Novel creping adhesives and methods to monitor and control their application
AssigneeNalco Company
InventorsGary S Furman, Mingli Wei, Winston Su, Christopher D. Kaley, David J. Castro, Vladimir Grigoriev
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Abstract
This invention is method of creping a paper web comprising a) applying to a rotating creping cylinder an adhesive composition having a pH of about 6.5 to about 8 and comprising one or more vinylamine/N-vinyl formamide polymers composed of about 10 to about 99 mole percent vinylamine monomer and about 90 to about 1 mole percent N-vinylformamide monomer; b) pressing the paper web against the creping cylinder to effect adhesion of the paper web to the creping cylinder; and c) dislodging the paper web from the creping cylinder with a doctor blade.
Claims16
A method of creping a paper web comprising:
- preparing an adhesive composition having a pH of between 6.5 and 8 and comprising one or more vinylamine/N-vinyl formamide polymers comprising about 10 to about 99 mole percent vinylamine monomer and about 90 to about 1 mole percent N-vinyl formamide monomer, then reacting the polymers with a halogenated organic acid such that the carboxyl carbon of the organic acid becomes covalently bonded to an amino nitrogen of the polymer,
- applying the adhesive composition to a to a creping cylinder,
- pressing the paper web against the creping cylinder to effect adhesion of the paper web to the creping cylinder;
- and
- dislodging the paper web from the creping cylinder with a doctor blade.
Dependencies are inferred from the claim text.