Inhibition of wet strength resin deposition in papermaking felts

摘要

This invention relates to an improved press felt conditioning treatment which controls the deposition of poly(amino-amide) - epichlorohydrin type resins in a press felt. The treatment comprises applying to the felt an effective inhibiting amount of a conditioner consisting of: an ethoxylated nonylphenol having greater than about 30 moles of ethoxylation; sodium n-hexadecyl diphenyloxide disulfonate; a fatty acid imidazoline or an alkylamidopropyldimethylamine which include an alkyl hydrophobe substituent having a carbon chain length of about 18.