Recording material

Details Recording material Recording material

B - Operations, Transporting

41

M

42/14

B41M 5/136 (2006.01) B41M 5/155 (2006.01)

Patent

CA 2004666

Recording material Abstract Pressure-sensitive reactive recording material containing a) as the colour-forming agent, a tetraindolyl- heptamethine ether or alcohol of the formulae I/1, I/2, I/3 or I/4 Image I/1 Image I/2 Image I/3 Image I/4 Le A 26 425 - Foreign countries b) and, as the colour developer, the salt of a poly- valent metal and an aromatic carboxylic acid having at least 10 carbon atoms, of the formula (II) Image (II) wherein A, B, D and E denote Image and the other radicals have the meanings given in the description, produces light-stable copies which can also be read by machines (OCR). Le A 26 425

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