Natural plant fibre extraction by alkali oxidation

A technology of natural plant fiber and plant fiber, applied in the field of textile processing, can solve the problems of long chemical extraction process, unstable fiber quality and insufficient enzyme activity, and achieve the effects of short process, low cost and low lignin content

Inactive Publication Date: 2006-08-16
QINGDAO UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Among them, the chemical extraction process is long, costly, and consumes a lot; while the enzyme activity of the biological extraction strains is not high e

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0017] Embodiment 1: Apocynum hemp → pickling (40 ℃ of temperature, H 2 SO 4 1ml / L, bath ratio 1:20, time 1 hour) → water washing → alkali oxygen bath (NaOH9.5g / L, H 2 o 2 7.5g / L, oxygen bleaching stabilizer 2.3g / L, magnesium sulfate dosage 0.1%, temperature 100°C, time 120 minutes, bath ratio 1:20) → fiberizing → washing → pickling (normal temperature, H 2 SO 4 1ml / L, time 5 minutes, bath ratio 1:20) to neutral → water washing → dehydration → oiling (5ml / L, temperature 50°C, time 1 hour, bath ratio 1:20) → water washing → dehydration → apocynum fiber.

Embodiment 2

[0018] Embodiment 2: Raw hemp of ramie → pickling (40 ℃ of temperature, H 2 SO 4 1ml / L, bath ratio 1:20, time 1 hour) → water washing → alkaline oxygen bath (NaOH9g / L, H 2 o 2 7g / L, oxygen bleaching stabilizer 2.1g / L, magnesium sulfate dosage 0.1%, temperature 100°C, 120 minutes, bath ratio 1:20) → fiberizing → washing → pickling (normal temperature, H 2 SO 4 1ml / L, time 5 minutes, bath ratio 1:20) to neutral→water washing→dehydration→oiling (5ml / L, temperature 50℃, time 1 hour, bath ratio 1:20)→water washing→dehydration→ramie fiber .

Embodiment 3

[0019] Embodiment 3: Asparagus → pickling (40 ℃ of temperature, H 2 SO 4 1ml / L, bath ratio 1:20, time 1 hour) → water washing → alkaline oxygen bath (NaOH8g / L, H 2 o 2 6g / L, oxygen bleaching stabilizer 1.8g / L, magnesium sulfate dosage 0.1%, temperature 100°C, time 120 minutes, bath ratio 1:20)→fibering→water washing→pickling (normal temperature, H 2 SO 4 1ml / L, time 5 minutes, bath ratio 1:20) to neutral→water washing→dehydration→oiling (5ml / L, temperature 50℃, time 1 hour, bath ratio 1:20)→water washing→dehydration→textile Asparagus fiber.

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PUM

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Abstract

The invention provided an alkaline extracting method of the natural plant fiber. The process is: the material->acid etch->washing->alkaline with oxygen->strike the fiber->washing by the water->washing by the acid->washing by the water->dehydration->shake the fiber->oil feed->dehydration->air dry or oven dry. The fiber can be protected by adding the assistant Mg<2+>, the stability of the H2O2 in the alkali and the chemical assistant, also the nucleophilic reaction of the H2O2 to lignine can reach the best efficient. It can be used for extracting the plant fiber of the spinning, weaving and the dressing.

Description

technical field [0001] The invention relates to the technical field of textile processing, in particular to an alkali-oxygen method for extracting natural plant fibers. Background technique [0002] At present, the commonly used extraction methods of natural plant fibers are: biological extraction and chemical extraction. Among them, the chemical extraction process is long, costly, and consumes a lot; while the enzyme activity of the biological extraction strains is not high enough, the plant fibers after microbial extraction also contain more colloids, especially the fiber quality after biological extraction is not stable. How to ensure the quality of plant fiber extraction while reducing costs and consumption has become an urgent technical problem to be solved at present. Contents of the invention [0003] The purpose of the present invention is to provide a kind of extraction method of the natural plant fiber of alkali-oxygen method in view of the shortcoming existing ...

Claims

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Application Information

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IPC IPC(8): D01C1/02
Inventor 曲丽君李凌云王金泉
Owner QINGDAO UNIV
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