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Three-layered composite chitin non-woven fabric, and preparation method and application thereof

A layer-composite, chitin technology, used in textiles and papermaking, chemical instruments and methods, non-woven fabrics, etc., can solve the problems of increasing patient pain, adhesion, and easy adhesion, and achieve excellent breathability, moisture retention, and softness. Effect

Inactive Publication Date: 2011-10-26
CHANGSHU LIXIN NON WOVEN WEAVING
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The non-woven medical dressing obtained by this patent has at least the following shortcomings: first, the effect of chitin is difficult to give full play to, because the patent integrates chitin fiber and silk fiber; second, it is prone to adhesion phenomenon , because although silk fibroin as a polyolefin fiber has excellent softness and strength, when it is in direct contact with the wound skin during use, adhesion will inevitably occur and increase the pain of the patient; Lack of affinity, because the silk fiber in the raw material does not have the effect of sticking to the wound surface

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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  • Three-layered composite chitin non-woven fabric, and preparation method and application thereof
  • Three-layered composite chitin non-woven fabric, and preparation method and application thereof

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] please see figure 1 , figure 1 The chitin three-layer composite non-woven fabric is composed of chitin fiber cloth layer 1, ES fiber cloth layer 2 and viscose fiber cloth layer 3 between chitin fiber cloth layer 1 and ES fiber cloth layer 2. Chitin The fiber cloth layer 1, the ES fiber cloth layer 2 and the viscose fiber cloth layer 3 are bonded together by a needle punching machine commonly used in the non-woven machinery industry. The ES of the ES fiber cloth layer 2 mentioned here is the abbreviation of the English full name "Ethylene-Propylene Side By Side". ES fiber is a kind of polyolefin fiber developed by Japan Zhiso Company. composite fiber. ES fiber is a composite fiber with a two-component skin-core structure. The cortex has a low melting point and excellent flexibility, while the core has a high melting point, high strength, excellent liquid absorption, and good water repellency. The three-layer composite of chitin The preparation method of non-woven fabr...

Embodiment 2

[0033] Only change the fineness and length of the chitin fiber in step A) to 2.5dtex and 45mm respectively, change the grammage of the chitin fiber cloth layer 1 to 30g / ㎡, and change the needling speed to 60 times / min; Change the fineness and length of the ES fiber in step B) to 1.6dtex and 60mm respectively, and change the grammage of ES fiber cloth layer 2 to 50g / ㎡; only change the fineness and length of the viscose fiber in step C) to 3.0dtex and 45㎜, the weight of the viscose fiber cloth layer 3 was changed to 200g / ㎡; the speed of the needle punching machine was changed to 400 times / min, and a chitin three-layer composite with a total weight of 280g / ㎡ was obtained. Non-woven fabric, all the other are with the description to embodiment 1.

Embodiment 3

[0035] Only change the fineness and length of the chitin fiber in step A) to 3.0dtex and 50mm respectively, change the grammage of the chitin fiber cloth layer 1 to 40g / ㎡, and change the needling speed to 80 times / min; Change the fineness and length of the ES fiber in step B) to 2.5dtex and 40mm respectively, and change the grammage of the ES fiber cloth layer 2 to 60g / ㎡; only change the fineness and length of the viscose fiber in step C) to 2.0dtex and 60㎜, the weight of the viscose fiber cloth layer 3 is changed to 210g / ㎡; the speed of the acupuncture machine is changed to 500 times / min, and the chitin three-layer composite with a total weight of 310g / ㎡ is obtained Non-woven fabric, all the other are with the description to embodiment 1.

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Abstract

The invention belongs to the technical field of non-woven fabrics, and relates to a three-layered composite chitin non-woven fabric, a preparation method thereof and an application thereof. The three-layered composite chitin non-woven fabric comprises a chitin fabric layer, an ES fabric layer, and a viscose fabric layer between the two. The chitin fabric layer, the ES fabric layer, and the viscose fabric layer are combined into an integral whole. The three-layered composite chitin non-woven fabric has advantages of good flexibility, good ventilating and moisturizing capacities, good haemostasis and tissue fluid absorption capacities, and ideal wound curing effect. Also, the fabric can be compactly applied on a wound. With the fabric, tissue fluid can be prevented from overflowing, and adhesion between a wounded area and the fiber can be avoided. With the method provided by the present invention, the preparation of the fiber can be achieved by a traditional non-woven machine, and no special apparatus is required. With the method, comprehensive embodiments of the technical effects of the three-layered composite chitin non-woven fabric can be ensured. According to the application provided by the present invention, the technical effects of the three-layered composite chitin non-woven fabric can be embodied in medical treatments.

Description

technical field [0001] The invention belongs to the technical field of non-woven fabrics, and in particular relates to a chitin three-layer composite non-woven fabric, and also relates to a preparation method and application of the composite non-woven fabric. Background technique [0002] Chitin, also known as chitin or chitosan, is a natural amino polysaccharide macromolecule substance with a chemical structure similar to fiber. It is also the only edible animal fiber containing cations in the world. It is widely found in insects, crustaceans such as In hard shells such as marine shrimp and crab shells and in the cell walls of fungi. With the continuous deepening of research on chitin and its derivatives, it was found that chitin can inhibit cancer, liver disease and diabetes, lower cholesterol, enhance human immunity and prevent aging and a series of effects. [0003] In recent years, chitin and its derivatives have been widely used in the medical and health fields in dev...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B32B9/04B32B27/02B32B27/12D04H1/42D04H1/46A61F13/02
Inventor 周立新
Owner CHANGSHU LIXIN NON WOVEN WEAVING
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