direct dye

noun

Definition of direct dye

: a water-soluble dye usually of the azo class that is used in alkaline or neutral solution especially for dyeing cellulosic material (such as cotton or paper) directly

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“Direct dye.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/direct%20dye. Accessed 31 Oct. 2020.

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