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Modified cellulose fibers obtained through modification

A cellulose fiber modification technology, applied in the field of modified cellulose fiber and cellulose fiber, can solve the problems of high chroma of dyeing raffinate, large amount of alkali consumption, difficult treatment of waste water, etc., to avoid dye flocculation and uniform dyeing , Modified uniform effect

Inactive Publication Date: 2015-02-18
YIBIN SPARK NEW FIBER CO LTD
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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 modified cellulose fiber is used for the process of dyeing without salt and low alkali modification, which cannot be applied to large-scale industrial production

Method used

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  • Modified cellulose fibers obtained through modification
  • Modified cellulose fibers obtained through modification
  • Modified cellulose fibers obtained through modification

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0060] Modified cellulose fibers:

[0061] The modified cellulose fiber obtained through modification, the modified cellulose fiber is made of cellulose fiber through a small molecular quaternary ammonium salt cationic modifier and a high molecular weight quaternary ammonium salt cationic modifier as a cationic modifier, Carry out modification treatment, when the obtained pH value is 6.5-8.5, the Zeta electrode potential value is the modified cellulose fiber of 0-25mV; Described small molecule quaternary ammonium salt cationic modifier is epoxy quaternary ammonium salt compound, The high molecular weight quaternary ammonium salt cationic modifier is a cationic polyacrylamide compound.

[0062] The above is the modified cellulose fiber of the present invention. 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 but also diffuse into the fiber, while the high molecular weig...

Embodiment 2

[0064] Modified cellulose fibers:

[0065] The modified cellulose fiber obtained through modification, the modified cellulose fiber is made of cellulose fiber through a small molecular quaternary ammonium salt cationic modifier and a high molecular weight quaternary ammonium salt cationic modifier as a cationic modifier, Carry out modification treatment, when the pH value that obtains is 6.5, the Zeta electrode potential value is the modified cellulose fiber of 25mV; Described small molecule quaternary ammonium salt cationic modifier is epoxy quaternary ammonium salt compound, and described high The molecular quaternary ammonium salt cationic modifier is a cationic polyacrylamide compound.

Embodiment 3

[0067] Modified cellulose fibers:

[0068] The modified cellulose fiber obtained through modification, the modified cellulose fiber is made of cellulose fiber through a small molecular quaternary ammonium salt cationic modifier and a high molecular weight quaternary ammonium salt cationic modifier as a cationic modifier, Carry out modification treatment, when the obtained pH value is 8.5, the Zeta electrode potential value is the modified cellulose fiber of 0mV; Described small molecule quaternary ammonium salt cationic modifier is epoxy quaternary ammonium salt compound, and described high The molecular quaternary ammonium salt cationic modifier is a cationic polyacrylamide compound.

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Abstract

The invention relates to modified cellulose fibers obtained through modification, belonging to the technical field of textile dyeing. The modified cellulose fibers are obtained by carrying out modification treatment on cellulose fibers with low molecular quaternary ammonium salt cationic modifiers and high molecular quaternary ammonium salt cationic modifiers as cationic modifiers and have Zeta electrode potential values of 0-25mV when the pH values are 6.5-8.5, wherein the low molecular quaternary ammonium salt cationic modifiers are epoxy quaternary ammonium salt compounds; the high molecular quaternary ammonium salt cationic modifiers are cationic polyacrylamide compounds. 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 cellulose fibers, more specifically, the modified cellulose fibers obtained through modification, 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 and becomes alkaline. It is a very difficul...

Claims

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Application Information

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Patent Type & Authority Applications(China)
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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