Process of after-treating dyed cellulose fabrics with a glyoxalated acrylamide polymer
AssigneeCallaway Corporation
InventorsAnthony Cooper, Richard T. Underwood, Geoffrey Monteith, Michael Wright
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Abstract
An improved method for fixing color of a dyed textile fabric by coating a dyed textile with an acrylamide polymer which has been reacted with glyoxal at a mole ratio of glyoxal to polymer of at least 0.8:1. Preferably the dyed textile fabric has been pre-coated with an anionic polymer.
Claims28
A process of preparing a dyed textile fabric having improved wet croaking which comprises performing the sequential steps of (a) coating a dyed anionic textile fabric with a glyoxalated acrylamide polymer which is prepared by reacting about 0.9 to 4 moles of glyoxal per mole of acrylamide in the acrylamide polymer and (b) drying the resulting fabric, wherein the anionic textile fabric is prepared from 100% cellulosic materials or blends of cellulosic material with other fibers.
In a process for after treating a dyed cellulose-containing textile fabric which fabric did not have a coating of material with a cationic charge on it prior to dyeing, the improvement comprising after-treating the dyed cellulose-containing textile fabric by applying a final finish in an amount sufficient to improve wet crockfastness, the final finish comprising a glyoxalated acrylamide polymer which is prepared by reacting about 0.9 to 4 moles of glyoxal per 1.0 mole of acrylamide contained in the acrylamide polymer, and drying the glyoxalated polymer in the final finish in situ on the textile fabric.
Dependencies are inferred from the claim text.