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A cashmere sweater milling treatment process with environmental protection biological enzymatic method

A technology of biological enzyme method and sweater fulling, which is applied in the direction of biochemical fiber treatment, fiber treatment, animal fiber, etc., to achieve high whiteness, good drapability, and excellent anti-pilling effect

Active Publication Date: 2016-08-17
ZHEJIANG MIHUANG CASHMERE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] Based on the technical problems existing in the background technology, the present invention aims at the shortcomings of the current cashmere sweater shrinking finishing method, and provides a brand-new environmentally friendly cashmere sweater shrinking method that is simple to operate, environmentally friendly, fully utilizes biological enzymes, and does not add chemical reagents during the entire processing process. Cashmere treatment process

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] (1) Pretreatment: Treat the ordinary pink cashmere sweater with hot water at 70-80°C for half an hour, and the fibers of the cashmere sweater are 15-16 μm;

[0030] (2) Enzyme treatment:

[0031] In the first step, papain and laccase with an activity of 500,000 u / g and laccase of 600,000 u / g were selected and dissolved in a sodium bisulfite solution with a mass fraction of 1%, and the final concentrations of papain and laccase were controlled at The mass fraction is 1.2% and 1%, and then soak the cashmere sweater in it, control the pH at 7.0 and soak for 30 minutes, during which it can be stirred appropriately, and washed with clean water at room temperature after the time is up;

[0032] In the second step, select alkaline pectinase with an activity of 600,000 u / g, dissolve it in distilled water, control the final concentration of alkaline pectinase at 1.5% in mass fraction, then soak the cashmere sweater in it, and control the pH at 7.5 Soak for 10-15 minutes, during...

Embodiment 2

[0035] (1) Pretreatment: Treat ordinary khaki cashmere sweaters with hot water at 70-80°C for half an hour, and the fibers of the cashmere sweaters are 15-16 μm;

[0036] (2) Enzyme treatment:

[0037] In the first step, papain and laccase with an activity of 500,000 u / g and laccase of 600,000 u / g were selected and dissolved in a sodium bisulfite solution with a mass fraction of 1%, and the final concentrations of papain and laccase were controlled at The mass fraction is 1.5% and 1.2%, and then soak the cashmere sweater in it, control the pH at 7.5 and soak for 30-35min, during which you can turn it properly, and wash it with normal temperature water after the time is up;

[0038]In the second step, select alkaline pectinase with an activity of 600,000 u / g, dissolve it in distilled water, and control the final concentration of alkaline pectinase at a mass fraction of 1.7%, then soak the cashmere sweater in it, and control the pH at Soak at 8.0 for 15 minutes, during which yo...

Embodiment 3

[0041] (1) Pretreatment: Treat the ordinary blue cashmere sweater with hot water at 70-80°C for half an hour, and the fibers of the cashmere sweater are 15-16 μm;

[0042] (2) Enzyme treatment:

[0043] In the first step, papain and laccase with an activity of 500,000 u / g and laccase of 600,000 u / g were selected and dissolved in a sodium bisulfite solution with a mass fraction of 1%, and the final concentrations of papain and laccase were controlled at The mass fraction is 1.3% and 1.1%, and then soak the cashmere sweater in it, control the pH at 7.2 and soak for 35 minutes, during which it can be turned properly, and washed with clean water at room temperature after the time is up;

[0044] In the second step, select alkaline pectinase with an activity of 600,000 u / g, dissolve it in distilled water, control the final concentration of alkaline pectinase at a mass fraction of 1.6%, soak the cashmere sweater in it, and control the pH at 7. Soak at 8 for 12 minutes, turn it over...

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Abstract

The invention discloses a process for felting treatment of a cashmere sweater by virtue of an environment-friendly biological enzyme method. According to the process, the process condition is optimized, biological enzymes are fully utilized in the process, and specifically, papain, laccase and alkaline pectinase are used together. The treatment process provided by the invention is simple to operate, short in consumed time and very good in effect, and causes small damages to cashmere, and the treated cashmere sweater almost does not shrink, is obviously softer and plumper in hand feeling, shows luster as real silks, and is good in dropping feeling, strong in moisture absorption capability and more gorgeous in color.

Description

technical field [0001] The invention relates to a cashmere sweater milling treatment process, in particular to an environment-friendly biological enzymatic cashmere sweater milling treatment process. Background technique [0002] Cashmere fiber is widely favored by people because of its excellent properties such as fineness, softness, lightness, slipperiness and warmth. Cashmere products are soft to the touch, thick and plump, with soft luster, smooth and waxy, and good warmth retention. They have always been the first choice for consumers to keep warm. The length is 30-60mm, the single fiber strength is not high, and the average single fiber strength is 3.0-4.5CN. [0003] There has always been a prominent problem in cashmere knitted products: the wet elasticity of the fabric is poor, and the resilience performance is poor (the elongation at break of cashmere yarn is generally only 10% to 15%), which makes the dimensional stability of the product low, especially for multi-...

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 Patents(China)
IPC IPC(8): D06M16/00D06M101/12
Inventor 杨明娟
Owner ZHEJIANG MIHUANG CASHMERE
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