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FLEXO Magazine : January 2013
AVenhance Usage By Randy Reynolds AVenhance is a chemical detack component added directly into the washout unit to help generate a completely tack-free photopolymer printing plate. This additive is used with AVantageTM photopolymers 32C and 32MLR resins. AVenhance can effect how much foam is produced in the bath, so be aware that the typical amount of defoamer can be reduced, possibly by as much as 50 perent. When using AVehance, germicidal treatment is not to be used. Usage amounts: The amount of AVenhance used in a bath is dependent upon the total plate surface to be tack-free. An I-Plate type corrugated plate will require less AVenhance than conventional corrugated plates. The size of the washout unit being used will also determine the required amount of AVenhance. The last factor is if the washout bath has a feed-and-bleed operation. Amounts: • Regular Bath, Conventional or I-Plate - 3048 @ 70 gallons - 1⁄2 gal. AVenhance. • Regular Bath, Conventional or I-Plate - 5280 @ 150 gallons - 1 gal. AVenhance. Washout Cycle Time: The recommended washout temperature for 32C and 32MLR is 110°-120°F for a period of 10-15 minutes. Bath Life: Each bath should last for 15-20 plates depending upon the amount of resin being washed out after reclaiming. Generally, small plates that are 3048 in size will washout about 1.5 lbs of liquid resin. The larger 5280 plate will have roughly 4.5 lbs of resin on it after reclaiming. An I-Plate may have 3 to 3.5 lbs on its surface after reclaim. Your amount can be determined by weighing a plate before and after the washout phase. This will tell you the resin washout amount per plate. Knowing this is very useful to set the start-up bath with the required chemicals needed and estimating the plates per bath volume. 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