Physical preparation method for bamboo fibers

A bamboo fiber and physical technology, applied in the field of pure physical preparation of bamboo fiber, can solve the problems of high cost, environmental pollution, complicated operation, etc., and achieve the effects of low production cost, reduced labor intensity, and short technological process.

Inactive Publication Date: 2016-02-10
TIANJIN POLYTECHNIC UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Aiming at problems such as complex operation, high cost, and environmental pollution in the existing bamboo fiber production process, the technical problem to be solved by the present invention is to prov

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0027] Example 1

[0028] The specific process steps used are as follows:

[0029] First, clean the white debris and impurities on the bamboo with a brush in clean water. Then put the bamboo slices in the steaming container, add enough water to keep the bamboo slices below the liquid level. Steaming is carried out at a temperature of 129°C and a pressure of 0.17 MPa, and the treatment time is 14 hours to remove lignin, sugar, fat, etc. and soften the bamboo chips. When cooking, add enough water to keep the bamboo slices below the liquid level during the cooking process. Put the freshly steamed wet bamboo chips on a soft hemp machine under a pressure of 730-750N for mechanical softening. The soft hemp machine has 14 pairs of rollers, 1-4 pairs have 20 grooves, and 5-8 pairs have 22 Grooves, 9-10 pairs have 24 grooves, 11-12 pairs have 25 grooves, and 13-14 pairs have 27 grooves. The rolling effect is gradually strengthened, and it can be continuously carried out on the route of t...

Example Embodiment

[0030] Example 2

[0031] The specific process steps used are as follows:

[0032] First, clean the white objects and impurities on the bamboo with a brush in clean water. Then put the bamboo chips in the steaming container, add enough water to keep the bamboo chips below the liquid level. Steaming is carried out at a temperature of 127°C and a pressure of 0.15MPa, and the treatment time is 15h to remove lignin, sugars, fats, etc. and soften the bamboo chips. Keep the bamboo slices below the liquid level during the cooking process. Put the freshly steamed wet bamboo chips on a soft hemp machine under a pressure of 730-750N for mechanical softening. The soft hemp machine has 14 pairs of rollers, 1-4 pairs have 20 grooves, and 5-8 pairs have 22 Grooves, 9-10 pairs have 24 grooves, 11-12 pairs have 25 grooves, and 13-14 pairs have 27 grooves. The rolling effect is gradually strengthened, and it can be continuously carried out on the route of the raw material. Rolling has a good ro...

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PUM

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Abstract

The invention provides a pure physical and pollution-free extraction technology for bamboo fibers. By means of the technology, coarse bamboo fibers with the diameter ranging from 0.03 mm to 0.3 mm, the length larger than 20 cm, the elongation at break ranging from 3% to 7%, the break force ranging from 3 N to 15 N and the break strength ranging from 100 MPa to 600 MPa can be obtained. The technological process includes the steps of pretreatment, high-temperature and high-pressure cooking, mechanical softening fibrillation, screening and separation, drying, and packaging and warehousing, wherein pretreated bamboo chips are put into a cooking container to be cooked and softened for 14-15 h, and then mechanical grinding fibrillation is performed through a softening machine. The product prepared through the technology meets the requirement for bamboo-plastic composites, production cost is low, the technological process is short, cleanliness and environment friendliness are achieved, and preparation is simple and easy.

Description

technical field [0001] The invention relates to textile material technology, in particular to a purely physical preparation method of bamboo fiber. Background technique [0002] China is one of the countries with the richest bamboo resources, ranking first in the world in terms of bamboo species, area, stock volume and annual harvesting volume. According to statistics, there are more than 40 genera and 500 species of bamboo plants in China, with an area of ​​7.2 million hectares of bamboo forests. 2 , of which 4.2 million hm of pure bamboo forest 2 . For thousands of years, the use of bamboo has been realized by processing it into bamboo products. Today, when non-renewable resources such as petroleum are increasingly depleted, it is of great significance to use bamboo as raw material for the development of fiber materials. [0003] The length of bamboo single fiber is relatively small, generally about 2 mm, and it is composed of many single fibers bonded longitudinally. D...

Claims

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Application Information

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IPC IPC(8): D01B1/22
Inventor 王春红张青菊
Owner TIANJIN POLYTECHNIC UNIV
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