leg elastic members 17 is preferably 9 mm or more and 12 mm or less. If the width X of the leg elastic members 17 is smaller than 9 mm, the leg tightness will be weak, and side leakage of bodily fluids from the absorbent pad 100 will be more likely to occur. Even if multiple (e.g., two) leg elastic members 17 with a width X of less than 9 mm are provided on one side to increase leg tightness, arranging the multiple leg elastic members 17 at a distance from each other may disperse the force of the leg elastic members 17, potentially weakening the leg tightness. Arranging multiple leg elastic members 17 at approximately the same position without spacing them from each other may easily leave marks from the rubber cords. On the other hand, if the width X of the leg elastic members 17 is larger than 12 mm, the area of ​​the leg elastic members 17 will be too large, dispersing the force of the leg elastic members 17 and potentially weakening the leg tightness. The width X of the leg elastic members 17 is the length in the direction perpendicular to the direction in which the leg elastic members 17 extend, and is the width of the elastic in the case of a knitted elastic, and is the diameter in the case of a round elastic.

[0042] The tensile stress (fourth tensile stress) of the leg elastic members 17 is preferably 0.35 N / mm or more and 0.60 N / mm or less. That is, the tensile stress of the leg elastic members 17 is greater than the tensile stress (first tensile stress) of the fabric forming the front body section 11 and the back body section 12 and the tensile stress (second tensile stress) of the fabric forming the crotch region 13. This tensile stress allows for a moderate amount of tightness around the legs, and even if the absorbent pad 100 absorbs body fluids and sags from the opening 16 in the crotch region 13, it can firmly support the three-dimensional gathers and prevent leakage from the crotch region 13. For example, if the tensile stress of the leg elastic members 17 is less than 0.35 N / mm, the leg elastic members 17 will be too stretchy, resulting in a weaker tightness around the legs and increased risk of side leakage of body fluids from the absorbent pad 100. On the other hand, if the elongation stress of the leg elastic members 17 is greater than 0.60 N / mm, the leg elastic members 17 will become too difficult to stretch, causing excessive tightness around the legs and making the garment uncomfortable to wear.

[0043] In this embodiment, leg elastic members 17 are provided in the leg openings 15, but the present invention is not limited to this, and any fabric having a stretchability of 0.35 N / mm to 0.60 N / mm can be used for the leg openings without providing the leg elastic members 17. The fourth stretch stress includes stretch stress in both the circumferential direction around the legs and the direction perpendicular to the circumferential direction.

[0044] The tensile stress of the leg elastic members 17 is measured as follows. First, the leg elastic members 17 are removed from the support pants 10. The natural length of the leg elastic members 17 in the extension direction is 135 mm. Next, a mark (scale) is made with a marker or the like at the center of the natural length of the leg elastic members 17 so that the length in the extension direction is 100 mm. Next, one end of the leg elastic member 17 is attached to a force gauge, and the other end of the leg elastic member 17 is pulled by hand. The value on the force gauge when the length of the part marked (scaled) at 100 mm reaches 200 mm (double the length) is taken as the tensile stress.

[0045] In the holder pants 10 configured as described above, the fabric forming the front body 11 and the back body 12 is stretchable, and by setting the elongation stress to a relaxed level of 0.02 N / mm or more and 0.30 N / mm or less, the holder pants 10 as a whole are not subjected to excessive tightness, and space can be maintained toward the crotch area 13, allowing more bodily fluids to be retained.

[0046] Furthermore, since the crotch portion 13 is provided with the opening 16, the pressure of the absorbent pad 100 that has swelled by absorbing bodily fluids can be released through the opening 16. This allows a space to be secured between the wearer's body and the absorbent pad 100, thereby preventing urine leakage.

[0047] Furthermore, the fabric constituting the crotch portion 13 is stretchable, and by setting the elongation stress to a relaxed level of 0.02 N / mm or more and 0.15 N / mm or less, even when the absorbent pad 100 absorbs bodily fluids, there is room for the opening 16 to expand, and the absorbent pad 100 hangs down, allowing it to continue to retain more bodily fluids.

[0048] Furthermore, by providing a moderate amount of tension at the leg openings 15, between 0.35 N / mm and 0.60 N / mm, even if the absorbent pad 100 absorbs bodily fluids and sags from the opening 16 provided in the crotch area 13, the three-dimensional gathers can be firmly supported to prevent leakage from the crotch area 13.

[0049] Furthermore, by providing a moderate amount of tightness with an elongation stress of 0.35 N / mm or more and 0.55 N / mm or less for the fabric forming the waist opening 14, the holder pants 10 themselves will not slip down even in the event of heavy incontinence, and can firmly support the absorbent pad 100.

[0050] As described above, according to this embodiment, it is possible to provide holder pants 10 that can prevent urine leakage.

[0051] 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]

[0052] 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.

[0053] (Examples 1 to 9 and Comparative Examples 1 to 7) Each of the holder pants of Examples 1 to 9 and Comparative Examples 1 to 7 described below was produced under the conditions shown in Tables 1 and 2. Then, a water injection test was carried out on the absorbent pad of each of the holder pants, and the amount of water injected until water leaked from the absorbent pad was measured.

[0054] Example 1 The holder pants of Example 1 were shorts-type holder pants without leg sections that cover the wearer's thighs. The elongation stress of the fabric of the front and back sections (hereinafter referred to as the abdominal area) of the holder pants was 0.04 N / mm. A stretchable woven fabric with a width of 12 mm and an elongation stress of 0.35 N / mm was provided along the circumferential direction of the upper edge of the abdominal area of ​​the holder pants as a waist elastic member. A trapezoidal opening with a wide front width was provided in the center of the width and front-to-back direction of the crotch area of ​​the holder pants. The length of the opening in the front-to-back direction was set to 125 mm, the front width was set to 18 mm, and the back width was set to 6 mm. The elongation stress of the fabric of the crotch area was 0.02 N / mm. Additionally, a knitted elastic (flat elastic) with a member width of 9 mm and an elongation stress of 0.37 N / mm was attached to each edge of the left and right leg openings as leg elastic members. The leg elastic members used were knitted elastic that was resistant to stretching and strong (it does not stretch much unless a large force is applied, and the elastic has a strong tightening force; the same applies below). The elongation stress of the waist elastic members and leg elastic members was measured using the same method as described above for measuring the elongation stress of leg elastic member 17. The elongation stress of the fabric around the abdomen and inseam of the holder pants was measured using the following method. First, a 25 mm wide piece of fabric removed from the holder pants was prepared. Next, a mark (scale) was made in the center of this fabric using a marker or similar to measure the length in the extension direction to 50 mm. Next, attach one end of the fabric to the force gauge and pull the other end of the fabric by hand. The value on the force gauge when the length of the part marked (scaled) at 50 mm reaches 100 mm (double the length) is taken as the extensional stress.

[0055] Example 2 The holder pants of Example 2 were manufactured under the same conditions as those of Example 1, except that the tensile stress of the fabric around the abdomen of the holder pants was 0.30 N / mm, the tensile stress of the elastic member around the waist was 0.50 N / mm, the tensile stress of the fabric in the crotch area was 0.13 N / mm, and the tensile stress of the elastic member around the legs was 0.51 N / mm.

[0056] Example 3 The conditions for the holder pants of Example 3 are the same as those for Example 1, except that the tensile stress of the fabric around the abdomen of the holder pants is 0.15 N / mm, the tensile stress of the elastic member around the waist is 0.45 N / mm, the tensile stress of the fabric in the crotch area is 0.08 N / mm, and the tensile stress of the elastic member around the legs is 0.43 N / mm.

[0057] Example 4 The holder pants of Example 4 were made under the same conditions as those of Example 1, except that the tensile stress of the fabric around the abdomen of the holder pants was 0.15 N / mm, the tensile stress of the elastic member around the waist was 0.35 N / mm, the tensile stress of the fabric in the crotch area was 0.08 N / mm, and the tensile stress of the elastic member around the legs was 0.43 N / mm.

[0058] Example 5 The holder pants of Example 5 were made under the same conditions as those of Example 1, except that the tensile stress of the fabric around the abdomen of the holder pants was 0.15 N / mm, the tensile stress of the elastic member around the waist was 0.35 N / mm, the tensile stress of the fabric in the crotch area was 0.08 N / mm, and the tensile stress of the elastic member around the legs was 0.37 N / mm.

[0059] Example 6 The holder pants of Example 6 were made under the same conditions as those of Example 1, except that the tensile stress of the fabric around the abdomen of the holder pants was 0.15 N / mm, the tensile stress of the elastic member around the waist was 0.50 N / mm, the tensile stress of the fabric in the crotch area was 0.08 N / mm, and the tensile stress of the elastic member around the legs was 0.51 N / mm.

[0060] Example 7 The holder pants of Example 7 were made under the same conditions as those of Example 1, except that the tensile stress of the fabric around the abdomen of the holder pants was 0.15 N / mm, the tensile stress of the elastic member around the waist was 0.50 N / mm, the tensile stress of the fabric in the crotch area was 0.08 N / mm, and the tensile stress of the elastic member around the legs was 0.43 N / mm.

[0061] Example 8 The holder pants of Example 8 were made under the same conditions as those of Example 1, except that the tensile stress of the fabric around the abdomen of the holder pants was 0.04 N / mm, the tensile stress of the elastic member around the waist was 0.45 N / mm, the tensile stress of the fabric in the crotch area was 0.02 N / mm, and the tensile stress of the elastic member around the legs was 0.43 N / mm.

[0062] Example 9 The holder pants of Example 9 were made under the same conditions as those of Example 1, except that the tensile stress of the fabric around the abdomen of the holder pants was 0.30 N / mm, the tensile stress of the elastic member around the waist was 0.45 N / mm, the tensile stress of the fabric in the crotch area was 0.13 N / mm, and the tensile stress of the elastic member around the legs was 0.43 N / mm.

[0063] (Comparative Example 1) The holder pants of Comparative Example 1 were made under the same conditions as Example 1, except that the tensile stress of the fabric around the abdomen of the holder pants was 0.04 N / mm, the tensile stress of the elastic members around the waist was 0.04 N / mm, the tensile stress of the fabric in the crotch area was 0.02 N / mm, and the tensile stress of the elastic members around the legs was 0.51 N / mm. Compared to Examples 1 to 9, the tensile stress of the elastic members around the waist was lower, ranging from 8% to 11%.

[0064] (Comparative Example 2) The holder pants of Comparative Example 2 were made under the same conditions as Example 1, except that the tensile stress of the fabric around the abdomen of the holder pants was 0.55 N / mm, the tensile stress of the elastic members around the waist was 0.50 N / mm, the tensile stress of the fabric in the crotch area was 0.02 N / mm, and the tensile stress of the elastic members around the legs was 0.43 N / mm. Compared to Examples 1 to 9, the tensile stress of the fabric around the abdomen was higher, ranging from 183% to 1375%.

[0065] (Comparative Example 3) The holder pants of Comparative Example 3 were made under the same conditions as Example 1, except that the tensile stress of the fabric around the abdomen of the holder pants was 0.15 N / mm, the tensile stress of the elastic members around the waist was 0.45 N / mm, the tensile stress of the fabric in the crotch area was 0.08 N / mm, and the tensile stress of the elastic members around the legs was 0.14 N / mm. Compared to Examples 1 to 9, the tensile stress of the elastic members around the legs was lower, at 27% to 38%.

[0066] Comparative Example 4 The holder pants of Comparative Example 4 were made under the same conditions as Example 1, except that the tensile stress of the fabric around the abdomen of the holder pants was 0.04 N / mm, the tensile stress of the elastic members around the waist was 0.45 N / mm, the tensile stress of the fabric in the crotch area was 0.32 N / mm, and the tensile stress of the elastic members around the legs was 0.51 N / mm. Compared to Examples 1 to 9, the tensile stress of the fabric in the crotch area was higher, ranging from 246% to 1600%.

[0067] (Comparative Example 5) The holder pants of Comparative Example 5 were made under the same conditions as Example 1, except that the tensile stress of the fabric around the abdomen of the holder pants was 0.04 N / mm, the tensile stress of the elastic members around the waist was 0.11 N / mm, the tensile stress of the fabric in the crotch area was 0.02 N / mm, and the tensile stress of the elastic members around the legs was 0.14 N / mm. Compared to Examples 1 to 9, the tensile stress of the elastic members around the waist and the leg was lower, ranging from 22% to 31%.

[0068] (Comparative Example 6) The holder pants of Comparative Example 6 were made under the same conditions as Example 1, except that the tensile stress of the fabric around the abdomen of the holder pants was 0.47 N / mm, the tensile stress of the elastic members around the waist was 0.50 N / mm, the tensile stress of the fabric in the crotch area was 0.32 N / mm, and the tensile stress of the elastic members around the legs was 0.43 N / mm. Compared with Examples 1 to 9, the tensile stress of the fabric around the abdomen and the tensile stress of the fabric in the crotch area were higher, ranging from 157% to 1175%.

[0069] (Comparative Example 7) The holder pants of Comparative Example 7 were made under the same conditions as Example 1, except that the tensile stress of the fabric around the abdomen of the holder pants was 0.55 N / mm, the tensile stress of the elastic members around the waist was 0.04 N / mm, the tensile stress of the fabric in the crotch area was 0.53 N / mm, and the tensile stress of the elastic members around the legs was 0.14 N / mm. Compared to Examples 1 to 9, the tensile stress of the elastic members around the waist and the leg areas was lower, and the tensile stress of the fabric around the abdomen and the tensile stress of the fabric in the crotch area was higher.

[0070] (Test Method) First, the weight of a new absorbent pad before use (before water is poured in) is measured. Next, the absorbent pad is placed in the crotch area of ​​a standing dummy, and the dummy is made to wear holder pants. Next, blue-colored saline is poured into the absorbent pad from a virtual urethral opening located in the crotch area of ​​the dummy at a constant rate (4.6 ml / sec to 5.3 ml / sec). When it is visually confirmed that the saline has leaked from the absorbent pad, the pouring of saline is stopped. After the pouring of saline is stopped, the absorbent pad is removed from the dummy and holder pants, and the weight of the absorbent pad after pouring is measured. The difference between the weight of the absorbent pad after pouring and the weight of a new absorbent pad before use is taken as the amount of water poured in until leakage from the absorbent pad (hereinafter sometimes referred to as "absorption amount"). Note that the method for measuring the amount of water poured in until leakage from the absorbent pad is not limited to the above and may be calculated, for example, by multiplying (water pouring rate) by (time until leakage). The virtual urethral opening of the dummy is located forward of the position directly below the crotch of the dummy, and faces the approximate center between the front end of the crotch part and the center of the crotch part in the front-to-back direction when the holder pants are worn.

[0071] The results are shown in Tables 1 and 2 and Fig. 4. Fig. 4 is a graph showing the amount of water injected before leakage from the absorbent pad when holder pants of Examples and Comparative Examples were used. The horizontal axis of Fig. 4 shows Examples 1 to 9 and Comparative Examples 1 to 7, and the vertical axis of Fig. 4 shows the amount of water injected before physiological saline leaked from the absorbent pad in the above test.

[0072] [Table 1]

[0073] [Table 2]

[0074] As described above, it is confirmed from Tables 1 and 2 and FIG. 4 that the present disclosure can provide holder pants that can prevent urine leakage. [Explanation of symbols]

[0075] 10: Holder Pants 11: Front 12: Back 13: Crotch area (inseam) 14: Waist opening 15:Left and right leg openings 16:Aperture 17: Elastic material around the legs 100: Absorbent pad

Claims

1. Holder pants used to hold absorbent pads, A front body that is positioned on the wearer's stomach when worn, The back body located on the back side, a crotch portion located under the crotch and connecting the front body and the back body; a waist opening having a predetermined width from the upper end edge of the front body and the back body and provided in the circumferential direction; left and right leg openings each having a predetermined width from the left and right edge portions of the crotch portion and provided in a circumferential direction along the left and right leg openings; The front body and the back body are formed of a fabric having a first elongation stress, the crotch portion is formed of a fabric having a second elongation stress, and has an opening disposed at the center in the width direction and extending in the front-to-rear direction; the waist opening has a third tensile stress in a circumferential direction that is greater than the first tensile stress and the second tensile stress; The left and right leg openings have a fourth tensile stress in a circumferential direction that is greater than the first tensile stress and the second tensile stress. Holder pants characterized by:

2. The opening is formed in a trapezoidal shape with a wide front side and a narrow rear side.

2. The holder pants according to claim 1.

3. The second elongation stress is 0.02 N / mm or more and 0.15 N / mm or less.

3. The holder pants according to claim 1 or 2.

4. the first elongation stress is 0.02 N / mm or more and 0.30 N / mm or less, the third elongation stress is 0.35 N / mm or more and 0.55 N / mm or less, The fourth elongation stress is 0.35 N / mm or more and 0.60 N / mm or less.

4. The holder pants according to claim 3.

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