Antibacterial spunlace nonwoven fabric

Abstract

The present invention discloses an antibacterial spunlace nonwoven fabric, comprising a composite polylactic acid spunlace nonwoven fabric layer, a tea fiber spunlace nonwoven fabric layer, a bamboo fiber spunlace nonwoven fabric layer, a waterproof and breathable film, and a polyester fiber spunlace nonwoven layer; the surface of the polylactic acid fiber in the polylactic acid spunlace nonwoven fabric layer is attached with silane coupling agent modified nano zinc oxide; the surface of the bamboo fiber in the bamboo fiber spunlace nonwoven fabric layer is attached with antibacterial microcapsules; the fiber net in the polylactic acid spunlace nonwoven fabric layer includes a parallel-laid web layer and a cross-laid web layer, and the cross-laid web layer is located on the side close to the tea fiber spunlace nonwoven fabric layer. The use of polylactic acid fiber has a good skin-friendly effect, and its hygroscopicity is poor, which can keep the surface dry, and the nano zinc oxide attached to the surface has an antibacterial effect. The use of tea fiber and bamboo fiber can provide antibacterial effect and hygroscopic effect. The waterproof and breathable film can prevent the adsorbed body fluid from flowing to the other side. The polyester spunlace nonwoven fabric can improve the overall strength.

Description

Technical Field

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

[0002] The principle of hydroentanglement to reinforce the fiber web is to use a high-pressure generated multiple fine water jets - a hydroentanglement machine to spray the fiber web. After the water jet passes through the fiber web, it is supported by the rebound of the net curtain and interspersed with the fiber web again. As a result, the fibers in the fiber web are displaced, interspersed, entangled and held together under the hydraulic action of high-speed water jets in different directions, thereby reinforcing the fiber web. Spunlace non-woven fabrics are suitable for diapers, sanitary napkins and other sanitary products due to their low fiber weight and soft feel. As sanitary products absorb body fluids discharged by the human body during use and are prone to breed bacteria, how to prepare an antibacterial spunlace non-woven fabric has become a problem to be solved. Utility Model Content

[0003] The utility model aims to provide an antibacterial spunlace nonwoven fabric having an antibacterial effect.

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

[0005] The present invention relates to an antibacterial spunlace nonwoven fabric, comprising a composite polylactic acid spunlace nonwoven fabric layer, a tea fiber spunlace nonwoven fabric layer, a bamboo fiber spunlace nonwoven fabric layer, a waterproof and breathable film and a polyester fiber spunlace nonwoven layer;

[0006] The surface of the polylactic acid fibers in the polylactic acid spunlace nonwoven fabric layer is attached with silane coupling agent-modified nano zinc oxide; the surface of the bamboo fibers in the bamboo fiber spunlace nonwoven fabric layer is attached with antibacterial microcapsules;

[0007] The fiber web in the polylactic acid spunlace nonwoven fabric layer includes a parallel-laid layer and a cross-laid layer, and the cross-laid layer is located on a side close to the tea fiber spunlace nonwoven fabric layer.

[0008] On the basis of the above scheme and as a preferred scheme of the above scheme: the antibacterial microcapsule comprises a core material and a wall material, the wall material is β-cyclodextrin, and the core material is forsythia oil.

[0009] On the basis of the above scheme and as a preferred scheme of the above scheme: the cross-section of the polylactic acid fibers in the cross-laid layer in the polylactic acid spunlace non-woven fabric layer is Y-shaped, cross-shaped or dumbbell-shaped.

[0010] On the basis of the above scheme and as a preferred scheme of the above scheme: the waterproof and breathable membrane is a polylactic acid waterproof and breathable membrane.

[0011] On the basis of the above scheme and as a preferred scheme of the above scheme: the surface of the tea fibers in the tea fiber spunlace non-woven fabric layer is attached with silane coupling agent modified nano titanium dioxide.

[0012] On the basis of the above scheme and as a preferred scheme of the above scheme: a super absorbent fiber layer is arranged between the bamboo fiber spunlace non-woven fabric layer and the waterproof and breathable membrane.

[0013] The beneficial effects of the utility model are as follows: the antibacterial spunlace nonwoven fabric of the utility model has good skin-friendly effect, and due to its poor hygroscopicity, the surface can be kept dry, and the modified nano zinc oxide attached to the surface has an antibacterial effect. The use of tea fiber spunlace nonwoven fabric and bamboo fiber spunlace nonwoven fabric can provide antibacterial effect and hygroscopic effect. The waterproof and breathable membrane used can prevent the adsorbed body fluid from flowing to the other side. The polyester spunlace nonwoven fabric can improve the overall strength. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 Schematic diagram of the structure of the antibacterial spunlace nonwoven fabric involved in Example 1;

[0015] Figure 2 It is a schematic diagram of the structure of the antibacterial spunlace nonwoven fabric involved in the second embodiment.

[0016] The markings in the figure are as follows: 1-polylactic acid spunlace non-woven fabric layer; 2-tea fiber spunlace non-woven fabric layer; 3-bamboo fiber spunlace non-woven fabric layer; 4-waterproof and breathable membrane; 5-polyester fiber spunlace non-woven layer; 6-super absorbent fiber layer. DETAILED DESCRIPTION

[0017] The utility model is further described below in conjunction with the accompanying drawings and specific embodiments.

[0018] Embodiment 1

[0019] Combination Figure 1 The antibacterial spunlace nonwoven fabric involved in this embodiment comprises a composite polylactic acid spunlace nonwoven fabric layer 1, a tea fiber spunlace nonwoven fabric layer 2, a bamboo fiber spunlace nonwoven fabric layer 3, a waterproof and breathable membrane 4 and a polyester fiber spunlace nonwoven layer 5.

[0020] Polylactic acid fiber is made from starch-containing agricultural products such as corn, wheat, and beets. After fermentation to generate lactic acid, it is made by polycondensation and melt spinning. Polylactic acid fiber is a synthetic fiber whose raw materials can be planted and is easy to plant, and whose waste can be naturally degraded in nature. Polylactic acid fiber has poor hygroscopicity, and the polylactic acid fiber spunlace non-woven fabric layer 1 is arranged on the surface to keep it dry. And the fiber web in the polylactic acid spunlace non-woven fabric layer 1 includes parallel laying and cross laying layers, and the cross laying layer is located on the side close to the tea fiber spunlace non-woven fabric layer 2. The parallel-laid polylactic acid fibers are arranged in parallel, thereby improving their flow-guiding effect. The cross section of the polylactic acid fibers in the parallel-laid layer is circular.

[0021] The surface of the polylactic acid fiber in the polylactic acid spunlace nonwoven fabric layer 1 is attached with silane coupling agent modified nano zinc oxide. The silane coupling agent modified nano zinc oxide can improve the bonding strength with the polylactic acid fiber, and is not easy to fall off from the surface of the polylactic acid fiber after long-term storage, and the nano zinc oxide has a good antibacterial effect.

[0022] The surface of the bamboo fiber in the bamboo fiber spunlace nonwoven fabric layer 3 is attached with antibacterial microcapsules; the antibacterial microcapsules include a core material and a wall material, the wall material is β-cyclodextrin, and the core material is forsythia oil. The bamboo fiber itself has an antibacterial effect, and the nano antibacterial microcapsules are attached to its surface, thereby further improving its antibacterial and antibacterial effect.

[0023] Furthermore, the cross-section of the polylactic acid fibers in the cross-laid layer of the polylactic acid spunlace nonwoven fabric layer 1 is Y-shaped, cross-shaped or dumbbell-shaped. In this embodiment, the Y-shape is selected. The surface of the polylactic acid fibers with the above-mentioned special-shaped cross-section has grooves, which guide the liquid in the parallel-laid layer to the tea fiber spunlace nonwoven fabric layer 2 through the wicking effect.

[0024] Furthermore, the waterproof and breathable membrane 4 is a polylactic acid waterproof and breathable membrane.

[0025] Furthermore, the surface of the tea fiber in the tea fiber spunlace nonwoven fabric layer 2 is attached with silane coupling agent modified nano titanium dioxide. Tea fiber is a new type of functional viscose fiber obtained by naturally extracting effective substances from tea leaves and blending them with spinning solution during the spinning process. The natural extracts from tea leaves are evenly distributed inside the tea fiber using a unique process. The main components of tea are tea polyphenols, caffeine, lipopolysaccharide, etc. Silane coupling agent modified nano titanium dioxide also has an antibacterial function, thereby improving the antibacterial effect of the entire nonwoven fabric.

[0026] Embodiment 2

[0027] Combination Figure 2The antibacterial spunlace nonwoven fabric of this embodiment is different from the embodiment in that a super absorbent fiber layer 6 is provided between the bamboo fiber spunlace nonwoven fabric layer 3 and the waterproof and breathable membrane 4, and the super absorbent fiber can absorb 15 times its own water.

[0028] The preferred specific embodiments of the utility model are described in detail above. It should be understood that ordinary technicians in this field can make many modifications and changes based on the concept of the utility model without creative work. Therefore, all technical solutions that can be obtained by technicians in this technical field based on the concept of the utility model through logical analysis, reasoning or limited experiments on the basis of the existing technology should be within the scope of protection determined by the claims.

Claims

1. An antibacterial spunlace nonwoven fabric, characterized in that: It comprises a composite polylactic acid spunlace nonwoven fabric layer (1), a tea fiber spunlace nonwoven fabric layer (2), a bamboo fiber spunlace nonwoven fabric layer (3), a waterproof and breathable film (4) and a polyester fiber spunlace nonwoven layer (5); The surface of the polylactic acid fibers in the polylactic acid spunlace non-woven fabric layer (1) is attached with silane coupling agent-modified nano zinc oxide; the surface of the bamboo fibers in the bamboo fiber spunlace non-woven fabric layer (3) is attached with antibacterial microcapsules; The fiber web in the polylactic acid spunlace nonwoven fabric layer (1) comprises a parallel-laid layer and a cross-laid layer, and the cross-laid layer is located on a side close to the tea fiber spunlace nonwoven fabric layer (2).

2. The antibacterial spunlace nonwoven fabric according to claim 1, characterized in that: The antibacterial microcapsule comprises a core material and a wall material, wherein the wall material is beta-cyclodextrin and the core material is forsythia oil.

3. The antibacterial spunlace nonwoven fabric according to claim 1, characterized in that: The cross-section of the polylactic acid fibers in the cross-laid layer of the polylactic acid spunlace non-woven fabric layer (1) is in the shape of a Y, a cross or a dumbbell.

4. The antibacterial spunlace nonwoven fabric according to claim 1, characterized in that: The waterproof and breathable film (4) is a polylactic acid waterproof and breathable film.

5. The antibacterial spunlace nonwoven fabric according to claim 1, characterized in that: The surfaces of the tea fibers in the tea fiber spunlace non-woven fabric layer (2) are attached with nano-titanium dioxide modified by a silane coupling agent.

6. The antibacterial spunlace nonwoven fabric according to claim 1, characterized in that: A super absorbent fiber layer (6) is provided between the bamboo fiber spunlace non-woven fabric layer (3) and the waterproof and breathable membrane (4).

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