Antibacterial spunlace composite non-woven fabric

Abstract

The antibacterial spunlace composite non-woven fabric comprises an alginate fiber layer and a spunlace composite non-woven fabric layer which are reinforced and compounded through a spunlace phase, and the spunlace composite non-woven fabric layer comprises a polylactic acid fiber layer and an antibacterial fiber layer which are reinforced and compounded through the spunlace phase; the alginate fiber layer is adjacent to the polylactic acid fiber layer. According to the antibacterial spunlace composite non-woven fabric, the used alginate has high moisture absorption performance and good water locking performance, and when the antibacterial spunlace composite non-woven fabric is used as a medical non-woven fabric for wounds, healing of the wounds can be accelerated. And the used antibacterial fiber layer can prevent bacteria from polluting the non-woven fabric.

Description

Technical Field

[0001] This utility model relates to an antibacterial spunlace composite nonwoven fabric, belonging to the technical field of spunlace composite nonwoven fabrics. Background Technology

[0002] Nonwoven fabrics, also known as non-woven textiles, are fabrics formed without spinning or weaving. They are created by orienting or randomly arranging short or long textile fibers to form a web structure, which is then reinforced using mechanical, thermal, or chemical methods. Nonwoven fabrics break through traditional textile principles and feature short processing times, softness, high production speed, high output, low cost, wide applications, and diverse raw material sources. The softness of nonwoven fabrics is widely used in the medical field, such as in medical dressings for wound bandaging. Spunlace nonwoven fabrics, on the other hand, use high-speed washing to entangle the fibers, requiring no additional chemical adhesives; they are reinforced solely by the entanglement between the fibers to form a nonwoven fabric.

[0003] However, wound dressing requires nonwoven fabrics to not only be soft but also possess antibacterial and antiviral properties, and to promote wound healing. Therefore, the development of an antibacterial spunlace composite nonwoven fabric has become a key challenge. Utility Model Content

[0004] The purpose of this invention is to provide an antibacterial spunlace composite nonwoven fabric, in which the alginate fiber layer has good antibacterial and water-absorbing properties, and improves wound healing.

[0005] To solve the above-mentioned technical problems, the purpose of this utility model is achieved as follows:

[0006] The present invention relates to an antibacterial spunlace composite nonwoven fabric, comprising an alginate fiber layer reinforced by a hydrospunlace phase and a spunlace composite nonwoven fabric layer, wherein the spunlace composite nonwoven fabric comprises a polylactic acid fiber layer reinforced by a hydrospunlace phase and an antibacterial fiber layer; the alginate fiber layer and the polylactic acid fiber layer are adjacent to each other.

[0007] Based on the above scheme and as a preferred embodiment of the above scheme: the fibers used in the alginate fiber layer are calcium alginate fiber, copper alginate fiber, zinc alginate fiber or silver alginate fiber.

[0008] Based on the above scheme and as a preferred embodiment of the above scheme: the polylactic acid fiber layer is a polylactic acid short fiber web or a polylactic acid spunbond nonwoven fabric.

[0009] Based on the above scheme and as a preferred embodiment of the above scheme: the antibacterial fiber layer used in the antibacterial fiber layer is FFA-3 antibacterial fiber.

[0010] Based on the above scheme and as a preferred option, a chitosan oligosaccharide modified cellulose fiber layer is provided between the alginate fiber layer and the spunlace composite nonwoven fabric layer.

[0011] The beneficial effects of this invention are as follows: The antibacterial spunlace composite nonwoven fabric involved in this invention uses alginate, which has high moisture absorption and good water-locking properties. When used as a medical nonwoven fabric for wounds, it can accelerate wound healing. Furthermore, the antibacterial fiber layer can prevent bacterial contamination of the nonwoven fabric. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the antibacterial spunlace composite nonwoven fabric involved in Example 1;

[0013] Figure 2 This is a schematic diagram of the antibacterial spunlace composite nonwoven fabric involved in Example 2.

[0014] The markings in the diagram are explained as follows: 1-Alginic acid-linked fiber layer; 2-Polylactic acid fiber layer; 3-Antibacterial fiber layer; 4-Chitosan oligosaccharide-modified cellulose fiber layer. Detailed Implementation

[0015] The present invention will be further described below with reference to the accompanying drawings and specific embodiments.

[0016] Example 1

[0017] Combination Figure 1 This embodiment provides a detailed description. The antibacterial spunlace composite nonwoven fabric involved in this embodiment is characterized by comprising an alginate fiber layer 1 reinforced by a spunlace phase and a spunlace composite nonwoven fabric layer. The spunlace composite nonwoven fabric comprises a polylactic acid fiber layer 2 reinforced by a spunlace phase and an antibacterial fiber layer 3; the alginate fiber layer 1 and the polylactic acid fiber layer 2 are adjacent. Alginate fiber is a functional fiber material with high hygroscopicity, gelling properties, antibacterial properties, and biocompatibility, prepared from alginate as raw material through wet spinning. By adding functional materials such as copper ions, zinc ions, silver ions, and activated carbon, functional alginate fibers with special properties can be obtained, which are widely used in the medical and health fields.

[0018] In this embodiment, the polylactic acid fiber layer 2 and the antibacterial fiber layer 3 are first hydroentangled to form a relatively dense hydroentangled nonwoven fabric. Then, the formed hydroentangled composite nonwoven fabric layer is further hydroentangled with the alginate fiber layer 1. This process prevents the fibers in the polylactic acid fiber layer 2 from being carried into the alginate fiber layer 1 by high-speed water flow, thus ensuring that the alginate fiber layer 1 contains fewer other fibers and does not weaken its effect on wound healing.

[0019] Furthermore, the fibers used in the alginate fiber layer 1 are calcium alginate fibers, copper alginate fibers, zinc alginate fibers, or silver alginate fibers. In this embodiment, zinc alginate fibers are selected.

[0020] Furthermore, the polylactic acid fiber layer 2 is a polylactic acid short fiber web or a polylactic acid spunbond nonwoven fabric. In this embodiment, a polylactic acid short fiber web is selected.

[0021] Furthermore, the antibacterial fiber layer 3 uses FFA-3 antibacterial fiber. FFA-3 antibacterial and deodorizing fiber was provided by the High-Tech Research Center of Henan Academy of Sciences and has broad-spectrum antibacterial properties: it has excellent antibacterial effects against Gram-positive bacteria, Gram-negative bacteria, fungi, and anaerobic bacteria.

[0022] Example 2

[0023] Combination Figure 2 This embodiment will be described in detail below. The antibacterial spunlace composite nonwoven fabric involved in this embodiment differs from that in Embodiment 1 in that a chitosan oligosaccharide-modified cellulose fiber layer 4 is disposed between the alginate fiber layer 1 and the spunlace composite nonwoven fabric layer. The chitosan oligosaccharide-modified cellulose fiber layer 4, in addition to its antibacterial properties, also possesses good water absorption.

[0024] The preferred embodiments of this utility model have been described in detail above. It should be understood that those skilled in the art can make numerous modifications and variations based on the concept of this utility model without creative effort. Therefore, all technical solutions that can be obtained by those skilled in the art based on the concept of this utility model through logical analysis, reasoning, or limited experimentation on the basis of existing technology should be within the scope of protection defined by the claims.

Claims

1. An antibacterial spunlace composite nonwoven fabric, characterized by, The seaweed salt fiber layer (1) and the water jet composite non-woven fabric layer are reinforced and compounded by water jet, and the water jet composite non-woven fabric comprises a polylactic acid fiber layer (2) and an antibacterial fiber layer (3) which are reinforced and compounded by water jet; the seaweed salt fiber layer (1) is adjacent to the polylactic acid fiber layer (2).

2. The antibacterial spunlace composite nonwoven fabric according to claim 1, characterized in that, The fiber used in the seaweed salt fiber layer (1) is calcium alginate fiber, copper alginate fiber, zinc alginate fiber or silver alginate fiber.

3. The antibacterial spunlace composite nonwoven fabric according to claim 1, characterized in that, The polylactic acid fiber layer (2) is a polylactic acid short fiber net or a polylactic acid spun-bonded non-woven fabric.

4. The antibacterial spunlace composite nonwoven fabric according to claim 1, characterized in that, The antibacterial fiber layer (3) uses FFA-3 antibacterial fiber.

5. The antibacterial spunlace composite nonwoven fabric according to any one of claims 1 to 4, characterized in that, A chitosan-modified cellulose fiber layer (4) is arranged between the seaweed salt fiber layer (1) and the water jet composite non-woven fabric layer.

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