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FLEXO Magazine : December 2012
Chemical Feed and Bleed Set-up By Randy Reynolds Proper set-up of the feed and bleed on small (3048) and large (5280) washout systems will ensure high quality plate washouts without changing the bath every 15 plates. Bath life is not forever, so the washout unit should be cleaned, recharged, and checked every two weeks to ensure the system is operating correctly. The feed and bleed requires four or five additions to the bath on each wash cycle. There is water, detergent, defoamer, and developer. If AVenhance is being used, it is pumped in along with the other chemicals. Feed and Bleed: Washout Bath Size System Plate Resin/Plate Water Detergent Defoamer Developer AVenhance 3048 Thin 0.5 lbs 1 gal 4oz 2oz 6oz 1oz 3048 Thick 1.5 lbs 3 gal 12 oz 6oz 18 oz 3oz 5280 Thin 1.5 lbs 4 gal 12 oz 6oz 18 oz 3oz 5280 Thick 4.5 lbs 12 gal 33 oz 18 oz 51 oz 12 oz Note: AVenhance also acts as a defoamer, so be aware that the suggested amount of defoamer can be reduced, possibly as much as 50 percent. About the Author: Randy Reynolds is business manager for AVantageTM liquid photopolymers manufactured by Anderson & Vreeland, Inc. Reynolds is responsible for all external sales and support for AVantageTM liquid photo- polymers, including corrugated, multi-wall bag and stamp resins. He is a seasoned veteran in the flexo industry with 16 years of sales and management experience. Exclusive to FLEXO TechTip#5