Disposable underpants for women

Abstract

The utility model discloses disposable underpants for women, and belongs to the field of clothes and sanitary products. The female disposable underpants comprise an underpants body and a lining piece, the underpants body comprises a front waist part, a crotch part and a rear waist part which are formed by a base material layer, and the lining piece is compounded on an inner piece layer and at least covers partial area of the crotch part and partial area of the rear waist part; the peripheral edge of the lining sheet is compounded in a point pressing mode, and a pressing part is formed in a point pressing area; the lining piece comprises an absorbing layer, a leakage-proof layer and a liquid-permeable layer, and the absorbing layer is located between the leakage-proof layer and the liquid-permeable layer. According to the underpants, efficient liquid absorption capacity is provided, the leakage risk is reduced, more dry and comfortable experience is provided for a user, and the underpants are particularly suitable for being used in hospitals, travels or special physiological periods.

Description

Technical Field

[0001] The utility model relates to the technical fields of clothing and sanitary products, and more specifically, to a disposable women's underwear. Background Art

[0002] In the field of women's personal hygiene products, disposable underwear has been increasingly valued for its convenience and hygiene. Traditional disposable underwear is usually made of non-woven materials, which provide basic coverage and protection, but have limitations in aspects such as liquid absorption, leakage prevention, and wearing comfort.

[0003] For traditional textile fabric disposable underwear, the fit is poor and the processing efficiency is very low. Disposable underwear made of non-woven materials can be processed in a form similar to disposable diapers, which can greatly improve production efficiency.

[0004] Regarding disposable underwear made of non-woven materials, Patent 202220829223.9 discloses a solution. In this solution, it is considered that when the current non-woven underwear is ultrasonically sealed, the sealing strength is weak and the effect is not good. Therefore, in this solution, a splicing processing method is selected, which can adjust the material according to processing needs.

[0005] The disposable shorts disclosed in Patent 202420809052.2, although solving the comfort problem, are not friendly to girls and cannot absorb liquid. Therefore, further improvement is needed. Summary of the Utility Model

[0006] 1. Technical Problems to be Solved by the Utility Model

[0007] The purpose of the present utility model is to solve the problems existing in the existing disposable underwear for women, and provides a disposable women's underwear. This solution uses a pressing method to compound a lining piece in the crotch part, which has better wearing comfort.

[0008] 2. Technical Solution

[0009] To achieve the above object, the technical solution provided by the present utility model is as follows:

[0010] The disposable women's underwear of the present utility model includes an underwear body and a lining piece. The underwear body includes a front waist part, a crotch part, and a rear waist part formed by a base material layer. The base material layer includes an outer sheet layer and an inner sheet layer, and elastic filaments extending horizontally are arranged between the outer sheet layer and the inner sheet layer;

[0011] The lining piece is compounded on the inner sheet layer and covers at least a partial area of the crotch part and a partial area of the rear waist part; the top edge and the bottom edge of the lining piece are compounded with the base material layer by pressing points;

[0012] The inner lining sheet includes an absorption layer, a leakage prevention layer, and a liquid permeable layer. The absorption layer is a fibrous absorbent material and is located between the leakage prevention layer and the liquid permeable layer. A crimping portion is formed at the outer edge of the inner lining sheet, or a hemming crimping groove with an annular structure is formed on the inner lining sheet to hem the absorption layer, the leakage prevention layer, and the liquid permeable layer.

[0013] Further, the middle region of the inner lining sheet is adhesively connected to the inner sheet layer.

[0014] Further, points are pressed downward on the inner lining sheet to form a hemming crimping groove with an annular structure, and the width of the hemming crimping groove is not less than one-half of the width of the crotch portion.

[0015] Further, the width of the crimping portion is 2 - 12 mm, and the distance between the crimping points within the crimping portion is 1 - 3 mm.

[0016] Further, the upper side edge of the inner lining sheet coincides with the edge of the underwear body and is laminated on the leg apron edge; the lower side edge of the inner lining sheet extends longitudinally for a certain length at the rear waist.

[0017] Further, in the waistband portion, the base material layer is folded inward and wraps the elastomer extending horizontally, and the restoring force of the elastomer is greater than the restoring force of the elastic filaments.

[0018] Further, the length of the base material layer folded inward is greater than the width of the waistband portion, and the part exceeding the waistband portion is crimped on the underwear body by means of pressing points or ultrasonic welding to form a sealing area with spaced-apart crimping points.

[0019] Further, the spacing between adjacent elastic filaments in the longitudinal direction is 1.5 - 3.0 mm, and the denier of the elastic filaments is 50 - 260 denier.

[0020] Further, the grammage range of the outer sheet layer and the inner sheet layer is 4 g / ㎡ - 25 g / ㎡.

[0021] A disposable women's underwear of the present utility model includes an underwear body and an inner lining sheet. The underwear body includes a front waist portion, a crotch portion, and a rear waist portion formed by a base material layer. The base material layer includes an outer sheet layer and an inner sheet layer, and horizontally extending elastic filaments are arranged between the outer sheet layer and the inner sheet layer. The inner lining sheet is laminated on the inner sheet layer and covers at least a part of the crotch portion.

[0022] The inner lining sheet includes an absorption layer, a leakage prevention layer, and a liquid permeable layer. The absorption layer is located between the leakage prevention layer and the liquid permeable layer, and both the length and width of the absorption layer are smaller than the length and width of the leakage prevention layer and the liquid permeable layer. The outer peripheral side edge of the inner lining sheet composites the leakage prevention layer and the liquid permeable layer by means of pressing points, and the pressing point area forms a crimping portion.

[0023] Further, the absorption layer has a water-absorbing polymer composite material, and the crimping portion does not contact the absorption layer of the inner lining sheet.

[0024] Further, the top and bottom edges of the inner lining are laminated with the base material at the lamination points, and there is no lamination point structure between the side edges of the inner lining and the base material. Further, different embodiments of the underwear body and the inner lining can be combined and implemented.

[0025] 3. Beneficial effects

[0026] Adopting the technical solution provided by the present utility model, compared with the prior art, it has the following beneficial effects:

[0027] For the disposable underwear for women of the present utility model, in addition to covering most of the crotch area, the inner lining extends to the back waist, and the edges of the inner lining are laminated by pressing points. Since the inner lining and the base material are only laminated at the edges of the top and bottom sides by pressing points, the problem of hard side edges is avoided. This kind of underwear avoids the problem of bacterial growth that may exist during washing and repeated use of traditional underwear, and is especially suitable for use in hospitals, during travel or during special physiological periods. Description of the drawings

[0028] Figure 1 It is a front structural schematic diagram of a disposable underwear for women;

[0029] Figure 2 It is Figure 1 The unfolded structural schematic diagram of the underwear in

[0030] Figure 3 It is Figure 2 The distribution position schematic diagram of the lamination part in the structure in

[0031] Figure 4 It is a longitudinal cross-sectional schematic diagram of the underwear;

[0032] Figure 5 It is a side pressing point schematic diagram of the inner lining;

[0033] Figure 6 It is a schematic diagram of an embodiment where the transverse width of the absorption layer is smaller than that of the liquid-permeable layer;

[0034] Figure 7 It is Figure 6 A partial cross-sectional schematic diagram of the underwear of a certain embodiment.

[0035] Explanation of the reference numerals in the schematic diagram:

[0036] 100, underwear body;

[0037] 101, outer sheet layer; 102, inner sheet layer; 103, elastic wire; 104, elastic body;

[0038] 11, front waist; 12, crotch; 13, back waist; 14, waist binding area; 15, sealing area;

[0039] 200, Inner Lining Sheet; 201, Absorbent Layer; 202, Leak-Proof Layer; 203, Liquid-Permeable Layer;

[0040] 21, Top Edge; 22, Upper Side Edge; 23, Lower Side Edge; 24, Bottom Edge; 25, Pressing Portion; 26, Edge-Locking Groove;

[0041] 300, Leg-Opening; 31, Leg Apron Edge. Detailed Embodiment

[0042] To further understand the content of the present utility model, the present utility model will be described in detail in conjunction with the accompanying drawings and embodiments.

[0043] The structures, proportions, sizes, etc. shown in the drawings of this specification are only used to cooperate with the content disclosed in the specification for those familiar with this technology to understand and read, and are not used to limit the limiting conditions for the implementation of the present utility model. Therefore, they do not have technical essence. Any modification of the structure, change of the proportional relationship, or adjustment of the size, without affecting the effects that the present utility model can produce and the purposes that can be achieved, should still fall within the scope that can be covered by the technical content disclosed in the present utility model. At the same time, the terms such as "upper", "lower", "left", "right", "middle", etc. cited in this specification are only for the convenience of clear narration and are not used to limit the scope of implementation. The change or adjustment of their relative relationships, without substantial change in the technical content, should also be regarded as the scope that the present utility model can implement.

[0044] Figure 1 Shows a front structural schematic diagram of an embodiment of a women's underwear, having a waistband 14, which is annular and forms a waist opening. A leg opening 300 is formed in the connection area of the front waist 11, crotch 12, and rear waist 13, and the edge of the leg opening 300 is the leg apron edge 31. In the existing implementation, the leg apron edge 31 is generally prevented from not fitting with the skin by an externally added elastomer 104, while in Figure 1 the embodiment, there is no externally added elastomer 104.

[0045] Figure 2 Shows Figure 1 an expanded schematic diagram of the structure, and the front waist 11, crotch 12, and rear waist 13 can be seen. The crotch 12 refers to the narrower area between the front waist 11 and the rear waist 13.

[0046] Figure 3 Shows Figure 2 the structure in, and clearly shows the pressing portion 25 formed by the pressing points. The pressing portion 25 has obvious pressing points in the areas of the top edge 21, upper side edge 22, lower side edge 23, and bottom edge 24 of the inner lining sheet, and there are also some pressing points distributed at the external positions of the top edge 21 and the bottom edge 24.

[0047] Specifically, the disposable panties for women in this embodiment include a panty body 100 and a lining sheet 200. The panty body 100 includes a front waist 11, a crotch 12, and a rear waist 13 formed by a base material layer. After the two side edges of the front waist 11 and the rear waist 13 are sealed, the top forms a waist opening. For example, the side parts are sealed by ultrasonic welding or hot press sealing through pressing points.

[0048] To ensure the fit of the panties, a certain elasticity is required. In this embodiment, the base material layer includes an outer sheet layer 101 and an inner sheet layer 102, and elastic filaments 103 extending horizontally are arranged between the outer sheet layer 101 and the inner sheet layer 102. The elastic filaments 103 are adhesively compounded with the outer sheet layer 101 and the inner sheet layer 102 in a stretched state, so that the formed base material layer has good elasticity in the transverse direction.

[0049] The spacing of the elastic filaments 103 in the longitudinal direction can be within 3.5 mm. Preferably, it can be controlled in the range of 1.2 - 3.2 mm.

[0050] To have good skin-friendliness, the lining sheet 200 is compounded on the inner sheet layer 102 and covers at least three-quarters of the area of the crotch 12 and a part of the area of the rear waist 13. This structure conforms to the female physiological structure and is more comfortable to wear. In some embodiments, the lining sheet 200 can cover the entire area of the crotch 12.

[0051] The top edge 21 and the bottom edge 24 of the lining sheet 200 are compounded with the base material layer by pressing points to realize the connection between the two. Existing methods such as welding and sol can also realize the connection between the two, but using the hot melt pressing point method can achieve rapid processing, without much residence time in the middle, and can reduce the time cost.

[0052] In one embodiment, the lining sheet 200 has a slight absorption capacity. It includes an absorption layer 201, a leakage prevention layer 202, and a liquid permeable layer 203. The absorption layer 201 is a fiber absorption material. The three-layer structure is compounded with each other, making its overall thickness smaller and having certain water absorption, such as water-absorbing fiber non-woven fabric, etc. It is located between the leakage prevention layer 202 and the liquid permeable layer 203, and the dimensions of the absorption layer 201 in the transverse and longitudinal directions are approximately equal to those of the leakage prevention layer 202 and the liquid permeable layer 203. A pressing part 25 is formed on the outer edge of the lining sheet 200, that is, pressing points are formed in a certain distribution within the pressing part 25 to lock the edges of the absorption layer 201, the leakage prevention layer 202, and the liquid permeable layer 203 to prevent liquid from leaking out from the edge. The liquid passes through the liquid permeable layer 203 and is absorbed by the absorption layer 201, and the leakage prevention layer 202 can prevent the liquid from penetrating into the panty body 100. Using this fiber absorption material, the overall structure is lighter and thinner and more comfortable.

[0053] The pressing points, pressing and other methods mentioned above refer to the method of pressing and heating, so that the two materials are compounded together under the action of pressure after being heated. In some embodiments, ultrasonic welding can also be used for compounding. In contrast, the method of pressing points is easier to process and is suitable for high-efficiency assembly line production methods.

[0054] In one embodiment, the inner lining 200 is made of non-elastic material, and the composite area with the underwear body 100 forms an elastic dissipation area. More preferably, the inner lining 200 can be made of elastic material to make it have a certain elasticity, for example, it can still rebound when stretched by 30%. The so-called "non-elastic material" means that the material does not have the ability to recover its original length after being stretched. Generally, if it cannot recover when stretched by more than 15%, it is considered a non-elastic material.

[0055] It should be noted that the so-called "lateral direction" refers to the horizontal direction when the underwear is placed upright, such as Figure 1 in the upright placement state, the elastic body 104 in the waistband 14 extends in the lateral direction. The so-called "longitudinal direction" is the direction perpendicular to the lateral direction in a two-dimensional plane.

[0056] Without special instructions, the inner side of the underwear body refers to the side close to the skin when worn, and the outer side of the underwear body is the side away from the skin. For example, the inner sheet layer 102 is located on the inner side of the underwear body, and the outer sheet layer 101 is located on the outer side of the underwear body.

[0057] In addition, in order to achieve the purpose of leakage prevention, press down on the inner lining 200 to form a lock-edge pressing groove with an annular structure. The width of the lock-edge pressing groove 26 is not less than half of the width of the crotch 12. As Figure 5 shown, multiple lock-edge pressing grooves 26 with different sizes can also be formed on the inner lining 200. The lock-edge pressing groove 26 locks the absorbent layer 201, the leakage prevention layer 202, and the liquid permeable layer 203, and has the same effect as the pressing part, which belongs to different implementation methods.

[0058] In this embodiment, the middle area of the inner lining 200 is adhesively connected to the inner sheet layer 102, and the adhesive connection points are distributed intermittently or over the entire area. The top edge 21 and the bottom edge 23 of the inner lining 200 are compounded with the base material layer by pressing points, and the middle area does not need to be adhesively bonded, so that the middle area of the inner lining 200 has better air permeability. There are intermittent adhesive connection points between the inner lining 200 and the underwear body 100. These adhesive connection points are scattered under the inner lining, so that the inner lining is connected to the underwear body, and the inner lining will not move during processing.

[0059] In some embodiments, to achieve a better connection effect in the press - point connection method, the width of the pressing portion 25 is 4 - 12 mm, such as 5 mm, 8 mm, and the distance between the pressing points within the pressing portion 25 is 1 - 3 mm, such as 1.2 mm, 1.5 mm, 2.3 mm. Using a pressing portion 25 with a certain width can distribute multiple pressing points, thus avoiding cracking at the connection.

[0060] In different embodiments, the upper side edge 22 of the inner lining piece 200 can have different shapes, such as an arc - shaped edge or a straight edge. As a preferred solution, the upper side edge 22 of the inner lining piece 200 coincides with the edge of the underwear body 100 and is laminated on the leg apron edge 31. During processing, the composite material can be directly cut into a certain shape; the lower side edge 23 of the inner lining piece 200 extends longitudinally along the back waist 13 for a certain length to prevent liquid from leaking from the rear.

[0061] To fully cover the crotch 12, the lower side edge 23 of the inner lining piece 200 coincides with the leg apron edge 31 area. During processing, the composite material can be directly cut into a certain shape, making it easier to process.

[0062] In the waist - tightening portion 14, the base material layer is folded inward and wraps the laterally - extending elastomer 104. The restoring force of the elastomer 104 is greater than that of the elastic wire 103. The elastomer 104 can be strip - shaped or bar - shaped filament, and multiple elastomers 104 can be distributed longitudinally. The width of the waist - tightening portion 14 is generally 15 - 35 mm, such as 20 mm, 26 mm. The restoring force of the elastomer 104 is to prevent the underwear body 100 from slipping, while the elastic wire 103 is required to have better conformability. Therefore, the elastomer 104 has a greater restoring force.

[0063] Furthermore, in the part near the waist - tightening portion 14, the underwear body 100 can be subjected to spaced - point pressing by ultrasonic welding to form a sealing area 15 with spaced - distributed pressing points. This sealing area 15 can resist part of the lateral force generated when the elastomer 104 retracts, keeping the product flat to a certain extent. In some embodiments, the top edge 21 of the inner lining piece 200 is located in the sealing area 15, and the pressing - point density of the sealing area 15 is less than that of the pressing portion 25, so the shrinkage at the top of the inner lining piece 200 is greater.

[0064] As a further improvement, the length of the base material layer folded inward is greater than the width of the waist - tightening portion 14. The part exceeding the waist - tightening portion 14 is pressed on the underwear body 100 by ultrasonic welding to form a pressing portion 15 with spaced - distributed pressing points. Reserving a part of the base material layer exceeding the waist - tightening portion 14 results in a greater thickness at the top when forming the sealing area 15, thus enabling better anti - retraction performance. The top edge 21 of the inner lining piece 200 is covered by the folded - over base material layer and fixed within the sealing area 15.

[0065] In a specific solution, the crimping points in the sealing area 15 can be distributed in 2 to 5 rows longitudinally, and the spacing between the crimping points in each row is 10 to 35 mm transversely, such as 14 mm and 25 mm.

[0066] To ensure better flatness of the material, the spacing between adjacent elastic filaments 103 in the longitudinal direction of the base material layer is 1.5 to 3.0 mm, such as 2.2 mm and 2.8 mm, and the denier of the elastic filaments 103 is 50 to 260 denier, such as 170 denier, 210 denier, and 240 denier, forming a material composed of relatively thin elastic filaments. In addition, the gram weight range of the outer sheet layer 101 and the inner sheet layer 102 used in the base material layer is 4 g / ㎡ to 25 g / ㎡, such as 7 g / ㎡, 14 g / ㎡, and 16 g / ㎡. The outer sheet layer 101 and the inner sheet layer 102 can be made of the same non-woven material or different non-woven materials. For example, the outer layer can use a water-repellent non-woven material, and the inner layer can use a hydrophilic non-woven material. The non-woven fabric can be made of all-cotton non-woven fabric.

[0067] To increase breathability, a plurality of ventilation holes can be formed in the composite area between the inner lining sheet 200 and the underwear body 100 to improve the ventilation effect.

[0068] Combined Figure 3 and Figure 6 In one embodiment, a female light incontinence pants is provided. The product in this embodiment can absorb ≥10 cc of body fluid. It includes an underwear body 100 and an inner lining sheet 200. The underwear body 100 includes a front waist portion 11, a crotch portion 12, and a rear waist portion 13 made of a base material layer. The base material layer includes an outer sheet layer 101 and an inner sheet layer 102, and elastic filaments 103 extending transversely are arranged between the outer sheet layer 101 and the inner sheet layer 102. The inner lining sheet 200 is laminated on the inner sheet layer 102 and is located in the middle area between the crotch portion 12 and the front waist portion 11. The inner lining sheet 200 is laminated with the base material layer by a crimping method to form a crimping portion 25. Combining the above various structural parts, as another embodiment of the inner lining sheet 200 in the underwear, the inner lining sheet 200 is laminated on the inner sheet layer 102 and covers at least a partial area of the crotch portion 12, such as three-fourths of the area or the entire area. The top edge 21 and the bottom edge 24 of the inner lining sheet 200 are laminated with the base material layer by a crimping method. There is no crimping structure between the side edges of the inner lining sheet 200 and the base material layer to avoid hard edges after side cutting.

[0069] The inner lining sheet 200 includes an absorption layer 201, a leakage prevention layer 202, and a liquid permeable layer 203. The absorption layer 201 is located between the leakage prevention layer 202 and the liquid permeable layer 203, and the width of the absorption layer 201 in the transverse and longitudinal directions is at least smaller than the width of the liquid permeable layer 203. In this embodiment, the absorption layer 201 has a water-absorbing polymer composite material, and the crimping portion 25 does not contact the absorption layer 201 of the inner lining sheet 200.

[0070] Combined with Figure 6 、 Figure 7 In one embodiment, the leak-proof layer 202 and the liquid-permeable layer 203 have the same size and shape, and the width of the absorbent layer 201 in the transverse and longitudinal directions is smaller than the width of the liquid-permeable layer 203. The absorbent layer 201 can be a rectangular or elliptical structure, etc.

[0071] The size of the absorbent body 201 is relatively small with respect to the inner lining piece 200, so it can be wrapped between the liquid-permeable layer 203 and the leak-proof layer 202. The edges of the liquid-permeable layer 203 and the leak-proof layer 202 are flush, and pressure points are formed in the edge area. The pressure point area forms a crimping part 25 as the edge of the inner lining piece 200. When mild incontinence occurs, the liquid penetrates through the liquid-permeable layer 203 on the surface layer and is absorbed by the high-molecular material in the absorbent layer 201. The leak-proof layer 202 can prevent the liquid from leaking out. The absorbent layer 201 can adopt existing absorbent materials without special limitations.

[0072] Due to being for single use, this kind of underwear avoids the problem of possible bacterial growth during the washing and repeated use of traditional underwear, and is especially suitable for use in hospitals, during travel or special physiological periods. The multi-layer structure design in the inner lining piece 200, especially the use of the absorbent layer 201, provides high-efficient liquid absorption capacity, reduces the risk of leakage, and provides a drier experience for users. The lock-edge pressing groove of the annular structure and the coverage design of the inner lining piece 200 enhance the leak-proof performance of the underwear, especially in the crotch 12 and the back waist 13 areas, providing additional protection for users.

[0073] The above schematically describes the present utility model and its embodiments. This description is not restrictive, and what is shown in the drawings is only one of the embodiments of the present utility model. The actual structure is not limited thereto. Therefore, if those of ordinary skill in the art are inspired by it and design similar structural modes and embodiments without creative work without departing from the creative purpose of the present utility model, they shall fall within the protection scope of the present utility model.

Claims

1. Disposable panties for women, comprising a panty body (100) and a lining piece (200), characterized in that: The described underwear body (100) includes a front waist (11), a crotch (12) and a rear waist (13) composed of a base material layer. The base material layer includes an outer sheet layer (101) and an inner sheet layer (102), and elastic filaments (103) extending horizontally are arranged between the outer sheet layer (101) and the inner sheet layer (102); The inner lining sheet (200) is laminated on the inner sheet layer (102) and covers at least a partial area of the crotch (12); the top edge (21) and the bottom edge (24) of the inner lining sheet (200) are laminated and compounded with the base material layer; The inner lining sheet (200) includes an absorption layer (201), a leakage prevention layer (202) and a liquid permeable layer (203). The absorption layer (201) is a fiber absorption material and is located between the leakage prevention layer (202) and the liquid permeable layer (203); a lamination portion (25) is formed at the outer edge of the inner lining sheet (200), or a lock-edge pressing groove in an annular structure is formed on the inner lining sheet (200) to lock the edges of the absorption layer (201), the leakage prevention layer (202) and the liquid permeable layer (203).

2. The disposable panties for women according to claim 1, characterized in that: The middle area of the inner lining sheet (200) is adhesively connected to the inner sheet layer (102).

3. The disposable panties for women according to claim 1, characterized in that: Pressing points are formed downward on the inner lining sheet (200) to form a lock-edge pressing groove in an annular structure, and the width of the lock-edge pressing groove is not less than one half of the width of the crotch (12).

4. The disposable panties for women according to claim 1, characterized in that: The width of the lamination portion (25) is 2 - 12 mm, and the distance between the lamination points inside the lamination portion (25) is 1 - 3 mm.

5. The disposable panties for women according to claim 1, wherein: The upper side edge (22) of the inner lining sheet (200) coincides with the edge of the underwear body (100) and is laminated on the leg apron edge (31); the lower side edge (23) of the inner lining sheet (200) extends longitudinally for a certain length at the rear waist (13).

6. The disposable panties for women according to any one of claims 1 to 5, characterized in that: At the waist tightening portion (14), the base material layer is folded inwards and wraps an elastomer (104) extending horizontally, and the restoring force of the elastomer (104) is greater than the restoring force of the elastic filaments (103).

7. The disposable panties for women according to claim 6, characterized in that: The length of the inward folding of the base material layer is greater than the width of the waist tightening portion (14), and the part exceeding the waist tightening portion (14) is pressed and combined on the underwear body (100) by means of pressing points or ultrasonic welding to form a sealing area (15) with spaced-apart pressing points.

8. The disposable panties for women according to claim 1, characterized in that: The spacing between adjacent elastic filaments (103) in the longitudinal direction is 1.5 - 3.0 mm, and the denier of the elastic filaments (103) is 50 - 260 denier.

9. The disposable panties for women according to claim 1, characterized in that: The grammage range of the outer sheet layer (101) and the inner sheet layer (102) is 4 g / ㎡ - 25 g / ㎡.

10. Disposable panties for women, comprising a panty body (100) and a lining sheet (200), characterized in that: The described underwear body (100) includes a front waist (11), a crotch (12) and a rear waist (13) composed of a base material layer. The base material layer includes an outer sheet layer (101) and an inner sheet layer (102), and elastic filaments (103) extending horizontally are arranged between the outer sheet layer (101) and the inner sheet layer (102); The inner lining sheet (200) is laminated on the inner sheet layer (102) and covers at least a partial area of the crotch (12); The inner liner (200) includes an absorption layer (201), a leakage prevention layer (202), and a liquid permeable layer (203). The absorption layer (201) is located between the leakage prevention layer (202) and the liquid permeable layer (203), and both the length and width of the absorption layer (201) are smaller than those of the leakage prevention layer (202) and the liquid permeable layer (203). The outer peripheral side edge of the inner liner (200) composites the leakage prevention layer (202) and the liquid permeable layer (203) by means of pressure points, and the pressure point area forms a crimping portion (25).

11. The disposable panties for women according to claim 10, characterized in that: The absorption layer (201) is made of a water-absorbing polymer composite material, and the crimping portion (25) does not contact the absorption layer (201) of the inner liner (200).

12. The disposable panties for women according to claim 10, characterized in that: The top edge (21) and the bottom edge (24) of the inner liner (200) are laminated and composited with the base material by pressure points, and there is no pressure point structure between the side edges of the inner liner (200) and the base material.

13. The disposable panties for women according to claim 10 or 12, characterized in that: The underwear body (100) and the inner liner (200) have the structural features described in any one of claims 2 to 9.

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