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Oxygen bleaching stabilizer and preparation method and application thereof

A technology of oxygen bleaching stabilizer and chelating agent, applied in the field of oxygen bleaching stabilizer and its preparation, can solve the problems of poor alkali resistance of silica scale, environmental pollution, poor ability to adsorb pigments, etc. Easy-to-use effects

Inactive Publication Date: 2019-07-09
潍坊军涛化工有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The invention provides an oxygen bleaching stabilizer and its preparation method and application, which solves the problem that the silicon-based oxygen bleaching stabilizer in the prior art is easy to form silicon scale, has poor alkali resistance and non-silicon-based oxygen bleaching stabilizer has poor pigment adsorption ability and contains The problem of environmental pollution caused by nitrogen and phosphorus chelating agents

Method used

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preparation example Construction

[0031] A kind of preparation method of oxygen bleaching stabilizer of the present invention comprises the following steps:

[0032] S1: Take surfactant, emulsifier and dispersant, mix evenly, stir for 8-12min to get primary mixture;

[0033] S2: Take the chelating agent and the magnesium salt, add them to the initial mixture obtained in step S1 respectively, and stir for 10-20min to obtain the intermediate mixture;

[0034] S3: Take water, add it to the intermediate mixture obtained in step S2, stir for 30-60 min, and filter to obtain an oxygen bleaching stabilizer.

[0035]An application of the oxygen bleaching stabilizer of the present invention, the oxygen bleaching stabilizer is used in the hydrogen peroxide bleaching process of fabrics.

[0036] Preferably, the oxygen bleaching stabilizer is used in an amount of 0.7-3 g / L in the hydrogen peroxide bleaching process of fabrics.

Embodiment 1

[0038] A kind of preparation method of oxygen bleaching stabilizer of the present invention comprises the following steps:

[0039] S1: Weigh raw materials according to the following parts by weight: chelating agent—6 parts of sodium polyhydroxycarboxylate, 20 parts of surfactant, 5 parts of emulsifier, 6 parts of magnesium salt, 6 parts of dispersant, and 65 parts of water;

[0040] S2: Take surfactant, emulsifier and dispersant, mix evenly, stir for 8 minutes, and get primary mixture;

[0041] S3: Take the chelating agent and the magnesium salt, add them to the primary mixture obtained in step S2 respectively, and stir for 10 minutes to obtain an intermediate mixture;

[0042] S4: Take water, add it to the intermediate mixture obtained in step S3, stir for 30 minutes, and filter to obtain an oxygen bleaching stabilizer.

Embodiment 2

[0044] A kind of preparation method of oxygen bleaching stabilizer of the present invention comprises the following steps:

[0045] S1: Weigh raw materials according to the following parts by weight: chelating agent—8 parts of sodium gluconate, surfactant—20 parts of isomeric carbon tridecyl alcohol polyoxyethylene ether, 4 parts of emulsifier, magnesium salt—magnesium chloride hexahydrate 6 parts, dispersant - 5 parts of sodium polyacrylate, 57 parts of demineralized water;

[0046] Wherein, the preparation method of sodium polyacrylate is:

[0047] 1) Take alkyl alcohol polyoxyethylene ether, add it to water at 60°C, stir evenly, and raise the temperature to 90°C to obtain a mixture;

[0048] 2) Take acrylic acid and sodium persulfate respectively, and add them dropwise to the mixture obtained in step 1) at the same time. During the dropping process, the temperature of the reaction system is 90±2°C. The mass concentrations of oxyethylene ether are 21%, 0.1% and 18% respect...

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Abstract

The invention discloses an oxygen bleaching stabilizer and a preparation method and application thereof. The oxygen bleaching stabilizer comprises the following raw materials in parts by weight: 4-8 parts of a chelating agent, 10-30 parts of a surfactant, 1-5 parts of an emulsifier, 4-8 parts of magnesium salt, 5-9 parts of a dispersing agent and 45-65 parts of water; and the chelating agent is polyhydroxycarboxylate. The invention also provides the preparation method of the oxygen bleaching stabilizer. The oxygen bleaching stabilizer is a novel oxygen bleaching stabilizer which does not contain silicon or nitrogen and phosphorus, and is an environment-friendly oxygen bleaching stabilizer, the oxygen bleaching stabilizer is used for stopping the violent catalytic decomposition effect of free metal ions on hydrogen peroxide in a process of bleaching a fabric by the hydrogen peroxide; breakage of the fabric and reduction of fiber strength are avoided effectively; the bleaching effect isoutstanding, and no silicon scale is generated. The circumstance of silicon scale deposition on the surface of the fabric and the surface of a machine is avoided. The emission of nitrogen and phosphorus in a water body is relieved, and the decomposition rate of the hydrogen peroxide is effectively controlled; and the comprehensive properties of whiteness, wool efficiency, hand feeling and the likeof the bleached fabric are improved.

Description

technical field [0001] The invention belongs to the technical field of textile printing and dyeing auxiliaries, in particular to an oxygen bleaching stabilizer and its preparation method and application. Background technique [0002] Hydrogen peroxide bleaching is widely used because of its environmental protection, good stability and non-corrosion equipment. During the bleaching process, hydrogen peroxide decomposes to release active oxygen, so as to achieve the purpose of bleaching. The role of the oxygen bleaching stabilizer is to reduce the violent decomposition reaction of hydrogen peroxide in the presence of metal ions, effectively control the decomposition rate of hydrogen peroxide, prevent fabric holes and strong drop phenomena during the bleaching process, and at the same time improve the whiteness and handle of bleached fabrics . [0003] At present, the commonly used oxygen bleaching stabilizers can be divided into silicon type and non-silicon type according to w...

Claims

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Application Information

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IPC IPC(8): D06L4/12D06L4/13
CPCD06L4/12D06L4/13
Inventor 傅秀成丁芸芸
Owner 潍坊军涛化工有限公司
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