Leakage-proof safe pyjama trousers
The leak-proof sleeping pants, with their partitioned design and curved structure, solve the leakage problem caused by poor fit, achieving a higher degree of fit and leak-proof effect, ensuring rapid absorption of liquid and effectively preventing side leakage.
Patent Information
- Application Number
- CN202520224027.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Priority Date
- 2025-01-21
- Filing Date
- 2025-02-12
- Publication Date
- 2025-12-02
- Estimated Expiration
- 2035-02-12
AI Technical Summary
Existing sleeping pants have problems such as poor fit leading to side leakage and insufficient absorption speed of the core, making them prone to leakage.
A leak-proof sleeping pant was designed, comprising a wrap-around structure and an absorbent structure. The wrap-around structure consists of a front waist, front abdomen, crotch, back buttocks, and back waist. The absorbent structure consists of an upper absorbent section, an upper blocking section, a quick-absorbing section, a lower blocking section, and a lower absorbent section. Combined with an elastic band area and an arc-shaped section, it enhances the fit and leak-proof effect.
With its partitioned design and curved shape, the sleeping pants improve the fit, reduce the risk of leakage, ensure rapid absorption of liquid, and effectively prevent lateral spillage, providing better leak-proof performance.
Smart Images

Figure CN223615040U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of sleeping pants technology, and in particular to a leak-proof sleeping pants. Background Technology
[0002] Overnight panties are personal hygiene products designed for women's nighttime sleep during menstruation. The absorbent core of overnight panties has a larger surface area and greater absorbency than ordinary overnight sanitary napkins. However, despite the many conveniences they offer, overnight panties also have some problems. If they do not fit well, they can easily lead to side leakage. Insufficient absorption speed of the core can also cause side leakage and seepage problems in actual use. Utility Model Content
[0003] This invention aims to solve at least one of the technical problems existing in the prior art. To this end, this invention proposes a leak-proof sleeping pant with a good fit and excellent leak-proof effect.
[0004] To achieve the above objectives, this utility model provides the following technical solution:
[0005] A leak-proof sleeping pant, comprising:
[0006] The encapsulation structure and the absorption structure fixed to the encapsulation structure;
[0007] The wrapping structure includes a front waist, a front abdomen, a crotch, a back buttock, and a back waist connected sequentially from front to back. The side edges of the front waist, the back waist, the front abdomen, and the back buttock are pressed together. When the leak-proof sleeping pants are laid flat, the wrapping structure also includes inwardly concave arc-shaped portions on both sides. The wrapping structure is provided with a pressing layer, a first fabric layer, a second fabric layer, and a bottom layer sequentially from top to bottom. The absorbent structure is disposed between the first fabric layer and the second fabric layer.
[0008] The absorbent structure includes, from front to back, an upper permeable section, an upper blocking section, a rapid permeable section, a lower blocking section, and a lower permeable section for vertical leakage prevention. The absorbent structure has side blocking areas on both sides for horizontal leakage prevention. The absorbent structure has, from top to bottom, a surface layer, a flow guiding layer, an absorbent layer, and a waterproof bottom membrane layer.
[0009] According to some embodiments of the present invention, the rapid penetration section is provided with a first puncture zone arranged vertically. The first puncture zone is uniformly distributed with a plurality of conical puncture holes that penetrate the surface layer, the guide layer and the absorbent layer. The diameter of the puncture holes in the first puncture zone gradually increases from the left and right sides towards the middle.
[0010] According to some embodiments of the present invention, both the upper permeation section and the lower permeation section are provided with a second puncture zone arranged in a V-shape. The width of the second puncture zone gradually increases from the end of the absorption structure to the rapid permeation section. Multiple conical puncture holes penetrating the surface layer, the guide layer and the absorption layer are evenly distributed on the second puncture zone.
[0011] According to some embodiments of the present invention, the maximum diameter of the puncture holes in the first puncture area and the second puncture area is less than 2 mm.
[0012] According to some embodiments of the present invention, both the upper blocking part and the lower blocking part are provided with U-shaped blocking parts that protrude upwards, and the openings of the blocking parts face the rapid penetration part.
[0013] According to some embodiments of this utility model, a first elastic band area is provided horizontally on the front waist and the back waist, a second elastic band area is provided horizontally on the front abdomen, a third elastic band area is provided horizontally on the back buttocks, a fourth elastic band area is provided vertically on the crotch, an upper arc-shaped elastic band area and a lower arc-shaped elastic band area are provided between the left and right arc-shaped parts, a rib break area is provided on both the upper arc-shaped elastic band area and the lower arc-shaped elastic band area, and a leak-proof elastic band area is provided vertically on the side panel area.
[0014] According to some embodiments of the present invention, the first elastic band area is provided with multiple elastic bands arranged at intervals, the interval between each elastic band in the second elastic band area and the third elastic band area is 2-3 times the interval between each elastic band in the first elastic band area, the interval between each elastic band in the fourth elastic band area is 3 times the interval between each elastic band in the first elastic band area, and the interval between each elastic band in the upper arc-shaped elastic band area and the lower arc-shaped elastic band area is 1.5 times the interval between each elastic band in the first elastic band area.
[0015] According to some embodiments of this utility model, the first elastic band area is provided with six elastic bands, the second elastic band area is provided with seven elastic bands, the third elastic band area is provided with nine elastic bands, the fourth elastic band area is provided with four elastic bands, and the upper arc-shaped elastic band area and the lower arc-shaped elastic band area are provided with three elastic bands.
[0016] According to some embodiments of the present invention, the first elastic band area is disposed between the pressing layer and the first fabric layer, and the second elastic band area, the third elastic band area, the fourth elastic band area, the upper arc-shaped elastic band area and the lower arc-shaped elastic band area are all disposed between the second fabric layer and the bottom layer.
[0017] According to some embodiments of this utility model, the elastic bands in the first elastic band area, the upper arc-shaped elastic band area, and the lower arc-shaped elastic band area are of the same thickness; the elastic bands in the second elastic band area and the third elastic band area are of the same thickness and are thicker than the elastic bands in the first elastic band area, the upper arc-shaped elastic band area, and the lower arc-shaped elastic band area; and the elastic bands in the fourth elastic band area and the leak-proof elastic band area are of the same thickness and are thicker than the elastic bands in the second elastic band area and the third elastic band area.
[0018] This utility model has at least the following beneficial effects:
[0019] The segmented design of the sleeping pants and the inward-curving arc section better adapt to the curves of the human body, making the sleeping pants fit the body more closely and allowing liquid to directly contact the absorbent structure when it is drained, reducing the risk of leakage. To prevent liquid on the quick-draining section from failing to penetrate downwards in time, there are protruding upper and lower blocking sections on the front and back sides of the quick-draining section. The upper and lower penetrating sections can absorb liquid that breaks through the protruding structure when there is a large flow, further preventing leakage. The side blocking area uses elastic to achieve three-dimensional side blocking, blocking liquid that overflows laterally. Attached Figure Description
[0020] Figure 1 This is a schematic diagram of the flattened structure according to an embodiment of the present invention;
[0021] Figure 2 This is a schematic diagram of the flattened structure of the wrapping structure according to an embodiment of the present invention;
[0022] Figure 3 It is along Figure 1 A cross-sectional view of the BB line;
[0023] Figure 4 It is along Figure 1 A cross-sectional view along line AA. Detailed Implementation
[0024] This invention provides the following description with reference to the accompanying drawings to aid in a comprehensive understanding of the various embodiments of the invention as defined by the claims and their equivalents. The description includes various specific details to aid understanding, but these details should be considered exemplary only. Therefore, those skilled in the art will recognize that various changes and modifications can be made to the various embodiments described herein without departing from the scope and spirit of the invention.
[0025] In the description of this utility model, the orientation descriptions, such as up, down, front, back, left, right, etc., are based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and 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.
[0026] It should be understood that when one element (e.g., the first element) is “connected” to another element (e.g., the second element), the element may be directly connected to the other element, or there may be an intervening element (e.g., the third element) between the element and the other element.
[0027] An embodiment of this utility model provides a leak-proof sleeping pant, such as... Figure 1-4 As shown, it includes:
[0028] Encapsulation structure 100 and absorption structure 200 fixed on encapsulation structure 100;
[0029] The wrapping structure 100 includes a front waist 101, a front abdomen 102, a crotch 103, a back buttocks 104, and a back waist 105 connected sequentially from front to back. The side edges of the front waist 101 and the back waist 105, as well as the front abdomen 102 and the back buttocks 104, are pressed together. When the leak-proof sleeping pants are laid flat, the wrapping structure 100 also includes inwardly concave arc-shaped portions 106 located on both sides. The wrapping structure 100 is provided with a pressing layer 107, a first fabric layer 108, a second fabric layer 109, and a bottom layer 110 sequentially from top to bottom. The absorbent structure 200 is disposed between the first fabric layer 108 and the second fabric layer 109.
[0030] The absorbent structure 200 includes, from front to back, an upper infiltration section 201, an upper blocking section 202, a rapid infiltration section 203, a lower blocking section 204, and a lower infiltration section 205 for vertical leakage prevention. The absorbent structure 200 has side blocking areas 206 on both sides for horizontal leakage prevention. The absorbent structure 200 has, from top to bottom, a surface layer 207, a flow guiding layer 208, an absorbent layer 209, and a waterproof bottom membrane layer 210.
[0031] The segmented design of the over-the-lamp pants and the inwardly concave arc-shaped portion 106 better adapt to the curves of the human body, making the over-the-lamp pants fit the body more closely. This allows for direct contact between the over-the-lamp pants and the absorbent structure 200 when liquid is drained, reducing the risk of leakage. The side edges of the front abdomen 102 and the back buttocks 104 are pressed together for easy tearing and immediate disposal. The edge-sealing layer 107 is located on the front waist 101 and the back waist 105 and is adhered to the edges of the upper and lower permeable portions 201 and 205 of the absorbent structure 200. The bottom of the absorbent structure 200 is adhered to the second fabric layer 109, which further secures the absorbent structure 200. The liquid is first poured onto the surface layer 207 of the quick-penetrating section 203, and gradually penetrates into the lower guiding layer 208 and the absorbent layer. To prevent the liquid on the quick-penetrating section 203 from failing to penetrate downwards in time, protruding upper blocking section 202 and lower blocking section 204 are provided on the front and rear sides of the quick-penetrating section 203. The upper blocking section 202 and lower blocking section 204 can be continuous protruding structures or segmented protruding structures. The upper penetrating section 201 and lower penetrating section 205 can absorb the liquid that breaks through the protruding structure when the flow rate is large, further preventing leakage. The side baffle area 206 relies on rubber bands to achieve three-dimensional side baffles and block the liquid that overflows laterally.
[0032] In some embodiments, such as Figure 1 As shown, the rapid penetration section 203 is provided with a first puncture zone 211 arranged vertically. Multiple conical puncture holes 212 that penetrate the surface layer 207, the guide layer 208 and the absorbent layer 209 are evenly distributed on the first puncture zone 211. The diameter of the puncture holes 212 in the first puncture zone 211 gradually increases from the left and right sides to the middle.
[0033] The vertically arranged conical puncture holes 212 can increase the rate of liquid infiltration. Since the liquid first contacts the middle of the first puncture zone 211, the diameter of the middle hole is larger, which is conducive to rapid infiltration and improves comfort.
[0034] In some embodiments, such as Figure 1 As shown, both the upper permeation section 201 and the lower permeation section 205 are provided with V-shaped second puncture zones 213. The width of the second puncture zone 213 gradually increases from the end of the absorption structure 200 to the rapid permeation section 203. Multiple conical puncture holes 212 that penetrate the surface layer 207, the guide layer 208 and the absorption layer 209 are evenly distributed on the second puncture zone 213.
[0035] The V-shaped conical puncture holes 212 form a blocking area corresponding to the direction of liquid flow, which facilitates the absorption of gushing liquid while ensuring comfort.
[0036] In some embodiments, the maximum diameter of the puncture hole 212 in both the first puncture area 211 and the second puncture area 214 is less than 2 mm.
[0037] An excessively large puncture diameter can cause the internal structures to disintegrate.
[0038] In some embodiments, such as Figure 1 As shown, both the upper blocking part 202 and the lower blocking part 204 are provided with U-shaped blocking parts 214 that protrude upwards, and the opening of the blocking part 214 faces the rapid penetration part 203.
[0039] The U-shaped baffle 214 effectively contains the surging liquid, provides better skin contact, and also guides the backflow into the seepage zone, reducing leakage.
[0040] In some embodiments, such as Figure 1-3 As shown, a first elastic band area 111 is provided horizontally on the front waist 101 and the back waist 105, a second elastic band area 112 is provided horizontally on the front abdomen 102, a third elastic band area 113 is provided horizontally on the back buttocks 104, a fourth elastic band area 114 is provided vertically on the crotch 103, an upper arc-shaped elastic band area 115 and a lower arc-shaped elastic band area 118 are provided between the left and right arc-shaped parts 106, a rib break area 116 is provided on both the upper arc-shaped elastic band area 115 and the lower arc-shaped elastic band area 118, and a leak-proof elastic band area 117 is provided vertically on the side panel area 206.
[0041] The zoned elastic bands can add different elasticity to different parts of the sleeping pants according to the curves of the human body, so that the sleeping pants can better fit the human body and prevent leakage by utilizing the elasticity of the elastic bands. It can accommodate more sizes and reduce leakage. The setting of the rib break zone 116 can improve the flatness of the crotch 103 and prevent the ends of each arc-shaped elastic band zone from affecting the crotch 103.
[0042] Furthermore, the first elastic band area 111 is provided with multiple elastic bands arranged at intervals, the interval between each elastic band in the second elastic band area 112 and the third elastic band area 113 is 2-3 times the interval between each elastic band in the first elastic band area 111, the interval between the elastic bands in the fourth elastic band area 114 is 3 times the interval between each elastic band in the first elastic band area 111, and the interval between the elastic bands in the upper arc-shaped elastic band area 115 and the lower arc-shaped elastic band area 118 is 1.5 times the interval between each elastic band in the first elastic band area 111.
[0043] The six elastic bands in the first elastic band area 111 are spaced relatively close together, which can tighten the waist and prevent the sleeping pants from falling down; the elastic bands in the second elastic band area 112 and the third elastic band area 113 are spaced wider on the inside than on the outside, according to the structure of the human body, and different numbers of elastic bands are set in different areas to make it easier to limit the elasticity of different parts.
[0044] Furthermore, the first elastic band area 111 has six elastic bands, the second elastic band area 112 has seven elastic bands, the third elastic band area 113 has nine elastic bands, the fourth elastic band area 114 has four elastic bands, and the upper arc-shaped elastic band area 115 and the lower arc-shaped elastic band area 118 have three elastic bands.
[0045] The number of elastic bands is determined by the optimal balance between the fit of the sleeping pants and production costs in actual production.
[0046] Furthermore, such as Figure 3 As shown, the first elastic band area 111 is disposed between the pressing layer 107 and the first fabric layer 108, and the second elastic band area 112, the third elastic band area 113, the fourth elastic band area 114, the upper arc-shaped elastic band area 115 and the lower arc-shaped elastic band area 118 are all disposed between the second fabric layer 109 and the bottom layer 110.
[0047] Elastic bands hidden between the fabric layers improve comfort and better facilitate the contraction and shrinkage of the fabric structure to fit the body and prevent leaks.
[0048] Furthermore, the elastic bands on the first elastic band area 111, the upper arc-shaped elastic band area 115, and the lower arc-shaped elastic band area 118 are of the same thickness; the elastic bands on the second elastic band area 112 and the third elastic band area 113 are of the same thickness and are thicker than the elastic bands on the first elastic band area 111, the upper arc-shaped elastic band area 115, and the lower arc-shaped elastic band area 118; and the elastic bands on the fourth elastic band area 114 and the leak-proof elastic band area 117 are of the same thickness and are thicker than the elastic bands on the second elastic band area 112 and the third elastic band area 113.
[0049] The thickness of the elastic band determines its elasticity and comfort. For example, the upper elastic bands in the first elastic band area 111, the upper curved elastic band area 115, and the lower curved elastic band area 118 are located at the edges of the overpants and are frequently stretched. These are the thinnest elastic bands, offering better elasticity and allowing for easier stretching and effective contraction of the overpants' edges to accommodate more body sizes while ensuring comfort. The other elastic band areas have thicker elastic bands that provide effective support, reducing the overpants' slippage and ensuring a better fit and leak prevention.
[0050] The terms and words used in the foregoing description and claims are not limited to their literal meaning, but are merely used by the applicant to enable a clear and consistent understanding of the present invention. Therefore, those skilled in the art should understand that the foregoing description of various embodiments of the present invention is for illustrative purposes only, and not intended to limit the present invention as defined by the appended claims and their equivalents.
Claims
1. A leak-proof sleeping pant, characterized in that, include: The encapsulation structure (100) and the absorption structure (200) fixed on the encapsulation structure (100); The wrapping structure (100) includes a front waist (101), a front abdomen (102), a crotch (103), a rear buttocks (104), and a rear waist (105) connected sequentially from front to back. The side edges of the front waist (101), the rear waist (105), the front abdomen (102), and the rear buttocks (104) are pressed together. When the leak-proof sleeping pants are laid flat, the wrapping structure (100) also includes inwardly concave arc-shaped portions (106) located on both sides. The wrapping structure (100) is provided with a pressing layer (107), a first fabric layer (108), a second fabric layer (109), and a bottom layer (110) sequentially from top to bottom. The absorbent structure (200) is disposed between the first fabric layer (108) and the second fabric layer (109). The absorbent structure (200) includes, from front to back, an upper permeable part (201), an upper blocking part (202), a rapid permeable part (203), a lower blocking part (204), and a lower permeable part (205) for vertical leakage prevention. The absorbent structure (200) has side blocking areas (206) on both sides for horizontal leakage prevention. The absorbent structure (200) has, from top to bottom, a surface layer (207), a flow guiding layer (208), an absorbent layer (209), and a waterproof bottom membrane layer (210).
2. The leak-proof sleeping pants according to claim 1, characterized in that: The rapid penetration section (203) is provided with a first puncture zone (211) arranged vertically. The first puncture zone (211) is evenly distributed with a plurality of conical puncture holes (212) that penetrate the surface layer (207), the guide layer (208) and the absorbent layer (209). The diameter of the puncture holes (212) in the first puncture zone (211) gradually increases from the left and right sides to the middle.
3. The leak-proof sleeping pants according to claim 1, characterized in that: Both the upper permeation section (201) and the lower permeation section (205) are provided with V-shaped second puncture zones (213). The width of the second puncture zone (213) gradually increases from the end of the absorption structure (200) to the rapid permeation section (203). Multiple conical puncture holes (212) penetrating the surface layer (207), the guide layer (208) and the absorption layer (209) are evenly distributed on the second puncture zone (213).
4. A leak-proof sleeping pant according to any one of claims 2-3, characterized in that: The diameter of each of the puncture holes (212) is less than 2 mm.
5. The leak-proof sleeping pants according to claim 1, characterized in that: Both the upper blocking part (202) and the lower blocking part (204) are provided with U-shaped blocking parts (214) that protrude upwards, and the opening of the blocking part (214) faces the rapid penetration part (203).
6. The leak-proof sleeping pants according to claim 1, characterized in that: The front waist (101) and the back waist (105) are provided with a first elastic band area (111) in the horizontal direction, the front abdomen (102) is provided with a second elastic band area (112) in the horizontal direction, the back buttocks (104) is provided with a third elastic band area (113) in the horizontal direction, the crotch (103) is provided with a fourth elastic band area (114) in the vertical direction, the left and right arc-shaped parts (106) are provided with an upper arc-shaped elastic band area (115) and a lower arc-shaped elastic band area (118), the upper arc-shaped elastic band area (115) and the lower arc-shaped elastic band area (118) are both provided with a rib break area (116), and the side panel area (206) is provided with a leak-proof elastic band area (117) in the vertical direction.
7. The leak-proof sleeping pants according to claim 6, characterized in that: The first elastic band area (111) is provided with multiple elastic bands arranged at intervals. The interval between each elastic band in the second elastic band area (112) and the third elastic band area (113) is 2-3 times the interval between each elastic band in the first elastic band area (111). The interval between the elastic bands in the fourth elastic band area (114) is 3 times the interval between each elastic band in the first elastic band area (111). The interval between the elastic bands in the upper arc-shaped elastic band area (115) and the lower arc-shaped elastic band area (118) is 1.5 times the interval between each elastic band in the first elastic band area (111).
8. The leak-proof sleeping pants according to claim 7, characterized in that: The first elastic band area (111) has six elastic bands, the second elastic band area (112) has seven elastic bands, the third elastic band area (113) has nine elastic bands, the fourth elastic band area (114) has four elastic bands, and the upper arc-shaped elastic band area (115) and the lower arc-shaped elastic band area (118) have three elastic bands.
9. The leak-proof sleeping pants according to claim 6, characterized in that: The first elastic band area (111) is disposed between the pressing layer (107) and the first fabric layer (108), and the second elastic band area (112), the third elastic band area (113), the fourth elastic band area (114), the upper arc-shaped elastic band area (115) and the lower arc-shaped elastic band area (118) are all disposed between the second fabric layer (109) and the bottom layer (110).
10. A leak-proof sleeping pant according to claim 6, characterized in that: The elastic bands in the first elastic band area (111), the upper arc-shaped elastic band area (115), and the lower arc-shaped elastic band area (118) are of the same thickness. The elastic bands in the second elastic band area (112) and the third elastic band area (113) are of the same thickness and are thicker than the elastic bands in the first elastic band area (111), the upper arc-shaped elastic band area (115), and the lower arc-shaped elastic band area (118). The elastic bands in the fourth elastic band area (114) and the leak-proof elastic band area (117) are of the same thickness and are thicker than the elastic bands in the second elastic band area (112) and the third elastic band area (113).