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Short-process pre-treatment scouring agent for textile and preparation method thereof

A short process and textile technology, applied in the field of whitening agent, can solve the problems of waste of water resources and energy, consumption of large chemicals, incomplete compatibility, etc., and achieve water and energy saving, wide application range, good economy and The effect of social benefits

Inactive Publication Date: 2012-12-26
濮阳圣恺环保新材料科技股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Many of these pharmaceutical additives are reused, but because these pharmaceutical additives are not fully compatible, direct mixing may fail. For example, hydrogen peroxide is acidic and will decompose when mixed with alkali
Therefore, the pretreatment using traditional pretreatment additives consumes a large amount of chemicals, but also causes waste of water resources and energy, and the discharge of waste gas and waste water will also cause heavy pressure on the environment.

Method used

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  • Short-process pre-treatment scouring agent for textile and preparation method thereof
  • Short-process pre-treatment scouring agent for textile and preparation method thereof
  • Short-process pre-treatment scouring agent for textile and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] A preparation method for a short-process pretreatment whitening agent for textiles, comprising the steps of:

[0023] 1) Add 350kg of sodium carbonate solution with a mass concentration of 7% into the reaction kettle, then add 100kg of sodium metasilicate, 50kg of EDTA-2Na and 50kg of surfactant, mix evenly, and then add it at a speed of 500r / min and a temperature of 20 Under the condition of ℃, add 573kg of alkali agent and 650kg of hydrogen peroxide with a mass concentration of 35% to the reaction kettle within 1 hour. After the feeding is completed, precipitate in the sedimentation tank to crystallize the semi-finished whitening agent;

[0024] 2) Transfer the semi-product of whitening agent produced by reaction crystallization into a centrifuge for 30 minutes, and dry it with cold wind. At the same time, spray 100kg of coating agent for coating. The semi-finished product after coating is sent to the fluidized bed for drying The machine is dried at 90°C, and the drie...

Embodiment 2

[0026] A preparation method for a short-process pretreatment whitening agent for textiles, comprising the steps of:

[0027] 1) Add 350kg of sodium carbonate solution with a mass concentration of 7% into the reaction kettle, then add 100kg of sodium metasilicate, 50kg of EDTA-2Na and 50kg of surfactant, mix evenly, and then add it at a speed of 500r / min and a temperature of 20 Under the condition of ℃, add 565kg of alkali agent and 673kg of hydrogen peroxide with a mass concentration of 35% into the reaction kettle within 1 hour. After the feeding is completed, precipitate in the sedimentation tank to crystallize the semi-finished whitening agent;

[0028] 2) Transfer the semi-product of whitening agent produced by reaction crystallization into a centrifuge for 30 minutes, and dry it with cold wind. At the same time, spray 100kg of coating agent for coating. The semi-finished product after coating is sent to the fluidized bed for drying The machine is dried at 85°C, and the dr...

Embodiment 3

[0030] A preparation method for a short-process pretreatment whitening agent for textiles, comprising the steps of:

[0031] 1) Add 350kg of sodium carbonate solution with a mass concentration of 7% into the reaction kettle, then add 100kg of sodium metasilicate, 50kg of EDTA-2Na and 50kg of surfactant, mix evenly, and then mix it at a speed of 500r / min and a temperature of 15 Under the condition of ℃, 556kg of alkali agent and 696kg of hydrogen peroxide with a mass concentration of 35% were fed into the reaction kettle within 1 hour. After the feeding was completed, it was precipitated in the sedimentation tank to crystallize the semi-finished whitening agent;

[0032] 2) Transfer the semi-product of whitening agent produced by reaction crystallization into a centrifuge for 30 minutes, and dry it with cold wind. At the same time, spray 100kg of coating agent for coating. The semi-finished product after coating is sent to the fluidized bed for drying The machine is dried at 95...

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Abstract

The invention relates to a short-process pre-treatment scouring agent for a textile. The short-process pre-treatment scouring agent is mainly prepared by the following components in percentage by weight: 60-80% of sodium percarbonate, 5-15% of alkaline agent, 5-15% of sodium metasilicate, 5-15% of EDTA (ethylene diamine tetraacetic acid)-2Na and 5-15% of surfactant. The scouring agent provided by the invention compounds each kind of drug needed in the pre-treatment process according to a proper ratio; after the scouring agent is used, three traditional processes of pre-treatment desizing, refining and bleaching can be shortened as one process of desizing, refining and bleaching or two processes of desizing firstly and refining and bleaching. The scouring agent has the characteristics of simple use, better energy-saving and consumption-reducing effect, high energy using rate and good economical and social benefits.

Description

technical field [0001] The invention belongs to the technical field of whitening agents, and in particular relates to a short-process pretreatment whitening agent for textiles and a preparation method thereof. Background technique [0002] Pretreatment is an important process of textiles and the basis for subsequent processing of dyeing agents. The traditional pretreatment process is divided into three processes: desizing, refining, and bleaching. Because each process requires adding water, heating, and washing, different types of pharmaceutical auxiliaries need to be added, including liquid hydrogen peroxide, refining agents, and solid ones. Oxygen bleach stabilizer, alkaline agent, etc. Many of these pharmaceutical additives are reused, but because these pharmaceutical additives are not fully compatible, direct mixing may fail. For example, hydrogen peroxide is acidic and will decompose when mixed with alkali. Therefore, the pretreatment using traditional pretreatment ad...

Claims

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Application Information

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IPC IPC(8): D06L3/02D06L4/12D06L4/13
Inventor 赵红阳陈志勇宋建德辛怀乾贾东东马克栋魏丽丽
Owner 濮阳圣恺环保新材料科技股份有限公司
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