A new finish for cotton fabric which imparts high oil repellency with low water repellency is described. The finish is based on the reaction of tetrakis(hydroxymethyl)-phosphonium chloride and 1,1-dihydroperfluorooctylamine and is applied from aqueous emulsions with a gaseous ammonia cure. The emulsion is suitable for simultaneous application with a typical permanent-press agent to obtain wrinkle-recovery properties. In soiling tests, certain of the soiling properties of the finish showed an improvement over commercially used fluorocarbon treatments in the range of add-ons studied.
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Ellzey et al. (1969) studied this question.
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