Method of dyeing cellulose fiber-containing structures

Details Method of dyeing cellulose fiber-containing structures Method of dyeing cellulose fiber-containing structures

D - Textiles, Paper

06

P

8/10, 8/30

D06P 5/00 (2006.01) D06M 13/256 (2006.01) D06P 1/651 (2006.01) D06P 3/60 (2006.01) D06P 3/64 (2006.01) D06P 3/82 (2006.01) D06P 5/22 (2006.01) D06P 5/28 (2006.01)

Patent

CA 1139503

Abstract of the Disclosure This invention provides a method of dyeing a fibrous structure containing cellulose fibers. The method includes the steps of impregnating the fibrous structure with an alkaline compound in an amount of from 1 to 20% by weight based on the weight of the fibrous structure and with a modifying agent, the molar ratio of the alkaline compound to the modifying agent being 0.1 to 2.0, and the modifying agent being a compound of the formula Image where X is -H, -NO2, -CH3, or -SO2C?; effecting chemical modification of the impregnated fibrous structure by heat-treating it under steaming or dry heating conditions; and then dyeing the modified fibrous structure with a dye such as a disperse dye.

338899

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