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Synthetic method of pigment printing thickener and the thickener

A technology of paint printing and synthesis method, applied in the field of paint printing thickener, can solve the problem of insufficient modification effect of organosilicon, and achieve the effects of sufficient mixing effect, improved electrolyte resistance and good hand feeling

Active Publication Date: 2019-11-22
DYMATIC CHEM
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  • Application Information

AI Technical Summary

Problems solved by technology

Chinese patent CN100418990C is obtained by mixing acrylic thickener and modified silicone linear body; Chinese patent application CN108677566A adopts modified silicone emulsion blending; Chinese patent application CN105735007A adopts blending hydrophilic silicone oil; the above improvement scheme is due to It is physical mixing, and the modification effect of silicone is not sufficient

Method used

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Embodiment

[0018] 1) Synthesis of long-chain alkylsilane coupling agent: 252.48 parts of 1-octadecene (parts by mass, the same below), heated to 60°C; 1 part of isopropanol solution of 2% chloroplatinic acid was mixed with methyl Mix 106.2 parts of methoxysilane evenly, add it dropwise to 1-octadecene; after adding, heat up and reflux for 4 hours; distill under reduced pressure, collect 0.4kPa, 185-195°C fraction to obtain long-chain alkylsilane coupling agent, Yield 55%;

[0019] 2) Synthesis of hydrophilic organosilicon macromolecules containing long-chain alkyl groups: take 358.67 parts of long-chain alkylsilane coupling agents synthesized in the above steps, 2372.96 parts of octamethylcyclotetrasiloxane, pentamethyldisiloxane 147.34 parts, 36 parts of water, heated up to 55°C under the protection of nitrogen; added 57.58 parts of 98% concentrated sulfuric acid, reacted for 4 hours; then purged the reaction system with nitrogen, took away small molecular substances, and continued to r...

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Abstract

The invention provides a synthetic method of a pigment printing thickener. The synthetic method comprises the following steps: synthesizing a long-chain alkyl silane coupling agent, synthesizing hydrophilic organic silicon macromolecules containing long-chain alkyl, carrying out inverse emulsion polymerization, adding a phase inversion agent and the like. By utilizing the softening and deepening effects of organic silicon, the excellent thickening capacity of polyacrylic acid and the salt tolerance of long-chain alkyl, the novel pigment printing thickener which is good in thickening capacity,high in compatibility with an adhesive, good in electrolyte resistance, deep in color and soft in hand feeling is obtained through step-by-step synthesis and accurate control of reaction conditions.

Description

technical field [0001] The invention relates to the technical field of textile auxiliaries, more specifically, to a method for synthesizing a pigment printing thickener and a pigment printing thickener produced by the method. Background technique [0002] Pigment printing is a printing process that fixes water-insoluble and non-fiber-friendly paint on the surface of fibers with the help of adhesives that can form tough films. Excellent, good color fastness to sunlight, no need to wash, energy-saving and water-saving. [0003] Chinese patent CN102628228B introduces that the thickener is a kind of rheology additive, which plays a decisive role in controlling the rheology of the system. Pigment printing is a printing method in which polymer compounds are used to form a thin film on the fabric and the pigment is fixed on the fabric. Adding a thickener to the printing paste can increase its viscosity, reduce its fluidity, and make it pseudoplastic. Under the action of shear fo...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08F283/12C08F220/06C08F220/56C08F2/32D06P1/52
CPCC08F283/124C08F2/32D06P1/5257C08F220/06
Inventor 刘军周晨刘平华
Owner DYMATIC CHEM
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