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

A low-temperature dyeing method for pure wool yarn

A wool yarn, low-temperature dyeing technology, applied in the field of yarn, can solve the problems of long time consumption and low wool pretreatment rate, and achieve the effect of facilitating electrostatic adsorption

Active Publication Date: 2018-01-30
赤峰圣伦绒毛制品有限公司
View PDF6 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, due to the existence of scales, wool itself has a certain water repellency, and most of the ionic liquids have a certain viscosity, and the amount of ionic liquid that penetrates into the interior of the wool fiber is small, which ultimately shows that the pretreatment rate of ionic liquids on wool is low. Preprocessing takes a long time

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

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • A low-temperature dyeing method for pure wool yarn

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] The low-temperature dyeing method of pure wool yarn in embodiment 1 (abbreviated as S1, the following embodiments are the same) comprises the following steps:

[0027] S1: Prepare the dye mixing solution, which contains reactive dyes, sodium sulfate, soluble rare earth chloride, pH regulator and water, and the weight ratio of wool yarn to reactive dye is 1:0.02; wool yarn and The weight ratio of rare earth chloride is 1:0.001, and the pH value of the dye mixture solution is 4.5;

[0028] S2: Immerse the dry yarn in the ionic liquid, heat it with microwave for 2 minutes, cool down to room temperature, keep it for 20 minutes, and take out the yarn;

[0029] S3: rolling and drying the yarn obtained in S2;

[0030] S4: Dip the yarn obtained in S3 into the dye mixture solution obtained in S1, heat up to 30°C, keep it warm for 2 hours, then raise the temperature to 60°C again, keep it warm for 1 hour, and then cool down;

[0031] S5: Take out the yarn and dry it naturally, ...

Embodiment 2

[0034] The difference between embodiment 2 and embodiment 1 is:

[0035] S1: Prepare the dye mixing solution, which contains reactive dyes, sodium sulfate, soluble rare earth chloride, pH regulator and water, and the weight ratio of wool yarn to reactive dye is 1:0.045; wool yarn and The weight ratio of rare earth chloride is 1:0.005, and the pH value of the dye mixture solution is 4.5-5.5;

[0036]S2: Immerse the dry yarn in the ionic liquid, heat it with microwave for 5 minutes, cool down to room temperature, keep it for 40 minutes, and take out the yarn;

[0037] S3: rolling and drying the yarn obtained in S2;

[0038] S4: Dip the yarn obtained in S3 into the dye mixture solution obtained in S1, heat up to 35°C, keep it warm for 5 hours, then heat it up to 75°C again, keep it warm for 3 hours, and then cool down;

[0039] S5: Take out the yarn and dry it naturally, then wash it with water for many times, dehydrate and dry it to get the dyed wool yarn.

[0040] The pH reg...

Embodiment 3

[0042] The difference between embodiment 2 and embodiment 1 is:

[0043] S1: Prepare the dye mixing solution, which contains reactive dyes, sodium sulfate, soluble rare earth chloride, pH regulator and water, the weight ratio of wool yarn to reactive dye is 1:0.0325; wool yarn and The weight ratio of rare earth chloride is 1:0.003, and the pH value of the dye mixture solution is 5;

[0044] S2: Immerse the dry yarn in the ionic liquid, heat it with microwave for 3.5 minutes, cool down to room temperature, keep it for 30 minutes, and take out the yarn;

[0045] S3: rolling and drying the yarn obtained in S2;

[0046] S4: Dip the yarn obtained in S3 into the dye mixture solution obtained in S1, heat up to 32°C, keep it warm for 3.5 hours, then raise the temperature to 67°C again, keep it warm for 2 hours, and then cool down;

[0047] S5: Take out the yarn and dry it naturally, then wash it with water for many times, dehydrate and dry it to get the dyed wool yarn.

[0048] The...

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

PropertyMeasurementUnit
poweraaaaaaaaaa
Login to View More

Abstract

The invention discloses a low temperature dyeing method of pure wool yarns. The method comprises the steps of dye mixed solution preparation, yarn pretreatment, dyeing, and post-treatment. The wool yarns are pretreated through adopting an ionic liquid and microwave technology combination technology to accelerate partial stripping of scales of wool fibers. The low temperature dyeing method avoids the step of cleaning of the wool yarns with an organic solvent in the prior art, and directly introduces a small amount of an ionic liquid to a dye mixed solution; fatty acid and cystine disulfide bonds on the surface of the pretreated wool fibers are destroyed, and soluble rare earth chloride is added to the dye solution to accelerate entrance of dye molecules to apertures in the wool fibers under low temperature conditions; and the small amount of the ionic liquid in wool can adjust the electricity of the surface of wool, is in favor of realizing electrostatic adsorption between the wool and a dye molecule complex, and realizes the dyeing assisting function.

Description

technical field [0001] The invention relates to the technical field of yarns, in particular to a low-temperature dyeing method for pure wool yarns. Background technique [0002] The traditional high-temperature dyeing of wool not only consumes a lot of energy, but also makes the wool suffer from chemical reagents and heat at high temperature, causing the wool to turn yellow, greatly affecting the fiber appearance and physical and mechanical properties, and destroying the excellent natural quality of wool. At present, there are chlorine salt oxidation pretreatment methods, formic acid pretreatment methods, and biological enzyme pretreatment methods for wool low-temperature dyeing methods at home and abroad. In the chlorine salt oxidation pretreatment method, no matter it is sodium dichloroisocyanurate (DCCA) or sodium hypochlorite, AOX will be produced during use, which will cause certain pollution to the environment; in the formic acid pretreatment method, the amount of form...

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 Patents(China)
IPC IPC(8): D06P3/14D06P1/38D06P1/673D06P1/642D06P5/20
CPCD06P1/38D06P1/6426D06P1/67358D06P3/008D06P3/148D06P5/20
Inventor 赵军伟林红
Owner 赤峰圣伦绒毛制品有限公司
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