D - Textiles – Paper – 06 – M
Patent
D - Textiles, Paper
06
M
117/46.3
D06M 13/00 (2006.01)
Patent
CA 1249952
PROCESS FOR IMPROVING POLYMER FIBER PROPERTIES AND FIBERS PRODUCED THEREBY Abstract of the Disclosure A method is provided for treating polymer fibers or fibrous structures made thereof containing active hydrogen atoms to permanently improve the antistatic, hygroscopic, dye receptive and soil release properties of the fibers and structures. The method involves heating a fiber to a solution containing acid and an unsaturated monomer. The pH of the solution is allowed to stabilize and the monomer concentration is allowed to reach uniform dispersal and penetration in the filament bundle. The solution is then maintained at a certain treatment temper- ature. The treatment temperature utilized depends on the type of fiber treated. A fiber containing amine groups is treated at a temperature of between about 75°C and about 100°C; a fiber containing hydroxy groups is treated at a temperature between about 85°C and about 100°C. Initiator is then added thus allowing graft polymerization to occur. The fibers are then allowed to remain in solu- tion to allow substantial polymerization to occur.
462151
Gowling Lafleur Henderson Llp
Intera Company Ltd.
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