Cutting Die Technology for Ultra-Thin Liners
Along with advanced flexible cutting die technology, machine-finished solid rotary tooling remains an industry option to achieve the tight tolerances on blade edge consistency and total height required for 20/23/25 micron PET.
Maintenance is critical
Beyond the cutting dies, care must be taken to maintain overall die station performance. A strong program of preventive maintenance is necessary as you address the converting challenges of thin film liners. In particular, a very smooth anvil surface must be maintained. Work with your die supplier to audit your anvil inventory. At the same time, excessive wear in the die frame slots can mean your anvil and dies are not being held firmly, which can lead to an inconsistent die strike. Similarly, bearers on support rolls and magnetic cylinders or solid dies should be inspected for wear that could affect liner impression.