Cutting Die Technology for Ultra-Thin Liners

Another key process at the converter level is testing for liner strike control on-press. The margin between acceptable or unacceptable die strike is 2.5 microns (0.0001˝) out of die tolerance. High-volume, automatically applied labels require a lighter impression with no room for error. A converter should perform liner strike testing at the beginning of each run and at the end of each master roll to assure consistent quality. Some converters test every new role of material as it moves on-press. With the rapid growth of thin polyester liners, multiple new options for testing have been developed to test die strike impact for high-speed dispensing.