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Chem-bio combined preparation method of carex meyeriana fibers

A technology of ulagrass fiber and chemical biology, which is applied in the chemical post-treatment of fibers, fiber treatment, plant raw materials, etc., can solve the problems of easy damage of chemical treatment, uneven treatment effect, single treatment method, etc., and achieve uniform fiber fineness Good flexibility and softness, short time, uniform degumming effect

Inactive Publication Date: 2016-11-23
TIANJIN POLYTECHNIC UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Aiming at the existing problems such as single treatment method, uneven treatment effect, easy damage to fiber by chemical treatment, environmental pollution, and long treatment time in the existing ulagrass fiber preparation method, the technical problem to be solved by the present invention is to provide a ulagrass fiber The chemical-biological joint preparation method aims to provide a new method for extracting Ulagrass fiber, which fully considers the uniformity, softness and high efficiency of degumming, and has the advantages of simple operation, intermittent processing, clean and environmentally friendly, safe and reliable, The obtained fiber fineness uniformity and softness are good

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] Boil 10 g of Uralia stalks in a boiling water bath for 2 hours, after cooling, roll and comb to obtain Ulagrass filaments, add 12 g / L of alkali, 2% urea, and 500 mL of water into a beaker, and heat it at 85 ° C. Treat for 30 minutes under the same conditions, take out the Ulagrass and wash it with hot water for 4 times, and then wash it with cold water for 3 times to make it neutral. The bath is to add 6g / L alkali, 6g / L hydrogen peroxide, 2% JFC penetrant, and 500mL water, rise from room temperature to 90°C for 30min, then wash, and then add 8g / L alkali, 2% JFC penetrant, 500mL of water, treated at 85°C for 30min, washed, and the final laccase treatment was to prepare a buffer solution with pH=5.0, adding 12% laccase, adding 200mL of water, at 50°C , 40rpm and treated for 15min, taken out for washing, oiled, and dried to obtain ulagrass fiber. The diameter of the obtained ulagrass fiber is 46.18μm, the breaking strength is 169.29MPa, and the flexibility is 0.18 twist*d...

Embodiment 2

[0023] Boil 10 g of Uralia stalks in a boiling water bath for 2 hours, after cooling, roll and comb to obtain Ulagrass filaments, add 12 g / L of alkali, 2% urea, and 500 mL of water into a beaker, and heat it at 80 ° C. Treat for 40 minutes under the same conditions, take out the Ulagrass and wash it with hot water for 4 times, and then wash it with cold water for 3 times to make it neutral. Add 8g / L alkali, 6g / L hydrogen peroxide, 2% JFC penetrant, and 500mL water to the bath, heat up to 90°C for 40min at a rate of 1°C / min, then wash, and then add 8g / L alkali, 2% JFC penetrant, 500mL water, treated at 80°C for 40min, washed, and the final laccase treatment was to prepare a buffer solution with pH=6.0, adding 14% laccase, adding 200mL Water is treated at 60°C and 40 rpm for 15 minutes, taken out for washing, oiled, and dried to obtain ulagrass fiber. The diameter of the obtained ulagrass fiber is 44.85 μm, the breaking strength is 168.71 MPa, and the flexibility is 0.13 twist...

Embodiment 3

[0025] Boil 10 g of Uralia stalks in a boiling water bath for 2 hours, after cooling, roll and comb to obtain Ulagrass filaments, add 14 g / L alkali, 2% urea, and 500 mL of water into a beaker, Treat for 60 minutes under the same conditions, take out the Ulagrass and wash it with hot water for 4 times, and then wash it with cold water for 3 times to make it neutral. The bath is to add 8g / L alkali, 6f / L hydrogen peroxide, 2% JFC penetrant, and 500mL water, rise from room temperature to 90°C for 60min, then wash, and then add 8g / L alkali to the bath. 2% JFC penetrant, 500mL of water, treated at 70°C for 60min, washed, and the final laccase treatment was to prepare a buffer solution with pH = 5.0, adding 14% laccase, adding 200mL of water, at 50°C , 40rpm and treated for 15min, taken out for washing, oiled, and dried to obtain ulagrass fiber. The diameter of the obtained ulagrass fiber is 42.56 μm, the breaking strength is 201.51 MPa, and the flexibility is 0.29 twist*dtex -1 *m...

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Abstract

The invention discloses a chem-bio combined preparation method of carex meyeriana fibers, which includes the steps of: collection of straw of carex meyeriana, water-boiling, pre-processing, pre-alkaline boiling, water washing, alkali-peroxide one-bath treatment, water washing, post-alkaline boiling, water washing, treatment with laccase, water washing and oil addition to prepare the carex meyeriana fibers. In the pre-alkaline boiling, an alkaline solution in high concentration is employed, wherein urea is added to perform puffing and degumming treatment. In the alkali-peroxide one-bath treatment, a JFC penetrant is added so that effect of the alkali and peroxide is more complete. In the post-alkaline boiling, an alkaline solution in lower concentration is employed, wherein the JFC penetrant is added to further degum the product. In the laccase treatment, a shaking table vibration method is employed, wherein a beaker is arranged in a shaking table of which the temperature is 40-60 DEG C and the vibration speed is 40-90 r / min to degum the product for 15-30 min gently and uniformly. The method is simple, is high-effective, is clean and environment-friendly, wherein the degumming is gentle and uniform. The extracted carex meyeriana fibers are uniform and soft, and can be used in yarn spinning.

Description

technical field [0001] The invention relates to textile material technology, in particular to a chemical-biological combination preparation method of Ulagrass fiber. Background technique [0002] Ulagrass, once known as one of the "Three Treasures of Northeast China", has excellent warmth retention, deodorization and antibacterial properties, and is loved by people. In order to make it easier to spin and weave, it is particularly important to extract the urad fiber with excellent performance. [0003] At present, the preparation methods of ulagrass fiber all adopt chemical methods, the first is an alkali boiling method (see "a kind of production process and product of ulagrass fiber silk (application number 200410010645.X)"), the process adopts alkali boiling method or high temperature The high-pressure alkaline cooking method is used to extract Uralia sativa fibers. This process has the disadvantages of poor degumming effect of one-time alkaline cooking, uneven treatment e...

Claims

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Application Information

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IPC IPC(8): D01C1/00
Inventor 王春红岳鑫敏
Owner TIANJIN POLYTECHNIC UNIV
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