Pressure sensitive recording materials

Details Pressure sensitive recording materials Pressure sensitive recording materials

B - Operations, Transporting

41

L

42/16

B41L 1/36 (2006.01) B41M 5/155 (2006.01)

Patent

CA 1158437

ABSTRACT The present invention relates to a pressure-sensitive recording material having improved storability, lightfastness and heat resistance, which comprises a unit containing a dye precursor or its solution and a unit containing a dye acceptor material which is capable of color formation by reaction with the dye precursor. The pressure-sensitive recording material according to the invention is characterized in that the dye acceptor material is an intimate mixture comprising a) a 2-hydroxy-benzophenone of the general formula I Image or 3,5,7,3',4' -pentahydroxy-flavone of the formula II Image - 1 - b) a substituted benzotriazole of the general formula III Image and, optionally, an inert waxy binder. The invention further relates to further embodiments of this recording material with improved properties as well as process for producing the pressure-sensitive recording materials according to the invention. - 2 -

372708

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