Improving the quality of coated paper

摘要

There is disclosed a method for improving the ease of application of a final inorganic pigment-containing coating to a cellulosic sheet material which has been coated with at least one preliminary inorganic pigment-containing coating. The method comprises incorporating into the preliminary coating or into at least one of the preliminary coatings, up to 2% by weight, based upon the weight of the inorganic pigment, of a sizing reagent, such as an alkyl ketene dimer. A composition for use in the method is also disclosed.