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Duplexing modification method for twain coarse fiber of flax

A technology of flax two-coarse and hemp fiber, which is applied in the field of hemp textiles, can solve the problems of inability to produce pure hemp yarn and high-grade fabrics, fiber strength, large length loss, fiber softness, and low splitting degree, and achieve length control and processing The effect of low temperature and low overall cost

Inactive Publication Date: 2009-04-15
甘肃省纺织科学研究院有限责任公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Chemically degummed fibers are soft to the touch and have a high degree of splitting, but it is time-consuming and labor-intensive, and the strength and length of the fibers are greatly lost
The cost of mechanical carding is low, but the softness and splitting degree of the fiber are low, and it is impossible to produce high-count (above 21Nm) pure hemp yarn and high-grade fabrics

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] Stack 14 kilograms of flax two crude fibers in a sealed room at 18°C ​​for 40 hours of wet health, so that the moisture regain of the hemp fiber is controlled at 15%; the fiber carding machine is used to comb and remove impurities to make 10 kilograms; after removing impurities The two crude fibers of flax are packed into the bulk fiber dyeing vat in an orderly manner, add 125 kg of water in the bulk fiber dyeing vat to adjust the water temperature to 55°C, the pH value to 7-8, and add 0.1 kg of biological compound scouring enzyme (product of Bayer Chemical Co., Ltd., Germany) , treatment time is 2 hours; then wash twice with 80°C hot water for 18 minutes; then pour 130 kg of water into the loose fiber dyeing vat, add 0.75 kg of NaoH, 0.1 kg of JFC penetrant, Na 2 SiO 3 0.2 kg, 0.4 kg of 209 lotion, adjust the water temperature to 95°C, and extract for 60 minutes; then wash twice with 80°C hot water for 15 minutes; wash at room temperature for 15 minutes to remove impur...

Embodiment 2

[0032] Divide 72 kg of flax fiber into 4 layers and spray water, that is, the first layer of fiber, spray water, the second layer of fiber, spray water --- to ensure uniform moisture distribution, and stack them in a sealed room at 25°C for 36 hours of moisture preservation , so that the moisture regain of the hemp fiber is controlled at 16%, and the fiber carding machine is used to card and remove impurities to make (by 70% production rate) 50 kilograms; Fiber dyeing vat, add 750 kg of water to the bulk fiber dyeing vat, adjust the water temperature to 50°C, pH value 7-8, add 0.75 kg of biological compound scouring enzyme (product of Genencor, USA), and process for 2.5 hours; then use 80°C Wash twice in hot water for 15 minutes; then add 750 kg of water to the loose fiber dyeing vat, add 3.75 kg of NaoH, 0.5 kg of JFC penetrant, and 2 SiO 3 1 kg, 3 kg of sodium dodecylbenzene sulfonate, adjust the water temperature to 95°C, and extract for 60 minutes; then wash twice with h...

Embodiment 3

[0034] Divide 143 kg flax fiber into 6 layers and spray water, stack it in a sealed room at 20°C for 48 hours, so that the moisture regain of the flax fiber can be controlled at 18%. kg; the flax two crude fibers after impurity removal are packed into bulk fiber dyeing vat orderly, add 1000 kg of water in the bulk fiber dyeing vat to adjust water temperature 53 ℃, pH value 7-8, add biological compound scouring enzyme (German Bayer Chemical company product) 1 kg, treatment time 3 hours; then wash twice with 80 ℃ hot water for 20 minutes; then add 1000 kg of water to the loose fiber dyeing vat, add 7.5 kg of NaoH, 1 kg of JFC penetrant, Na 2 SiO 3 2 kg, 2 kg of 209 lotion, adjust the water temperature to 95°C, and extract for 60 minutes; wash twice with hot water at 80°C for 20 minutes; wash at room temperature for 20 minutes to remove impurities, put it into a dehydrator for dehydration, and take it out, Use spray method, add 3% (o.w.f) hydrogenated amino natural fatty alcoho...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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PUM

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Abstract

A method for modifying second coarse fibers of fiber flax by double processing includes preserving second flax coarse fibers, mechanical combing, impurities removing, modifying loose fiber, biological complex enzyme scouring, hot water washing, extracting, secondary hot water washing, cold water washing, dewatering, oiling, drying and obtaining product. In the method, enzyme scouring parameter is bath ratio of 1:10 - 15, enzyme of 1% - 1.5%, TFC of 1%, etc, extracting parameter is NaOH of 4 - 6 g / L, JFC of 1%, Na2 SiO3 of 2g / L, etc.

Description

technical field [0001] The invention belongs to the technical field of flax textiles, in particular to a dual-treatment modification method for flax di-crude fibers. Background technique [0002] With the development of science and technology, the research on hemp crop resources and product deep processing technology has been paid more and more attention by experts at home and abroad. The spinnability of flax two-crude fiber is poor, the reason is that it contains a lot of impurities, the impurity rate is about 30%, the fiber is thick and hard, its fineness is only 300-400 metric, and the fiber length uniformity is poor. These characteristics determine that the production on textile equipment must go through the pretreatment process. There are generally two types of pretreatment processes: one is mainly chemical degumming, supplemented by mechanical carding, which increases the splitting degree of process fibers; the other method uses mechanical opening, impurity removal an...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): D01C1/00C12S3/06
Inventor 孙和平杨建海
Owner 甘肃省纺织科学研究院有限责任公司