Reactive dyes of the Procion and Remazol types react with glucose or celobiose in alkaline solution to give predominantly dye glucosides . Therefore the previous publications, claiming a direct chemical proof for a covalent bond between the alcoholic cellulose hydroxyl groups and the reactive dye by means of identifying a degradation product with a synthetic one from dye and free sugar are not reliable.
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O. Stamm (1963) studied this question.