| 摘要 |
<p>Paints (7a,8a) of different color brightness not deposited on a workpiece 17 to be coated in a powder coating process, selectivity using paints of high, medium and low brightness, are recovered at 24 as a mixture, and a fresh paint of high or low color brightness is added to the mixture in a control tank 46 to adjust its color brightness and thereby prepare a fresh mixture of medium color brightness which can be used as a paint of medium color brightness. The recovered product is classified in a vibrating tank 26, one fraction being collected at 33 for delivery to tank 46.</p> |
