Hydrophilic spun-bonded composite non-woven fabric

Abstract

The hydrophilic spun-bonded composite non-woven fabric comprises a hydrophilic spun-bonded non-woven fabric layer, a polylactic acid spunlace non-woven fabric layer, a water-absorbing non-woven fabric layer and a waterproof breathable film which are compounded with one another, the polylactic acid spunlace non-woven fabric layer is formed by spunlace reinforcement of a polylactic acid fiber net in a parallel lapping mode, and polylactic acid fiber comprises a fiber body, a polydopamine layer and a nano antibacterial particle layer; and the nano antibacterial particle layer uses nano zinc oxide particles or nano antibacterial silver ions. According to the hydrophilic spunbond composite non-woven fabric, the dispersing speed of body fluid can be increased by using the hydrophilic spunbond non-woven fabric, the polylactic acid spunlace non-woven fabric can improve the flow guide of the body fluid in a parallel lapping mode, and the non-woven fabric has good hygroscopicity due to the water-absorbing non-woven fabric. And the non-woven fabric does not leak due to the waterproof moisture-permeable film. And nano antibacterial particles used in the polylactic acid spunlace non-woven fabric enable the composite non-woven fabric to have an antibacterial effect.

Description

Technical Field

[0001] The utility model relates to a hydrophilic spunbonded composite non-woven fabric, belonging to the technical field of non-woven fabrics. Background Art

[0002] Non-woven fabrics, also known as non-woven fabrics, are fabrics that do not require spinning or weaving. Instead, they are made by aligning or randomly arranging short textile fibers or filaments to form a web structure, which is then reinforced using mechanical, thermal bonding, or chemical methods. They have a wide range of applications in medical textiles, clothing, sanitary disposable products, and other fields. Conventional spunbond non-woven fabrics are made from chemical synthetic fibers. When used as sanitary products such as diapers and sanitary napkins, their poor hydrophilicity slows the infiltration of body fluids, causing discomfort to the user. Therefore, the challenge of preparing a hydrophilic spunbond composite non-woven fabric with good hydrophilicity has become a challenge. Utility Model Content

[0003] The utility model aims to provide a hydrophilic spunbonded composite nonwoven fabric with good hydrophilicity and hygroscopicity.

[0004] In order to solve the above technical problems, the purpose of this utility model is achieved as follows:

[0005] The utility model relates to a hydrophilic spunbond composite nonwoven fabric, comprising a composite hydrophilic spunbond nonwoven fabric layer, a polylactic acid spunlace nonwoven fabric layer, a water-absorbent nonwoven fabric layer and a waterproof breathable film;

[0006] The polylactic acid spunlace nonwoven fabric layer is formed by hydroentanglement of a parallel-laid polylactic acid fiber web. The polylactic acid fiber includes a fiber body, a polydopamine layer, and a nano-antibacterial particle layer. The nano-antibacterial particle layer uses nano-zinc oxide particles or nano-antibacterial silver ions.

[0007] On the basis of the above solution and as a preferred solution of the above solution: the absorbent non-woven fabric layer is super absorbent fiber dust-free paper, super absorbent fiber non-woven fabric or wood pulp dust-free paper.

[0008] On the basis of the above solution and as a preferred solution of the above solution: the hydrophilic spunbond nonwoven fabric layer is provided with water-permeable holes.

[0009] On the basis of the above solution and as a preferred solution of the above solution: the hydrophilic spunbond non-woven layer includes a spunbond non-woven fabric and a hydrophilic agent coated on the surface of the spunbond non-woven fabric.

[0010] On the basis of the above solution and as a preferred solution of the above solution: the hydrophilic spunbond non-woven fabric layer is made of parallel polypropylene filaments reinforced by water entanglement.

[0011] On the basis of the above solution and as a preferred solution of the above solution: the waterproof and breathable membrane is a TPU microporous membrane or a PTFE microporous membrane.

[0012] The beneficial effects of the present invention are as follows: the hydrophilic spunbond composite nonwoven fabric of the present invention can increase the speed at which body fluids disperse, and the parallel laying method of the polylactic acid spunlace nonwoven fabric can improve the diversion of body fluids. The water-absorbent nonwoven fabric provides the nonwoven fabric with good moisture absorption. The waterproof and breathable film prevents leakage, and the nano-antibacterial particles used in the polylactic acid spunlace nonwoven fabric provide the composite nonwoven fabric with antibacterial properties. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 1 is a schematic structural diagram of the hydrophilic spunbond composite nonwoven fabric involved in Example 1;

[0014] Figure 2 1 is a schematic diagram of the cross-sectional structure of the polylactic acid fiber involved in Example 1;

[0015] Figure 3 It is a schematic structural diagram of the hydrophilic spunbond composite nonwoven fabric involved in Example 2.

[0016] The markings in the figure are as follows: 1-hydrophilic spunbond non-woven fabric layer; 2-polylactic acid spunlace non-woven fabric layer; 3-water-absorbent non-woven fabric layer; 4-waterproof and breathable membrane; 5-water-repellent spunbond non-woven fabric layer; 11-fiber body; 12-polydopamine layer; 13-nano-antibacterial particles. DETAILED DESCRIPTION

[0017] The present invention will be further described below with reference to the accompanying drawings and specific embodiments.

[0018] Example 1

[0019] Combine Figure 1 and Figure 2 This embodiment is described in detail. The hydrophilic spunbond composite nonwoven fabric of this embodiment comprises a composite hydrophilic spunbond nonwoven fabric layer 1, a polylactic acid spunlace nonwoven fabric layer 2, a water-absorbent nonwoven fabric layer 3, and a waterproof breathable membrane 4. The polylactic acid spunlace nonwoven fabric 2 is formed from a parallel-laid polylactic acid fiber web reinforced by hydroentanglement. The polylactic acid fibers comprise a fiber body 11, a polydopamine layer 12, and a nano-antibacterial particle layer 13. The nano-antibacterial particle layer 13 comprises nano-zinc oxide particles or nano-antibacterial silver ions.

[0020] The use of the hydrophilic spunbond nonwoven fabric layer 2 can accelerate the diffusion rate of body fluids thereon, thereby allowing the body fluids to penetrate quickly. The polylactic acid spunlace nonwoven fabric layer 2 can also diffuse quickly due to its parallel laying method. The water-absorbent nonwoven fabric layer 3 has good water absorption. In addition, a layer of polylactic acid spunlace nonwoven fabric layer 2 is provided between the hydrophilic spunbond nonwoven fabric layer 1 and the water-absorbent nonwoven fabric layer 3 to prevent the absorbed body fluids from reverse osmosis. The coordinated nano-antibacterial particle layer 13 can give the composite nonwoven fabric a good antibacterial effect, preventing the growth of bacteria. Nano zinc oxide particles are selected as the nano-antibacterial particle layer 13.

[0021] Furthermore, the absorbent non-woven fabric layer 3 is super absorbent fiber dust-free paper, super absorbent fiber non-woven fabric or wood pulp dust-free paper. In this embodiment, super absorbent fiber non-woven fabric is selected. Super absorbent fiber is a new type of fiber with a large liquid absorption capacity and a fast liquid absorption speed. It can absorb water, urine, body fluids, blood and other liquids. It absorbs liquids differently from the physical adsorption of ordinary fibers. Instead, it absorbs liquids through the principle of chemical absorption, expands itself, and seals the liquid in the fiber, which is difficult to squeeze out. Therefore, it has a strong liquid retention capacity. In this embodiment, super absorbent fiber non-woven fabric is selected. Super absorbent fiber dust-free paper or super absorbent fiber non-woven fabric are purchased from Nantong Jiangchao Textile Technology Co., Ltd.

[0022] Furthermore, the hydrophilic spunbond nonwoven fabric layer 1 is provided with water-permeable holes, which can quickly guide the liquid to the polylactic acid spunlace nonwoven fabric layer 2. The polylactic acid spunlace nonwoven fabric layer 2 is also provided with water-permeable holes.

[0023] Furthermore, the hydrophilic spunbond nonwoven layer 1 comprises a spunbond nonwoven fabric and a hydrophilic agent coated on the surface of the spunbond nonwoven fabric. The hydrophilic spunbond nonwoven layer 1 is formed by hydroentangling parallel polypropylene filaments. The parallel polypropylene filaments have a good flow-guiding effect.

[0024] Furthermore, the waterproof breathable membrane 4 is a TPU microporous membrane or a PTFE microporous membrane. In this embodiment, the TPU microporous membrane is selected.

[0025] Example 2

[0026] Combine Figure 3 This embodiment is a hydrophilic spunbond composite nonwoven fabric, which differs from the first embodiment in that a water-repellent spunbond nonwoven fabric layer 5 is provided between the water-absorbent nonwoven fabric layer 3 and the waterproof breathable membrane 4, specifically a PP water-repellent spunbond nonwoven fabric.

[0027] The above describes in detail the preferred embodiments of the present invention. It should be understood that those skilled in the art can make numerous modifications and variations based on the concepts of the present invention without inventive effort. Therefore, any technical solutions that can be derived by those skilled in the art based on the concepts of the present invention through logical analysis, reasoning, or limited experimentation based on the existing technology should be within the scope of protection defined by the claims.

Claims

1. A hydrophilic spunbond composite nonwoven fabric, characterized in that: It comprises a composite hydrophilic spunbond nonwoven fabric layer (1), a polylactic acid spunlace nonwoven fabric layer (2), a water-absorbent nonwoven fabric layer (3) and a waterproof breathable membrane (4); The polylactic acid spunlace nonwoven fabric layer (2) is formed by hydroentangling a polylactic acid fiber web in a parallel laying manner, wherein the polylactic acid fiber comprises a fiber body (11), a polydopamine layer (12) and a nano antibacterial particle layer (13); the nano antibacterial particle layer (13) uses nano zinc oxide particles or nano antibacterial silver ions.

2. The hydrophilic spunbond composite nonwoven fabric according to claim 1, characterized in that: The water-absorbent non-woven fabric layer (3) is super absorbent fiber dust-free paper, super absorbent fiber non-woven fabric or wood pulp dust-free paper.

3. The hydrophilic spunbond composite nonwoven fabric according to claim 1, characterized in that: The hydrophilic spunbond nonwoven fabric layer (1) is provided with water-permeable holes.

4. The hydrophilic spunbond composite nonwoven fabric according to claim 1, characterized in that: The hydrophilic spunbond nonwoven fabric layer (1) comprises a spunbond nonwoven fabric and a hydrophilic agent coated on the surface of the spunbond nonwoven fabric.

5. The hydrophilic spunbond composite nonwoven fabric according to claim 1, characterized in that: The hydrophilic spunbond nonwoven fabric layer (1) is made of parallel polypropylene filaments reinforced by water entanglement.

6. The hydrophilic spunbond composite nonwoven fabric according to claim 1, characterized in that: The waterproof and breathable membrane (4) is a TPU microporous membrane or a PTFE microporous membrane.

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