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Short-process degumming method for apocynum bast fiber

A degumming method and leather fiber technology, applied in the direction of producing bast fiber by chemical method, can solve the problems of high labor intensity, long process, low efficiency, etc., and achieve the effects of reducing labor intensity, reducing sewage discharge, and reducing production costs

Active Publication Date: 2012-01-11
XINJIANG ALTAY PREFECTURE GAUBAO KENDER CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Aiming at the problems of long process, low efficiency, heavy pollution and high labor intensity in the currently commonly used hemp fiber processing method, the present invention provides a short-process degumming method for apocynum bast fiber

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0013] Place hydrogen peroxide with a concentration of 50g / L, penetrant JFC (commercially available) with a concentration of 1g / L and sodium tripolyphosphate with a concentration of 10g / L in water, stir evenly, and prepare a loosening solution. The skin is immersed in the debonding solution, the bath ratio is 1:15 (weight ratio), the temperature is raised to 100 ° C, and the temperature is maintained for 40 min to debond;

[0014] Add 30g / L of sodium hydroxide to the decomposed treatment bath, and cook at a temperature of 80°C for 60min;

[0015] The degummed apocynum bast fiber can be obtained by placing the scouring-treated hemp skin in the prepared pH 6 water washing solution and washing at a temperature of 75° C. for 25 minutes.

Embodiment 2

[0017] Place sodium hypochlorite with a concentration of 30g / L, penetrant JFC (commercially available) with a concentration of 3g / L and sodium tripolyphosphate with a concentration of 5g / L in water, stir evenly, and prepare a loosening solution. The skin is immersed in the debonding solution, the bath ratio is 1:10 (weight ratio), the temperature is raised to 90 ° C, and the heat preservation is carried out for 50 min for debonding;

[0018] Add 15g / L of potassium hydroxide to the decomposed treatment bath, at a temperature of 85°C, and keep the temperature at 85°C for 15min to cook;

[0019] The degummed apocynum bast fiber can be obtained by placing the scouring-treated hemp skin in the prepared pH 5 water washing solution at a temperature of 80° C. and washing for 15 minutes.

Embodiment 3

[0021] Place the hydrogen peroxide with a concentration of 55g / L, a penetrant T (commercially available) with a concentration of 5g / L and a sodium silicate with a concentration of 8g / L into the water, stir evenly, and prepare a loosening solution. Immerse in the debonding solution, the bath ratio is 1:20 (weight ratio), be warmed up to 75 ℃, heat preservation 90min to carry out debonding;

[0022] Add 35g / L of sodium hydroxide to the decomposed treatment bath, and cook at a temperature of 75°C for 80min;

[0023] The degummed apocynum bast fiber can be obtained by placing the scouring-treated hemp skin in the prepared pH 5.5 water lotion at a temperature of 75° C. and washing for 20 minutes.

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Abstract

The invention relates to a short-process degumming method for apocynum bast fiber. The method comprises the following steps of: immersing apocynum skin in a decomposing liquid prepared from a decomposing agent, a penetrating agent and a chelating agent for decomposing, adding alkali in the decomposing liquid for stewing, then washing, and finally obtaining the apocynum bast fiber after degumming.The method has a short degumming process, saves the hemp-knocking working procedure in the traditional apocynum degumming technology, reduces labor intensity, shortens production time, increases working efficiency, reduces consumption of water, electricity and steam and sewage discharge, and benefits energy saving, emission reduction and cleaner production.

Description

technical field [0001] The invention relates to a short-process degumming method for apocynum bast fibers, in particular to a method for preparing apocynum bast fibers by using apocynum as a textile raw material. Background technique [0002] The word "Apocynum" was named by Mr. Dong Zhengjun, a well-known agricultural economist in my country, who discovered the use value of its fibers in Lop Nur, Xinjiang in the 1950s. The apocynum he refers to is the general term for all the plants of the genus Apocynum created by Linnaeus in the former Soviet Union. There are 3 species in our country, namely; Apocynum (also known as Apocynum venetum Linn); Apocynum (also known as Big Leaf Apocynum, Poacynumhendersonii (Hook.f) Wodson); Apocynum (also known as Middle Flower Apocynum) Hemp, purpura, Poacynum pictum (Schrenk) Baill). Before the 1950s, apocynum was widely distributed in more than 10 provinces from northwest to northeast China. However, due to excessive logging, man-made de...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): D01C1/02
Inventor 孟繁杰巩继贤张建飞林本术刘起棠王莉
Owner XINJIANG ALTAY PREFECTURE GAUBAO KENDER CO LTD