Carbonless transfer sheets for multi-part forms packs

B - Operations – Transporting – 41 – M

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42/10

B41M 5/124 (2006.01) B41M 5/155 (2006.01) B41M 5/165 (2006.01)

Patent

CA 1296897

PMW-019 -23- Abstract Pressure sensitive carbonless transfer sheets are made capable of producing clear images by light impact marking means in multi-part carbonless forms packs containing at least six of the sheets, such as 8-12 sheets, by coating a chromogenic material onto a paper sheet characterized by a basis weight of 9-12 lbs, a thickness of 40-50 microns, a Gurley porosity of 400-4000 seconds, and a Bendtsen smooth- ness of 90-260 ml/min on the wire side and 60-280 ml/min on the felt side. Bar codes are also trans- ferrable with good scannability through forms packs containing three or more of the sheets.

570934

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