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How crucial is the gradual increase of temperature in case of acid dyeing?

April 26, 2017acid Case crucial dyeing gradual increase temperature

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How crucial is the gradual increase of temperature in case of acid dyeing?

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Since some colours like acid yellow and black react with silk at lower temperature, it is advised to enter/dip the material at around 40C. However, as the dye fixation takes place at higher temperature, it is advised to increase temperature gradually to higher level.