Process for preserving planographic printing forms

Details Process for preserving planographic printing forms Process for preserving planographic printing forms

B - Operations, Transporting

41

N

117/160

B41N 3/00 (2006.01) B41N 3/08 (2006.01)

Patent

CA 1161702

Abstract of the Disclosure. This invention relates to an improved process for preserv- ing a planographlc printing form which is ready for printing. In the process, the planographic printing form is treated with an aqueous solution of a water-soluble, film-forming high-molecular weight organic compound and a hydrophilizlng acid and is then dried. The hydrophlizing acid used is an organic phosphonic acid, in particular polyvinyl phosphonic acid, preferably in a concentration from 0.05 to 10 percent by weight. As the water-soluble, high-molecular weight organic compound gum arabic, dextrin or polyvinyl alcohol is approprlately used.

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