Preparation method and application of a reactive polyquaternium salt type formaldehyde-free color-fixing crosslinking agent

A quaternary ammonium salt-type, formaldehyde-free color-fixing technology, which is applied in the field of fine polymer material preparation, can solve the problems of poor color fastness and small influence of cellulose fiber fabrics, and improve color fastness and fastness , The effect of simple synthesis process

Active Publication Date: 2019-03-29
SICHUAN TEXTILE SCI RES INST +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The technical problem to be solved by the present invention is that the color fastness of cellulose fiber fabrics dyed by reactive dyes or direct dyes is relatively poor, and the purpose is to provide a preparation method of reactive polyquaternary ammonium salt type formaldehyde-free color-fixing crosslinking agent And application, can significantly improve the color fastness of dyed fabrics, and has little effect on the waterproof effect of dyed fabrics

Method used

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  • Preparation method and application of a reactive polyquaternium salt type formaldehyde-free color-fixing crosslinking agent
  • Preparation method and application of a reactive polyquaternium salt type formaldehyde-free color-fixing crosslinking agent
  • Preparation method and application of a reactive polyquaternium salt type formaldehyde-free color-fixing crosslinking agent

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Experimental program
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Embodiment 1～12

[0028] The preparation method of reactive polyquaternium salt type formaldehyde-free color-fixing cross-linking agent is:

[0029] A. Dimethyl diallyl ammonium chloride, N-(3-dialkylaminopropyl)acrylamide monomer, N,N-dialkylaminoethyl acrylate monomer, acrylamide The monomer, vinylpyrrolidone and deionized water are added into the reaction kettle, and the stirring is started to completely dissolve the added monomer to form a mixed solution. Feed nitrogen into the mixed solution of the reactor to replace the oxygen in the reactor, after being warmed up to the reaction temperature listed in Tables 1 and 2, slowly add the aqueous solution of the initiator dropwise to the mixed solution, and control the dropping time as shown in Table 1 And the dropwise time listed in table 2, after dropwise is completed, carry out constant temperature reaction and make quaternary ammonium salt type cationic polymer after the time shown in table 1 and 2;

[0030] B. After cooling the quaternary ...

Embodiment 13

[0045] Add 90g of dimethyl diallylammonium chloride, 5g of acrylamide, 3g of vinylpyrrolidone and 148g of deionized water into the reactor, start stirring to completely dissolve the added monomers; Oxygen in the reaction kettle is heated up to 90°C; 2g of 10% aqueous potassium persulfate solution with a monomer mass fraction of 0.2% is slowly added dropwise, and the dropping time is controlled for 1.0h. Quaternary ammonium salt type cationic color fixing agent.

[0046] Application process of reactive polyquaternium salt-type formaldehyde-free color-fixing crosslinking agent and quaternary ammonium salt-type cationic color-fixing agent:

[0047] The pure cotton fabric dyed by 4% reactive red 3BSN (Zhejiang Longsheng Co., Ltd.) is fixed: the reactive polyquaternium type formaldehyde-free solid content of 40% to 50% of the solid content obtained in Examples 1 to 12 is Color crosslinking agent and the quaternary ammonium salt type cationic color-fixing agent of embodiment 13 gai...

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Abstract

The invention discloses a preparation method of a reactive polyquaternium formaldehyde-free color fixing crosslinking agent. The preparation method comprises the following preparation steps: A, preparing a quaternary ammonium salt cationic polymer from dimethyl diallyl ammonium chloride, N-(3-dialkyl amino propyl) acrylamide monomer, N,N-dialkyl amino ethyl acrylate monomer, acrylamide monomer and vinyl pyrrolidone; B, preparing the reactive polyquaternium formaldehyde-free color fixing crosslinking agent through the reaction of the quaternary ammonium salt cationic polymer prepared in the step A and epichlorohydrin. The reactive polyquaternium formaldehyde-free color fixing crosslinking agent is suitable for fixing colors of a reactive dye, a direct dye and an acid dye. The color fastness of a dyed fabric is remarkably improved, and the influence on the waterproof performance of the dyed fabric is relatively low.

Description

technical field [0001] The invention relates to a preparation method and application of a fine polymer material, in particular to a preparation method and application of a reactive polyquaternary ammonium salt-type formaldehyde-free color-fixing crosslinking agent. Background technique [0002] Cotton fiber is a kind of natural fiber, which has a series of advantages such as good warmth retention and hygroscopicity in wearing performance, so it occupies an important position in natural fibers. At present, the dyes used for cotton fiber dyeing mainly include: direct dyes, reactive dyes and vat dyes. The molecular structure of direct dyes contains a certain amount of hydrophilic carboxylic acid groups and sulfonic acid groups, which mainly rely on van der Waals force and hydrogen bonds to bond with fibers, making the rubbing fastness of dyed fabrics poor, especially the wet rubbing fastness is poor , faded, stained seriously. The molecular structure of reactive dyes contains...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08F226/02C08F220/60C08F220/56C08F226/10C08F220/54C08F220/34C08F8/00D06P5/08D06P5/22D06P1/38D06P1/00D06P1/39
CPCC08F8/00C08F220/34C08F220/60C08F226/02D06P1/00D06P1/38D06P1/39D06P5/08D06P5/22C08F220/56C08F226/10C08F220/54
Inventor 樊武厚韩丽娟罗艳辉梁娟吴晋川黄玉华蒲宗耀蒲实陈松
Owner SICHUAN TEXTILE SCI RES INST
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