Method for recycling aqueous paint

Details Method for recycling aqueous paint Method for recycling aqueous paint

2005-04-19

2005-04-19

Jolley, Kirsten (Department: 1762)

Coating processes

Measuring, testing, or indicating

C427S345000, C427S421100, C118S602000, C118S603000, C118S326000, C118S501000, C210S650000, C210S195100, C210S252000, C210S259000, C210S295000

Reexamination Certificate

active

06881436

ABSTRACT:
Material balance is maintained in a recycling system for aqueous paint by controlling a liquid amount within the recycling system while spray-coating an article. A recycling method includes: coating an article with aqueous paint in a water-curtain-type coating booth; collecting an over-spray paint, that does not adhere to the article, by virtue of a water curtain; sending a collected solution of paint and water to a condensation bath through a booth circulation water bath; separating this solution by an ultra-filtration apparatus into condensed paint and filtrate, with the condensed paint being transferred to a paint tank; and removing condensed paint from the paint tank, if necessary for adjustment of aqueous paint, followed by coating this aqueous paint onto an article, wherein a total amount of liquid present within the recycling system is controlled to be constant during spray-coating of an article.

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