Printing paper coating with low-molecular anionic acrylamide...

Details Printing paper coating with low-molecular anionic acrylamide... Printing paper coating with low-molecular anionic acrylamide...

D - Textiles, Paper

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D21H 19/20 (2006.01) D21H 19/12 (2006.01) D21H 21/16 (2006.01) D21H 21/18 (2006.01) D21H 23/56 (2006.01) B41M 5/00 (2006.01) D21H 27/00 (2006.01)

Patent

CA 2194263

A printing paper, especially a newsprint base paper, comprising a base paper, suitably lightweight acid base paper, and a coating layer for improving surface strength of the coated paper and releasing-property when two sheets of the coated paper are stacked, which coating layer is formed on the base paper by using a coating- transcription system such as a gate-roll coating system, which coating layer comprises low-molecular anionic polyacrylamide in a coating weight of from 0.01 g/m2 to 0.2 g/m2, wherein the anionic polyacrylamide have a weight average molecular weight ranging from 10,000 to 150,000, thereby improving not only surface strength but also releasing-property in a printing paper, especially in a newsprint paper having a basis weight less than 46 g/m2.

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