Patent · US Expired

Process for the simultaneous treatment of the top and bottom sides of a web of paper support

US5869131A · kind A · utility

1Cited by

3References

11Claims

0Family size

Assignee

BEIERSDORF AG · DE

Inventors

Frank Henke · Neu Wulmstorf, DE
Karsten Seitz · Oberursel, DE
Ralf Hirsch · Quickborn, DE
Christian Detzer · Hamburg, DE
Herbert Knolle · Reinbek, DE

Key dates

Filing date	Aug 20, 1997
Grant date	Feb 9, 1999
Priority date	—
Expiry date	Aug 20, 2017

Classification

Technology area (CPC D)Textiles; Paper
CPC primaryD21H27/06
WIPO fieldTextile and paper machines
WIPO sectorMechanical engineering

Abstract

Process for the simultaneous treatment of the top and bottom sides of a web of paper support each with a liquid coating material, wherein PA0 a) the web of paper support is passed through the gap between two rubber rollers rotating in the same direction, PA0 b) the top side of the web of paper support is treated with the first coating material by means of a first rubber roller, PA1 the first coating material is transferred to the first rubber roller by a first screen roller rotating in the opposite direction, PA1 the first coating material is applied to the first screen roller by means of a pouring device, PA0 c) the bottom side of the web of paper support is treated with the second coating material by means of a second rubber roller, PA1 the second coating material is transferred to the second rubber roller by a second screen roller rotating in the opposite direction, PA1 the second coating material is applied to the second screen roller by means of a pouring device.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.