JOURNAL OF TEXTILE RESEARCH ›› 2013, Vol. 34 ›› Issue (2): 111-114.
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Abstract: Based on dye-free coloration of tryptophan, different colors were discussed by altering the concentration of 3,4 - two hydroxyl benzaldehyde , concentration of nitric acid and reaction temperature . And the chromaticity value can be discussed, which can be used to analyze the influence of different technique process. Then the strength and color fastness of colored fabric were tested. The results showed that, by altering the process,it can get different shades of color, the color fastness is good as well as the fabric strength.
Key words: wool, dye-free color development, color, 3, 4 - two hydroxyl benzaldehyde
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