Anti-wrinkle sanitary towel

Abstract

The utility model discloses an anti-wrinkle sanitary napkin, which relates to the technical field of sanitary napkins and comprises a liquid-permeable surface layer, an elastic body, an absorber, a leakage-proof bottom layer, a gum unit and a release film which are sequentially stacked, a plurality of longitudinal pressing grooves are arranged on the surface of the absorber facing the liquid-permeable surface layer, and when the absorber is subjected to external force, the gum unit is pressed by the longitudinal pressing grooves. The longitudinal pressing grooves play a role in buffering and dispersing stress, the deformation resistance of the absorber can be enhanced, a good initial state can be maintained easily, the longitudinal pressing grooves can conduct liquid more efficiently and rapidly, the flow guiding performance and the surface area of the absorber are increased, the liquid is helped to be absorbed rapidly, and after the absorber absorbs the liquid, the absorption effect is good. The elastic body can help the protruding part of the absorber to keep a three-dimensional supporting structure, the density of the absorber can be maintained, and therefore the absorption effect and efficiency of the product are improved, the deformation capacity of the absorber is enhanced through the arrangement of the cutting slits, the sanitary towel can be attached to the curve of the human body, and therefore the risk of liquid leakage is effectively reduced.

Description

Technical Field

[0001] This utility model relates to the field of sanitary napkin technology, and in particular to an anti-wrinkle sanitary napkin. Background Technology

[0002] Sanitary napkins are generally composed of a liquid-permeable surface layer, an absorbent core, a leak-proof bottom layer, and an adhesive backing. The liquid-permeable surface layer is mainly responsible for allowing liquid to quickly penetrate into the absorbent core and is usually made of soft materials with good liquid permeability. The absorbent core is usually made of a mixture of fluff pulp and superabsorbent resin, and its function is to absorb and store liquid. The leak-proof bottom layer is used to prevent the absorbed liquid from leaking out. The adhesive backing is located on the back of the product and is used to stick the sanitary napkin to underwear.

[0003] Traditional sanitary napkins have a low modulus of elasticity, which makes them prone to deformation when used for a long time or subjected to external force, affecting the comfort and performance of the product. In particular, for sanitary napkins with low product density, the absorbent core will collapse after absorbing liquid, which will reduce the sanitary napkin's ability to continuously absorb liquid. Therefore, this utility model discloses an anti-wrinkle sanitary napkin to solve the above problems. Utility Model Content

[0004] The purpose of this invention is to provide an anti-wrinkle sanitary napkin to solve the problems mentioned in the background art, such as the low elastic modulus of traditional sanitary napkins, which cause the sanitary napkins to easily deform when used for a long time or subjected to external force, affecting the comfort and use effect of the product, and collapsing after absorbing liquid, which reduces the sanitary napkin's continuous liquid absorption performance.

[0005] To achieve the above objectives, the present invention provides the following solution to the aforementioned technical problems:

[0006] A wrinkle-resistant sanitary napkin includes a liquid-permeable surface layer, an elastomer, an absorbent body, a leak-proof bottom layer, an adhesive backing unit, and a release film, which are stacked in sequence. The absorbent body has multiple longitudinal grooves on its surface facing the liquid-permeable surface layer, and a raised portion is formed between adjacent longitudinal grooves. Multiple elastomers perpendicular to the longitudinal grooves are fixed on the surface of the absorbent body facing the liquid-permeable surface layer.

[0007] As a further embodiment of this utility model, the depth of the longitudinal pressing groove is in the range of 0.5-2.0mm, and the spacing between adjacent longitudinal pressing grooves is 3-10mm.

[0008] As a further embodiment of this utility model, the adhesive backing unit includes two first adhesive application areas and a plurality of second adhesive application areas located between the two first adhesive application areas, wherein the adhesive application amount of the first adhesive application areas is set to 40-60 gsm, and the adhesive application amount of the second adhesive application areas is set to 10-30 gsm.

[0009] As a further embodiment of this utility model, both the first adhesive application area and the second adhesive application area have a linear structure, and both the first adhesive application area and the second adhesive application area are parallel to the longitudinal axis of the sanitary napkin.

[0010] As a further embodiment of this utility model, the edges of the liquid-permeable surface layer and the leak-proof bottom layer are fixed together, so that the absorbent is confined within the receiving cavity formed between the liquid-permeable surface layer and the leak-proof bottom layer.

[0011] As a further embodiment of this invention, the absorbent body has a plurality of cutting slits in the middle region on the side facing the liquid permeable surface, and the depth of the cutting slits is no more than two-thirds of the thickness of the absorbent body.

[0012] Compared with the prior art, the beneficial effects of this utility model are:

[0013] This utility model discloses an anti-wrinkle sanitary napkin. When the absorbent body is subjected to external force, the longitudinal groove plays a role in buffering and dispersing stress, which can enhance the absorbent body's resistance to deformation and help maintain a good initial state. The longitudinal groove can conduct liquid more efficiently and quickly, increasing the absorbent body's conductivity and surface area, helping the liquid to be absorbed quickly. After the absorbent body absorbs liquid, the elastomer can help the raised part of the absorbent body maintain a three-dimensional support structure, which can maintain the absorbent body's density, thereby improving the product's absorption effect and efficiency. The setting of the cut slit enhances the absorbent body's deformation ability, allowing the sanitary napkin to conform to the body's curves, thereby effectively reducing the risk of leakage. Attached Figure Description

[0014] The present invention will be further described below with reference to the accompanying drawings and embodiments:

[0015] Figure 1 This is a structural diagram of an anti-wrinkle sanitary napkin according to the present invention;

[0016] Figure 2 This is a structural exploded view of an anti-wrinkle sanitary napkin according to this utility model.

[0017] The components represented by each number in the attached diagram are listed below: 1. Liquid-permeable surface layer; 2. Elastomer; 3. Absorbent; 31. Longitudinal groove; 32. Raised portion; 33. Cutting slit; 4. Leak-proof bottom layer; 5. Adhesive backing unit; 51. First adhesive application area; 52. Second adhesive application area; 6. Release film. Detailed Implementation

[0018] The present invention will be further described below with reference to the embodiments.

[0019] Please see Figure 1-2This utility model provides an anti-wrinkle sanitary napkin, comprising a liquid-permeable surface layer 1, an elastomer 2, an absorbent body 3, a leak-proof bottom layer 4, an adhesive backing unit 5, and a release film 6, which are stacked in sequence.

[0020] Specifically, the liquid-permeable surface layer 1 is made of non-woven fabric, and the leak-proof bottom layer 4 is made of polyethylene film. These materials prevent liquid absorbed by the absorbent body 3 from leaking to the outside, ensuring that the user's clothing and other items will not get wet. The absorbent body 3 is a mixture of fluff pulp and superabsorbent resin, possessing high absorbency and a large liquid storage capacity. Furthermore, a certain proportion of high-elasticity modulus fibers are added to the material composition of the absorbent body 3. These high-elasticity modulus fibers can be made of polyester, polyester fiber, etc., and the fiber shape can be cylindrical, hollow, or irregularly shaped. The fibers are evenly mixed into the base absorbent material composed of fluff pulp, superabsorbent resin, etc. In this way, the elastic modulus of the absorbent body 3 can be significantly improved, making it less prone to deformation, breakage and clumping when subjected to external force. Moreover, because this type of material has a higher elastic modulus, it can maintain a three-dimensional support structure and maintain the density of the absorbent body 3 even after the absorbent body 3 absorbs liquid, thereby improving the absorption speed of the product. The release film 6 can ensure that the adhesive unit 5 is not contaminated. Before using the sanitary napkin, simply tear off the release film 6.

[0021] Furthermore, the edges of the liquid-permeable surface layer 1 and the leak-proof bottom layer 4 are fixed together, so that the absorbent 3 is confined within the receiving cavity formed between the liquid-permeable surface layer 1 and the leak-proof bottom layer 4.

[0022] Specifically, this structure ensures the stability of the absorbent body 3 inside the sanitary napkin, preventing displacement or deformation, thereby improving the overall performance of the sanitary napkin and the comfort during use. The adhesive portion of the liquid-permeable surface layer 1 and the leak-proof bottom layer 4 can conform to the human body, playing a role in positioning and preventing leakage.

[0023] Furthermore, the absorbent body 3 has a plurality of cutting slits 33 in the middle region on the side facing the liquid permeable surface layer 1, and the depth of the cutting slits 33 is no more than two-thirds of the thickness of the absorbent body 3.

[0024] Specifically, the cutting slit 33 increases the deformability of the absorbent body 3, avoids the discomfort caused by the overall high density of the absorbent body 3, and allows it to better conform to the curves of the human body, which can reduce the risk of leakage. In addition, the cutting slit 33 of appropriate depth can ensure that the absorbent body 3 maintains a certain structural strength.

[0025] Furthermore, the adhesive unit 5 includes two first adhesive application areas 51 and a plurality of second adhesive application areas 52 located between the two first adhesive application areas 51. The amount of adhesive applied to the first adhesive application area 51 is set to 40-60 gsm, and the amount of adhesive applied to the second adhesive application area 52 is set to 10-30 gsm. Both the first adhesive application area 51 and the second adhesive application area 52 have a linear structure, and both the first adhesive application area 51 and the second adhesive application area 52 are parallel to the longitudinal axis of the sanitary napkin.

[0026] Specifically, the first adhesive application area 51 is narrow but has a larger amount of adhesive per unit area, while the second adhesive application area 52 has a wider adhesive strip but a smaller amount of adhesive per unit area. This provides strong adhesion to prevent product displacement and allows for easy peeling without leaving residue on the underwear when the product is removed, effectively improving the product's practicality and user experience.

[0027] Furthermore, the absorber 3 has a plurality of longitudinal grooves 31 on its surface facing the liquid permeable surface layer 1, and a raised portion 32 is formed between adjacent longitudinal grooves 31. The depth of the longitudinal grooves 31 is 0.5-2.0 mm, and the spacing between adjacent longitudinal grooves 31 is 3-10 mm.

[0028] Specifically, the longitudinal groove 31 acts as a buffer and disperses stress, which can enhance the deformation resistance of the absorber 3 and help maintain a good initial state. The longitudinal groove 31 can conduct liquid more efficiently and quickly, increase the conductivity and surface area of ​​the absorber 3, and help the liquid be absorbed quickly.

[0029] Furthermore, a plurality of elastic bodies 2 perpendicular to the longitudinal pressure groove 31 are fixed on the surface of the absorber 3 facing the liquid permeable surface layer 1;

[0030] Specifically, the wavy structure of the elastomer 2 can adapt to the surface structure of the liquid-permeable surface layer 1. The arched part of the elastomer 2 is fixed with the raised part 32, which can help the raised part 32 of the absorbent 3 maintain a three-dimensional support structure, maintain the density of the absorbent, and prevent the absorbent 3 from collapsing or shrinking rapidly in volume after absorbing liquid, thereby improving the absorption effect and efficiency of the product.

[0031] Working principle: When in use, the setting of the cutting slit 33 enhances the deformation ability of the absorbent body 3, allowing the sanitary napkin to conform to the curve of the human body and effectively reduce the risk of leakage. After the absorbent body 3 absorbs liquid, the elastomer 2 can help the raised part 32 of the absorbent body 3 maintain a three-dimensional support structure, maintain the density of the absorbent body 3, thereby improving the absorption effect and efficiency of the product.

Claims

1. An anti-wrinkle sanitary napkin characterized by comprising: The sanitary napkin comprises a liquid-permeable surface layer (1), an elastomer (2), an absorbent body (3), a leakage-proof bottom layer (4), a back adhesive unit (5) and a release film (6) arranged in sequence, wherein the surface of the absorbent body (3) facing the liquid-permeable surface layer (1) is provided with a plurality of longitudinal pressure grooves (31), adjacent longitudinal pressure grooves (31) form a raised portion (32), and a plurality of elastomers (2) perpendicular to the longitudinal pressure grooves (31) are fixed to the surface of the absorbent body (3) facing the liquid-permeable surface layer (1).

2. The anti-wrinkle sanitary napkin according to claim 1, wherein: The depth of the longitudinal pressure grooves (31) ranges from 0.5 to 2.0 mm, and the spacing between adjacent longitudinal pressure grooves (31) ranges from 3 to 10 mm.

3. The anti-wrinkle sanitary napkin according to claim 1, wherein: The back adhesive unit (5) comprises two first adhesive areas (51) and a plurality of second adhesive areas (52) between the two first adhesive areas (51), wherein the adhesive amount of the first adhesive area (51) is set to 40-60 gsm, and the adhesive amount of the second adhesive area (52) is set to 10-30 gsm.

4. The anti-wrinkle sanitary napkin according to claim 3, wherein: The first adhesive area (51) and the second adhesive area (52) are both in line structure, and the first adhesive area (51) and the second adhesive area (52) are both parallel to the longitudinal axis of the sanitary napkin.

5. The anti-wrinkle sanitary napkin of Claim 1 wherein: The edge portions of the liquid-permeable surface layer (1) and the leakage-proof bottom layer (4) are fixed to each other, so that the absorbent body (3) is positioned in the accommodating cavity formed between the liquid-permeable surface layer (1) and the leakage-proof bottom layer (4).

6. The anti-wrinkle sanitary napkin of Claim 1 wherein: The middle area of the absorbent body (3) on the side facing the liquid-permeable surface layer (1) is provided with a plurality of cutting slits (33), and the depth of the cutting slits (33) is not greater than two-thirds of the thickness of the absorbent body (3).

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