Sanitary towel

Abstract

The utility model discloses a sanitary towel. The sanitary towel comprises a fabric layer, an absorption core body and a bottom film, the fabric layer is located on the bottom film, and the absorption core body is located between the fabric layer and the bottom film; the absorption core body comprises a first layer sheet structure, a second layer sheet structure and a third layer sheet structure; the first layer sheet structure is located at the top of the second layer sheet structure, and the third layer sheet structure is located at the bottom of the second layer sheet structure; the first lamellar structure and the third lamellar structure are made of organic cotton, and the second lamellar structure body is made of bio-based acrylic acid. Through the design of the three-layer structure, the absorption capacity of the sanitary towel is improved, the risk of liquid reverse osmosis caused by absorption saturation is reduced, and the use comfort of a user is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of sanitary napkin preparation, in particular to a sanitary napkin. Background Art

[0002] Currently, the absorbent core materials of sanitary napkins on the market are mostly made of cotton or wood pulp fluff, which generally have slow absorption speed and small absorption amount. Users need to change them within a certain period of time to avoid absorption saturation due to excessive secretion of liquid, which leads to liquid reverse osmosis and increases user discomfort. Utility Model Content

[0003] The purpose of the utility model is to overcome the deficiencies of the prior art. The utility model provides a sanitary napkin, which improves the absorption capacity of the sanitary napkin through a three-layer structure design, reduces the risk of absorption saturation and liquid reverse osmosis, and improves user comfort.

[0004] The utility model provides a sanitary napkin, which comprises a fabric layer, an absorbent core and a bottom film;

[0005] The fabric layer is located on the bottom film, and the absorbent core is located between the fabric layer and the bottom film;

[0006] The absorbent core comprises a first layer structure, a second layer structure and a third layer structure;

[0007] The first layer structure is located on the top of the second layer structure, and the third layer structure is located on the bottom of the second layer structure;

[0008] The first sheet structure and the third sheet structure are made of organic cotton, and the second sheet structure body is made of bio-based acrylic acid.

[0009] Furthermore, the fabric layer includes a first fabric area, a second fabric area and a third fabric area, the second fabric area is located on one side of the edge of the first fabric area, and the third fabric area is located on the other side of the edge of the first fabric area.

[0010] Furthermore, the fabric layer is provided with a first side leakage prevention guard and a second side leakage prevention guard;

[0011] The first side leakage prevention guard is located on one side of the absorbent core, and the second side leakage prevention guard is located at an opposite position on one side of the absorbent core;

[0012] The outer side of one end of the first anti-side leakage guard is bonded to one side of the fabric layer, and the outer side of one end of the second anti-side leakage guard is bonded to a relative position on one side of the fabric layer.

[0013] Furthermore, the main body material of the fabric layer is hemp cotton.

[0014] Furthermore, the base film includes a first base film region, a second base film region and a third base film region, the second base film region is located on one side of the edge of the first base film region, and the third base film region is located on the other side of the edge of the first base film region.

[0015] Furthermore, the bottom surface of the base film is provided with an environmentally friendly adhesive.

[0016] Furthermore, a structural adhesive is provided between the absorbent core and the bottom film, and the absorbent core is bonded to one side of the bottom film.

[0017] Furthermore, one end of the first anti-side leakage guard is bonded to one side of the bottom film, and the outer side of one end of the second anti-side leakage guard is bonded to a relative position on one side of the bottom film.

[0018] Furthermore, the base film body is made of degradable polylactic acid material.

[0019] Furthermore, a structural adhesive is provided between the first layer structure and the second layer structure, and a structural adhesive is provided between the third layer structure and the second layer structure.

[0020] The utility model provides a sanitary napkin, which has a three-layer structure and is provided with composite paper formed by bio-based acrylic acid inside two layers of organic cotton, thereby increasing the absorption capacity of the sanitary napkin, reducing the risk of absorption saturation and causing liquid reverse osmosis, and improving the comfort of users. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0022] Figure 1 It is a structural schematic diagram of the sanitary napkin in the utility model;

[0023] Figure 2 It is a structural schematic diagram of the fabric layer in the utility model;

[0024] Figure 3 It is a structural schematic diagram of the bottom membrane of the utility model. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0026] Figure 1 The schematic diagram of the structure of the sanitary napkin in the utility model is shown. The sanitary napkin comprises a fabric layer 1, an absorbent core 2 and a bottom film 3; the fabric layer 1 is located on the bottom film 3, and the absorbent core 2 is located between the fabric layer 1 and the bottom film 3; the absorbent core 2 comprises a first layer structure, a second layer structure and a third layer structure; the first layer structure is located on the top of the second layer structure, and the third layer structure is located at the bottom of the second layer structure; the first layer structure and the third layer structure are made of organic cotton, and the second layer structure body is made of bio-based acrylic acid, that is, the second layer structure is a composite paper structure based on bio-based acrylic acid, so that the second layer structure can be attached to the first layer structure and the third layer structure.

[0027] Specifically, bio-based acrylic acid is a material with high water absorption. Under the condition of the same mass, its saturated water absorption capacity is 3 times that of cotton. The bio-based acrylic acid can be made from corn syrup and is naturally degradable.

[0028] The area of ​​the first layer structure completely covers one side of the second layer structure, and the area of ​​the third layer structure completely covers the other side of the second layer structure. The main body material of the first layer structure is organic cotton. The first layer structure plays a drainage role, so that the second layer structure absorbs liquid evenly. The third layer structure is used to absorb liquid that is reversely osmotic due to excessive liquid absorption by the second layer structure, thereby avoiding liquid overflow due to the user's failure to change the sanitary napkin in time.

[0029] Furthermore, a structural adhesive is provided between the first layer structure and the second layer structure, and a structural adhesive is provided between the third layer structure and the second layer structure.

[0030] Specifically, the structural adhesive is an environmentally friendly structural adhesive, which is added between the first layer structure, the second layer structure and the third layer structure, and then rolled again to obtain a three-layer core structure.

[0031] Since the bio-based acrylic particles swell when exposed to water, a first layer structure and a second layer structure are respectively arranged on the top and bottom of the second layer structure, which has the effect of fixing the second layer structure, thereby solving the problem of the second layer structure becoming loose when exposed to water, preventing the absorbent core 2 from shifting, and improving the comfort of the product when used.

[0032] Figure 2 The structural schematic diagram of the fabric layer in the utility model is shown. Further, the fabric layer 1 includes a first fabric area 11, a second fabric area 12 and a third fabric area 13, wherein the second fabric area 12 is located on one side of the edge of the first fabric area 11, and the third fabric area 13 is located on the other side of the edge of the first fabric area 11.

[0033] Specifically, the second fabric area 12 is arranged on one side outside the bottom crotch of the panties, and the third fabric area 13 is arranged on the other side outside the bottom crotch of the panties, for fixing the first fabric area 11 so that the first fabric area 11 is not easily displaced.

[0034] Figure 3 The bottom film 3 is an integrated cutting structure, so that the bottom film 3 can fit the shape of the fabric layer 1, and the bottom film 3 includes a first bottom film area 31, a second bottom film area 32 and a third bottom film area 33, wherein the second bottom film area 32 is located on one side of the edge of the first bottom film area 31, and the third bottom film area 33 is located on the other side of the edge of the first bottom film area 31.

[0035] Furthermore, an environmentally friendly adhesive 34 is provided on the bottom surface of the base film 3 .

[0036] Specifically, the base film 3 is the same size as the fabric layer 1 , and one side of the base film 3 is bonded to the fabric layer 1 .

[0037] The environmentally friendly adhesive 34 on one side of the second bottom film area 32 is bonded to one side of the outside of the bottom crotch of the panties, and the environmentally friendly adhesive 34 on one side of the third bottom film area 33 is bonded to the other side of the outside of the bottom crotch of the panties. Since one side of the bottom film 3 is bonded to the fabric layer 1, the second fabric area 12 follows the second bottom film area 32 to be arranged on one side of the outside of the bottom crotch of the panties, and the third fabric area 13 follows the third bottom film area 33 to be arranged on the other side of the outside of the bottom crotch of the panties; one side of the first bottom film area 31 is bonded to the inside of the bottom crotch of the panties through the environmentally friendly adhesive 34. Since one side of the bottom film 3 is bonded to the fabric layer 1, the first fabric area 11 follows one side of the first bottom film area 31 to be bonded to the inside of the bottom crotch of the panties.

[0038] Furthermore, a film is provided on the outside of the sanitary napkin, and the film serves as the outer packaging of the sanitary napkin.

[0039] Specifically, a release paper is provided on the bottom surface of the base film 3, and the function of the release paper is to block the direct contact between the environmentally friendly adhesive 34 and the film, so as to prevent the film and the base film 3 from being damaged due to the adhesive force of the environmentally friendly adhesive 34 when the product is used.

[0040] Furthermore, a structural adhesive is provided between the absorbent core 2 and the bottom film 3 , and the absorbent core 2 is bonded to one side of the bottom film 3 .

[0041] Specifically, the absorbent core 2 follows one side of the first bottom film area 31 and is bonded to the inside of the bottom crotch of the panties, so that the absorbent core 2 can be easily fixed at a suitable position in the bottom crotch of the panties. The absorbent core 2 is bonded to one side of the bottom film 3 to prevent the absorbent core 2 from moving, resulting in incomplete liquid absorption and side leakage.

[0042] Furthermore, the fabric layer 1 is provided with a first anti-side leakage guard 4 and a second anti-side leakage guard 5; the first anti-side leakage guard 4 is located on one side of the absorbent core 2, and the second anti-side leakage guard 5 is located at a relative position on one side of the absorbent core 2; the outer side of one end of the first anti-side leakage guard 4 is bonded to one side of the fabric layer 1, and the outer side of one end of the second anti-side leakage guard 5 is bonded to a relative position on one side of the fabric layer 1.

[0043] Furthermore, one end of the first anti-side leakage guard 4 is bonded to one side of the bottom film 3 , and the outer side of one end of the second anti-side leakage guard 5 is bonded to a corresponding position on one side of the bottom film 3 .

[0044] Specifically, the first side leakage prevention guard 4 and the second side leakage prevention guard 5 are symmetrically distributed on the fabric layer 1 and the bottom film 3, so that the first side leakage prevention guard 4 and the second side leakage prevention guard 5 are not easily displaced. If liquid flows to the side of the sanitary napkin, the first side leakage prevention guard 4 and the second side leakage prevention guard 5 can block and absorb the liquid to prevent side leakage.

[0045] Furthermore, the main body material of the fabric layer 1, the first anti-side leakage guard 4 and the second anti-side leakage guard 5 is hemp cotton.

[0046] Specifically, hemp cotton is made of hemp fiber and pure cotton fiber. It has the comfort and moisture absorption of pure cotton fiber, as well as the breathability and freshness of hemp fiber. It has high fiber strength and is not easy to tear or puncture. It better solves the problem that the fiber strength of pure cotton fabric is not high and it is easy to tear or puncture, thereby improving the user's comfort.

[0047] Furthermore, the base film 3 is made of a degradable polylactic acid material, which is a polyester polymer obtained by polymerizing lactic acid as a main raw material, thereby improving the overall degradability of the sanitary napkin and the environmental performance of the product.

[0048] The embodiment of the utility model provides a sanitary napkin. The user sticks the product to the bottom crotch of underwear so that the absorbent core 2 is located at a suitable adsorption position. The first layer structure absorbs liquid to the second layer structure. When the second layer structure absorbs too much liquid, the reverse osmosis liquid flows to the third layer structure, and the third layer structure absorbs the reverse osmosis liquid.

[0049] In addition, the sanitary napkin provided by the embodiment of the utility model is introduced in detail above. Specific examples are used in this article to illustrate the principle and implementation method of the utility model. The description of the above embodiments is only used to help understand the method of the utility model and its core idea; at the same time, for general technical personnel in this field, according to the idea of ​​the utility model, there will be changes in the specific implementation method and application scope. In summary, the content of this specification should not be understood as a limitation on the utility model.

Claims

1. A sanitary napkin, characterized in that: The sanitary napkin comprises a fabric layer, an absorbent core and a bottom film; The fabric layer is located on the bottom film, and the absorbent core is located between the fabric layer and the bottom film; The absorbent core comprises a first layer structure, a second layer structure and a third layer structure; The first layer structure is located on the top of the second layer structure, and the third layer structure is located on the bottom of the second layer structure; The first sheet structure and the third sheet structure are made of organic cotton, and the second sheet structure body is made of bio-based acrylic acid.

2. The sanitary napkin according to claim 1, characterized in that The fabric layer includes a first fabric area, a second fabric area and a third fabric area, the second fabric area is located on one side of the edge of the first fabric area, and the third fabric area is located on the other side of the edge of the first fabric area.

3. The sanitary napkin according to claim 1, characterized in that: The fabric layer is provided with a first side leakage prevention guard and a second side leakage prevention guard; The first side leakage prevention guard is located on one side of the absorbent core, and the second side leakage prevention guard is located at an opposite position on one side of the absorbent core; The outer side of one end of the first anti-side leakage guard is bonded to one side of the fabric layer, and the outer side of one end of the second anti-side leakage guard is bonded to a relative position on one side of the fabric layer.

4. The sanitary napkin according to claim 1, characterized in that: The main body material of the fabric layer is hemp cotton.

5. The sanitary napkin according to claim 1, characterized in that: The base film includes a first base film region, a second base film region and a third base film region, wherein the second base film region is located on one side of an edge of the first base film region, and the third base film region is located on the other side of an edge of the first base film region.

6. The sanitary napkin according to claim 1, characterized in that: The bottom surface of the base film is provided with an environmentally friendly adhesive.

7. The sanitary napkin according to claim 1, characterized in that: A structural adhesive is provided between the absorbent core and the bottom film, and the absorbent core is bonded to one side of the bottom film.

8. The sanitary napkin according to claim 3, characterized in that: One end of the first anti-side leakage guard is bonded to one side of the bottom film, and the outer side of one end of the second anti-side leakage guard is bonded to a relative position on one side of the bottom film.

9. The sanitary napkin according to claim 1, characterized in that: The base film body is made of degradable polylactic acid.

10. The sanitary napkin according to claim 1, characterized in that: A structural adhesive is provided between the first layer structure and the second layer structure, and a structural adhesive is provided between the third layer structure and the second layer structure.

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