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Preparation method for ultrathin pigment paste used for coloring viscose filament fiber dope

A technology of dope coloring and viscose filaments, which is applied to fibrous fillers, artificial filaments made of viscose, organic dyes, etc., which can solve the problems of flocculation, uneven particle size distribution and poor filterability of viscose spinning solution and other problems, to achieve good color fastness, small particle size and adhesion, and small color difference

Inactive Publication Date: 2012-07-18
SUZHOU SUNMUN TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In order to overcome the deficiencies in the above-mentioned prior art, the present invention provides a preparation method of ultrafine pigment color paste for viscose filament fiber stock solution coloring, the superfine pigment mill paste used for viscose filament fiber stock solution coloring prepared by the method Fine pigment color paste can overcome the problems of large particles, uneven particle size distribution, poor filterability, and easy flocculation and coarsening in viscose spinning solution of traditional pigment color paste

Method used

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  • Preparation method for ultrathin pigment paste used for coloring viscose filament fiber dope

Examples

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Effect test

Embodiment 1

[0019] Take 20kg of carbon black, 1.2kg of polymerizable dispersant AHPS, and 178.8kg of deionized water, place them in a sand mill and grind them at a speed of 1800r / min for 3 hours to prepare a black ultrafine pigment water-based dispersion system, and then add dropwise Styrene 0.6kg continues to grind 1.5 hours, transfers in the reactor, adopts cobalt 60-gamma ray radiation, and radiation agent consumption is about 300,000 curies, and radiation time is 30 minutes, takes out material and filters with the microporous membrane of 500nm then, namely Black superfine pigment paste for viscose filament stock solution coloring can be obtained.

Embodiment 2

[0021] Take 30kg of C.I. Pigment Yellow 93 powder, 3kg of polymerizable dispersant HMPS, and 167kg of deionized water, place them in a sand mill and grind them at a speed of 2000r / min for 4 hours to obtain a yellow ultrafine pigment water-based dispersion system, and then add them to Add 1.2kg of glycidyl acrylate dropwise and continue to grind for 1.3 hours, transfer to the reactor, adopt cobalt 60-γ ray radiation, the radiation agent consumption is about 600,000 curies, and the radiation time is 120 minutes, filter with a 500nm microporous membrane, The yellow superfine pigment color paste for coloring the viscose long fiber stock solution can be obtained.

Embodiment 3

[0023] Get C.I. Pigment Blue 60 powder 40kg, polymerizable dispersant DMHB8kg, deionized water 152kg, place in a sand mill and grind for 5 hours at a speed of 2500r / min to prepare a blue ultrafine pigment water-based dispersion system, and then add it to the Add dropwise 1.5kg of methyl methacrylate, 0.5kg of lauryl acrylate, continue to grind for 1.2 hours, transfer to the reactor, and adopt cobalt 60-γ ray radiation. The radiation dose is about 20,000 curies, and the radiation time is 30 Minutes, filter with a 500nm microporous membrane to get the blue ultrafine pigment paste for coloring the viscose filament stock solution.

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Abstract

The invention discloses a preparation method for ultrathin pigment paste used for coloring viscose filament fiber dope. The preparation method comprises the following steps of: grinding and dispersing a polymerizable dispersant serving as a main assistant, a pigment and deionized water to obtain an ultrathin pigment water-based dispersion; after dropwise adding comonomers into the dispersion and continuing grinding and dispersing for a period of time, performing irradiation polymerization by using cobalt 60-gamma rays to polymerize the polymerizable dispersant with monomers; and coating the copolymer to the surface of the pigment. The ultrathin pigment paste used for coloring the viscose filament fiber dope prepared by the method is small in particle size, high in stability and free of precipitation after long-time storage; and the spinning dope is high in spinnability, small in color difference and high in color fastness.

Description

technical field [0001] The invention relates to a preparation method of a pigment color paste, in particular to a preparation method of an ultrafine pigment color paste for viscose filament fiber stock solution coloring, and belongs to the field of fine chemicals. Background technique [0002] Viscose fiber stock solution coloring is to disperse the color paste evenly in the viscose fiber spinning solution, form a colored colloidal stream through the spinneret, and then react with the acid bath to produce viscose colored filaments. Compared with traditional dyed silk, dope-dyed viscose fiber reduces the dyeing process, saves costs, reduces environmental pollution, and promotes energy saving and emission reduction in the printing and dyeing industry; moreover, dope-dyed viscose fiber has a small color difference and has better Reproducibility. In the production process, the added color paste has a significant impact on the spinnability of the spinning solution, the color dif...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09B67/42C09C1/48C09C3/04C09C3/10D01F2/08D01F2/16
Inventor 杜长森陈敏张明俊伍金平李华
Owner SUZHOU SUNMUN TECH CO LTD
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