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

Pretreatment technology for yarn before dyeing

A yarn dyeing and pretreatment technology, which is applied in the textile field, can solve the problems of wasting time, increasing production costs, wasting raw materials, reagents, water, energy, etc., and achieves the effects of simple process operation, saving costs, saving time and raw materials and reagents

Active Publication Date: 2017-09-01
GUANGDONG ESQUEL TEXTILES CO LTD
View PDF4 Cites 3 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This not only wastes time, but also further wastes raw material reagents, water, energy, etc., increasing production costs

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
  • Pretreatment technology for yarn before dyeing
  • Pretreatment technology for yarn before dyeing
  • Pretreatment technology for yarn before dyeing

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0043] The pretreatment process and the dyeing method before the dyeing of the yarn of the present embodiment include the following steps (the process flow chart is as follows: Figure 1-2 shown):

[0044] (1) Put pure cotton yarn in a cage, put it in a dyeing vat, add chelating dispersant AVOLAN IS, refining agent KF-110, caustic soda, graft modifier mordant DB, water, and run the pump for 2 to 3 minutes ;

[0045] Wherein, the dosage of graft modifier mordant DB is 3% of the yarn weight; the mass ratio of yarn to water is 1:11; the concentration of chelating dispersant AVOLAN IS is 0.8g / L; the refining agent KF The concentration of -110 is 0.8g / L; the concentration of caustic soda is 2g / L;

[0046] (2) Add hydrogen peroxide (27.5%) and hydrogen peroxide activator Prestogen LTB liq, in water, the concentration of hydrogen peroxide (27.5%) is 4.5g / L; The consumption of hydrogen peroxide activator is 1.5g / L;

[0047] (3) Raise the temperature to 80°C at a heating rate of 2°C...

Embodiment 2

[0055] The pretreatment process and the dyeing method before the yarn dyeing of the present embodiment comprise the following steps:

[0056] (1) Put pure cotton yarn in a cage, put it in a dyeing vat, add chelating dispersant AVOLAN IS, refining agent KF-110, caustic soda, graft modifier mordant DB, water, and run the pump for 2 to 3 minutes ;

[0057] Among them, the amount of graft modifier mordant DB is 2% of the weight of the yarn; the mass ratio of yarn to water is 1:5; the concentration of the chelating dispersant AVOLAN IS is 1.0g / L; the refining agent KF The concentration of -110 is 1.0g / L; the concentration of caustic soda is 2g / L;

[0058] (2) Add hydrogen peroxide (27.5%) and hydrogen peroxide activator Prestogen LTB liq, in water, the concentration of hydrogen peroxide (27.5%) is 8g / L; The consumption of hydrogen peroxide activator is 3g / L;

[0059] (3) Raise the temperature to 70°C at a heating rate of 3°C / min, keep it warm for 60 minutes, discharge the liquid ...

Embodiment 3

[0067] The pretreatment process and the dyeing method before the yarn dyeing of the present embodiment comprise the following steps:

[0068] (1) Put pure cotton yarn in a cage, place it in a dyeing vat, add chelating dispersant AVOLAN IS, refining agent KF-110, caustic soda, graft modifier mordant DB, water, and run the pump for 2 minutes;

[0069] Among them, the amount of graft modifier mordant DB is 5% of the weight of the yarn; the mass ratio of yarn to water is 1:20; the concentration of the chelating dispersant AVOLAN IS is 0.7g / L; the refining agent KF The concentration of -110 is 0.7g / L; the concentration of caustic soda is 2g / L;

[0070] (2) Add hydrogen peroxide (27.5%) and hydrogen peroxide activator Prestogen LTB liq, in water, the concentration of hydrogen peroxide (27.5%) is 5g / L; The consumption of hydrogen peroxide activator is 0.8g / L;

[0071] (3) Raise the temperature to 90°C at a heating rate of 2°C / min, keep it warm for 30 minutes, drain the liquid in 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
Concentrationaaaaaaaaaa
Login to View More

Abstract

The invention relates to a pretreatment technology for a yarn before dyeing. The pretreatment technology comprises the following steps of (1) taking the yarn, adding a chelating dispersant, a refining agent, alkali, a graft modifier and water, stirring and mixing, wherein the graft modifier is a quaternary ammonium salt polymer complex and the dosage is 2-5% of weight of the yarn; (2) adding a bleaching agent, raising the temperature to 70-90 DEG C and carrying out heat preservation for 30-60min; and (3) cleaning. According to the pretreatment technology for the yarn before dyeing, by adopting the specific graft modifier and combining a specific pretreatment technology, of dyeing and bleaching pretreatment can be synchronously carried out on the yarn under a relatively low temperature condition, the dyeing rate and the glossiness of the yarn are improved, and the pretreatment technology is good in color fastness, low in energy consumption, friendly to environment and low in cost.

Description

technical field [0001] The invention relates to the textile field, in particular to a pretreatment process before yarn dyeing. Background technique [0002] With the development of industry, environmental problems are becoming more and more serious, and the technology of energy saving, environmental protection and cost saving is more and more favored by producers. [0003] In the textile field, before dyeing and sizing, the yarn must be pretreated, mainly such as bleaching and scouring, in order to improve the gloss of the yarn. However, the traditional pretreatment process needs to use higher temperature (generally 105-110°C), and the dye uptake rate after pretreatment is poor, resulting in the waste of more dyes in the subsequent yarn dyeing steps, and the higher temperature consumes energy. The excess dyestuff also brings burden to the treatment of sewage. [0004] At present, in order to increase the dyeing rate of yarn, some cationic modification methods are used. Alt...

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
IPC IPC(8): D06P1/52D06P3/60D06P5/22D06L4/12D06L4/13
CPCD06L4/12D06L4/13D06P1/5264D06P1/5292D06P3/60D06P5/22
Inventor 安聪聪杨刚何朝阳
Owner GUANGDONG ESQUEL TEXTILES CO LTD
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