Degradable spun-bonded non-woven fabric suitable for incontinence towel

Abstract

The utility model relates to the technical field of incontinence towels, in particular to a degradable spunbond non-woven fabric suitable for incontinence towels, which comprises a non-woven fabric bottom membrane and a non-woven fabric surface layer arranged at the top of the non-woven fabric bottom membrane, a hydrophilic layer is arranged at the top of the non-woven fabric bottom membrane, and air holes and a hydrophilic coating are respectively arranged at the top of the hydrophilic layer. According to the degradable spun-bonded non-woven fabric suitable for the incontinence towel, by means of the arrangement of the degradable spun-bonded non-woven fabric suitable for the incontinence towel, by means of the structural design of the PLA degradation layer and the bonding layer, under the combination of the PLA degradation layer and the bonding layer, the degradation effect of the non-woven fabric bottom film can be improved, and then follow-up treatment is facilitated.

Description

Technical Field

[0001] This utility model relates to the field of incontinence towel technology, specifically to a biodegradable spunbond nonwoven fabric suitable for incontinence towels. Background Technology

[0002] Nonwoven fabric, also known as non-woven cloth, needle-punched cotton, needle-punched nonwoven fabric, etc., is made of polyester fiber, or PET (polyester fiber for short), and is produced through a needle-punching process. It can be made in different thicknesses, feels, and hardnesses. Nonwoven fabric has the characteristics of being moisture-proof, breathable, flexible, lightweight, flame-retardant, non-toxic, odorless, inexpensive, and recyclable. It can be used in various industries, such as sound insulation, heat insulation, heating elements, masks, clothing, medical, and filling materials. According to the production process, nonwoven fabric can be divided into spunlace nonwoven fabric, thermally bonded nonwoven fabric, air-laid nonwoven fabric, wet-laid nonwoven fabric, spunbond nonwoven fabric, meltblown nonwoven fabric, needle-punched nonwoven fabric, stitch-bonded nonwoven fabric, and hydrophilic nonwoven fabric.

[0003] Currently used biodegradable spunbond nonwoven fabrics for incontinence napkins are mostly made of polypropylene (PP) or polyethylene (PE). These materials have poor degradation effects, which can easily cause environmental pollution and make subsequent treatment difficult. At the same time, most of these nonwoven fabrics do not have the function of uniformly guiding liquids, which can lead to local liquid retention and reduce the practical effect of incontinence napkins.

[0004] In summary, this utility model solves the problems in the background art by designing a biodegradable spunbond nonwoven fabric suitable for incontinence towels. Utility Model Content

[0005] The purpose of this invention is to provide a biodegradable spunbond nonwoven fabric suitable for incontinence towels, so as to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] A biodegradable spunbond nonwoven fabric suitable for incontinence napkins includes a nonwoven base film and a nonwoven surface layer disposed on top of the nonwoven base film. The top of the nonwoven base film is provided with a hydrophilic layer, and the top of the hydrophilic layer is provided with air pores and a hydrophilic coating. The top surface of the nonwoven surface layer is provided with a flow channel.

[0008] The nonwoven base film includes a PLA degradation layer and a bonding layer.

[0009] As a preferred embodiment of this utility model, the guide channel is in the shape of a rhomboid mesh structure, and the width of the guide channel is 0.2-0.5mm.

[0010] As a preferred embodiment of this utility model, there are multiple vent holes, which are equidistantly distributed on the left and right sides of the top surface of the hydrophilic layer, and the inner wall of the bottom end of the vent holes extends to the bottom surface of the hydrophilic layer.

[0011] As a preferred embodiment of this invention, the hydrophilic coating is made of chitosan material.

[0012] As a preferred embodiment of this utility model, the bonding layer is composed of a composite material of polypropylene and PBAT.

[0013] As a preferred embodiment of this utility model, the bottom of the nonwoven fabric surface layer is in fixed contact with the top surface of the hydrophilic coating.

[0014] As a preferred embodiment of this utility model, the PLA degradation layer, bonding layer and hydrophilic layer are integrally formed by hot melt bonding.

[0015] Compared with the prior art, the beneficial effects of this utility model are:

[0016] 1. In this utility model, a biodegradable spunbond nonwoven fabric suitable for incontinence towels is provided. By utilizing the structural design of the PLA degradation layer and the bonding layer, the degradation effect of the nonwoven fabric base film can be improved under the combination of the PLA degradation layer and the bonding layer, thus facilitating subsequent processing.

[0017] 2. In this utility model, a biodegradable spunbond nonwoven fabric suitable for incontinence pads is provided. The structure design of the hydrophilic layer and the diffusing groove, with the diamond mesh of the diffusing groove, can accelerate the penetration of liquid through capillary effect, thereby effectively avoiding the occurrence of local liquid retention and ensuring the practical effect of the incontinence pad. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0019] Figure 2 This is an exploded structural diagram of the hydrophilic layer and hydrophilic coating of this utility model;

[0020] Figure 3 This is an exploded structural diagram of the nonwoven fabric base film of this utility model.

[0021] In the diagram: 1. Non-woven fabric base film; 2. Non-woven fabric surface layer; 201. Channeling groove; 3. Hydrophilic layer; 301. Breathable pores; 302. Hydrophilic coating; 4. PLA degradation layer; 5. Bonding layer. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.

[0023] To facilitate understanding of this utility model, a more comprehensive description of the utility model will be given below with reference to the accompanying drawings, and several embodiments of the utility model will be provided. However, the utility model can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the utility model more thorough and complete.

[0024] It should be noted that when an element is referred to as being "fixed to" another element, it can be directly on the other element or there may be an intervening element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or there may be an intervening element. The terms "vertical," "horizontal," "left," "right," and similar expressions used in this document are for illustrative purposes only.

[0025] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0026] For examples, please refer to Figure 1-3 This utility model provides a technical solution:

[0027] A biodegradable spunbond nonwoven fabric suitable for incontinence napkins includes a nonwoven base film 1 and a nonwoven surface layer 2 disposed on top of the nonwoven base film 1. A hydrophilic layer 3 is disposed on the top of the nonwoven base film 1. The top of the hydrophilic layer 3 is provided with air vents 301 and a hydrophilic coating 302. A guide groove 201 is provided on the top surface of the nonwoven surface layer 2.

[0028] Specifically, the guide channel 201 has a diamond-shaped grid structure and a channel width of 0.2-0.5mm. There are multiple vent holes 301, which are equidistantly distributed on the top surface of the hydrophilic layer 3. The inner wall of the bottom end of the vent holes 301 extends to the bottom surface of the hydrophilic layer 3. The hydrophilic coating 302 is made of chitosan material.

[0029] In this embodiment, the guide channel 201 is mainly used to guide the liquid so that it can quickly penetrate the nonwoven fabric surface layer 2. The hydrophilic coating 302 and the vent 301 can improve the absorption rate of the hydrophilic layer 3 on the liquid, thereby preventing the liquid from stagnating.

[0030] In this embodiment, please refer to Figure 1 and Figure 3 The nonwoven base film 1 includes a PLA degradation layer 4 and a bonding layer 5;

[0031] Specifically, the bonding layer 5 is made of polypropylene and PBAT composite material, the bottom of the non-woven fabric layer 2 is in fixed contact with the top surface of the hydrophilic coating 302, and the PLA degradation layer 4, the bonding layer 5 and the hydrophilic layer 3 are integrally formed by hot melt bonding.

[0032] In this embodiment, the bonding layer 5 is mainly used to make the PLA degradation layer 4 and the hydrophilic layer 3 come into contact to prevent interlayer peeling. The PLA degradation layer 4 can improve the degradation rate of the nonwoven bottom film 1 and meet environmental protection requirements.

[0033] The working process of this utility model is as follows: When using a biodegradable spunbond nonwoven fabric suitable for incontinence towels, the guide channel 201 guides the liquid, and the hydrophilic coating 302 allows the liquid to quickly penetrate the nonwoven fabric surface layer 2, effectively preventing local liquid stagnation. The PLA degradation layer 4 and the bonding layer 5 accelerate the degradation rate of the nonwoven fabric bottom film 1, avoiding environmental pollution caused by the spunbond nonwoven fabric and meeting the needs of users.

[0034] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A biodegradable spunbond nonwoven fabric suitable for incontinence pads, comprising a nonwoven base film (1) and a nonwoven surface layer (2) disposed on top of the nonwoven base film (1), characterized in that: The top of the nonwoven fabric bottom film (1) is provided with a hydrophilic layer (3), and the top of the hydrophilic layer (3) is provided with a breathable hole (301) and a hydrophilic coating (302), and the top surface of the nonwoven fabric surface layer (2) is provided with a guide groove (201). The nonwoven base film (1) includes a PLA degradation layer (4) and a bonding layer (5).

2. The biodegradable spunbond nonwoven fabric suitable for incontinence pads according to claim 1, characterized in that: The guide channel (201) has a diamond-shaped grid structure and the width of the guide channel (201) is 0.2-0.5mm.

3. The biodegradable spunbond nonwoven fabric suitable for incontinence pads according to claim 1, characterized in that: There are multiple vent holes (301), and the multiple vent holes (301) are distributed equidistantly on the top surface of the hydrophilic layer (3), and the inner wall of the bottom end of the vent holes (301) extends to the bottom surface of the hydrophilic layer (3).

4. The biodegradable spunbond nonwoven fabric suitable for incontinence pads according to claim 1, characterized in that: The hydrophilic coating (302) is made of chitosan material.

5. The biodegradable spunbond nonwoven fabric suitable for incontinence pads according to claim 1, characterized in that: The bonding layer (5) is composed of a composite material of polypropylene and PBAT.

6. The biodegradable spunbond nonwoven fabric suitable for incontinence pads according to claim 1, characterized in that: The bottom of the nonwoven fabric surface layer (2) is in fixed contact with the top surface of the hydrophilic coating (302).

7. The biodegradable spunbond nonwoven fabric suitable for incontinence pads according to claim 1, characterized in that: The PLA degradation layer (4), bonding layer (5) and hydrophilic layer (3) are integrally formed by hot melt bonding.

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