Method of inhibiting wet strength resin deposition in papermaking felts
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United States of America Patent
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May 28, 1996
Issued Date -
N/A
app pub date -
Feb 22, 1995
filing date -
Oct 7, 1993
priority date (Note) -
Expired
status (Latency Note)
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Abstract
This invention relates to an improved press felt conditioning treatment which controls the deposition of poly(aminoamide)--epichlorohydrin type resins in a press felt. The treatment comprises applying to the felt an effective inhibiting amount of a conditioner comprising: 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.
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