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Preparation method of nanometer titanium dioxide modified color-fixing agent emulsion

A nano-titanium dioxide and nano-silicon dioxide technology is applied in the field of preparation of nano-titanium dioxide modified fixing agent emulsion, which can solve the problems of poor color fastness to rubbing, poor water resistance, etc., and achieves enhanced dyeing performance, increased surface energy, high The effect of adsorption rate

Inactive Publication Date: 2019-03-12
HUAIHAI INST OF TECH +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] But the existing color fixing agent also has the defects of poor color fastness to rubbing and poor water resistance.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] A method for preparing a nano-titanium dioxide modified color-fixing agent emulsion. The color-fixing agent emulsion is made of the following raw materials in parts by weight: 15 parts of modified nano-titanium dioxide dispersion liquid, 40 parts of water-based polyurethane, 4 parts of hydroxypropyl silicone oil, polyol 9 parts, 7 parts of shellac, 5 parts of methyl methacrylate, 2 parts of initiator, 750 parts of water;

[0029] Wherein, polyhydric alcohol is pentaerythritol;

[0030] The preparation steps of modified nano silicon dioxide dispersion liquid are as follows:

[0031] At room temperature, dissolve 1 part of glacial acetic acid and 15 parts of butyl titanate in 100 parts of absolute ethanol while stirring to obtain a mixed solution A, and then add 45 parts of nanometer titanium dioxide powder to the mixed solution A in a constant temperature water bath at 60°C and 11 parts of chitosan, mix evenly to obtain modified nano silicon dioxide dispersion;

[0032...

Embodiment 2

[0037] A method for preparing a nano-titanium dioxide modified color-fixing agent emulsion. The color-fixing agent emulsion is made of the following raw materials in parts by weight: 20 parts of modified nano-titanium dioxide dispersion liquid, 25 parts of water-based polyurethane, 12 parts of hydroxypropyl silicone oil, polyol 14 parts, 3 parts of shellac, 10 parts of methyl methacrylate, 0.5 parts of initiator, 700 parts of water;

[0038] Wherein, polyhydric alcohol is propylene glycol;

[0039] The preparation steps of modified nano silicon dioxide dispersion liquid are as follows:

[0040] At room temperature, dissolve 5 parts of glacial acetic acid and 10 parts of butyl titanate in 120 parts of absolute ethanol while stirring to obtain a mixed solution A, and then add 60 parts of nanometer titanium dioxide powder to the mixed solution A in a constant temperature water bath at 50°C and 7 parts of chitosan, mix evenly to obtain the modified nano silicon dioxide dispersion...

Embodiment 3

[0046] A method for preparing a nano-titanium dioxide modified color-fixing agent emulsion. The color-fixing agent emulsion is made of the following raw materials in parts by weight: 16 parts of modified nano-titanium dioxide dispersion liquid, 35 parts of water-based polyurethane, 5 parts of hydroxypropyl silicone oil, polyol 10 parts, 6 parts of shellac, 7 parts of methyl methacrylate, 1.5 parts of initiator, 740 parts of water;

[0047] Wherein, polyhydric alcohol is one or more in pentaerythritol, propylene glycol, neopentyl glycol;

[0048] The preparation steps of modified nano silicon dioxide dispersion liquid are as follows:

[0049] At room temperature, dissolve 3 parts of glacial acetic acid and 14 parts of butyl titanate in 105 parts of absolute ethanol while stirring to obtain a mixed solution A, and then add 50 parts of nanometer titanium dioxide powder to the mixed solution A in a constant temperature water bath at 55°C and 10 parts of chitosan, mix evenly to ob...

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Abstract

The invention provides a preparation method of a nanometer titanium dioxide modified color-fixing agent emulsion. The nanometer titanium dioxide modified color-fixing agent emulsion is prepared from,by weight, 15-20 parts of modified nanometer titanium dioxide dispersion, 25-40 parts of waterborne polyurethane, 4-12 part of hydroxypropyl silicone oil, 9-14 parts of polyols, 3-7 parts of lac, 5-10parts of methyl methacrylate, 0.5-2 parts of an initiator and 700-750 parts of water. The preparation method of the nanometer titanium dioxide modified color-fixing agent emulsion comprises the stepsof 1) preparing the modified nanometer titanium dioxide dispersion; 2) preparing mixed liquor B; 3) mixing the modified nanometer titanium dioxide dispersion, the mixed liquor B and the other materials in an emulsifying reactor for a while to obtain the nanometer titanium dioxide modified color-fixing agent emulsion. Quasi-esterification reaction is applied herein to performing surface treatmenton the titanium dioxide, thus improving dispersibility of nanoparticles in organic matters and further enhancing the mechanical performance of a color-fixing agent.

Description

technical field [0001] The invention relates to the technical field of color-fixing agents, in particular to a method for preparing a nano-titanium dioxide-modified color-fixing agent emulsion. Background technique [0002] Nano-titanium dioxide is a rutile-type white loose powder, which has strong ultraviolet shielding effect, good dispersion and weather resistance. With anti-thread, antibacterial, self-cleaning, anti-aging properties, it can be used in cosmetics, functional fibers, plastics, inks, coatings, paints, fine ceramics and other fields. [0003] Fixing agent is one of the important auxiliary agents in the printing and dyeing industry. It can improve the color fastness of dyes on fabrics to wet treatment. It can form insoluble colored matter with dyes on fabrics to improve the color fastness to washing and perspiration, and sometimes to improve its light fastness. [0004] Although some dyes can dye brighter colors, due to the water-soluble groups on the dyes, t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D06P5/10D06P5/08D06P5/04
CPCD06P5/04D06P5/08D06P5/10
Inventor 徐国想孟庆方赵跃强徐美君查鹏程
Owner HUAIHAI INST OF TECH
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