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A kind of high light resistance stability coated pigment paste and preparation method thereof

A technology for coating pigments and stability, which is applied in the field of high light resistance and stability coated pigment paste and its preparation, which can solve the problems of color paste for wet-spun fiber dope coloring, etc., and achieve good spinnability, Small particle size distribution, excellent migration resistance and light stability

Active Publication Date: 2020-08-04
SUZHOU SUNMUN TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, there are few reports on the use of cyanuric chloride-modified reactive hindered amine light stabilizers for the coating modification of pigments, and there is no use of this reactive hindered amine for the preparation of viscose or acrylic fiber, etc. The report of the color paste used for the dope coloring of wet-spun fiber

Method used

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  • A kind of high light resistance stability coated pigment paste and preparation method thereof
  • A kind of high light resistance stability coated pigment paste and preparation method thereof
  • A kind of high light resistance stability coated pigment paste and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0036] Example 1: Preparation of light-stable coated phthalocyanine blue 15:3 (C.I.Pigment Blue 15:3) pigment paste

[0037] Get 40 grams of phthalocyanine blue 15:3 pigment, 8 grams of n-lauryl ether dispersant, 340 grams of deionized water, stir and disperse for 30 minutes, place the dispersed material in a grinder and grind 3 times to obtain phthalocyanine Cyan blue pigment water-based dispersion system, then add 10 grams of styrene, 0.40 grams of reactive hindered amine A, 0.80 grams of macromolecular co-stabilizer (wherein, x=0.70, y=0.25, z=0.05, weight average molecular weight 400), 0.30 g of 1-hydroxycyclohexyl phenyl ketone, homogeneously dispersed for 20 minutes at a stirring speed of 5000 rpm, then transferred to a reaction vessel, heated to 70 ° C, and applied ultraviolet light to irradiate the reaction. The radiation intensity was 1.2mW / cm2, reacted for 10 hours, lowered to normal temperature, adjusted the pH value to 8.5, and obtained the polymer-coated phthalocy...

Embodiment 2

[0038] Example 2: Preparation of light-stable coated Fast Yellow 5GX (C.I.Pigment Yellow 74) pigment paste

[0039] Take 20 grams of Fast Yellow 5GX (C.I.Pigment Yellow 74), 6 grams of non-ionic dispersant Tween-85, and 370 grams of deionized water. After stirring and dispersing for 30 minutes, put the dispersed material in a grinder and grind it 5 times. Obtain superfine pigment yellow water-based dispersion system, add 5 gram methyl methacrylates therein then, 0.40 gram reactive hindered amine B, 0.40 gram macromolecule co-stabilizer (x=0.15, y=0.75, z=0.10, weight The average molecular weight is 600), 0.20 grams of 2,2-dimethoxy-phenyl ketone, homogeneously dispersed for 5 minutes at a stirring speed of 24000 rpm, then transferred to a reaction vessel, heated to 75 ° C, and applied Reaction by ultraviolet light irradiation, the light radiation intensity is 1.4mW / cm2, react for 8 hours, lower to normal temperature, add a pH regulator to adjust the pH value to 8, and obtain t...

Embodiment 3

[0040] Example 3: Preparation of light-stable coated permanent red DGR (C.I.Pigment Red 112) pigment paste

[0041] Get 30 grams of permanent red DGR (C.I.Pigment Red 112) pigment, 12 grams of nonionic dispersant Span-85, 350 grams of deionized water, stir and disperse for 30 minutes, put the dispersed material in a grinder and grind 3 times to prepare Obtain superfine pigment red water-based dispersion system, then add 6 grams of styrene, 3 grams of butyl acrylate, 0.12 grams of reactive hindered amine C, 0.22 grams of polymer co-stabilizer

[0042] (x=0.60, y=0.30, z=0.10, weight average molecular weight is 800), 0.80 gram of 2-hydroxyl-2-methyl-1-phenyl-1-propanone, homogeneously The substance was dispersed for 10 minutes, then transferred to a reaction vessel, heated to 90°C, and irradiated with ultraviolet light to react, the light radiation intensity was 1.6mW / cm2, reacted for 6 hours, cooled to room temperature, and added a pH value regulator to adjust the pH value to 1...

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Abstract

The invention discloses a preparation method of a high photostability pigment cladded color paste. The preparation method comprises following steps: 1, an organic pigment, a dispersant, and deionizedwater are subjected to stirring dispersion and grinding so as to obtain an ultrafine organic pigment aqueous dispersion; and 2, a reaction type hindered amine light stabilizer, a high molecular co-stabilizer, a comonomer, and a photoinitiator are added into the ultrafine organic pigment aqueous dispersion, emulsion is carried out, and photoinitiation polymerization is carried out so as to obtain the high photostability pigment cladded color paste. According to the preparation method, the high photostability pigment cladded color paste is prepared via photopolymerization of the reaction type hindered amine light stabilizer and the comonomer , and is used for wet method fiber stock solution coloring; the high photostability pigment cladded color paste is small in particle size distribution range, excellent in spinnability, pigment migration fastness, and photostability.

Description

technical field [0001] The invention relates to the technical field of fine chemicals, in particular to a highly light-resistant and stable coated pigment paste and a preparation method thereof. Background technique [0002] Pigments are the second largest coloring body after dyes in the printing and dyeing industry. They have significant advantages in energy saving and environmental protection, and are widely used in fibers, inks, paints, and latex. The pigment paste can be prepared by stably dispersing the pigment in the water-based system, adding the paste to the spinning stock solution of wet-spun fibers such as viscose and acrylic fibers, and directly spinning the stock solution coloring technology of colored fibers, which can reduce the traditional dyeing process. The problems of high energy consumption and high waste water discharge are the fiber coloring technology that has been applied on a large scale in China in recent years. However, when organic pigments are us...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): D06P1/00D06P1/52C08F212/08C08F220/14C08F216/14C08F220/18
CPCC08F212/08C08F220/14D06P1/00D06P1/5221D06P1/5242D06P1/525C08F216/1458C08F220/1804
Inventor 吕仕铭杜长森梁栋胡冲徐利伟
Owner SUZHOU SUNMUN TECH CO LTD