| 摘要 |
<p>O.Z. 0050/034411 A process for the preparation of a textile finish, the finish thus obtained and its use for the easy -care finishing of textiles containing, or consisting of cellulose. The finish comprises an aqueous solution, of from 30 to 70 per cent strength by weight, of a mixture of the conventionally methylolated (= hydroxymethylated) carbamates I and II I II where R is hydrogen or alkyl of 1 to 4 carbon atoms, in the weight ratio I : II of from 1 : 1 to 1 : 20. The finish is prepared by reacting a glycol or an alkylgylcol of the formula III R-(OCH2-CH2)9-100-OH III where R has the above meanings, and isobutanol with urea at above 100.degree.C, so as to eliminate ammonia and produce carbamates, and methylolation with formaldehyde. In a first stage, the glycol or alkylglycol of the formula III is reacted to the extent of at least 50% with urea, in the absence of a catalyst; at from 130 to 160.degree.C, to give the carbamate I, and in a second stage, carried out either in the presence of an ion exchanger containing nickel ion at from 130 to 165.degree.C, or in the absence of a catalyst at from 150 to 200.degree.C the carbamate mixture in the weight ratio I : II of from 1 : 1 to 1 : 20 is prepared by addition of isobutanol and further urea.</p> |
