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Modified process for cellulose fiber through modifying agents

A technology of cellulose fibers and modifiers, applied in the field of textile dyeing, can solve the problems of difficult wastewater treatment, large amount of alkali consumption, pollution, etc., and achieve the effect of low cost and sufficient reaction

Pending Publication Date: 2015-03-25
HMEI THREAD CO LTD OF YINBIN SICHUAN
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  • 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 modification process, as well as the follow-up salt-free and low-alkali dyeing process, cannot be applied to large-scale industrial production

Method used

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  • Modified process for cellulose fiber through modifying agents
  • Modified process for cellulose fiber through modifying agents
  • Modified process for cellulose fiber through modifying agents

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0060] Modification process of cellulose fiber:

[0061] 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 epoxy quaternary ammonium salt compound, and the high molecular quaternary ammonium salt cationic modifier is cationic starch.

[0062] The above-mentioned process is the cellulose fiber modification process of the present invention, and when the pH value is 6.5-8.5, the modified cellulose fiber with a Zeta electrode potential value of -2-20mV is obtained. Due to the small molecular weight of the small molecular quaternary ammonium salt cationic modifier, it can not only be adsorbed on the surface of the fiber ...

Embodiment 2

[0064] Modification process of cellulose fiber:

[0065] 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 epoxy quaternary ammonium salt compound, and the high molecular quaternary ammonium salt cationic modifier is cationic starch.

[0066] The cellulose fibers are selected from viscose filaments, viscose staple fibers, modal, tencel, cotton fibers, yarns and fabrics made from the aforementioned cellulose fibers.

[0067] The modification process of the present invention is applicable to all kinds of cellulose fibers, and also includes twisted yarns (hank form or cheese form) of these cellulose fibers, or fabrics ...

Embodiment 3

[0069] The small molecule quaternary ammonium salt cationic modifier of the present invention is an epoxy quaternary ammonium salt compound;

[0070] The polymer quaternary ammonium salt cationic modifier of the present invention is cationic starch.

[0071] Epoxy quaternary ammonium compound:

[0072]

[0073] Cationic starch modifier:

[0074]

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Abstract

The invention relates to a modified process for cellulose fiber through modifying agents, and belongs to the technical field of textile dyeing. The modified process comprises the following steps: putting the cellulose fiber into a container, adding water into the container, and then conducting modified treatment on the cellulose fiber through two cation modifying agents of a micromolecule quaternary ammonium salt cation modifying agent and a macromolecule quaternary ammonium salt cation modifying agent, so as to obtain the modified cellulose fiber after the modified treatment, wherein the micromolecule quaternary ammonium salt cation modifying agent is a compound of epoxy quaternary ammonium salt, and the macromolecule quaternary ammonium salt cation modifying agent is cationic starch. The two specific modifying agents are adopted and play the function of a synergistic effect, so that salt-free low-alkaline dyeing of the modified cellulose fiber in the follow-up dyeing is realized, the pollution as well as the cost is reduced, the process is simplified, the difficulty is reduced, the modified and follow-up dyeing effects are good, and industrialized mass production is facilitated.

Description

technical field [0001] The invention relates to a process for treating cellulose fibers, more specifically, the invention relates to a process for modifying cellulose fibers with a modifier, and 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 is salinized...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D06P1/66D06P1/48D06P3/60D06P5/22
Inventor 廖周荣段太刚贾卫平何大雄汤伟张海刘志军
Owner HMEI THREAD CO LTD OF YINBIN SICHUAN
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