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

Salt-free low-alkali cellulose fiber modified dyeing process

A technology of cellulose fiber and alkali modification, which is applied in the dyeing process of cellulose fiber and the field of non-salt and low-alkali modified dyeing process of cellulose fiber, can solve the problem that it is not suitable for large-scale production, the dyeing residue has high chroma, Wastewater is difficult to treat and other problems, to achieve the effect of not easy to hydrolyze, uniform dyeing, difficult to diffuse and penetrate

Inactive Publication Date: 2015-04-01
HMEI THREAD CO LTD OF YINBIN SICHUAN
View PDF6 Cites 3 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0015] The present invention aims to solve the following problems in the process of dyeing the cellulose fibers after modification in order to reduce the consumption of dyes, inorganic salts and alkali in the prior art: The degree of pollution is high, and the discharged wastewater is difficult to treat, causing pollution; and the existing salt-free and low-alkali modified dyeing process cannot be applied to large-scale industrial production

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
  • Salt-free low-alkali cellulose fiber modified dyeing process
  • Salt-free low-alkali cellulose fiber modified dyeing process
  • Salt-free low-alkali cellulose fiber modified dyeing process

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0078] Cellulose fiber dyeing process:

[0079] The salt-free and low-alkali modified dyeing process of cellulose fibers comprises the following process steps:

[0080] A. Cellulose fiber modification treatment

[0081] Put the cellulose fiber into the container, add water to the container, and then modify the cellulose fiber with two cationic modifiers, the small molecule quaternary ammonium salt cationic modifier and the high molecular quaternary ammonium salt cationic modifier After the modification treatment is completed, modified cellulose fibers are obtained; the small molecular quaternary ammonium salt cationic modifier is an azetidine cationic compound, and the high molecular quaternary ammonium salt cationic modifier is polyamide polyamide Amine epichlorohydrin;

[0082] B. Washing treatment

[0083] Washing the modified cellulose fibers obtained through the modification treatment in step A;

[0084] C. Dyeing

[0085] Putting the modified cellulose fibers washed...

Embodiment 2

[0090] Cellulose fiber dyeing process:

[0091] The salt-free and low-alkali modified dyeing process of cellulose fibers comprises the following process steps:

[0092] A. Cellulose fiber modification treatment

[0093]Put the cellulose fiber into the container, add water to the container, and then modify the cellulose fiber with two cationic modifiers, the small molecule quaternary ammonium salt cationic modifier and the high molecular quaternary ammonium salt cationic modifier After the modification treatment is completed, modified cellulose fibers are obtained; the small molecular quaternary ammonium salt cationic modifier is an azetidine cationic compound, and the high molecular quaternary ammonium salt cationic modifier is polyamide polyamide Amine epichlorohydrin;

[0094] B. Washing treatment

[0095] Washing the modified cellulose fibers obtained through the modification treatment in step A;

[0096] C. Dyeing

[0097] Putting the modified cellulose fibers washed ...

Embodiment 3

[0103] The small molecule quaternary ammonium salt cationic modifier of the present invention is an azetidine cationic compound;

[0104] The polymer quaternary ammonium salt cationic modifier of the present invention is polyamide polyamine epichlorohydrin.

[0105] Azetidine cationic compounds:

[0106]

[0107] Polyamide polyamine epichlorohydrin:

[0108]

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 relates to a salt-free low-alkali cellulose fiber modified dyeing process, belonging to the technical field of textile dyeing. The dyeing process comprises the steps of cellulose fiber modification treatment, water washing treatment, dyeing and after-treatment, wherein in the step of cellulose fiber modification treatment, an azetidine cationic compound and polyamide polyamine epichlorohydrin are adopted for modification treatment of cellulose fibers. The salt-free low-alkali cellulose fiber modified dyeing process has the beneficial technical effects that two kinds of specific modifiers are adopted, the synergistic effects of the modifiers are given play to and the specific dyeing steps are provided, so that salt-free low-alkali dyeing of the cellulose fibers is achieved, pollution is reduced, the cost is saved, the process is simplified, the difficulty is reduced, and the modification and dyeing effects are good; therefore the dyeing process is suitable for large-scale industrial production.

Description

technical field [0001] The invention relates to a dyeing process of cellulose fibers, more specifically, the invention relates to a salt-free and low-alkali modified dyeing process of cellulose fibers, which belongs to the technical field of textile dyeing. Background technique [0002] The dye uptake rate of traditional cellulose fiber dyeing process is generally around 40-70%. The dye uptake rate is low and there are many floating colors. In order to achieve the purpose of color fixation, the hydroxyl groups on the cellulose need to be ionized under strong alkaline conditions, so a large amount of soda ash must be added to the dyeing solution in the later stage of dyeing. The treatment of inorganic salts and alkalis has always been a problem that plagues the industry. A large amount of inorganic salts that are neither recyclable nor degradable are discharged into rivers and lakes, seriously polluting water quality. Due to the high permeability of salt, the surrounding soil...

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): D06P1/66D06P1/52D06P3/60D06P5/22
Inventor 廖周荣段太刚贾卫平何大雄汤伟黄金洪张海刘志军
Owner HMEI THREAD CO LTD OF YINBIN SICHUAN
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