| 摘要 |
The invention concerns a process for providing fibres that contain exclusively or predominantly polyolefins or polyesters or nonwovens that predominantly contain such fibres with a hydrophilic coating, the fibres or nonwovens being treated with a preparation which contains between 50 and 95 wt. %, relative to the total weight of the preparation, of at least one quaternary ester amine salt of formula (I), in which R<1> designates an aliphatic alkyl group with between 12 and 22 carbon atoms, R<2> designates either a group (CH2)n-O-COR<1> or an alkyl group with between 12 and 22 carbon atoms, and R<3> and R<4>, independently of one another, designate a group (CH2)n-R<5>, R<5> being equal to H or OH and n being a number between 1 and 3 and X being either a halide, methosulphate, methophosphate or phosphate ion, between 5 and 50 wt. % of at least one alkylglycoside having the general formula RO(G)x in which R is a primary straight-chain or methyl-branched aliphatic group with between 8 and 22 carbon atoms, and G stands for a glycoside unit with 5 or 6 carbon atoms, and x is a number between 1 and 10, and between 0 and 30 wt. % glycerol. Treated nonwovens of this type, even when stressed repeatedly, display "liquid strike through" times of less than 10 seconds, measured according to EDANA test method 150.0-8. |
