Patent ID: 6418852
Filing Date: 2002-07-16
Classification: C09D

Abstract:
A method of reclaiming residual vegetable oil-based printing ink from a printing press during the cleaning of a printing press, comprising:a. applying unpolymerized vegetable oil to a printing press in an amount effective to dissolve residual vegetable oil-based printing ink therefrom thereby producing a contaminated printing ink comprising unpolymerized vegetable oil, residual vegetable oil-based printing ink and particulate matter; b. filtering the contaminated printing ink to remove particulate matter and provide a substantially particulate free residual printing ink; c. admixing an effective amount of colorant with an effective amount of substantially particulate free residual printing ink to provide a residual vegetable oil-based printing ink having a predetermined viscosity and a predetermined weight percent of colorant; and d. disposing of the biodegradable waste cleaning solution in a public sewer system.