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Black water-based color paste for acrylic stock solution coloring and preparation method of black water-based color paste

A technology of water-based color paste and stock solution coloring, which is applied in the fields of dyeing, textiles and papermaking, etc., to achieve the effect of improving poor hydrophilicity, small particle size and high stability

Active Publication Date: 2013-04-10
SUZHOU SUNMUN TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] In order to overcome the above-mentioned technical defects, the present invention provides a black water-based color paste for acrylic fiber stock solution coloring and a preparation method thereof. The black water-based color paste prepared by the method has the characteristics of small particle size and high stability in acrylic fiber spinning stock solution , and there will be no clogging of the spinneret hole and large color difference during spinning

Method used

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  • Black water-based color paste for acrylic stock solution coloring and preparation method of black water-based color paste
  • Black water-based color paste for acrylic stock solution coloring and preparation method of black water-based color paste

Examples

Experimental program
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Effect test

Embodiment 1

[0032] This embodiment is an oxidation embodiment of carbon black. Stir and disperse 1000g carbon black, 5000g deionized water, and 50g hydrogen peroxide in the reactor at a speed of 5r / min for 30min, use an ozone generator to provide 3% ozone mass concentration, and enter the reactor from the bottom at a speed of 5L / min. After 5 hours of treatment , adjust the pH value to 7.5 with 10% sodium hydroxide solution, filter and dry.

Embodiment 2

[0034] This embodiment is an oxidation embodiment of carbon black. Stir and disperse 800g carbon black, 5000g deionized water, and 20g sodium persulfate in the reactor at a speed of 5r / min for 1h, provide 3% ozone mass concentration with an ozone generator, and enter the reactor from the bottom at a speed of 5L / min. After 3 hours, adjust the pH value to 7.2 with 15% potassium hydroxide solution, filter and dry.

Embodiment 3

[0036] This embodiment is an oxidation embodiment of carbon black. Stir and disperse 500g carbon black, 5000g deionized water, and 25g sodium hypochlorite in the reactor at a speed of 5r / min for 45min, use an ozone generator to provide 3% ozone mass concentration, and enter the reactor from the bottom at a speed of 5L / min. After 2 hours of treatment , adjust the pH value to 8.0 with 20% potassium hydroxide solution, filter and dry.

[0037] Embodiments 4~6 and comparative examples 7~10 are all produced according to the following processing steps:

[0038] (1) Knead the oxidized carbon black and pigment surface treatment agent in a kneader for 0.5~1 hour;

[0039] (2) Dissolve the dispersant and sodium thiocyanate in co-solvent and deionized water, and disperse in the disperser at a speed of 500-800r / min for 15-20min to obtain a premixed solution;

[0040] (3) Reduce the speed of the disperser to 300~400r / min, add the carbon black kneaded in (1) to the premixed liquid obtaine...

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Abstract

The invention discloses black water-based color paste for acrylic stock solution coloring, and a preparation method of the black water-based color paste. The black water-based color paste prepared by the method takes carbon black after oxidation treatment as a pigment, the disadvantage of poor surface hydrophilicity of the common carbon black is avoided, a butyl sodium naphthalene sulfonate salt and 2-naphthalene sulfonic acid methanal polymer sodium salt composite dispersing agent system is used cooperatively, and a pigment surface treating agent, a cosolvent, sodium thiocyanate, bactericide and deionized water are taken as common ingredients, wherein the dispersing agent is mixed by butyl sodium naphthalene sulfonate salt and 2-naphthalene sulfonic acid methanal polymer sodium salt at a mass ratio of 1:(2-5). The obtained black water-based color paste for the acrylic stock solution coloring has the characteristics of small particle size and high stability in an acrylic spinning stock solution, and blocking of a spinneret orifice and greater chromatic aberration do not appear in a spinning process.

Description

technical field [0001] The invention relates to a water-based color paste for stock solution coloring and a preparation method thereof, in particular to a black water-based color paste for acrylic fiber stock solution coloring and a preparation method thereof, belonging to the field of color paste preparation. Background technique [0002] Dope coloring is a method in which coloring agents are added to the spinning dope of chemical fibers for spinning to directly produce colored chemical fibers. The colored fiber prepared by this technology has small color difference and high light fastness. More importantly, the downstream chemical fiber dyeing link is omitted, which has a very obvious effect on reducing the cost of chemical fiber dyeing and promoting energy saving and emission reduction, and has a good development prospect. . [0003] When using the sodium thiocyanate wet spinning process to manufacture colored acrylic fibers, the water-based color paste for dope coloring...

Claims

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Application Information

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IPC IPC(8): D06P3/70D06P1/00D06P1/44D06P1/62D06P1/56
Inventor 吕仕铭杜长森梅成国付少海张明俊
Owner SUZHOU SUNMUN TECH CO LTD
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