Paper calender and its operation

US4256034A · kind A · utility

Assignee

• Eduard Kusters · DE

Inventors

• Eduard Kusters · Krefeld, DE
• Werner Hartmann · Hamburg, DE

Key dates

• Filing date: Aug 17, 1979
• Grant date: Mar 17, 1981
• Expiry date: Aug 17, 1999

Classification

• Technology area (CPC F): Mechanical Engineering; Lighting; Heating
• CPC primary: F16C13/00
• WIPO field: Textile and paper machines
• WIPO sector: Mechanical engineering

Abstract

A paper calender using a polyurethane coated calendering cylinder is operated with the coating maintained at an unusually low temperature found to prevent damage to the coating when calendering at high speeds and pressures.