Polymer grafted cotton
AssigneeHealthtex Apparel Corp.
InventorsMohan L. Sanduja, Carl Horowitz, Izabella Zilbert, Paul Thottathil, Gerald L. Williamson
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Abstract
A solution for forming a graft substrate containing a graft initiator, a catalyst for activating the graft initiator, a polymerizable silicon softener, and at least one additional prepolymer, each of the softener and the prepolymer which includes a functional group for reaction with an activated site on the substrate for grafting thereto and water. The treated fiber exhibits excellent crockfastness, color fastness, and abrasion resistance, and has a soft hand.
Claims55
A method for making a fiber with a soft hand and good crock-fastness, color-fastness, abrasion resistance, and stain resistance, which comprises:
- contacting a cellulosic fiber with a graft initiator;
- contacting the cellulosic fiber with a composition comprising:
- an organopolysiloxane, a polymerizable silicon oil, or a mixture thereof;
- a first polymerizable prepolymer;
- and
- a second polymerizable prepolymer, wherein the composition is stable with less than 5% of the polymerizable material self-polymerizing at a temperature of between about 60° F. and 90° F. during storage over a period of at least 2 months;
- and
- forming a grafted copolymer onto the cellulosic fiber substrate, said grafted copolymer comprising at least about 10% by weight of the organopolysiloxane or the polymerized silicon oil.
Dependencies are inferred from the claim text.