Pressure sensitive copying paper

Details Pressure sensitive copying paper Pressure sensitive copying paper

B - Operations, Transporting

41

M

B41M 5/165 (2006.01) B41M 5/124 (2006.01) B41M 5/132 (2006.01)

Patent

CA 2057589

19 ABSTRACT Pressure-Sensitive Copying Paper An extracted and isolated soy protein polymer is used for prevention of premature colouration in CFB pressure- sensitive copying paper which is neutral- or alkaline- sized with an alkyl ketene dimer and which utilizes an acid clay colour developer composition. The soy protein polymer may be carried by the base paper, e.g. as a result of size press or size bath application, or may be present in the microcapsule coating.

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