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FLEXO Magazine : June 2012
The difference is the number of pixels used to create the file making an HD roll much sharper and allows it to lay down a consistent thin layer of ink on the dot surface, something that is key when applying ink onto flat top dot technology, or a combination of different FM and AM dot sizes. The makeup of an HD plate is very different than that of a conventional CTP plate. It's made up by a number of variable dot sizes and sup- port dots on the plate. The variable dots give a much better lay down of ink, but the anilox roll selection and type of engraving is critical to get the best-printed result. Otherwise printers are just wast- ing money on higher priced plates with no real value. The benefits are clear when you run all the elements in a CTP and HD environment. Using an EFlo-HDTM Anilox at a lower BCM volume and higher line screen allows the ink to transfer at a much better rate to the plate, resulting in a sharper and cleaner dot, along with a higher contrast of color. LASER MANIPUPATION EFlo-HDTM branded PHD engravings are the result of Pamarco's investment into latest thermal YAG laser technolo- gy applying custom software, laser optics and custom param- eters, that when combined, provide the ability to manipulate and control laser engravings to unprecedented levels. The technology provides the ability to produce custom cells by employing a variety of software applications and opti- cal paths that produce a large selection of laser engraving manipulation tools. The PHD cell itself evolved from Pamarco's EFloTM product line. After studying the attributes of the EFloTM and its transfer characteristics we felt the EFloTM would be perfect as a foun- dation for the formation of the PHD engraving. The standard EFloTM product is produced by the use of either "multi-beam" or "multi-hit" laser manipulation, depend- ing on the screen count and volume. This cell has found a home in many applications where attributes, such as low dot gain, increased ink transfer, improved solid ink coverage and cleaner highlights have been realized. The PHD product has enhanced the cell structure to work in concert with HD digital plate technology to produce superior densities and contrasts at higher line screens along with all the other attributes of the EFloTM product. About the Author: Dave McBeth is is the global vice presi- dent of sales and marketing for Pamarco Global Graphics. He joined Pamarco in 2006 as European vice president and transferred to the U.S. in 2008. He is formally of Creo (now Kodak), where he held the position of packaging sales direc- tor, based out of Vancouver, Canada, working on digital flexo advancements, specifically CTP technology. McBeth has an MBA in business and economics. The Truth About Roll Cleaning Safe, Smart, Superior Sani-BlastTM www.eaglewoodtech.com (800) 347-1959 Sani-BlastTM Anilox Roll Cleaning Systems can safely reach the bo om of even the highest line cells and the ARMEX® Cleaning Media minimizes waste disposal concerns. 2. The Truth About Roll Cleaning Safe, Smart, Superior Sani-BlastTM www.eaglewoodtech.com (800) 347-1959 The truth is that cleaning rolls with Sani-BlastTM Anilox Roll Cleaning Systems is the most effec ve and green method on the market. The ARMEX® Cleaning Media is completely non-toxic and non-hazardous. 1. Made in the USA Made in the USA www.flexography.org JUNE 2012 FLEXO 63