A thin printing paper and a process for manufacturing said...

Details A thin printing paper and a process for manufacturing said... A thin printing paper and a process for manufacturing said...

D - Textiles, Paper

21

H

D21H 19/84 (2006.01) D21H 11/14 (2006.01) D21H 19/50 (2006.01) D21H 19/52 (2006.01) D21H 19/54 (2006.01)

Patent

CA 2157790

A wood-containing bible paper weighing less than 49 g/m2 is provided with a surface pigmentation that contains as pigment a mixture of a swellable stratified silicate (Na-bentonite) and other usual coating pigments, and as binder only a natural organic binder, essentially starch. Even with little glazing, this paper is equally suitable for printing by heliorotogravure and by a rotary offset press. In addition, this bible paper preferably contains a certain proportion of treated used paper fibres.

Un papier bible avec bois d'un grammage inférieur à 49 g/m?2¿ est pourvu d'une pigmentation de surface qui comprend comme pigment un mélange d'un silicate stratifié gonflable (Na-bentonite) et d'autres pigments usuels de couchage. Comme liant, la pigmentation de surface contient uniquement un liant organique naturel, essentiellement de l'amidon. Même avec un lissage réduit, ce papier se prête aussi bien à l'impression dans une rotative hélio que dans une rotative offset. De préférence, le papier contient en outre une certaine proportion de fibres traitées de vieux papiers.

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