Method to reduce back trap offset print mottle

Details Method to reduce back trap offset print mottle Method to reduce back trap offset print mottle

D - Textiles, Paper

21

H

D21H 19/82 (2006.01)

Patent

CA 2581113

A paper and paperboard material comprising a paper or paperboard substrate, a basecoat layer on at least one surface of substrate and topcoat on a surface of the basecoat, said topcoat comprising one or more pigments dispersed in one or more binders and said basecoat comprising low density thermoplastic particles dispersed in one or more binders. The basecoat is compressible which reduces back trap print mottle in offset printed images.

L'invention concerne un support papier ou carton comprenant un substrat de papier ou de carton, une couche de fond appliquée sur au moins une surface du substrat, et une couche de finition appliquée sur une surface de la couche de fond, ladite couche de finition comprenant un ou plusieurs pigments dispersés dans un ou plusieurs liants, et ladite couche de fond comprenant des particules thermoplastiques de faible densité dispersées dans un ou plusieurs liants. La couche de fond est compressible ce qui réduit le risque de madrures dues au glaçage lors de l'impression d'images au moyen d'un procédé offset.

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