Cationic modified cellulose fibers

A technology of cationic modification and cellulose fiber, which is applied in the field of modified cellulose fiber and cationic modified cellulose fiber, which can solve the problems of inapplicability to large-scale production, high chroma of dyeing raffinate, and difficult waste water. Dealing with other problems, achieving the effect of high success rate, less difficulty in on-site operation, and reduced dye consumption

Inactive Publication Date: 2015-02-18
YIBIN SPARK NEW FIBER CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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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

Method used

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  • Cationic modified cellulose fibers
  • Cationic modified cellulose fibers
  • Cationic modified cellulose fibers

Examples

Experimental program
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Example Embodiment

[0059] Example 1

[0060] Modified cellulose fiber:

[0061] A cationic modified modified cellulose fiber, said modified cellulose fiber is modified by cellulose fiber through small molecular quaternary ammonium salt cationic modifier and polymer quaternary ammonium salt cationic modifier as cation modification Modified cellulose fiber with a Zeta electrode potential value of -5-15mV when the pH value is 6.5-8.5, and the small molecule quaternary ammonium salt cationic modifier is 3-acrylamide. 2-hydroxypropyl trimethyl ammonium chloride, the polymer quaternary ammonium salt cationic modifier is polyamide polyamine epichlorohydrin.

[0062] The above is the modified cellulose fiber of the present invention. Because the small molecular quaternary ammonium salt cationic modifier has a small molecular weight, it can not only be adsorbed on the surface of the fiber but also diffuse into the fiber, while the high molecular weight quaternary ammonium salt cationic modifier has a large mo...

Example Embodiment

[0063] Example 2

[0064] Modified cellulose fiber:

[0065] A cationic modified modified cellulose fiber, said modified cellulose fiber is modified by cellulose fiber through small molecular quaternary ammonium salt cationic modifier and polymer quaternary ammonium salt cationic modifier as cation modification Modified cellulose fiber with a pH of 6.5 and a Zeta electrode potential of 15mV; the small-molecule quaternary ammonium salt cationic modifier is 3-acrylamide-2-hydroxypropyl Trimethylammonium chloride, the polymer quaternary ammonium salt cationic modifier is polyamide polyamine epichlorohydrin.

Example Embodiment

[0066] Example 3

[0067] Modified cellulose fiber:

[0068] A cationic modified modified cellulose fiber, said modified cellulose fiber is modified by cellulose fiber through small molecular quaternary ammonium salt cationic modifier and polymer quaternary ammonium salt cationic modifier as cation modification Modified cellulose fiber with a Zeta electrode potential value of -5mV when the pH value is 8.5; the small molecule quaternary ammonium salt cationic modifier is 3-acrylamide-2-hydroxyl Propyl trimethyl ammonium chloride, the polymer quaternary ammonium salt cationic modifier is polyamide polyamine epichlorohydrin.

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Abstract

The invention relates to cationic modified cellulose fibers, belonging to the technical field of textile dyeing. The modified cellulose fibers are obtained by carrying out modification treatment on cellulose fibers with a low molecular quaternary ammonium salt cationic modifier and a high molecular quaternary ammonium salt cationic modifier as cationic modifiers and have Zeta electrode potential values of minus 5-15mV when the pH values are 6.5-8.5, wherein the low molecular quaternary ammonium salt cationic modifier is 3-acrylamide-2-hydroxypropyl trimethylammonium chloride; the high molecular quaternary ammonium salt cationic modifier is polyamide polyamine epichlorohydrin. The modified cellulose fibers have the beneficial technical effects that the two kinds of specific modifiers are adopted and the synergistic effects of the modifiers are given play to, so that the modified cellulose fibers achieve salt-free low-alkali dyeing in subsequent dyeing, have the effects of reducing pollution, saving the cost, simplifying the process and reducing the difficulty, have good modification and subsequent dyeing effects, and are suitable for large-scale industrial production.

Description

technical field [0001] The invention relates to a modified cellulose fiber, more specifically, the invention relates to a cationized modified modified cellulose fiber, 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 is salinized and becomes alkaline...

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
Owner YIBIN SPARK NEW FIBER CO LTD
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