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US 5,944,954 AGranted
Process for creping tissue paper
AssigneeThe Procter & Gamble Company
InventorsKenneth Douglas Vinson, Howard Thomas Deason, Bart Steven Hersko
Life of this patent
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Abstract
An adhesive for applying to a creping surface in the process for dry creping tissue paper is disclosed. The adhesive comprises cationic starch and optionally a polyvinyl alcohol and a water-soluble, thermosetting, cationic polyamide-epihalohydrin resin. The adhesive provides high adhesion and doctorability for dry creping.
Claims9
A process for creping tissue paper comprising:
- a) applying to a rotating creping cylinder an aqueous dispersion comprising from about 90% to about 99.9% water and from about 10% to about 0.1% solids, wherein from about 50% to about 90% of said solids is a cationic starch having between about 0.001 and about 0.2 cationic substituents per anhydroglucose unit of starch, and from about 10% to about 50% of said solids is a water soluble, thermosetting, cationic polyamide-epihalohydrin resin;
- b) pressing a tissue paper web against the creping cylinder to effect adhesion of the web to the surface of the cylinder;
- and
- c) dislodging the web from the creping cylinder by contact with a doctor blade.
1 more element
A process for creping tissue paper comprising:
- a) applying to a rotating creping cylinder an aqueous dispersion comprising from about 90% to about 99.9% water and from about 10% to about 0.1% solids, wherein from about 10% to about 70% of said solids is a cationic starch having between about 0.001 and about 0.2 cationic substituents per anhydroglucose unit of starch, from about 5% to about 40% of said solids is a water soluble, thermosetting, cationic polyamide-epihalohydrin resin, and from about 20% to about 85% of said solids is a polyvinyl alcohol.
- b) pressing a tissue paper web against the creping cylinder to effect adhesion of the web to the surface of the cylinder;
- and
- c) dislodging the web from the creping cylinder by contact with a doctor blade.
1 more element
Dependencies are inferred from the claim text.