Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Low-temperature cashmere dyeing method adopting ethanolamine for pretreatment

A low-temperature dyeing and pretreatment technology, applied in the field of low-temperature dyeing of cashmere, can solve the problems of holes in the garment, falling off, and the yarn strength does not meet the standard requirements, and achieves the effect of improving the spinnability of the yarn and reducing the damage.

Inactive Publication Date: 2013-08-28
TAICANG SHARTEX SHENTAI SWEATER
View PDF0 Cites 10 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] After conventional dyeing of cashmere fibers, the yarn strength often fails to meet the standard requirements during the spinning process, and even falls below the standard by 20% to 30%. Seriously affect product quality and production progress

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
View more

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0016] The cashmere is pretreated with ethanolamine at a concentration of 6g / l, at a temperature of 30°C, a bath ratio of 1:50, in a water bath for 10 minutes, and steamed at 100°C for 5 minutes. After pretreatment, use acid scarlet GR with a volume concentration of 5%. Dye, 6g / l Yuanmingfen, 8g / l Pingpingjia 0, adjust the pH value to 4, take a water bath, the bath ratio is 1:50, the time is 60min, add a low-temperature additive with a volume concentration of 0.5% at 80°C JL-D staining.

Embodiment 2

[0018] The cashmere is pretreated with ethanolamine at a concentration of 10g / l, at a temperature of 30°C, with a bath ratio of 1:50, in a water bath for 20 minutes, and at 100°C, steamed for 10 minutes. After pretreatment, use Doric with a volume concentration of 10%. Emperor Orange WNGR dye, 6g / l Yuanming powder, 8g / l Pingpingjia 0, adjust the pH value to 5, water bath, bath ratio 1:50, time 80min, add volume concentration of 2% at 80°C Low temperature auxiliary agent ZJ-W dyeing.

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
Login to View More

PUM

No PUM Login to View More

Abstract

The invention discloses a low-temperature cashmere dyeing method adopting ethanolamine for pretreatment. The method is characterized by pretreating cashmere with ethanolamine at a concentration of 6-10g / l at 30 DEG C in a bath ratio of 1:50, carrying out water bathing for 10-20 minutes, carrying out steaming for 5-10 minutes at 100 DEG C, after pretreatment, using a dye with volume concentration of 5-10%, adding 6g / l anhydrous sodium sulfate and 8g / l peregal 0, regulating the pH value to 4-5, carrying out water bathing and adding a low-temperature aid for dyeing at 80 DEG C, wherein the dye is an acid dye or a reactive dye; the bath ratio of water bathing in the dyeing step is 1:50 and the time is 60-80 minutes; the low-temperature aid is JL-D or ZJ-W; and the volume concentration of the low-temperature aid is 0.5-2%. The method has the obvious advantages that the strength of the yarns after dyeing is 15% higher than that after normal dehaired wool dyeing; the yarn spinnability can be greatly improved; and the damages of dyeing to fibers can be reduced.

Description

technical field [0001] The invention relates to a low-temperature dyeing method for cashmere, in particular to a low-temperature dyeing method for cashmere pretreated with ethanolamine. Background technique [0002] After conventional dyeing of cashmere fibers, the yarn strength often fails to meet the standard requirements during the spinning process, and even falls below the standard by 20% to 30%. Seriously affect product quality and production progress. Contents of the invention [0003] Purpose of the invention: The purpose of the present invention is to provide a method of pretreatment with ethanolamine, through low-temperature dyeing, to increase the yield of worsted cashmere yarn, improve spinnability, and reduce the damage caused by dyeing to fibers. [0004] In order to realize the above-mentioned purpose of the invention, the technical scheme adopted in the present invention is: [0005] A low-temperature dyeing method for cashmere using ethanolamine pretreatm...

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
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): D06P3/16D06P3/14D06P1/44
Inventor 杜士良
Owner TAICANG SHARTEX SHENTAI SWEATER
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com