Carbonless paper copying system

Details Carbonless paper copying system Carbonless paper copying system

B - Operations, Transporting

41

M

42/16

B41M 5/155 (2006.01)

Patent

CA 1219444

ABSTRACT A color developing CF sheet for pressure-sensitive recording systems comprising an admixture of an alkylide- nediphenol and calcium carbonate having a weight ratio of about 4 parts to about 12 parts phenol per 100 parts cal- cium carbonate. The admixture is formulated in high solids content coating colors having excellent rheolog- ical property and stability, which are used to produce CF sheets having a coating weight of about 4 to about 10 g/m2. Preferably, the CF sheet comprises Bisphenol A in an amount of 4 to 10 parts per 100 parts calcium carbo- nate and the calcium carbonate weight % in the CF coating is greater than 50%. Other embodiments comprise an aqueous dispersion of the admixture and a pressure-sensi- tive recording manifold.

481745

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