Method for removing and reclaiming excess paint from a paint spray booth

A method for removing and reclaiming excess paint from a paint spray booth comprising the steps of:

• i). entraining over-sprayed paint particles in a stream of air passing through the paint spray booth;
• ii). causing the entrained over-sprayed paint particles to come into contact with a flowing aqueous flood sheet within the paint spray booth such that a substantial portion of said paint particles are solubilized within said flowing aqueous flood sheet and thereby removed from said stream of air, and wherein said flowing aqueous flood sheet consists essentially of an aqueous paint career which includes;
• A. between about 16 to about 45 percent by weight of at least one C.sub.4 -C.sub.6 lactone selected from the group consisting of o-butyrolactone and valerlactone;
• B. between about 14 to 52 percent by weight of at least one organic solvent;
• and
• C. the balance being water;
• iii). separating and collecting said solubilized paint particles from said aqueous flood sheet, whereby said paint particles are reclaimed;
• and
• iv). recycling said aqueous flood sheet after separation of said paint particles therefrom according to step iii), to the paint spray booth.

A method for removing and reclaiming excess paint from a paint spray booth comprising the steps of:

• i). entraining over-sprayed paint particles in a stream of air passing through the paint spray booth;
• ii). causing the entrained over-sprayed paint particles to come into contact with a flowing aqueous flood sheet within the paint spray booth such that a substantial portion of said paint particles are solubilized within said flowing aqueous flood sheet and thereby removed from said stream of air, and wherein said flowing aqueous flood sheet consists essentially of an aqueous paint career which includes;
• A between about 16 to about 45 percent by weight of a cyclic carbonate;
• B. between about 14 to 52 percent by weight of at least one organic solvent;
• and
• C. the balance being water;
• iii). separating and collecting said solubilized paint particles from said aqueous flood sheet, whereby said paint particles are reclaimed;
• and
• iv). recycling said aqueous flood sheet after separation of said paint particles therefrom according to step iii), to the paint spray booth.