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A kind of collagen short fiber regenerated skin and its preparation process

A technology of short fiber and regenerated leather, which is applied in the field of fiber and fiber product processing, can solve the problems of uneven surface, low cost of raw material utilization, poor tear strength, etc. Effect of surface area and strength improvement

Active Publication Date: 2020-07-03
顾勇杰
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In view of the deficiencies in the prior art above, the purpose of the present invention is to provide a collagen short fiber regenerated leather and its preparation process. The present invention improves the bonding force between the short fibers by adding a plasma treatment step in the pretreatment, and solves the problem of product tearing. Insufficient strength and uneven surface, at the same time, high-pressure spunlace weaving can be satisfied, and high-weight, high-quality regenerated leather products can be obtained. The preparation process of the present invention has the characteristics of high raw material utilization rate and low cost

Method used

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  • A kind of collagen short fiber regenerated skin and its preparation process
  • A kind of collagen short fiber regenerated skin and its preparation process
  • A kind of collagen short fiber regenerated skin and its preparation process

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Experimental program
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Effect test

Embodiment 1

[0030] Embodiment 1 adopts the following steps to realize the present invention:

[0031] 1. Raw material preparation: Mix 97.5% of short collagen fibers with a length of 0.8-1.2 mm and 2.5% of ultra-long kraft fibers according to the mass ratio, and use them as fiber raw materials;

[0032] 2. Liquid phase dispersion and pretreatment: disperse fiber raw materials into water, adjust the concentration to 1.2%, then perform plasma treatment, and then adjust the concentration with water to obtain fiber slurry with a concentration of 0.15-0.20%; the plasma treatment atmosphere used for O 2 / CO 2 Mixed atmosphere, O 2 Flow rate 0.5-1.0L / min, O 2 with CO 2 The ratio of the flow rate is 1:6; the plasma treatment time is 60s; the plasma treatment temperature is not higher than 50°C;

[0033] 3. Continuous dehydration: Lead the fiber slurry to the forming net, driven by the forming net at a net speed of 22m / min, carry out gravity dehydration while forming a fiber net, and then int...

Embodiment 2

[0035] Embodiment 2 adopts the following steps to realize the present invention:

[0036] 1. Raw material preparation: Mix 98.5% of short collagen fibers with a length of 0.8-1.2 mm and 1.5% of ultra-long kraft fibers according to the mass ratio, and use them as fiber raw materials;

[0037] 2. Liquid phase dispersion and pretreatment: Disperse the fiber raw material in water, adjust the concentration to 1.5%, then perform plasma treatment, and then adjust the concentration with water to obtain a fiber slurry with a concentration of 0.10-0.15%; the plasma treatment atmosphere used for O 2 / CO 2 Mixed atmosphere, O 2 Flow rate 0.5-1.0L / min, O 2 with CO 2 The ratio of the flow rate is 1:6; the plasma treatment time is 60s; the plasma treatment temperature is not higher than 50°C;

[0038] 3. Continuous dehydration: Lead the fiber slurry to the forming net, driven by the forming net at a net speed of 22m / min, carry out gravity dehydration while forming a fiber net, and then ...

Embodiment 3

[0040] Embodiment 3 Adopt the following steps to realize the present invention:

[0041] 1. Raw material preparation: according to the mass ratio, mix 98% of short collagen fibers with a length of 0.8-1.2mm and 2.0% of ultra-long kraft fibers evenly, and use them as fiber raw materials;

[0042] 2. Liquid phase dispersion and pretreatment: Disperse the fiber raw material in water, adjust the concentration to 1.45%, then conduct plasma treatment, and then adjust the concentration with water to obtain a fiber slurry with a concentration of 0.08-0.12%; the plasma treatment atmosphere used for O 2 / CO 2 Mixed atmosphere, O 2 Flow rate 0.5-1.0L / min, O 2 with CO 2 The ratio of the flow rate is 1:6; the plasma treatment time is 60s; the plasma treatment temperature is not higher than 50°C;

[0043] 3. Continuous dehydration: Lead the fiber slurry to the forming net, driven by the forming net at a net speed of 22m / min, carry out gravity dehydration while forming a fiber net, and ...

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Abstract

The invention discloses a collagen staple fiber regenerated leather and a preparation process thereof. The preparation process includes the steps of preparation of raw materials, liquid phase dispersing, pre-treatment, continuous dehydration, high-pressure spunlace, shaping and rewinding. With combination of the plasma technology and high-pressure spunlace process, the problem about low intensityof the collagen staple fiber regenerated leather is solved, tensile force, tearing strength and bursting strength of products are improved, and the regenerated leather has fine hand feeling, smooth surface, high gram weight, high density and no defects of surface stripping, cracking and the like. The preparation process has the advantages of realizing effective recovery of collagen staple fibers,reducing production cost and achieving high cost performance.

Description

technical field [0001] The invention relates to a collagen fiber regenerated skin, in particular to a collagen short fiber regenerated skin and a preparation process thereof, and belongs to the technical field of fiber and fiber product processing. Background technique [0002] Collagen fiber is the main component of the skin, and collagen is the basic unit of collagen fiber, which is composed of three peptide chains intertwined into a helical structure. Collagen fibers have microelasticity and high tensile strength, and also have many unique properties, such as high wear resistance, heat insulation, sound absorption and flexibility. [0003] People have worked out some methods for extracting collagen fibers from animal skins and applied them. For example, CN105175533A discloses a thin cowhide collagen extraction process, and CN103233325B discloses a method of using purified pigskin as raw material, using physical, Antigen-free porcine dermis collagen fibers prepared by com...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): D04H1/42D04H1/492D21F3/02D21F5/02
CPCD04H1/42D04H1/492D21F3/02D21F5/02
Inventor 顾勇杰
Owner 顾勇杰
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