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Reactive light and perspiration composite fastness enhancer and preparation method thereof

A composite fastness and reactivity technology, used in lightfast fibers, dyeing methods, organic chemistry, etc.

Active Publication Date: 2022-05-13
浙江理工大学上虞工业技术研究院有限公司 +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

So far, there are few reports on effective solutions for light and perspiration fastness of cotton fabrics dyed with reactive dyes

Method used

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  • Reactive light and perspiration composite fastness enhancer and preparation method thereof
  • Reactive light and perspiration composite fastness enhancer and preparation method thereof
  • Reactive light and perspiration composite fastness enhancer and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] Embodiment 1, a kind of preparation method of reactive light and perspiration composite fastness enhancer, carries out following steps successively:

[0020] Add 50g of crushed ice, 92g of cyanuric chloride and 200mL of water into a three-necked flask, and place it in an ice bath and stir for 30min. Dissolve 147g of sodium 2-amino-5-nitrobenzenesulfonate in 1L of water, and slowly add it dropwise into a three-necked flask. During the dropping process, the temperature is controlled at 0-5°C, and the dropping time is about 10 minutes. Both the dropping process and the reaction process were carried out under stirring and ice bath conditions, and during the reaction process, sodium hydroxide was used to adjust the pH to 5-6, and the reaction was completed after about 6 hours, and acid precipitation (the concentration of hydrochloric acid was 36-38%, and the dosage was 500ml), filtered, and the resulting filter cake was vacuum-dried (dried at 30° C.) to constant weight to ob...

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Abstract

The invention discloses a reactive compound fastness enhancer for light and perspiration. The reaction is prepared. The reactive light-perspiration composite fastness enhancer of the invention can inhibit the photoreduction reaction of dyes under light-perspiration conditions, thereby improving the light-perspiration composite fastness of cotton fabrics dyed with reactive dyes.

Description

technical field [0001] The invention relates to a reactive light and perspiration composite fastness enhancer and a preparation method thereof. Background technique [0002] Light and perspiration composite fastness refers to the ability of dyed fabrics to maintain the original color under the combined action of sunlight and sweat, and is one of the important indicators for textile quality testing. In the current textile ecology, the compound fastness to light and perspiration is a world-class problem. For cotton fabrics dyed with reactive dyes, after being worn outdoors for a period of time, the back, collar and other parts of the clothing that are in contact with a large amount of sweat from the human body are prone to fading or discoloration after being exposed to sunlight. As a result, it not only affects the appearance of clothing, but also the photodegradation products of dyes are a certain threat to human health. More and more garment manufacturers and printing and ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C07D251/44D06P1/38D06P1/62D06M13/358
CPCC07D251/44D06P1/38D06P1/628D06M13/358D06M2200/25
Inventor 崔志华张海燕高美萍王刚强王星
Owner 浙江理工大学上虞工业技术研究院有限公司
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