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Odorless thickening agent for reactive dye printing and preparation method thereof

A technology of reactive dyes and thickeners used in dyeing, textiles and papermaking

Pending Publication Date: 2021-09-24
CHANGSHU IRRADIATION TECH APPL FACTORY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The main technical problem to be solved by the present invention is to provide a kind of odorless thickener for reactive dye printing and its preparation method, which can solve the above-mentioned shortcomings of the existing polyacrylic thickener in reactive dye printing

Method used

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  • Odorless thickening agent for reactive dye printing and preparation method thereof

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preparation example Construction

[0026] A preparation method for an odorless thickener for reactive dye printing, specifically comprising the steps of:

[0027] (1) Adding 18 to 25% of the sodium hydroxide solution, potassium hydroxide solution or lithium hydroxide solution to a mass concentration of 25 to 35% in sodium hydroxide solution, potassium hydroxide solution or lithium hydroxide solution Acrylic acid or methacrylic acid or a mixture of acrylic acid and methacrylic acid mixed in any proportion, after the dropwise addition, add acrylic acid amide or methacrylic acid amide or acrylic acid amide mixed in any proportion with a mass percentage of 5-10% The mixture with methacrylic acid amide, the cationic monomer with a mass percentage of 1-3%, and the cross-linking monomer with a mass percentage of 1-3%, are fully stirred to dissolve, cooled, and an aqueous phase is obtained;

[0028] By using the cationic monomer to participate in the polymerization reaction, a cationic group can be introduced into the ...

Embodiment 1

[0039] Add 220kg of acrylic acid dropwise to 335kg of sodium hydroxide aqueous solution (mass fraction is 32%). After the dropwise addition, add 70kg of acrylamide, 20kg of methacryloyloxyethyltrimethylammonium chloride, 20kg of N,N'- Methylenebisacrylamide and 110kg of water were fully stirred and dissolved and cooled to obtain an aqueous phase;

[0040] Fully stir 40kg stearyl acrylate, 200kg kerosene, 16kg Span 80 and 40kg linseed oil to make an oil phase;

[0041] Transfer the oil phase to the emulsification tank, and add the water phase to the oil phase dropwise under high shear stirring at 1500r / min for 20 minutes. After the addition, continue to stir for 30 minutes to form a stable oil layer. Water-based inverse pre-emulsion.

[0042] Transfer the pre-emulsion to the polymerization reactor, stir, continue to feed nitrogen for 15-20 minutes, discharge the oxygen in the reactor, raise the temperature to 65°C, and add ammonium persulfate aqueous solution dropwise (2kg of ...

Embodiment 2

[0046] Add 220 kg of acrylic acid dropwise to 335 kg of sodium hydroxide aqueous solution (mass fraction 32%). After the dropwise addition, add 70 kg of acrylamide, 10 kg of methacrylamide, 30 kg of acryloyloxyethyl dimethyl benzyl ammonium chloride, 10 kg of N,N'-methylenebisacrylamide, 10kg hydroxyethyl methacrylate, 110kg water were fully stirred and dissolved and cooled to obtain an aqueous phase;

[0047] Fully stir 30kg of behenyl acrylate, 10kg of cetyl acrylate, 200kg of kerosene, 16kg of Span 80, and 40kg of linseed oil to make an oil phase;

[0048] Transfer the oil phase to the emulsification tank, and add the water phase to the oil phase dropwise under high-shear stirring at 2000r / min for 20 minutes. After the addition, continue to stir for 30 minutes to form a stable oil layer. Water-based inverse pre-emulsion.

[0049] Transfer the pre-emulsion to the polymerization reactor, stir, continue to feed nitrogen for 15-20 minutes, discharge the oxygen in the reactor, ...

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Abstract

The invention discloses an odorless thickening agent for reactive dye printing and a preparation method thereof. The odorless thickening agent comprises an alkali solution, acrylic acid and / or methacrylic acid, acrylamide and / or methacrylamide, a cationic monomer, water, a crosslinking monomer, acrylic acid long-chain alkyl ester, white oil, span, linseed oil, a diverting agent and an initiator. The preparation method comprises the following steps: preparing a water phase, preparing an oil phase, preparing a reversed-phase pre-emulsion, carrying out reversed-phase pre-emulsion polymerization, and carrying out emulsion phase inversion and deodorization treatment. According to the reactive dye printing thickening agent, the white oil is selected, kerosene and water in the reactive dye printing thickening agent are evaporated and removed in the vacuum concentration process of the reactive dye printing thickening agent, and the kerosene is replaced by the white oil, so that on one hand, the odor of the thickening agent due to the kerosene is effectively removed, odorless treatment is realized, and on the other hand, the concentration and salt resistance of the thickening agent are also improved; and the prepared thickening agent finished product is low in moisture content, free of oil-water phase layering phenomenon, free of corruption caused by bacterium breeding, stable in performance and long in shelf life.

Description

technical field [0001] The invention relates to the field of textile auxiliaries, in particular to an odorless thickener for reactive dye printing and a preparation method thereof. Background technique [0002] Polyacrylic acid thickener is a network polymer that swells but does not dissolve in water. It has strong water absorption performance, good biocompatibility, non-toxicity and stable properties, and is favored by the market. At present, polyacrylic acid thickeners are mainly used in pharmaceuticals, coatings and adhesives, daily chemicals, printing and dyeing textiles and other fields. [0003] Existing polyacrylic acid series thickeners almost all contain kerosene, such as the non-ionic and acidic side group modified polyacrylic acid thickener and its preparation method disclosed in Chinese patent CN 111995718 A, which uses 0.6-6% of pure water quality. 0.8 times kerosene. And kerosene has a bad smell, even odorless kerosene will give off a bad smell, and this smel...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08F220/06C08F220/56C08F220/34C08F222/38C08F220/18C08F220/20C08F220/32C08F2/32D06P1/52D06P1/38
CPCC08F220/06C08F2/32D06P1/5257D06P1/38C08F220/56C08F220/34C08F222/385C08F220/1818C08F220/20C08F220/1812C08F220/325
Inventor 程玉国刘广志
Owner CHANGSHU IRRADIATION TECH APPL FACTORY