Method for coating and drying paper
AssigneeConsolidated Papers, Inc.
InventorGary G. Schiller
Life of this patent
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Abstract
A coated paper having high bulk, excellent gloss and low surface mottle is prepared by first coating the paper with an aqueous composition containing pigment and a thermoplastic binder. The paper is then initially dried at a temperature of up to about 20.degree. F. above the minimum film-forming temperature of the binder until the moisture content of the sheet reaches from about 8 to about 18% by weight. The drying temperature is then increased to further dry the paper, and the dry coated paper is then calendered.
Claims7
A method for coating and drying a web of paper comprising the steps of applying a coating to said web, said coating comprising a coating pigment and a thermoplastic polymer having a minimum filmforming temperature (MFFT) of from about 85.degree. to about 135.degree. F., initially drying the web at a web temperature above the MFFT and below 20.degree. F. in excess of the MFFT until the moisture content of the web is from about 8 to about 18 percent by weight, then continuing to dry the web at a temperature higher than the initial web temperature until the final desired degree of dryness is attained, and then calendering the dried coated web.
Dependencies are inferred from the claim text.