Polymer coated pigment color paste for coloring viscose fiber stock solution and preparation method thereof

A technology of coating pigments and dope coloring, applied to artificial filaments made of viscose, etc., can solve problems such as poor spinnability, poor color fastness to washing of fibers, and clogged spinneret holes, etc., to achieve water-resistant color fastness High density, good spinnability, and not easy to clog

Inactive Publication Date: 2019-09-17
SUZHOU SUNMUN TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In order to overcome the shortcomings of the existing color pastes in the spinning process of viscose collagen solution, such as spinneret hole blockage, poor spinnability,

Method used

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  • Polymer coated pigment color paste for coloring viscose fiber stock solution and preparation method thereof
  • Polymer coated pigment color paste for coloring viscose fiber stock solution and preparation method thereof
  • Polymer coated pigment color paste for coloring viscose fiber stock solution and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

specific Embodiment 1

[0047] S1: Mix 30 parts by mass of phthalocyanine blue 15:3, 2 parts by mass of polymerizable dispersant A1, and 48.96 parts by mass of deionized water, stir and disperse for 30 minutes, then grind it in a sand mill for 6 times to obtain ultrafine pigments water-based dispersion;

[0048] S2: After adding 2 parts by mass of styrene, 2 parts by mass of maleic anhydride and 0.04 parts by mass of ammonium persulfate to the ultrafine pigment water-based dispersion obtained in step S1, mix them uniformly, then transfer them to the reaction vessel, under nitrogen protection and temperature Stirring and reacting under the condition of 75°C for 4 hours to obtain a polymer-coated pigment paste precursor;

[0049] S3: Add 5 parts by mass of alkanolamide B1 and 0.01 part by mass of mordenite to the polymer-coated pigment paste precursor obtained in step S2, under the condition of nitrogen protection and temperature control at 75°C, stir and react for 3 hours and then filter After removi...

specific Embodiment 2

[0051] S1: Mix 10 parts by mass of carbon black, 3 parts by mass of polymerizable dispersant A2, and 66.98 parts by mass of deionized water, stir and disperse for 40 minutes, then grind them in a sand mill for 3 times to obtain an ultrafine pigment water-based dispersion ;

[0052] S2: After adding 1 mass part of styrene, 3 mass parts of maleic anhydride and 0.02 mass part of potassium persulfate to the ultrafine pigment water-based dispersion obtained in step S1, mix them uniformly, then transfer them to the reaction vessel, under nitrogen protection and temperature Stirring and reacting under the condition of 90°C for 3 hours to obtain a polymer-coated pigment paste precursor;

[0053] S3: Add 6 parts by mass of alkanolamide B2 and 0.01 part by mass of mordenite to the polymer-coated pigment paste precursor obtained in step S2, and filter after stirring for 3 hours under nitrogen protection and temperature control at 90°C After removing the mordenite, 3 parts by mass of sod...

specific Embodiment 3

[0055] S1: Mix 50 parts by mass of titanium dioxide, 2 parts by mass of polymerizable dispersant A3, and 33.44 parts by mass of deionized water, stir and disperse for 45 minutes, then grind 8 times in a sand mill to obtain an ultrafine pigment water-based dispersion ;

[0056] S2: Add 3 parts by mass of styrene, 1 part by mass of maleic anhydride, 0.03 parts by mass of potassium persulfate and 0.03 parts by mass of sodium persulfate to the ultrafine pigment water-based dispersion obtained in step S1, mix well, and then transfer to the reaction vessel , under the condition of helium protection and temperature control at 60°C, stirring and reacting for 6 hours to obtain a polymer-coated pigment paste precursor;

[0057] S3: Add 3 parts by mass of alkanolamide B3 and 0.01 part by mass of mordenite to the polymer-coated pigment paste precursor obtained in step S2, and filter after stirring for 5 hours under nitrogen protection and temperature control at 60°C After removing the mo...

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Abstract

The invention discloses polymer coated pigment color paste for coloring a viscose fiber stock solution and a preparation method thereof. The preparation method comprises the steps: preliminarily coating and dispersing a pigment by using a polymerizable dispersant with a specific chemical structure, then adding styrene, maleic anhydride and an initiator to carry out monomer polymerization to coat the pigment with a polymer, and finally carrying out graft modification on the polymer-coated pigment with alkanolamide. The water-based color paste prepared by the method can be applied to the coloring of the viscose fiber stock solution, and has the advantages of being not prone to spinneret hole blockage, good in spinnability and high in water resistance and color fastness during application.

Description

technical field [0001] The invention relates to a polymer-coated pigment paste and a preparation method thereof, in particular to a polymer-coated pigment paste for viscose fiber stock solution coloring and a preparation method thereof, belonging to the technical field of fine chemicals. Background technique [0002] Fiber stock solution dyeing is to add colorant directly into the spinning stock solution to spin colored fibers. Compared with traditional fiber dyeing, it avoids the problems of high energy consumption and large waste water discharge. Therefore, the manufacture and application of stock solution dyed fiber is very useful. It is beneficial to alleviate the pressure of energy saving and emission reduction in the textile industry. In the coloring process of viscose fiber stock solution, after the viscose spinning stock solution and the color paste are fully mixed, it needs to pass through the spinneret hole with a diameter of 50-80 microns under a certain pressure ...

Claims

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Application Information

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IPC IPC(8): D01F2/08
CPCD01F2/08
Inventor 吕仕铭杜长森梅成国汪理想
Owner SUZHOU SUNMUN TECH CO LTD
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