Method of cleaning and reclaiming printing screens

Details Method of cleaning and reclaiming printing screens Method of cleaning and reclaiming printing screens

B - Operations, Transporting

41

N

134/3.4

B41N 3/06 (2006.01) B41F 35/00 (2006.01) B41M 3/00 (2006.01) C09D 9/00 (2006.01) C11D 3/20 (2006.01) C11D 3/28 (2006.01)

Patent

CA 1198958

METHOD OF CLEANING AND RECLAIMING PRINTING SCREENS Abstract of the Disclosure Methods of cleaning and reclaiming printing screens which provide synergistic activities are disclosed. Ink cleaning compositions are also disclosed which degrade or solubilize broad classes of printing ink residues on printing screens for quick removal by a pressurized water stream. The compositions are essentially non-aqueous and contain N-methyl- 2-pyrrolidone, an oxygenated solvent, such as butyl cellosolve and cyclohexanone, and a surfactant. The compositions meet health and safety standards due to their biodegradability, lack of flammability and high threshold limit values.

414440

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