CN110074921A - A kind of sanitary napkin - Google Patents

Abstract

A sanitary napkin, an absorbent layer is covered between the surface layer and the leak-proof bottom film, the absorbent layer includes a absorbent cotton pad and a superabsorbent resin layer, and the superabsorbent resin layer covers the surface of the absorbent cotton pad facing the surface layer or wraps around the outer periphery of the absorbent cotton pad , The absorbent cotton pad includes a yarn mesh layer or a skeleton layer. Because the superabsorbent resin layer is good for absorbing liquid, thereby reducing the back seepage of the absorbent cotton pad, making the sanitary napkin more dry while maintaining softness, and the yarn count grid layer or skeleton layer can enhance the strength of the absorbent cotton pad, making the sanitary napkin more comfortable. Absorbent cotton pads are not easy to deform when stretched, which is more conducive to high-speed production of sanitary napkins.

Description

a sanitary napkin

technical field

The invention relates to the field of sanitary products, in particular to a sanitary napkin.

Background technique

Currently commercially available sanitary napkins usually consist of a surface layer, an absorbent layer and a leak-proof bottom film. In the prior art, there are generally two molding methods for the absorbent layer of sanitary napkins. One is to add polymer water-absorbing materials to the defibrated wood pulp fibers and then press them into shape; the other is to use dust-free paper to cover the absorbent layer. The structure of paper or dust-free paper covered with absorbent paper. However, since polymer absorbent materials, wood pulp, and absorbent paper are all hard materials, the overall softness of sanitary products is not good.

The patent with the notification number CN204219161U discloses a sanitary napkin. The absorbent layer uses a coating layer to wrap the polymer particle layer and the absorbent cotton pad. The absorbent cotton is soft in texture and increases the overall softness of the sanitary napkin. , easy to seep back, resulting in dry products, and the absorbent cotton pad is too soft, weak, easy to deform when stretched, which is not conducive to high-speed line production.

SUMMARY OF THE INVENTION

The application provides a sanitary napkin to reduce the rewet amount of the sanitary napkin and make the sanitary napkin drier while increasing the strength of the sanitary napkin.

According to the first aspect, a sanitary napkin is provided in an embodiment, comprising a surface layer, a leak-proof bottom film, and an absorbent layer wrapped between the surface layer and the leak-proof bottom film, the absorbent layer It includes a absorbent cotton pad and a superabsorbent resin layer, the super absorbent resin layer covers the surface of the absorbent cotton pad facing the surface, or covers the outer periphery of the absorbent cotton pad, and the absorbent cotton pad includes a yarn mesh layer or a skeleton layer.

Further, the absorbent cotton pad is made by mixing 1% to 50% of regenerated cellulose fibers and 50% to 99% of cotton fibers.

Further, the regenerated cellulose fiber is viscose, tencel, lyocell, modal or rich viscose.

Further, the superabsorbent resin layer is a dust-free paper containing superabsorbent resin particles, or a dust-free paper containing short fibers.

Further, superabsorbent resin particles are also contained between the absorbent cotton pad and the superabsorbent resin layer covering the absorbent cotton pad.

Further, between the surface of the absorbent cotton pad facing the surface layer and the superabsorbent resin layer covering the absorbent cotton pad, superabsorbent resin particles or superabsorbent resin dust-free paper are included, and the superabsorbent resin dust-free paper contains superabsorbent resin. Granules and/or short fibers.

Further, the surface layer is a perforated air-through non-woven fabric surface layer or a three-dimensional air-through non-woven fabric surface layer.

Further, between the surface layer of the three-dimensional hot-air non-woven fabric and the superabsorbent resin layer covering the absorbent cotton pad, a superabsorbent resin dust-free paper is also included, and the superabsorbent resin dust-free paper contains superabsorbent resin particles and/or short fiber.

Further, a hot air guiding layer is also included between the surface layer of the perforated air-through non-woven fabric and the absorbing layer.

Further, a layer of super absorbent resin dust-free paper is also included between the hot air guide layer and the super absorbent resin layer covering the absorbent cotton pad, and the dust-free paper contains super absorbent resin particles and/or short fibers.

According to the sanitary napkin of the above-mentioned embodiment, since the absorbent layer directly covers the absorbent cotton pad or wraps the outer periphery of the absorbent cotton pad with a superabsorbent resin layer, it is beneficial to absorb liquid, thereby reducing the amount of back seepage of the absorbent cotton pad, so that the sanitary napkin maintains softness. Moreover, the yarn mesh layer or skeleton layer in the absorbent cotton pad can enhance the strength of the absorbent cotton pad, so that the absorbent cotton pad is not easily deformed when stretched, which is more conducive to the high-speed production of sanitary napkins.

Description of drawings

Fig. 1 is an exploded schematic diagram of a sanitary napkin in an embodiment;

Fig. 2 is an exploded schematic diagram of a sanitary napkin in a specific embodiment;

Fig. 3 is an exploded schematic view of a sanitary napkin in another specific embodiment;

Fig. 4 is an exploded schematic diagram of a sanitary napkin in another embodiment;

Fig. 5 is an exploded schematic diagram of a sanitary napkin in yet another specific embodiment;

Fig. 6 and Fig. 7 are exploded diagrams of sanitary napkins in yet another specific embodiment.

Detailed ways

The present invention will be further described in detail below through specific embodiments in conjunction with the accompanying drawings. The characteristics, operations or characteristics described in the specification can be combined in any appropriate manner to form various embodiments.

In the embodiment of the present invention, the absorbent layer directly uses a superabsorbent resin layer containing a superabsorbent resin to cover the absorbent cotton pad or wrap the outer periphery of the absorbent cotton pad, and at the same time add a layer of yarn mesh layer or skeleton layer to the absorbent cotton pad.

Example 1:

In this embodiment, the solution of the present invention is described by taking the superabsorbent resin layer covering the surface of the absorbent cotton pad facing the surface as an example. In this embodiment, the super absorbent resin layer covering the absorbent cotton pad is called the superabsorbent resin covering layer.

Please refer to Fig. 1, Fig. 1 is an exploded schematic diagram of a sanitary napkin in an embodiment, as shown in Fig. 1, the sanitary napkin provided in this embodiment includes a surface layer 1, a leak-proof bottom film 2 and a cover layer 1 and a leak-proof bottom film 2 Wrapped with an absorbent layer 3 in between. Surface layer 1 wherein can be the surface layer that is made of perforated hot-air non-woven fabric, and leak-proof base film 2 has breathable effect. The absorbent layer 3 includes a absorbent cotton pad 31 and a superabsorbent resin covering layer 32, and the superabsorbent resin covering layer 32 covers the surface of the absorbent cotton pad 31 facing the surface layer 1; the middle of the absorbent cotton pad 31 contains a layer of yarn mesh layer 33 or a skeleton layer 33 , the strength of the absorbent cotton pad 31 can be enhanced, making it difficult to deform when stretched, which is more conducive to the production of high assembly lines.

The superabsorbent resin covering layer 32 can be dust-free paper containing superabsorbent resin particles, or dust-free paper containing short fibers. Because the superabsorbent resin material has a strong absorption capacity, like this, by directly using the superabsorbent resin covering layer 32 containing the superabsorbent resin material to cover the absorbent cotton pad 31, the liquid can be well absorbed, thereby reducing the return of the absorbent cotton pad 31. The amount of seepage makes the sanitary napkin more dry.

Preferably, the absorbent cotton pad 31 is made by mixing regenerated cellulose fibers and cotton fibers, wherein the regenerated cellulose fiber content can be 1% to 50%, and the corresponding cotton fiber content is 50% to 99%. The contents of regenerated cellulose fibers and cotton fibers are only preferred contents and are not used to limit the present invention. Since the hygroscopicity and air permeability of regenerated cellulose fibers are stronger than those of cotton fibers, when the absorbent cotton pad 31 contains regenerated cellulose fibers, the stronger hygroscopicity of the regenerated cellulose fibers will help to improve the water-locking and water-holding capacity of the absorbent cotton pads , In this way, the rewet amount of the absorbent cotton pad 31 can be reduced, thereby making the sanitary napkin drier while maintaining the softness of the sanitary napkin. In practical application, the regenerated cellulose fiber can be viscose, tencel, lyocell, modal or rich viscose, but not limited thereto.

In practical application, a layer of hot air guide layer 4 may also be included between the surface layer 1 and the absorbing layer 3 to prevent liquid leakage and enhance the liquid absorption capacity of the sanitary napkin. In a specific embodiment, Fig. 2 shows an exploded view of a sanitary napkin. As shown in Fig. 2, a layer of superabsorbent resin dust-free layer can also be added between the superabsorbent resin cover layer 32 and the hot air guide layer 4. Paper 5, the superabsorbent resin dust-free paper 5 contains superabsorbent resin particles or short fibers, or contains superabsorbent resin particles and short fibers at the same time, which can further increase the absorption capacity of the sanitary napkin and make the sanitary napkin more dry.

Preferably, in another specific embodiment, Fig. 3 shows an exploded view of another sanitary napkin, as shown in Fig. The water-absorbent resin particle layer 34, like this, can further improve the absorption capacity of the sanitary napkin while maintaining the softness of the sanitary napkin, making the sanitary napkin more dry.

In the sanitary napkin provided in this embodiment, the absorbent layer directly uses a superabsorbent resin covering layer containing a superabsorbent resin material to cover the absorbent cotton pad, which is conducive to absorbing liquid, thereby reducing the amount of back seepage of the sanitary napkin and making the sanitary napkin more dry; at the same time , by increasing the yarn count grid layer or skeleton layer in the absorbent cotton pad, the strength of the absorbent cotton pad is enhanced, the stretching is not easy to deform, it is more conducive to high-speed line production, and the production adaptability of sanitary napkins is improved. Further, adding regenerated cellulose fiber in the absorbent cotton pad can improve the water-locking ability of the absorbent cotton pad, thereby reducing the rewet amount of the sanitary napkin and improving the dryness of the sanitary napkin; A layer of superabsorbent resin particles is added between the resin covering layers, which can further increase the absorption capacity of the sanitary napkin while maintaining the softness of the sanitary napkin, and improve the dryness of the sanitary napkin;

Embodiment 2:

In this embodiment, the solution of the present invention is described by taking the superabsorbent resin layer coated on the outer periphery of the absorbent cotton pad as an example. In this embodiment, the super absorbent resin layer covering the absorbent cotton pad is called the superabsorbent resin coating layer.

Please refer to Fig. 4, Fig. 4 is the disassembled diagram of sanitary napkin in another kind of embodiment, as shown in Fig. 4, the sanitary napkin provided in this embodiment comprises surface layer 1, leak-proof bottom film 2 and be surface layer 1 and leak-proof bottom The membrane 2 wraps the absorbent layer 3 in between. Wherein the surface layer 1 can be the surface layer made of three-dimensional air-through non-woven fabric, and the leak-proof base film 2 has a breathable effect. The absorbent layer 3 comprises a absorbent cotton pad 31 and a superabsorbent resin coating 35, and the absorbent cotton pad 31 is covered by a super absorbent resin coating 35; the middle of the absorbent cotton pad 31 contains a layer of yarn count grid layer 33 or a skeleton layer 33, which can The strength of the absorbent cotton pad 31 is enhanced so that it is not easy to deform when stretched, which is more conducive to the production of high assembly line.

The superabsorbent resin coating layer 35 can be dust-free paper containing superabsorbent resin particles, or dust-free paper containing short fibers. Because the superabsorbent resin material has a strong absorption capacity, like this, by directly using the superabsorbent resin coating layer 35 containing the superabsorbent resin material to coat the absorbent cotton pad 31, the liquid can be well absorbed, thereby reducing the amount of absorbent cotton pad 31. The amount of back seepage makes the sanitary napkins drier.

Preferably, the absorbent cotton pad 31 is made by mixing regenerated cellulose fibers and cotton fibers, wherein the regenerated cellulose fiber content can be 1% to 50%, and the corresponding cotton fiber content is 50% to 99%. The hygroscopicity and breathability of fiber are stronger than cotton fiber, when containing regenerated cellulose fiber in the absorbent cotton pad 31, the stronger hygroscopicity of regenerated cellulose fiber will help to improve the water-locking, water-retaining capacity of absorbent cotton pad, so just can The rewet amount of the absorbent cotton pad 31 is reduced, thereby making the sanitary napkin drier while maintaining the softness of the sanitary napkin. In practical application, the regenerated cellulose fiber can be viscose, tencel, lyocell, modal or rich viscose, but not limited thereto.

In a specific embodiment, Fig. 5 shows an exploded view of another sanitary napkin. As shown in Fig. 5, a layer of superabsorbent resin dust-free paper 5 can also be added between the absorbent layer 3 and the surface layer 1. The superabsorbent resin dust-free paper 5 contains superabsorbent resin particles or short fibers, or contains superabsorbent resin particles and short fibers at the same time, which can further increase the absorption capacity of the sanitary napkin and make the sanitary napkin more dry.

Preferably, in yet another specific embodiment, Fig. 6 and Fig. 7 show an exploded view of another sanitary napkin, as shown in Fig. A layer of superabsorbent resin particle layer 34 can also be added between 35, or as shown in Figure 7, between the surface of the absorbent cotton pad 31 facing the surface layer 1 and the superabsorbent resin coating layer 35, a layer of superabsorbent resin dust-free is added. Paper 36, the superabsorbent resin dust-free paper 36 contains superabsorbent resin particles or short fibers, or contains a mixture of superabsorbent resin particles and short fibers, so that the sanitary napkin can be further improved while maintaining the softness of the sanitary napkin. The absorption capacity makes the sanitary napkin drier.

In the sanitary napkin provided in this example, the absorbent layer is directly covered with a superabsorbent resin coating layer containing a superabsorbent resin material to cover the absorbent cotton pad, which is conducive to absorbing liquid, thereby reducing the amount of back seepage of the sanitary napkin and making the sanitary napkin more dry. At the same time, by adding a yarn count grid layer or a skeleton layer to the absorbent cotton pad, the strength of the absorbent cotton pad is enhanced, the stretching is not easy to deform, it is more conducive to high-speed line production, and the production adaptability of the sanitary napkin is improved. Further, adding regenerated cellulose fibers in the absorbent cotton pad can improve the water-locking ability of the absorbent cotton pad, thereby further reducing the amount of back seepage of the sanitary napkin and improving the dryness of the sanitary napkin; A layer of superabsorbent resin particles is added between the surface and the superabsorbent resin coating layer, or a layer of superabsorbent resin dust-free paper containing superabsorbent resin particles and/or short fibers can be added to maintain the softness of the sanitary napkin Further increase the absorption capacity of sanitary napkins and improve the dryness of sanitary napkins.

The above uses specific examples to illustrate the present invention, which is only used to help understand the present invention, and is not intended to limit the present invention. For those skilled in the technical field to which the present invention belongs, some simple deduction, deformation or replacement can also be made according to the idea of the present invention.

Claims (10)

1. a kind of sanitary napkin coats therebetween including surface layer, leakproof bottom film and by the surface layer and the leakproof bottom film Absorbed layer, which is characterized in that the absorbed layer includes degreasing cotton pad and high hydroscopic resin layer, and the high hydroscopic resin layer is covered in Degreasing cotton pad towards surface layer surface or be coated on the periphery of degreasing cotton pad, the degreasing cotton pad includes yarn count clathrum or skeleton Layer.

2. sanitary napkin as described in claim 1, which is characterized in that the degreasing cotton pad by 1%~50% regenerated cellulose Fiber and 50%~99% cotton fiber are mixed.

3. sanitary napkin as claimed in claim 2, which is characterized in that the regenerated celulose fibre is viscose, tencel, Lai Sai That, Modal or rich and powerful viscose.

4. sanitary napkin as described in claim 1, which is characterized in that the high hydroscopic resin layer is to contain high hydroscopic resin particle Dust-free paper, or be the dust-free paper containing staple fiber.

5. sanitary napkin as described in claim 1, which is characterized in that the super absorbent resin of the degreasing cotton pad and covering degreasing cotton pad It also include high hydroscopic resin particle between rouge layer.

6. sanitary napkin as described in claim 1, which is characterized in that surface and cladding degreasing of the degreasing cotton pad towards surface layer Between the high hydroscopic resin layer of cotton pad also include high hydroscopic resin particle or high hydroscopic resin dust-free paper, the high hydroscopic resin without Contain high hydroscopic resin particle and/or staple fiber in dirt paper.

7. sanitary napkin as described in claim 1, which is characterized in that the surface layer is punching hot-wind nonwoven cloth surface layer or Three Dimensional Thermal Wind non-woven fabrics surface layer.

8. sanitary napkin as claimed in claim 7, which is characterized in that the three-dimensional hot-wind nonwoven cloth surface layer and cladding degreasing cotton pad High hydroscopic resin layer between further include high hydroscopic resin dust-free paper, contain high hydroscopic resin in the high hydroscopic resin dust-free paper Particle and/or staple fiber.

9. sanitary napkin as claimed in claim 7, which is characterized in that between the punching hot-wind nonwoven cloth surface layer and absorbed layer also Including hot wind guide layer.

10. sanitary napkin as claimed in claim 9, which is characterized in that the hot wind guide layer and the high of covering degreasing cotton pad are inhaled Further include one layer of high hydroscopic resin dust-free paper between water-resin layer, contains high hydroscopic resin in the high hydroscopic resin dust-free paper Grain and/or staple fiber.