OLEOPHOBIC POLYOLEFIN FIBER MATERIALS

摘要

A fabric composed of polyolefin fiber is obtained by: i) treating textile fabric having containing polyolefin fiber to an extent of 90-100 (preferably 100) wt.%, in plasma to have fabric surface tension of 35-60 mN/m; ii) treating obtained fabric with polyorganosiloxane containing trialkyl siloxy units as end groups, and within the polyorganosiloxane chain units; and iii) treating the fabric with polyacrylic and/or polyurethane polymer having perfluoroalkyl groups. The step (iii) is carried out concurrently with step (ii) or later than step (ii). A fabric composed of polyolefin fiber is obtained by: i) treating a textile fabric containing polyolefin fiber to an extent of 90-100 (preferably 100) wt.%, in a plasma under such conditions that, after step (i) has been carried out, the fabric has a surface tension of 35-60 mN/m; ii) treating the fabric obtained after step (i) with a polyorganosiloxane containing trialkyl siloxy units of formula R 3Si-O- as end groups, and within the polyorganosiloxane chain units of formulae -Si(R) 2-O- (I) and -Si(R)(X)-O- (II); and iii) treating the fabric with polyacrylic and/or polyurethane polymer having perfluoroalkyl groups. The step (iii) is carried out concurrently with step (ii) or later than step (ii). R : CH 3, CH 2-CH 3or phenyl; X : radical of the formula -(CH 2) t-(O-CHR 1-CHR 2) z-OR 3(III); t : 1-4; z : 5-60; R 1and R 2H or CH 3; R 3H or R. Provided that one of R 1and R 2is H and the other is H or CH 3.