Method for producing Anti-shrinkage animal hair fibers

A manufacturing method and shrink-proof technology, which can be used in fiber processing, animal fibers, textiles and papermaking, etc., can solve problems such as hindering the practical application of liquid-liquid interface polymerization methods and hindering the formation of nylon and polymers, and achieve excellent shrinkage resistance. High performance and thermal insulation

Pending Publication Date: 2021-12-28
东亚纺株式会社 +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the reaction of dibasic acid chloride and water incidentally occurs, resulting in the formation of dicarboxylic acid and hindering the formation of nylon polymers, thus hindering the practical application of liquid-liquid interfacial polymerization methods

Method used

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  • Method for producing Anti-shrinkage animal hair fibers
  • Method for producing Anti-shrinkage animal hair fibers
  • Method for producing Anti-shrinkage animal hair fibers

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0154] The concentration of chloride ions contained in the wool fiber obtained in Example 1 was measured in accordance with the following method. According to JIS K 0127 chloride ion concentration, the wool sample was boiled in distilled water, and the extracted chloride ion was measured by ion chromatography. The measurement was carried out by the Environmental Materials Division of the Industrial Technology Center of "Aichi Center for Industry and Science Technology".

[0155] [table 5]

[0156] Chloride ion concentration (mg / L) measurement results

[0157]

[0158] (Example 1)

[0159] use figure 2 The shown apparatus continuously produces shrink-resistant animal hair fibers according to the following method.

[0160] The first process: at a running speed of 2m / min, put the well-washed wool top yarn ((Aust.MerinoWool Top 18.5μm) 25g / m, (one piece)) in the first bath in the first tank (including 0.2 mol / L of hexamethylenediamine, 0.2 mol / L of sodium hydroxide, and 1...

Embodiment 2

[0171] In addition to changing the concentration of hexamethylenediamine in the first bath to 0.1mol / L, changing the concentration of sodium hydroxide in the first bath to 0.1mol / L, and changing the concentration of sebacic acid dichloride in the second bath to Except that the concentration was changed to 0.1 mol / L, the production and evaluation of shrink-resistant animal hair fibers were performed by the same method as in Example 1.

Embodiment 3

[0173] In addition to changing the concentration of hexamethylenediamine in the first bath to 0.05mol / L, changing the concentration of sodium hydroxide in the first bath to 0.05mol / L, and changing the concentration of sebacic acid dichloride in the second bath to Except that the concentration was changed to 0.05 mol / L, the production and evaluation of shrink-resistant animal hair fibers were performed by the same method as in Example 1.

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Abstract

Provided is a method for efficiently producing anti-shrinkage animal hair fibers having sufficiently high water-resistant launderability in a sliver form while maintaining inherent water repellency as one of features of animal hair fibers without deteriorating the texture and other features. The method for producing anti-shrinkage animal hair fibers is characterized in that a sliver, which is a continuous body of animal hair fibers, is immersed in a diamine aqueous solution containing an alkaline agent at 30-45 DEG C, and immersed in a silicon solvent with a dibasic acid chloride dissolved therein in a state in which the diamine is attached to the sliver, thereby coating the animal hair fibers with a polyamide.

Description

technical field [0001] The present invention provides a method for producing shrink-resistant animal hair fibers excellent in water-based washing resistance, and in particular provides a method for minimizing the discharge of adsorbable organic chlorine compounds from the production process and the residue of chlorine compounds in the fibers. The invention discloses a method for manufacturing a mild-environment shrink-resistant animal hair fiber. Background technique [0002] Regarding the shrinkproof treatment of wool fibres, there has been a general treatise by R.W. Moncrieff in 1953, published by London TheNational Trade Press LTD. The main treatments reported are: chlorination using hypochlorous acid, chloric acid, perchloric acid or chlorine gas, oxidative treatment using potassium permanganate and ozone, chloramine treatment, and enzymatic treatment. However, its mainstream is chlorination, which continues today and has even been applied to knitted fabrics, woven fabr...

Claims

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Application Information

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IPC IPC(8): D06M15/59D06M13/21D06M13/332D06M13/513D06M101/10
CPCD06M15/59D06M13/21D06M13/513D06M13/332
Inventor 梅原亮水森吉纪早川典雄藤井秀行后藤俊次藤田大郎长田好央大桥俊文中岛秀行
Owner 东亚纺株式会社
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