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US 8,101,045 B2Granted
Modifying agent for yankee coatings
AssigneeNalco Company
InventorsGary S. Furman, Xiaojin Harry Li, Winston Su, Vladimir A. Grigoriev
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Abstract
The invention provides a composition of matter useful for producing very soft high grades of tissue paper. The composition of matter comprises an adhesive composition that includes a glycerol-based polyol. The glycerol-based polyol prevents the composition from becoming brittle and is non-volatile. This allows the composition to become rewetted after creping and allows for strong levels of adhesion even at high temperatures.
Claims14
A method of creping a paper web comprising the steps of:
- a) applying to a rotating creping cylinder a coating composition, the coating composition comprising at least one adhesive agent, at least one release agent, and at least one polyglycerol;
- 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
- wherein the coating composition has superior dry tack adhesion properties and lower volatility than a similarly constituted coating composition which contains glycerol instead of polyglycerol would.
2 more elements
Dependencies are inferred from the claim text.