Method and apparatus for treating a web of paper or board

摘要

A method and apparatus for treating a web of paper or board applies a functional coating to the web, followed by calendaring. The functional coating is first applied without direct contact between a coating supplier and the web. Next, the web is calendered utilizing a broad nip in a shoe calendar, the shoe calendar having a shoe roller with a rotating outer cover and a squeeze roller. The shoe calendar has a shoe roller exhibiting a rotating outer cover and a squeeze roller interacting with the shoe roller.