Refined preparation method of Carex meyeriana fiber

A technology of uran grass fiber and uran grass straw is applied in the chemical post-processing of fibers, fiber treatment, textiles and papermaking, etc. It can solve the problems of polluting the environment, poor fiber treatment effect, complicated operation, etc. Contact area, the effect of increasing the contact area

Inactive Publication Date: 2016-11-16
TIANJIN POLYTECHNIC UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Aiming at the problems of complex operation, long time consumption, environmental pollution, and poor fiber treatment effect existing in the existing Ulagrass fiber preparation method, the key problem to be solved by the present invention is to provide a fine preparation method of Ulagrass fiber, the method The process of extracting Ulagrass fiber by using chemical-biological enzyme-chemical combination aims to provide a new method for extracting Ulagrass fiber. The extraction process has the advantages of simple process, clean and environmentally friendly, and good fiber performance.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] Boil 5 g of Ulagrass stalks in a boiling water bath for 2 hours, after cooling, carry out rolling and card clothing carding to obtain Ulagrass filaments, and then carry out chemical treatment, the dosage of sodium hydroxide is 6g / L, and the dosage of urea is the weight of straw 2%, the treatment temperature is 95°C, the time is 40min, and the bath ratio is 1:40. Then carry out biological enzyme treatment, the dosage of pectinase is 4%, the dosage of JFC penetrant is 3%, the treatment temperature is 45°C, the pH is 5, the time is 2h, and the bath ratio is 1:40; then carry out alkaline oxygen one-bath treatment , the bath ratio is 1:40, add sodium hydroxide 4g / L, hydrogen peroxide 6g / L, sodium sulfite 3%, rise from room temperature to 90°C for 30min; then air-dry, open and comb. The obtained ulagrass fibers had an average diameter of 58 μm, an average breaking strength of 130 MPa, and an average breaking elongation of 5.25%.

Embodiment 2

[0022] Boil 5 g of Ulagrass stalks in a boiling water bath for 2 hours, after cooling, carry out rolling and carding to obtain Ulagrass filaments, and then carry out chemical treatment, the dosage of sodium hydroxide is 8g / L, and the dosage of urea is the weight of the straw 2%, the treatment temperature is 95°C, the time is 40min, and the bath ratio is 1:40. Then carry out biological enzyme treatment, the dosage of pectinase is 3%, the dosage of JFC penetrant is 3%, the treatment temperature is 50°C, the pH is 4.5, the time is 2h, and the bath ratio is 1:40; then carry out alkali-oxygen one-bath treatment , the bath ratio is 1:40, add sodium hydroxide 10g / L, hydrogen peroxide 8g / L, sodium sulfite 2%, rise from room temperature to 90°C for 60min; then air-dry, open and comb. The obtained ulagrass fibers had an average diameter of 42 μm, an average breaking strength of 210 MPa, and an average breaking elongation of 2.54%.

Embodiment 3

[0024] Boil 5g of Uralia stalks in a boiling water bath for 2 hours, after cooling, roll and card cloth to obtain Ulagrass filaments, and then perform chemical treatment, the dosage of sodium hydroxide is 10g / L, and the dosage of urea is the weight of the straw 3%, the treatment temperature is 95°C, the time is 30min, and the bath ratio is 1:40. Then carry out biological enzyme treatment, the dosage of pectinase is 2%, the dosage of JFC penetrant is 1%, the treatment temperature is 45°C, the pH is 5, the time is 4h, and the bath ratio is 1:40; then carry out alkali-oxygen one-bath treatment , the bath ratio is 1:40, add sodium hydroxide 4g / L, hydrogen peroxide 4g / L, sodium sulfite 2%, rise from room temperature to 90°C for 90min; then air-dry, open and comb. The obtained ulagrass fibers had an average diameter of 61 μm, an average breaking strength of 175 MPa, and an average breaking elongation of 3.29%.

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Abstract

The invention discloses a refined preparation method of ulagrass fiber. The process adopted in the preparation method is: ulagrass stalk→water soaking→boiling→primary processing→alkali treatment→water washing→biological enzyme treatment→alkaline-oxygen one-bath treatment→after Washing → air drying → splitting → Ulagrass fiber. Wherein the alkali treatment process is that the dosage of sodium hydroxide is 6-10g / L, and the dosage of urea is 2-4% of the straw mass. In the biological enzyme treatment process, pectinase is used for degumming treatment. The alkali-oxygen one-bath process uses sodium hydroxide 4-10g / L, hydrogen peroxide 2-8g / L, sodium sulfite 1-3%, rises from room temperature to 90°C, and the constant temperature time is 30-90min. The fineness of the Uralia sativa fiber extracted above is 40-80μm, and the strength is 110-230MPa, which effectively solves the existing problems of complex operation, long time-consuming, polluting the environment, and poor fiber treatment effect in the existing Urassica fiber preparation method. The process has the advantages of simple process, clean and environment-friendly, good fiber performance and the like.

Description

technical field [0001] The invention relates to textile material technology, in particular to a refined preparation method of ulagrass fiber. Background technique [0002] Ulagrass is one of the only two plants in the plant world that can resist fungal erosion and parasitic ability throughout its life. For hundreds of years, farmers in Northeast China have always needed a pair of shoes covered with ulagrass during the winter, which played a very good role in preventing cold and keeping warm. Because of its unique function of keeping warm, breathable, sweat-absorbing, moisture-proof, cold-proof, and antibacterial, it was once called one of the "Three Treasures of Northeast China" by the world. Ulagrass fiber is the fiber extracted from Ulagrass, which is of great value for its development and utilization. At present, most of the ulagrass fiber products that have been developed are relatively rough, and there are few applications in the textile field, especially in products ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D01C1/00
CPCD01C1/00
Inventor 王春红王利军陈祯王定
Owner TIANJIN POLYTECHNIC UNIV
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