Anti-marking jackets comprised of fluoropolymer and methods of using in offset printing

摘要

In a printing press having a transfer cylinder for transferring a freshly printed substrate, an anti-marking device is provided. The anti-marking device comprises a flexible jacket comprised of fluoropolymer to engage the freshly printed substrate as it is transferred over the transfer cylinder, the anti-marking device removably attached with free play to the transfer cylinder. In an embodiment, a base cover is installed on the transfer cylinder between the anti-marking device and the transfer cylinder.

主权项

1. A method of operating a printing press having a transfer cylinder, comprising:
printing a substrate; supporting the substrate during at least a portion of the transfer of the substrate through the printing press with a flexible jacket attached to the transfer cylinder without being taut around the transfer cylinder, the flexible jacket comprised of fluoropolymer; exposing the substrate and the flexible jacket to an artificial radiation source comprising at least one of an ultraviolet lamp or an infrared lamp; and raising the temperature of the flexible jacket to a temperature greater than about 90 degrees Fahrenheit and less than about 400 degrees Fahrenheit.