Phospholipid lubricant for coating moving webs
AssigneeBercen Incorporated
InventorsKoyu Nikoloff, Raymond J. Peltier
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Abstract
Phospholipids such as lecithins provide improved rheological properties for coating a rapidly moving web, such as a paper web. The phospholipids are preferably applied to the paper web as part of a coating mixture, and they can be included in the coating mixture by first including the phospholipid in a lubricant additive mixture that includes an emulsifier, a fatty acid vehicle, and plasticizer. The lubricant is well-suited for short-dwell coating methods.
Claims13
A lubricant additive mixture adapted for combination with an aqueous-based paper or paper board coating mixture, said additive mixture comprising a fatty acid, a surfactant, and a phospholipid selected from the group consisting of phosphatidylcholine, phosphatidylethanolamine, phosphatidylinositol, phosphatidic acid and mixtures thereof.
An aqueous-based paper or paper board coating mixture comprising clay and a phospholipid lubricant selected from the group consisting of phosphatidylcholine, phosphatidylethanolamine, phosphatidylinositol, phosphatidic acid and mixtures thereof.
Dependencies are inferred from the claim text.