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FLEXO Magazine : October 2010
Technologies & Techniques Take the sam- ples collected during verifi- cation run to match. Use the same job-spe- cific substrate, removing a vari- able. Why would you match color on a coated substrate if job was to run on uncoated? Different substrates may have different absorption, gloss, etc. that can affect the appearance of color. Perform drawdowns using a variety of proofer rolls until you find a volume that delivers desired color strength. Document steps taken to achieve set goals and create an SOP. Commu- nicate the process, results, and documented SOP with parties affected to ensure everyone has a clear understanding of what is expected. We know that, traditionally, a press operator was heavily re- lied upon to not only do basic functions like installing tooling or maintaining and running the press, but also to become the de- facto magician for ink, plate and print woes. Giving operators a hodge-podge approach to job construction dictates the need for creative compromises. These compromises make it difficult to achieve repeatable success with so many variables. Your customer’s expectations have elevated, so your methods must be modified to meet the challenge. Remove those troublesome, nagging variables by following the team concept, testing and procedure development to help replace the guess work of old methods. The ultimate goal is to predict results so we can meet customer expectations and repeat them with optimized effort in the future. n ABOUT THE AUTHOR: Bill Malm is the midwest/west coast technical graphics advisor for Harper Graphic-Solutions, a division of Harper Corporation of America. Prior to joining the Harper team, Malm had been in the narrow web printing industry for 14 years. During this time, he was involved in a number of process improvement teams, focusing on issues of corporate standards, color management, and set up reduction. He has run a variety of presses in the production of labels, multi web constructions, coupons, and games. A hand proofer. www.flexography.org october 2010 FLeXO 55 FLX_Oct10_mech.indd 55 10/15/10 12:32 AM
Sustainable Fall 2010