Patent ID: 7097346

Claim:
A method in control of composition of a coating color mix comprising the steps of: recovering a coating color concentrate from washing water containing coating color mix or recovering coating color residuals from a coating machine or from mix kitchens; combining in a mixer a plurality of coating components including at least a thickener and a binder, and the coating color concentrate from the washing water mix, or the coating color residuals, to thus form a finished coating color mix; measuring the finished coating color mix to determine at least one property selected from the group consisting of: amount of thickener in the coating color mix, a ratio of the thickener to another component of the coating color mix, amount of binder in the coating color mix, and a ratio of the binder to another component; and on the basis of the at least one selected property measured in the finished coating color mix controlling the amount of at least one component added to the mixer in the combining step to form the finished coating color mix.