Process for satining paper and calender for carrying out the process

US5816143A · kind A · utility

Assignee

• Voith Sulzer Finishin GmbH · DE

Inventors

• Ulrich Wagner · Bernburg, DE
• Dirk Cramer · Duisburg, DE

Key dates

• Filing date: Feb 25, 1997
• Grant date: Oct 6, 1998
• Expiry date: Feb 25, 2017

Classification

• Technology area (CPC D): Textiles; Paper
• CPC primary: D21G1/00
• WIPO field: Chemical engineering
• WIPO sector: Chemistry

Abstract

A process and device for satining paper may include guiding a sheet through a roll gap defined by a heated hard roll and a soft roll having with a covering. A paper sheet width of the paper may be less than a width of a cylindrical part of each of the covering and the hard roll. The two rolls may be axially adjusted in relation to each other and in accordance with the paper sheet width. Further, the two rolls are positioned such that a first sheet edge is located adjacent a first end of the cylindrical part of the covering and a second sheet edge is located adjacent a second end of the cylindrical part of the hard roll. That is, the cylindrical parts of the covering and hard roll are positioned to be directly over each other, i.e., beyond the sheet edge, at most by a predetermined permissible edge width.