Patents Represented by Attorney, Agent or Law Firm Richard L. Schmolz
  • Method for smoothening a paper web before coating
    Patent number: 6485611
    Abstract: A paper web is smoothened by passing the web through a pre-calender device on a paper machine before the application of a coating. The pre-calender device comprises at least one pair of steel rolls, one of which is heated, and a liquid application device which applies a thin film of water to the surface of the web which contacts the heated roll before the web enters the nip between the rolls. The web is then dried after exiting the nip either by wrapping the heated roll and/or by applying heat externally to the web.
    Type: Grant
    Filed: February 23, 2001
    Date of Patent: November 26, 2002
    Assignee: Westvaco Corporation
    Inventor: Donald G. Bauer