Flash explosion and base boiling combined degumming method of natural bamboo fiber

A technology of natural bamboo fiber and degumming method, which is applied in fiber treatment, chemical post-treatment of fiber, textile and paper making, etc. It can solve the problems of single chemical degumming pollution, large fiber damage, etc., and achieve loose fiber, soft hand, cellulose The effect of content increase

Inactive Publication Date: 2013-04-17
SOUTHWEST UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In view of the problems existing in the prior art above, the purpose of this invention is to provide a kind of natural bamboo fiber flash explosion-alkali boiling combined degumming method, which can overcome the serious pollution of single chemical degumming, the shortcoming of large fiber damage, and obtain higher Degumming rate

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0016] (1) Remove the nodes of the bamboo, cut it into bamboo slices, and then roll it into thin bamboo strips, cook in water at 120°C for 2 hours, remove part of the gum and impurities, wash with warm water, and soak the bamboo strips in warm water at 50°C for 60 minutes ;

[0017] (3) Put the bamboo strips into the flash explosion tank, heat up the pressure to 0.4MPa, keep the pressure in the flash explosion tank for 10 minutes, open the pressure relief valve to release the pressure instantly for flash explosion treatment, the fibers are partially degummed and split, and then fibers are collected and washed;

[0018] (3) Carry out alkali boiling treatment on the bamboo fiber after flash explosion, add bamboo fiber into the scouring liquid, NaOH, NaOH and Na in the scouring liquid 2 SO 3 The concentrations of JFC and JFC are 2g / L, 4g / L, 4g / L respectively, the liquor ratio is 1:25, scouring at 100°C for 30min, filtering out the bamboo fiber, washing it with warm water, and d...

Embodiment 2

[0020] (1) Remove the nodes of the bamboo, cut it into bamboo slices, and then roll it into thin bamboo strips, cook in water at 120°C for 2 hours, remove part of the gum and impurities, wash with warm water, and soak the bamboo strips in warm water at 50°C for 60 minutes ;

[0021] (2) Put the bamboo strips into the flash explosion tank, heat up the pressure to 0.7MPa, keep the pressure in the flash explosion tank for 20 minutes, open the pressure relief valve to release the pressure instantly for flash explosion treatment, the fibers are partially degummed and split, and then fibers are collected and washed;

[0022] (3) Carry out alkali boiling treatment on the bamboo fiber after flash explosion, add bamboo fiber into the scouring liquid, NaOH, NaOH and Na in the scouring liquid 2 SO 3 The concentrations of JFC and JFC are 3g / L, 4g / L, 4g / L respectively, bath ratio 1:25, scouring at 100°C for 90min, filtering out the bamboo fibers, washing them with warm water, and drying ...

Embodiment 3

[0024] (1) Remove the nodes of the bamboo, cut it into bamboo slices, and then roll it into thin bamboo strips, cook in water at 120°C for 2 hours, remove part of the gum and impurities, wash with warm water, and soak the bamboo strips in warm water at 50°C for 60 minutes ;

[0025] (2) Put the bamboo strips into the flash explosion tank, heat up the pressure to 0.8MPa, keep the pressure in the flash explosion tank for 15 minutes, open the pressure relief valve to release the pressure instantly for flash explosion treatment, the fibers are partially degummed and split, and then fibers are collected and washed;

[0026] (3) Carry out alkali boiling treatment on the bamboo fiber after flash explosion, add bamboo fiber into the scouring liquid, NaOH, NaOH and Na in the scouring liquid 2 SO 3 The concentrations of JFC and JFC are 4g / L, 4g / L, 4g / L respectively, bath ratio 1:25, scouring at 100°C for 60min, filtering out bamboo fiber, washing with warm water, and drying at 50~60°C...

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PUM

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Abstract

The invention relates to a flash explosion and base boiling combined degumming method of natural bamboo fiber. The method comprises the steps of: carrying out prepreg treatment on natural bamboo strips, then placing the bamboo strips in a flash explosion tank body for flash explosion, then carrying out base boiling, washing with water and drying to obtain soft and dispersive natural bamboo fiber.According to the invention, by virtue of flash explosion, the partial hemicellulose is removed, lignin is softened, the internal structure of the bamboo fiber is loosened, and the base boiling degumming pressure is reduced. Test shows that the degumming effect of the natural bamboo fiber treated by the method is obvious, the non-callulose components are obviously reduced, the cellulose content isincreased, the softness and dispersibility of the fiber are good, an efficient way for producing spinnable natural bamboo fiber is provided, the degumming time is shortened and the environmental pollution is reduced.

Description

technical field [0001] The invention relates to the fields of textile chemistry and dyeing and finishing engineering, in particular to a flash explosion-alkali boiling combined degumming method for natural bamboo fibers. Background technique [0002] my country is rich in bamboo resources, ranking first in the world, with a bamboo forest area of ​​5 million Km 2 , with an annual output of 8 million tons. Bamboo has a short growth cycle, strong renewability, and does not occupy arable land. Bamboo fiber is a natural fiber directly separated from bamboo by a unique process. Its surface has natural grooves and cracks, and its cross-section has many pores. This unique morphological structure endows it with good moisture absorption and release properties, known as " Breathable fiber", it also has good air permeability, antibacterial, anti-ultraviolet function, excellent dyeability, good natural luster, its fabric is known as "the most promising healthy fabric in the 21st centur...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): D01C1/00
Inventor 张袁松谢吉祥李晓龙张光先
Owner SOUTHWEST UNIV
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