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Composite preparation for degumming of ramie with skins and degumming method

A compound preparation and ramie technology, applied in the field of textiles, can solve the problems of labor-intensive and time-consuming shaving, and achieve the effects of improving quality and reducing the cost of planting hemp

Active Publication Date: 2016-06-08
大竹县全畅麻纺有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a compound preparation for degumming ramie belt skin and a method for degumming ramie belt skin, so as to solve the labor-intensive and time-consuming problems of traditional manual scraping

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] (1) Decompose the ramie and put it in the fence, soak the ramie with skin in the compound preparation at a temperature of 20°C for 20 hours; the composition of the compound preparation is 1.5g / L ligninase, 1.5g / L hydrogen peroxide, 1.5 g / L catalase, add concentrated sulfuric acid (98%) to make the pH value 4.0;

[0023] (2) Alkali boiling the soaked ramie; the method of alkali boiling is: boil in the following solution for more than 1.5 hours: NaOH 6g / L, emulsifier 1.5g / L, phosphate additives 0.5g / L.

[0024] (3) The ramie after alkali boiling is kept warm and wet for more than 10 hours;

[0025] (4) Knock numb.

[0026] Subsequent bleaching, pickling, water washing, dehydration, oiling, and drying are the same as the prior art.

Embodiment 2

[0028] (1) Unpack the ramie and put it in the stall, soak the ramie with skin in the compound preparation at a temperature of 30°C for 12 hours; the composition of the compound preparation is 2.5g / L ligninase, 2.5g / L hydrogen peroxide, 1.0 g / L catalase, add concentrated sulfuric acid (98%) to make the pH value 4.5;

[0029] (2) Alkali boiling the soaked ramie; the method of alkali boiling is: boil for more than 2 hours in the following solution: NaOH 8g / L, emulsifier 0.5g / L, phosphate additives 1.5g / L.

[0030] (3) The ramie after alkali boiling is kept warm and wet for more than 10 hours;

[0031] (4) Knock numb.

[0032] Subsequent bleaching, pickling, water washing, dehydration, oiling, and drying are the same as the prior art.

Embodiment 3

[0034] (1) Unpack the ramie and put it in the stall, soak the ramie with skin in the compound preparation at 25°C for 16 hours; the composition of the compound preparation is 2g / L ligninase, 2g / L hydrogen peroxide, 1.2g / L L catalase, pH 4.3;

[0035] (2) Alkali boiling the soaked ramie; the method of alkali boiling is: boil for 2 hours in the following solution: NaOH6-8g / L, emulsifier 1g / L, sodium tripolyphosphate 1g / L.

[0036] (3) The ramie after alkali boiling is kept warm and wet for more than 10 hours;

[0037] (4) Knock numb.

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PUM

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Abstract

The invention discloses a composite preparation for degumming of ramie with skins and a degumming method. The composite preparation is composed of ligninase, hydrogen peroxide, and catalase. The degumming method comprises the following steps: (1) soaking ramie with skins through adoption of the composite preparation at a temperature of 20-30 DEG C for 12-20 h, wherein the composite preparation comprises 1.5-2.5 g / L of ligninase, 1.5-2.5 g / L of hydrogen peroxide, and 1.0-1.5 g / L of catalase and has a pH value in a range of 4.0-4.5; (2) boiling the soaked ramie in alkali; (3) performing thermal insulation and wet stewing of ramie after alkali boiling for more than 10h; and (4) knocking the obtained ramie. According to the method, skins of ramie can be removed, and pectin and hemicellulose can be effectively removed too. The quality of processed degummed ramie is greatly improved; the problem that ramie is degummed through manual scraping in the prior art is solved; and ramie planting cost is reduced.

Description

technical field [0001] The invention belongs to the field of textiles, and in particular relates to a compound preparation and a degumming method for degumming ramie belt skins. Background technique [0002] Degumming and processing ramie into dry hemp products is the first process of ramie spinning and weaving. Its price and quality are directly related to the competition between hemp spinning industry and cotton spinning, chemical fiber spinning and other industries. At present, the degumming of ramie adopts chemical methods to remove the glue, and the raw hemp used is economical "manual scraping" without leather. According to tests, the amount of labor required for scraping and removing the hemp skin accounts for 2 / 3 of the total labor required for planting. " "Scraping green" is labor-intensive, time-consuming, and inefficient, which has seriously affected the enthusiasm of hemp farmers. In recent years, the planting area of ​​ramie has decreased, the supply of raw hemp ...

Claims

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Application Information

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IPC IPC(8): D01C1/02
CPCD01C1/02
Inventor 李正海
Owner 大竹县全畅麻纺有限公司
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