Cationization modifying technology of cellulose fiber

A technology of cationic modification and cellulose fiber, which is applied in the field of textile dyeing, can solve the problems of inapplicability to large-scale production, high chroma of dyeing raffinate, difficult wastewater treatment, etc., and achieve high production efficiency, good cationic effect, Effect of Dye Consumption Reduction

Pending Publication Date: 2015-03-11
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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  • Cationization modifying technology of cellulose fiber
  • Cationization modifying technology of cellulose fiber
  • Cationization modifying technology of cellulose fiber

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 an azetidine cationic compound, and the high molecular quaternary ammonium salt cationic modifier is polyamide polyamide Amine epichlorohydrin.

[0062] The above process is the cellulose fiber modification process of the present invention, and the modified cellulose fiber can be obtained with a Zeta electrode potential value of 0-20mV when the pH value is 6.5-8.5. 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 ...

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 an azetidine cationic compound, and the high molecular quaternary ammonium salt cationic modifier is polyamide polyamide Amine epichlorohydrin.

[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 f...

Embodiment 3

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

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

[0071] Azetidine cationic compounds:

[0072]

[0073] Polyamide polyamine epichlorohydrin:

[0074]

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Abstract

The invention relates to a cationization modifying technology of a cellulose fiber, and belongs to the technical field of dope dyeing. The modifying technology of the cellulose fiber disclosed by the invention comprises the following steps: putting the cellulose fiber into a container, adding water to the container, then performing modified treatment on the cellulose fiber by using two kinds of cation modifying agents of a micromolecular quaternary ammonium salt cation modifying agent and a macromolecular quaternary ammonium salt cation modifying agent, and after finishing the modified treatment, obtaining the modified cellulose fiber. The micromolecular quaternary ammonium salt cation modifying agent is an azetidine cation compound, and the macromolecular quaternary ammonium salt cation modifying agent is polyamide polyamine epoxy chloropropane. The method disclosed by the invention adopts two kinds of specific modifying agents and has the function of the synergistic effect of the two agents, so that the salt-free low-alkaline dyeing for the cellulose fiber is realized in the subsequent dyeing, pollution is reduced, the cost is saved, the technology is simplified, the difficulty is reduced, and the modifying effect and the subsequent dyeing effect are good, so that the method is suitable for the industrial mass production.

Description

technical field [0001] The invention relates to a treatment process of cellulose fibers, more specifically, the invention relates to a cationization modification process of cellulose fibers, 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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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张乔
Owner HMEI THREAD CO LTD OF YINBIN SICHUAN
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