Leakage-proof underpants
By designing three-dimensional boat-shaped leak-proof underwear and combining the multi-layer fabric design, the urine leakage problem of women with urinary incontinence is solved, improving the comfort and breathability of wearing, which is suitable for the daily wear needs of women with urinary incontinence.
Patent Information
- Application Number
- CN202421532842.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-01
- Publication Date
- 2025-04-15
- Estimated Expiration
- 2034-07-01
AI Technical Summary
Existing underwear cannot effectively solve the problem of urine leakage in women with urinary incontinence, and adult diapers are inconvenient to wear and poor breathability, which hinder normal walking.
A type of leak-proof underwear is designed, including the front piece of the underwear, the back piece of the underwear and the crotch piece of the underwear. The crotch piece adopts a three-dimensional boat structure, and is equipped with anti-side leakage elastic occlusion fabric on the left and right sides. The crotch piece of the underwear is composed of multiple layers of fabric, including a one-way catheter fabric layer, a urine locking fabric layer, a liquid resisting layer and a panty fabric layer to ensure that the urine is unidirectionally adsorbed and restricted to the underwear.
Effectively prevent urine leakage, avoid external clothing pollution, improve wear comfort and breathability, and is suitable for the daily wear needs of women with urinary incontinence.
Smart Images

Figure CN222751472U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of women's underwear technology, and in particular to a leak-proof underwear. Background Technology
[0002] Urinary incontinence is the involuntary leakage of urine through the urethra. It is caused by various reasons and is a common symptom of urinary disorders. It is more common in women who have given birth and middle-aged and elderly women after menopause, and is often seen in stress urinary incontinence. When coughing, sneezing, lifting heavy objects, running and jumping, the abdominal pressure increases suddenly, and urine leaks out. The amount of urine is small and unpredictable, which inevitably causes embarrassment.
[0003] There are no specific underwear products on the market designed for women with urinary incontinence. The only solution is for women with symptoms to wear adult diapers under their regular underwear. However, these adult diapers are not comfortable to wear, have poor breathability, and are uncomfortable to wear for extended periods. Moreover, women with urinary incontinence are hesitant to remove them, as they are unsure when the symptoms will recur, causing distress to many women with urinary incontinence. Summary of the Invention
[0004] To address the aforementioned issues, this utility model proposes a leak-proof underwear that caters to the needs of female consumers with urinary incontinence for leak-proof underwear. At the same time, it solves the problems of adult diapers being bulky, inconvenient to wear with light and breathable clothing, having poor breathability, and hindering normal walking.
[0005] This utility model proposes a leak-proof underwear, including a front piece, a back piece, and a crotch piece; the front and back pieces are sewn together on both sides of the waist, and the front and back ends of the crotch piece are sewn together to the lower ends of the front and back pieces, respectively.
[0006] The crotch panel of the underwear has a three-dimensional, boat-shaped structure, and elastic fabric on both sides of the crotch panel is provided to prevent side leakage.
[0007] The crotch panel of the underwear includes a leak-proof functional area and left and right elastic lining fabrics for preventing side leakage. The leak-proof functional area is laid flat in the shape of a Yuan Dynasty silver ingot. The left and right elastic lining fabrics for preventing side leakage are aligned and bonded to the left and right sides of the leak-proof functional area, respectively. The outer edges of the top and bottom ends of the elastic lining fabrics are bent and fitted to the corresponding ends of the leak-proof functional area, and the top edges of the outer edges of the top and bottom ends of the elastic lining fabrics are bonded and fixed to the top edges of the corresponding ends of the leak-proof functional area. So that when the underwear is finished and worn on a woman's body to form a three-dimensional structure, the left and right side leakage-proof elastic covering fabrics can stand upright relative to the leakage-proof functional area. The upright upper edges of the left and right side leakage-proof elastic covering fabrics can elastically fit the body position, which can restrict the urine produced by urinary incontinence within the boat-shaped structure formed by the crotch of the underwear. The urine can only be absorbed unidirectionally by the leakage-proof functional area, avoiding urine leakage from the left and right sides, causing pollution to the outer clothing, and causing embarrassment to the wearer.
[0008] The leak-proof functional area includes, from top to bottom, a first urine-wicking and deodorizing fabric layer, a second urine-locking fabric layer, a third liquid-blocking layer, and a fourth underwear fabric layer; the edges of the first urine-wicking and deodorizing fabric layer and the second urine-locking fabric layer are bonded and fixed together, the third liquid-blocking layer is coated on the lower end surface of the second urine-locking fabric layer, and the edges of the third liquid-blocking layer and the fourth underwear fabric layer are bonded and fixed together.
[0009] The first urinary catheter deodorizing fabric layer includes a unidirectional urinary catheter fabric layer, a front deodorizing fabric layer, and a rear deodorizing fabric layer; the lower edge of the front deodorizing fabric layer is aligned and spliced to the front end of the first urinary catheter deodorizing fabric layer, and the upper edge of the rear deodorizing fabric layer is aligned and spliced to the rear end of the first urinary catheter deodorizing fabric layer.
[0010] The inner edges of the left and right side leakage-proof elastic covering fabrics are respectively sandwiched and adhered between the left and right ends of the corresponding third liquid-blocking layer and the fourth underwear fabric layer. The position of the left and right side leakage-proof elastic covering fabrics can prevent urine from leaking out of the underwear from the left and right sides of the second urine-locking fabric layer.
[0011] The unidirectional wicking fabric layer is made of polyester, cotton-ammonia sweater, or elastic ribbed fabric, which has a unidirectional moisture-wicking function, can quickly drain liquid and keep the inside dry; the front and back deodorizing fabric layers are both made of cotton-ammonia sweater, modal sweater, or elastic ribbed fabric, which has a deodorizing function and can effectively remove the odor produced by liquid; the second urine-locking fabric layer is made of air-layer fabric (through structural design using an inner, middle, and outer three-piece fabric structure, thus forming an air gap in the fabric, the air-layer fabric will not produce wrinkles, the middle gap is large, and the surface is pure cotton fabric, so it has the effect of absorbing and locking water) or double-sided fabric, which can absorb and store liquid; the third liquid-blocking layer is made of polyethylene film, which can serve as an anti-leakage coating for the second urine-locking fabric layer; the front and back pieces of the underwear and the fourth underwear fabric layer are all made of cotton-ammonia, modal, or nylon-ammonia fabric.
[0012] The left and right side leakage prevention elastic shielding fabrics are made of polyester or nylon fabric, which have hydrophobic properties and can prevent liquid from leaking out from the sides.
[0013] Both the left and right side leakage prevention elastic shielding fabrics are of unequal width. The widths at both ends of the left and right side leakage prevention elastic shielding fabrics are the same, and the widths at both ends of the left and right side leakage prevention elastic shielding fabrics are smaller than the width at the middle. The difference between the width at the middle of the left and right side leakage prevention elastic shielding fabrics and the width at its front or rear end is 0.5cm-1cm.
[0014] The width of the narrowest part of the flattened crotch panel of the underwear is 6.5cm-10cm; the height difference between the highest point of the front of the crotch panel and the lowest point of the three-dimensional crotch panel is 11cm-16cm; the height difference between the highest point of the rear of the crotch panel and the lowest point of the three-dimensional crotch panel is 10cm-14cm. This design fully considers that the target audience is mostly middle-aged and elderly women, and the underwear needs to be loose and comfortable. Therefore, the crotch panel is appropriately widened in the specification. At the same time, considering the front and rear leakage distance of urinary incontinence in supine or prone positions, the length of the crotch panel is appropriately lengthened. This design ensures that the front and rear leakage is prevented without affecting the breathability of the underwear.
[0015] The upper end of the stitched seam of the front and back panels of the underwear is provided with elastic bands, which allow the underwear to fit better and be confined to the woman's waist.
[0016] Beneficial effects
[0017] This utility model caters to the needs of female consumers with urinary incontinence for underwear that prevents leakage. At the same time, it solves the problems of adult diapers being bulky, inconvenient to wear with thin and breathable clothing, having poor breathability, and hindering normal walking. Attached Figure Description
[0018] Figure 1 This is a schematic diagram of the overall structure of this utility model.
[0019] Figure 2 This is a schematic diagram of the flattened structure of the crotch piece of the underwear of this utility model.
[0020] Figure 3 yes Figure 2 A schematic diagram of the AA-direction cross-sectional structure.
[0021] Figure 4 yes Figure 2 A schematic diagram of the BB-direction cross-sectional structure.
[0022] In the picture:
[0023] 1. Front panel of underwear;
[0024] 2. Back panel of underwear;
[0025] 3. Crotch panel of underwear; 31. Leakage prevention functional area; 311. First urine-wicking and deodorizing fabric layer; 3111. One-way urine-wicking fabric layer; 3112. Front deodorizing fabric layer; 3113. Back deodorizing fabric layer; 312. Second urine-locking fabric layer; 313. Third liquid-resistant layer; 314. Fourth underwear fabric layer; 32. Elastic cover fabric to prevent side leakage; 321. Outer side. Detailed Implementation
[0026] To make the technical problem solved by this utility model, the technical solution adopted, and the technical effects achieved clearer, the technical solution of this utility model will be further described below with reference to the accompanying drawings and specific embodiments. It should be understood that the specific embodiments described herein are merely for explaining this utility model and not for limiting it. Furthermore, it should be noted that, for ease of description, only the parts related to this utility model are shown in the accompanying drawings, not all of them.
[0027] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this utility model and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance. Specifically, the terms "first position" and "second position" refer to two different positions.
[0028] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to fixed connections or detachable connections; mechanical connections or electrical connections; direct connections or indirect connections through an intermediate medium; and internal connections between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.
[0029] Example 1
[0030] See Figures 1-4 As shown, a leak-proof underwear includes a front piece 1, a back piece 2, and a crotch piece 3; the front piece 1 and the back piece 2 are sewn together on both sides of the waist, and the front and rear ends of the crotch piece 3 are sewn together to the lower ends of the front piece 1 and the back piece 2, respectively.
[0031] The crotch panel 3 of the underwear has a three-dimensional boat-shaped structure, and elastic cover fabric to prevent side leakage is provided on both sides of the crotch panel 3.
[0032] The crotch panel 3 of the underwear includes a urine-proof functional area 31 and left and right side urine-proof elastic covering fabrics 32. The urine-proof functional area 31 is flattened in the shape of a Yuan Dynasty silver ingot. The left and right side urine-proof elastic covering fabrics 32 are respectively aligned and glued to the left and right sides of the urine-proof functional area 31. The outer parts 321 of the upper and lower ends of the left and right side urine-proof elastic covering fabrics 32 are bent and attached to the corresponding ends of the urine-proof functional area 31. The top edges of the outer parts 321 of the upper and lower ends of the left and right side urine-proof elastic covering fabrics 32 are glued and fixed to the top edges of the corresponding ends of the urine-proof functional area 31.
[0033] The leak-proof functional area 31 includes, from top to bottom, a first urine-wicking and deodorizing fabric layer 311, a second urine-locking fabric layer 312, a third liquid-blocking layer 313, and a fourth underwear fabric layer 314; the edges of the first urine-wicking and deodorizing fabric layer 311 and the second urine-locking fabric layer 312 are bonded and fixed together, the third liquid-blocking layer 313 is coated on the lower end surface of the second urine-locking fabric layer 312, and the edges of the third liquid-blocking layer 313 and the fourth underwear fabric layer 314 are bonded and fixed together.
[0034] The first urinary catheter deodorizing fabric layer 311 includes a unidirectional urinary catheter deodorizing fabric layer 3111, a front deodorizing fabric layer 3112, and a rear deodorizing fabric layer 3113; the lower edge of the front deodorizing fabric layer 3112 is aligned and spliced to the front end of the first urinary catheter deodorizing fabric layer 311, and the upper edge of the rear deodorizing fabric layer 3113 is aligned and spliced to the rear end of the first urinary catheter deodorizing fabric layer 311.
[0035] The left and right side leakage prevention elastic covering fabrics 32 are respectively sandwiched and adhered between the left and right ends of the aligned third liquid-blocking layer 313 and the fourth underwear fabric layer 314.
[0036] The unidirectional urine-wicking fabric layer 3111 is made of polyester fabric, cotton-ammonia jersey, or elastic rib fabric; the front deodorizing fabric layer 3112 and the rear deodorizing fabric layer 3113 are both made of cotton-ammonia jersey, modal jersey, or elastic rib fabric; the second urine-locking fabric layer 312 is made of air-layer fabric or double-sided fabric; the third liquid-blocking layer 313 is made of polyethylene film; and the front panel 1, the back panel 2, and the fourth fabric layer 314 are all made of cotton-ammonia, modal, or nylon-ammonia fabric.
[0037] The left and right side leakage prevention elastic shielding fabrics 32 are both made of polyester or nylon fabric.
[0038] Both the left and right side leakage prevention elastic shielding fabrics 32 and 32 are fabrics of unequal width. The widths of the front and rear ends of the left and right side leakage prevention elastic shielding fabrics 32 are the same, and the widths of the front and rear ends of the left and right side leakage prevention elastic shielding fabrics 32 are smaller than the width of the middle part. The difference between the width of the middle part of the left and right side leakage prevention elastic shielding fabrics 32 and the width of its front or rear end is 0.5cm-1cm.
[0039] The width of the narrowest part of the flattened crotch piece 3 of the underwear is 6.5cm-10cm; the height difference between the highest point of the front end of the crotch piece 3 and the lowest point of the crotch piece of the three-dimensional structure is 11cm-16cm; the height difference between the highest point of the rear end of the crotch piece 3 and the lowest point of the crotch piece of the three-dimensional structure is 10cm-14cm.
[0040] Example 2
[0041] A leak-proof pair of underwear, which differs from Embodiment 1 in that the upper ends of the sewn seams of the front piece 1 and the back piece 2 of the underwear are provided with elastic bands.
[0042] Although the present invention has been specifically shown and described in conjunction with preferred embodiments, those skilled in the art should understand that various changes in form and detail may be made to the present invention without departing from the spirit and scope of the present invention as defined in the appended claims, and all such changes shall be within the scope of protection of the present invention.
Claims
1. A leak-proof underwear, comprising an underwear front piece (1), an underwear back piece (2) and an underwear crotch piece (3); the underwear front piece (1) and the underwear back piece (2) are fixed by sewing at both sides of the waist, and the front and rear ends of the underwear crotch piece (3) are respectively fixed by sewing to the lower ends of the underwear front piece (1) and the lower ends of the underwear back piece (2) in the corresponding positions, characterized in that: The three-dimensional structure of the crotch piece (3) of the underwear is in the form of a boat. Elastic blocking fabrics for preventing urine leakage from the side are provided on the left and right sides of the crotch piece (3). The crotch piece (3) of the underwear comprises a urine leakage prevention functional area (31) and left and right elastic blocking fabrics for preventing urine leakage from the side (32). The overall flattened shape of the urine leakage prevention functional area (31) is in the form of a silver ingot from the Yuan Dynasty. The left and right elastic blocking fabrics for preventing urine leakage from the side (32) are respectively fixedly bonded to the left and right sides of the urine leakage prevention functional area (31). The upper and lower outer sides (321) of the left and right elastic blocking fabrics for preventing urine leakage from the side (32) are respectively bent and attached to the corresponding ends of the urine leakage prevention functional area (31). The top edges of the upper and lower outer sides (321) of the left and right elastic blocking fabrics for preventing urine leakage from the side (32) are bonded and fixed to the top edges of the corresponding ends of the urine leakage prevention functional area (31) in the corresponding position.
2. The leak-proof underwear according to claim 1, characterized in that: The urine leakage prevention functional area (31) comprises, from top to bottom, a first urine conduction and deodorization fabric layer (311), a second urine locking fabric layer (312), a third liquid blocking layer (313), and a fourth underwear fabric layer (314); the edges of the first urine conduction and deodorization fabric layer (311) and the second urine locking fabric layer (312) are bonded and fixed, the third liquid blocking layer (313) is coated on the lower end surface of the second urine locking fabric layer (312), and the edges of the third liquid blocking layer (313) and the fourth underwear fabric layer (314) are bonded and fixed.
3. The leak-proof underwear according to claim 2, characterized in that: The first urine-conducting deodorizing fabric layer (311) comprises a unidirectional urine-conducting fabric layer (3111), a front deodorizing fabric layer (3112), and a rear deodorizing fabric layer (3113); the lower edge of the front deodorizing fabric layer (3112) is aligned, spliced, and bonded to the front end of the first urine-conducting deodorizing fabric layer (311), and the upper edge of the rear deodorizing fabric layer (3113) is aligned, spliced, and bonded to the rear end of the first urine-conducting deodorizing fabric layer (311).
4. The leak-proof underwear according to claim 3, characterized in that: The inner edges of the left and right side leakage preventing elastic blocking fabrics (32) are respectively sandwiched and bonded between the left and right side ends of the third liquid blocking layer (313) and the fourth underwear fabric layer (314) in the opposite position.
5. The leak-proof underwear according to claim 4, characterized in that: The one-way urine-conducting fabric layer (3111) is made of polyester, cotton-spandex jersey or elastic ribbed fabric; the front deodorizing fabric layer (3112) and the rear deodorizing fabric layer (3113) are both made of cotton-spandex jersey, modal jersey or elastic ribbed fabric; the second urine-locking fabric layer (312) is made of air layer fabric or double-sided fabric; the third liquid-blocking layer (313) is made of polyethylene film; the front piece (1), the rear piece (2) and the fourth fabric layer (314) are all made of cotton-spandex fabric, modal fabric or nylon-spandex fabric.
6. The leak-proof underwear according to claim 5, characterized in that: The left and right side urine leakage preventing elastic shielding fabrics (32) are made of polyester fabric or nylon fabric.
7. The leak-proof underwear according to claim 6, characterized in that: The left anti-side urine leakage elastic covering fabric (32) and the right anti-side urine leakage elastic covering fabric (32) are both fabrics of unequal width. The widths of the front and rear ends of the left anti-side urine leakage elastic covering fabric (32) or the right anti-side urine leakage elastic covering fabric (32) are the same, and the widths of the front and rear ends of the left anti-side urine leakage elastic covering fabric (32) or the right anti-side urine leakage elastic covering fabric (32) are smaller than the width of the middle part. The difference between the width of the middle part of the left anti-side urine leakage elastic covering fabric (32) or the right anti-side urine leakage elastic covering fabric (32) and the width of the front end or the rear end thereof is 0.5 cm to 1 cm.
8. The leak-proof underwear according to claim 7, characterized in that: The width W1 of the narrowest part of the flattened crotch piece (3) is 6.5 cm to 10 cm; the height difference H1 between the highest point at the front end of the crotch piece (3) and the lowest point of the crotch piece of the three-dimensional structure is 11 cm to 16 cm; and the height difference H2 between the highest point at the rear end of the crotch piece (3) and the lowest point of the crotch piece of the three-dimensional structure is 10 cm to 14 cm.
9. The leak-proof underwear according to claim 8, characterized in that: The upper ends of the sewn seams of the front piece (1) and the back piece (2) of the underwear are provided with elastic roots.