High-pigment-content color master batch as well as preparation method and application thereof

A color masterbatch and pigment technology, which is applied in the preparation of carboxylate, chemical instruments and methods, and preparation of organic compounds, etc., can solve the problems of poor compatibility between pigments and polyester carriers, uneven color of colored polyester fibers, and color masterbatches. The problem of uneven distribution of granular pigments, etc., can achieve the effect of strong color fastness to washing, reduced silk floating, and good dispersion performance.

Pending Publication Date: 2022-05-31
SUZHOU SUNMUN TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] However, the existing masterbatch pigments prepared from common commercial pigments are unevenly distributed in the polyester carrier, and the compatibility between the pigment and the polyester carrier is poor, resulting in easy clogging of the filter during the polyester fiber spinning process. machine and spinneret hole, the prepared colored polyester fiber has uneven color and poor washing fastness
Surface modification of pigments is a common method for improving the performance of color masterbatches; for example, U.S. Patent No. 8,124,672 introduces a method for preparing self-dispersing pigments containing carboxylate-based water-soluble anionic surfactants. The self-dispersing Pigments are mainly used to prepare color masterbatches for plastics; U.S. Patent US7459017 introduces a method for preparing self-dispersing pigments that can be dispersed by simple stirring. diameter, and then dried into granules to obtain self-dispersing pigments; in this method, the alkyne dispersant accounts for 5-40% of the pigment mass, and the manufacturing cost is relatively high
However, the self-dispersing pigments prepared by the above method have not yet been reported to be used for the preparation of high-pigment content fiber masterbatches.

Method used

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  • High-pigment-content color master batch as well as preparation method and application thereof
  • High-pigment-content color master batch as well as preparation method and application thereof
  • High-pigment-content color master batch as well as preparation method and application thereof

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preparation example Construction

[0060] The present invention further provides a preparation method of the high-pigment content color masterbatch, comprising the steps of:

[0061] (a) According to the number of parts by mass, the carrier and additives are pulverized and mixed with the self-dispersing pigment evenly to obtain a mixed powder; in addition, the carrier and additives need to be dewatered before use to avoid the moisture in the mixed powder Degrade polyester during heating and melting;

[0062] (b) injecting the mixed powder into an extruder for granulation to obtain a color masterbatch with high pigment content for polyester fibers.

[0063] In the above method, the extruder is a twin-screw extruder or a single-screw extruder, the screw speed of the extruder is 200-300 rpm, and the temperature of the extruder is 240-275°C.

[0064] The color masterbatch with high pigment content of the invention can be used in polyester fiber spinning to prepare colored polyester fiber.

Embodiment 1

[0077] Add 1.5 parts of Surfactant A1 and 1.5 parts of Surfactant B1 to 62 parts of water, mix well, add 35 parts of Pigment Blue 15:3, grind and dry to obtain Self-dispersing pigments.

[0078] The polyester carrier that the mass is 62 parts, the antioxidant 1010 that the mass is 1 part, the diatomite that the mass is 1 part, the 2-(2-hydroxyl-5-tert-octylphenyl) benzo that the mass is 1 part After the triazole is ground, it is uniformly mixed with 35 parts of self-dispersing pigment by mass to obtain a mixed powder; the mixed powder is injected into an extruder for granulation to obtain a high-pigment content color masterbatch.

Embodiment 2

[0080] Add 1 part of Surfactant A2 and 2 parts of Surfactant B2 to 50 parts of water, mix well, add 20 parts of Pigment Red 122, grind and dry to obtain self-dispersing pigment.

[0081] 75 parts by mass of polyester carrier, 1 part by mass of antioxidant 1010, 1 part by mass of synthetic silica, 1 part by mass of 2-(2-hydroxyl-3,5-di-tert-butylbenzene Base)-5-chlorobenzotriazole, 2 parts of 2,4-dihydroxybenzophenone by mass are pulverized and mixed evenly with 20 parts of self-dispersing pigments by mass to obtain a mixed powder; the mixed powder Inject into the extruder for granulation to obtain high pigment content masterbatch.

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Abstract

The invention discloses a high-pigment-content color master batch as well as a preparation method and application thereof. The color master batch comprises the following components in parts by mass: 50-75 parts of a carrier; 20 to 45 parts of a self-dispersing pigment; 1-5 parts of an auxiliary agent; the preparation method of the self-dispersing pigment comprises the following steps: adding 1-2 parts by mass of a surfactant A and 1-2 parts by mass of a surfactant B into 50-75 parts by mass of water, uniformly mixing, adding 20-45 parts by mass of a pigment, grinding, and drying to obtain the self-dispersing pigment. The preparation method comprises the following steps: uniformly mixing the carrier, the auxiliary agent and the self-dispersing pigment, and granulating by an extruder to obtain the color master batch with high pigment content. The color master batch is good in dispersing performance, can be well dispersed in polyester and is good in compatibility with the polyester; and the pigment concentration in the color master batch is high, the addition amount during melt spinning is small, and the influence on polyester is small.

Description

technical field [0001] The invention belongs to the technical field of fine chemicals, and in particular relates to a color masterbatch with high pigment content and a preparation method and application thereof. Background technique [0002] Polyester is a polymer obtained by polycondensation of polyacids and polyols, mainly polyethylene terephthalate, which has excellent fiber-forming properties, creep resistance, abrasion resistance, heat resistance, and Corrosion, electrical insulation and other properties, widely used in fiber, packaging, engineering plastics and other fields. In my country, synthetic fibers containing more than 85% of polyethylene terephthalate components are called polyester fibers, and the trade name is polyester. After being stretched and shaped during the spinning process, polyester fibers are neatly arranged in linear chains, with high crystallinity, good orientation, small inter-molecular gaps, and difficult penetration of dyes. There are no hydr...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08J3/22C08L67/02C08K9/04C08K3/013C08K5/00D01F1/04D01F6/92C08G65/26C08G65/333C07C69/734C07C67/31C09K23/42C09K23/34
CPCC08J3/226D01F1/04D01F6/92C08G65/2615C08G65/33355C07C67/31C07C69/734C08J2467/02C08K9/08C08K9/04C08K3/013C08K5/0041
Inventor 冯淑芹杨德佑吕品解亚楠
Owner SUZHOU SUNMUN TECH CO LTD
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