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The Color Fastness to Washing and Perspiration in Textile

2016-09-02 08:43 | writer: admin

The testing method comparison of the color fastness to washing and perspiration 
 
The color fastness to washing reflected textile itself staining and color changes status under the action combined with certain moisture/ pressure and temperature. While testing, sample and lining textile soaked sufficiently, under certain pressure and put into oven with certain temperature, take out for drying, calculated it’s staining and color changes degree. Staining and color changes can be divided into 5 degree, the class 5 is the best, and the class 1 is the worst.
 
The color fastness to perspiration is reflected textile itself staining and color changes status under the action combined with certain moisture/ pressure and temperature. It is using grey card to evaluate sample’s color changes and staining, the result divided into 5 degree, the class 5 is the best, and the class 1 is the worst.
 
The method for improving the color fastness to washing and perspiration
 
Improving textile’s color fastness to washing and perspiration, the main method is selected dye stuff reasonably; especially select high rate fixation and stable dye stuff. Formulate and control dyeing craft, enhance fixation condition, forming high stability covalent bond, can let the dye stuff being stable sufficiently. For example, bad reaction dye stuff can use as catalyst, or select suitable dye-fixing agent, or fixing the color under high temperature.
 


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