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Method for preparing composite photocatalysis bleaching system and textile bleaching technology

A technology of composite photocatalysis and system, which is applied in the field of composite photocatalysis system and bleaching process, can solve the problems such as environmental pollution cannot be effectively solved, and achieve the effects of short processing time, small loss of strength and high whiteness

Inactive Publication Date: 2014-08-06
WUHU FUCHUN DYEING & WEAVING
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Over the years, textile dyeing and finishing waste and wastewater have been treated mainly at the end, and have achieved good results; however, a single end treatment has not only become a heavy burden on economic development, but also cannot effectively solve the problem of environmental pollution. Environmental governance strategies need to be reconsidered

Method used

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  • Method for preparing composite photocatalysis bleaching system and textile bleaching technology
  • Method for preparing composite photocatalysis bleaching system and textile bleaching technology
  • Method for preparing composite photocatalysis bleaching system and textile bleaching technology

Examples

Experimental program
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Effect test

Embodiment 1

[0029] A preparation method of a composite photocatalytic bleaching system, comprising the following steps:

[0030] (1), adding 12 g of hydrogen peroxide with a mass concentration of 30% in 1 L of water, adjusting the pH value to 10.5 with sodium bicarbonate, adding 1 g of a stabilizer, to obtain a hydrogen peroxide bleaching system;

[0031] (2) Add 20 g of titanium dioxide, 5 g of sodium dodecylbenzenesulfonate and 1 g of sodium hexametaphosphate into 1 L of water, adjust the pH to 9, and ultrasonically disperse for 30 minutes to prepare a titanium dioxide dispersion system.

[0032] The preparation method of the stabilizer is as follows: adding phytic acid aqueous solution into a high-pressure reaction kettle, filling ammonia water from the bottom of the reaction kettle under stirring conditions, pressurizing to 2MPa, and gradually raising the temperature to 40°C at the same time, stirring for 20min, cooling to room temperature, reducing Press to obtain ammonium phytate. ...

Embodiment 2

[0038] A preparation method of a composite photocatalytic bleaching system, comprising the following steps:

[0039] (1), adding 5 g of hydrogen peroxide with a mass concentration of 30% in 1 L of water, adjusting the pH value to 10.7 with sodium bicarbonate, adding 2 g of a stabilizer, to obtain a hydrogen peroxide bleaching system;

[0040] (2) Add 15 g of titanium dioxide, 3 g of sodium dodecylbenzenesulfonate and 1 g of sodium hexametaphosphate into 1 L of water, adjust the pH to 9, and ultrasonically disperse for 20 minutes to prepare a titanium dioxide dispersion system.

[0041] Add phytic acid aqueous solution into the high-pressure reaction kettle, and fill it with ammonia water from the bottom of the reaction kettle under the stirring condition of rotating speed of 300 rpm, pressurize to 3MPa, and gradually raise the temperature to 50°C at the same time, stirring at a rotating speed of 300 rpm for 30 minutes, Cool to room temperature and reduce pressure to obtain amm...

Embodiment 3

[0047] A preparation method of a composite photocatalytic bleaching system, comprising the following steps:

[0048] (1), adding 5 g of hydrogen peroxide with a mass concentration of 30% in 1 L of water, adjusting the pH value to 10.8 with sodium bicarbonate, adding 3 g of a stabilizer, to obtain a hydrogen peroxide bleaching system;

[0049] (2) Add 25g of titanium dioxide, 3g of sodium dodecylbenzenesulfonate and 1g of sodium hexametaphosphate into 1L of water, adjust the pH to 9, and ultrasonically disperse for 40 minutes to prepare a titanium dioxide dispersion system.

[0050] Add phytic acid aqueous solution into the high-pressure reaction kettle, and fill it with ammonia water from the bottom of the reaction kettle under the stirring condition of rotating speed of 300 rpm, pressurize to 5MPa, and gradually raise the temperature to 50°C at the same time, stirring at a rotating speed of 300 rpm for 30 minutes, Cool to room temperature and reduce pressure to obtain ammoniu...

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Abstract

The invention discloses a method for preparing a composite photocatalysis bleaching system and a textile bleaching technology. The bleaching technology can be finished by the following steps: firstly, a textile is soaked in a hydrogen peroxide blenching system containing inositol hexaphosphate ammonium salt and then soaked in a titanium dioxide dispersing system containing sodium dodecyl benzene sulfonate and sodium hexametaphosphate; then, the textile is put in an ultraviolet circulating irradiation device. Compared with the prior art, the bleaching technology has the advantages that the bleached textile has high whiteness and small strength losses, the treatment time is short, no three wastes are discharged, technical advantages of energy conservation and emission reduction are achieved, and the photocatalysis bleaching performance of yarns can be inherited by down-stream products, such as fabric.

Description

technical field [0001] The invention relates to the technical field of textiles, in particular to a composite photocatalytic system for textiles and a bleaching process. Background technique [0002] At present, domestic and foreign markets have new requirements for textile performance and functions, and printing and dyeing enterprises are facing new challenges. The coordination between the development of the printing and dyeing industry and the environment is even more eye-catching, and clean production has reached the point of no delay. [0003] Over the years, textile dyeing and finishing waste and wastewater have been treated mainly at the end, and have achieved good results; however, a single end treatment has not only become a heavy burden on economic development, but also cannot effectively solve the problem of environmental pollution. Environmental governance strategies need to be reconsidered. Developed countries took the lead in proposing a new clean production me...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D06L3/02D06L3/04D06L4/12D06L4/13D06L4/50
Inventor 何培富孙瑞霞程宏王金成徐志恒杨青
Owner WUHU FUCHUN DYEING & WEAVING
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