Bankrollers

Praxair Surface Technologies, too, is taking a two-pronged engraving approach, offering a proprietary, multi-step process that sculpts each cell by manipulating laser energy, resulting in a consistent cell shape and smooth cell walls that rival the appearance of mechanical engravings, says Michael McPherron, general manager of Praxair's North American printing business. Praxair also employs YAG technology to engrave rolls with screen counts exceeding 1,500 lines per inch.