Patent ID: 6015585
Filing Date: 2000-01-18
Classification: B05B,B05D,Y02P

Abstract:
A powder coating process using at least two kinds of powder paints having different levels of color brightness selectively for coating different pieces of work, said process comprising the steps of:spraying a first powder paint of said at least two kinds of powder paints against at least a first of said different pieces of work;after spraying said first powder paint, spraying a second powder paint of said at least two kinds of powder paints against at least a second of said different pieces of work;recovering a mixture of said first and second powder paints which have failed to be deposited on any of said different pieces of work;determining the color brightness of said mixture;adding a fresh supply of said first or second powder paint to said mixture to prepare a fresh mixture having a desired level of color brightness which is intermediate between said different levels of color brightness of said first and second powder paints; andusing said fresh mixture as a powder paint of immediate color brightness level.