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Preparation method of defoamer for textile printing and dyeing

A textile printing and dyeing, defoaming agent technology, applied in the field of defoaming agents, can solve the problems of poor dispersion of silicone, no defoaming activity, too large particle size, etc., and achieve good defoaming, improved viscosity, and stable quality.

Inactive Publication Date: 2020-05-05
湖北新四海化工股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In recent years, organosilicon-based defoamers have attracted widespread attention due to their high defoaming efficiency, low dosage, and no physiological toxicity. However, silicones have poor dispersibility, are difficult to emulsify, and tend to condense into oversized oils that have no defoaming activity. beads, while pure silicone oil has no defoaming effect on the foam of aqueous solution

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] A kind of defoamer for textile printing and dyeing, in parts by mass, is made by following steps:

[0021] S1, after mixing 20 parts of polydimethylsiloxane, 8 parts of high carbon alcohol, 4 parts of zinc stearate, 5 parts of tributyl phosphate, 4 parts of monoglyceride fatty acid ester, and 0.5 part of potassium hydrogen persulfate, Stir evenly to prepare liquid A;

[0022] S2, add 3 parts of sodium hexametaphosphate, 2 parts of sorbitan fatty acid and 3 parts of carboxymethyl cellulose into 85 parts of deionized water, and stir evenly to obtain liquid B;

[0023] S3, mix liquid A and liquid B at 70°C, heat up to 100°C and stir evenly, then add 15 parts of hydrophobic silicon dioxide and keep warm for 30 minutes to prepare a defoamer for textile printing and dyeing.

Embodiment 2

[0025] A kind of defoamer for textile printing and dyeing, in parts by mass, is made by following steps:

[0026] S1, after mixing 30 parts of polymethyltriethoxysilane, 5 parts of higher carbon alcohol, 5 parts of zinc stearate, 8 parts of tributyl phosphate, 2 parts of monoglyceride fatty acid ester, and 2 parts of potassium hydrogen persulfate , and stir evenly to prepare liquid A;

[0027] S2, add 3 parts of sodium hexametaphosphate, 5 parts of polysorbate and 1.5 parts of carboxyethyl cellulose into 70 parts of deionized water, and stir evenly to prepare liquid B;

[0028] S3, mix liquid A and liquid B at 60°C, heat up to 90°C and stir evenly, then add 30 parts of hydrophobic silicon dioxide and 3 parts of antifoaming agent for textile printing and dyeing, and keep warm for 40 minutes to prepare the antifoaming agent for textile printing and dyeing foaming agent.

Embodiment 3

[0030] A kind of defoamer for textile printing and dyeing, in parts by mass, is made by following steps:

[0031] S1, after mixing 40 parts of polymethyltrimethoxysilane, 15 parts of higher carbon alcohol, 5 parts of zinc stearate, 6 parts of tributyl phosphate, 4 parts of monoglyceride fatty acid ester, and 1 part of potassium hydrogen persulfate, Stir evenly to prepare liquid A;

[0032] S2, add 2 parts of sodium hexametaphosphate, 3 parts of fatty acid esters of glycerol and 2 parts of xanthan gum into 75 parts of deionized water, and stir evenly to prepare liquid B;

[0033] S3, mix liquid A and liquid B at 65°C, heat up to 95°C and stir evenly, then add 20 parts of hydrophobic silicon dioxide, 2 parts of defoamer for textile printing and dyeing, and 2 parts of glutaraldehyde, and keep warm for 35 minutes. Prepare the defoamer for textile printing and dyeing.

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PUM

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Abstract

The invention belongs to the technical field of defoamers, and particularly relates to a preparation method of a defoamer for textile printing and dyeing. The preparation method of the defoamer for textile printing and dyeing comprises the following steps: S1, mixing polysiloxane, high alcohols, zinc stearate, tributyl phosphate, monoglyceride fatty acid ester and potassium hydrogen persulfate, and uniformly stirring to obtain a solution A; S2, adding sodium hexametaphosphate, a surfactant and a thickener into deionized water, and uniformly stirring to obtain a solution B; and S3, mixing the solution A and the solution B at 60-70 DEG C, heating to 90-100 DEG C, uniformly stirring, adding hydrophobic silicon dioxide and a bactericide, and keeping the temperature for 30-40 minutes to obtainthe defoamer for textile printing and dyeing. The prepared defoamer for textile printing and dyeing has good defoaming and foam inhibition characteristics, is stable in quality after long-term storageand use, and has a very good use value.

Description

technical field [0001] The invention belongs to the technical field of defoamers, in particular to a method for preparing a defoamer for textile printing and dyeing. Background technique [0002] In the fields of oil and gas extraction, pulp and paper, textile printing and dyeing, biological fermentation, sewage treatment, coating processing and construction industry, the foam generated by stirring will cause problems such as reduced production capacity, prolonged reaction cycle and waste of raw materials. Adding a defoamer can eliminate foam in a short time. Defoamers can be divided into mineral oil defoamers, polyether defoamers and silicone defoamers. Mineral oil defoamers can only be used under the conditions of small liquid shear force and moderate foaming ability of the surfactant contained, and their ability to eliminate dense foam is poor. [0003] Polyether defoamers can only play a defoaming effect when the temperature of the foaming system exceeds the cloud poin...

Claims

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Application Information

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IPC IPC(8): B01D19/04D06P1/52D06P1/651D06P1/653D06P1/667D06P1/673
CPCB01D19/0404B01D19/0409B01D19/0418D06P1/5292D06P1/65125D06P1/6533D06P1/667D06P1/67366D06P1/67383D06P1/67391
Inventor 邵玲龚家全杨帆
Owner 湖北新四海化工股份有限公司
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