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Yak hair softening method

A technology of yak hair and acidifying solution, applied in textile and papermaking, fiber processing, animal fiber and other directions, can solve the problems of poor cohesion, thick fibers, and less curling.

Inactive Publication Date: 2015-06-10
青海大自然地毯纱有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Most of the yak hair fiber is composed of scale layer and cortex layer, and only contains a very small medulla layer, which has high strength, but because the scales are close to the hair shaft, relatively smooth, and the cohesion is extremely poor, the fiber is thick, long, and less curled. , Stiff, rigid, bring great difficulty to spinning

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0006] Example 1: A method for softening yak hair. Weigh 100 Kg of dry yak hair and 600 Kg of water, add formic acid to the water to adjust the pH to 5, and prepare an acidifying solution. Put the yak hair in the acidizing solution at room temperature After soaking for 30 minutes, dehydrate, then add sodium sulfite to 1200 Kg of water, adjust the pH to 8, then add 2 Kg of hydroxymethylimidazoline to prepare a reducing solution, and soak the acidified yak hair for 50 Minutes later dehydration, finally add 2 Kg modified silicone oil (chemical name: polydimethylsiloxane, molecular formula is: (CH) in 300 Kg water 3 ) 3 SiO[(CH 3 ) 2 SiO]n-Si (CH 3 ) 3 ), to obtain a softening liquid, soak the reduced-treated yak hair for 10 minutes at 30°C, then dehydrate it, and then it can be spun on the machine.

Embodiment 2

[0007] Example 2: A method for softening yak hair. Weigh 100Kg of dry yak hair and 1200 Kg of water, add acetic acid to the water to adjust the pH to 6, and prepare an acidification solution. Put the yak hair in the acidification solution at room temperature After soaking for 100 minutes, dehydrate, then add sodium sulfite to 600 Kg of water to adjust the pH to 7.5, then add 4 Kg of hydroxymethylimidazoline to prepare a reducing solution, and soak the acidified yak hair for 20 Minutes later dehydration, finally add 4 Kg modified silicone oil (chemical name: polydimethylsiloxane, molecular formula is: (CH) in 600 Kg water 3 ) 3 SiO[(CH 3 ) 2 SiO]n-Si (CH 3 ) 3 ), to obtain a softening liquid, soak the reduced yak hair for 20 minutes at 50°C, then dehydrate it, and then it can be spun on the machine.

Embodiment 3

[0008] Embodiment 3: A kind of softening method of yak hair, weigh dry yak hair 100Kg, water 800 Kg, add acetic acid in water, adjust PH=5.5, make acidification solution, under room temperature condition, yak hair is in the acidification solution After soaking for 50 minutes, dehydrate, then add sodium sulfite to 800 Kg of water to adjust the pH to 7.8, then add 3 Kg of hydroxymethyl imidazoline to obtain a reducing solution, and soak the acidified yak hair for 35 minutes at 80°C After dehydration, add 4 Kg modified silicone oil (chemical name: polydimethylsiloxane, molecular formula is: (CH 3 ) 3 SiO[(CH 3 ) 2 SiO]n-Si (CH 3 ) 3 ), to obtain a softening liquid, soak the reduced yak hair for 20 minutes at 40°C, then dehydrate it, and then it can be spun on the machine.

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Abstract

The invention belongs to the technical field of wool fabric industry, and particularly relates to a yak hair softening method. The proposed technology method comprises the following steps: acidification, reduction and smoothing sequentially. According to the characteristics of yak hair fiber, the curling of the yak hairs can be increased to the maximum extent by adopting an oxidation-reduction method, fibers are softened, fiber damage can be reduced, the fibers are smoother and softer, machine spinning is benefited, the spinning efficiency and quality and yarn formation rate are greatly improved, and the application range of the yak hair can be widened.

Description

[0001] 1. Fields: [0002] The invention belongs to the technical field of wool textile industry, in particular to a method for softening yak hair. Two, background technology: [0003] Yak is a unique breed of cattle in alpine regions, herbivorous ruminant livestock. It is mainly produced in areas above 3,000 meters above sea level on the Qinghai-Tibet Plateau in China. Yak hair has few myelinated hairs, and the hair pith is also small, with good strength and elongation. The diameter of yak hair is greater than 25 microns, and the length can exceed 20 cm. It is straight in shape, smooth in surface, and some have continuous hair pith, tough and shiny, and low felting. Most of the yak hair fiber is composed of scale layer and cortex layer, and only contains a very small medulla layer, which has high strength, but because the scales are close to the hair shaft, relatively smooth, and the cohesion is extremely poor, the fiber is thick, long, and less curled. , Stiff, rigid, brin...

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 Applications(China)
IPC IPC(8): D06M13/188D06M11/54D06M13/352D06M15/643D06M101/12
Inventor 郎明海李禄勇汪士范李瑾李娇玲
Owner 青海大自然地毯纱有限公司