Abstract: A method of cleaning waste water and removing contaminants therefrom with respect to compositions exhibiting water solubility behavior which is pH dependent. The method includes the preliminary step of applying the composition at a pH at which the composition is water insoluble, then removing excess composition from application equipment with a wash solution having a pH at which the composition is water soluble or washable, changing the pH of the wash solution to a pH at which the composition is water insoluble to thereby precipitate the composition and removing the composition by filtration or other separation techniques. The invention also relates to a shop towel clean up method.

Abstract: An ink composition, varnish and method in which the composition and varnish includes reduced levels of petroleum solvents, while retaining beneficial ink properties. The invention also relates to a method of making an ink composition and varnish including a cook cycle which minimizes or eliminates esterification and other reactions involving functional components of the composition and varnish.

Abstract: A method and composition for clean up of an oil based composition using an aqueous solution. The clean up composition includes 5-60% by weight of a solubility controlling component exhibiting pH dependent water solubility behavior and 30-95% by weight of a diluent. The method includes applying the clean up composition to the oil based composition and cleaning the same with an aqueous solution having a wash pH falling within the pH levels at which the solubility controlling component is water washable.

Abstract: An ink composition incorporating a water reducible resin which is water insoluble under certain conditions and selectively water washable under certain other conditions. The method aspect of the present invention relates to a method of making, using and recovering the ink composition.

Abstract: An amine functional water reducible resin and an ink composition incorporating an amine functional water reducible resin which is water insoluble under certain pH conditions and selectively water washable under certain other pH conditions. The method aspect of the present invention relates to a method of making, using and recovering the ink composition and a method of making the water reducible resin.

Abstract: A vehicle for a radiation curable ink composition and methods of making and using such vehicle and ink composition. The vehicle and ink composition are substantially water insoluble and include a water reducible resin which is present in the vehicle and ink composition is its water insoluble form and which is present in an amount sufficient to render the vehicle and ink composition water washable using an alkaline wash.

Abstract: An ink composition incorporating a water reducible resin which is water insoluble under certain conditions and selectively water washable under certain other conditions. The method aspect of the present invention relates to a method of making, using and recovering the ink composition.

Abstract: An ink composition comprising a water reducible resin and a compatible surfactant wherein the ink composition is water insoluble under certain pH conditions and selectively water washable under certain other alkaline pH conditions. The method aspect of the present invention relates to a method of making and using the ink composition.