EP 0285227 A1 19881005 - A process for preserving paper sheets or webs and a device for carrying out that process.

Title (en)

A process for preserving paper sheets or webs and a device for carrying out that process.

Title (de)

Verfahren zur Konservierung von Bogen und Bahnen aus Papier und Vorrichtung zur Ausführung dieses Verfahrens.

Title (fr)

Procédé de conservation de feuilles de papier et dispositif pour la mise en oeuvre de ce procédé.

Publication

EP 0285227 A1 19881005 (EN)

Application

EP 88200608 A 19880331

Priority

NL 8700766 A 19870401

Abstract (en)

This invention relates to a process for preserving paper sheets or webs, in which a solution of a deacidification agent and of a polymeric strengthening agent for the paper in an organic solvent or in a mixture of organic solvents is sprayed onto one surface of the paper, and in which a strong sucking action is exerted on the other surface of the paper so as to draw the solution through the entire thickness of the paper and also dry the treated paper at least partly. The invention also relates to a device for preserving paper sheets or webs according to the above defined process.

IPC 1-7

B05B 13/02; B05D 1/02; D21H 3/02; D21H 3/26; D21H 5/00

IPC 8 full level

D21H 25/18 (2006.01); D21H 21/18 (2006.01); D21H 23/42 (2006.01)

CPC (source: EP)

D21H 25/18 (2013.01); D21H 21/18 (2013.01); D21H 23/42 (2013.01)

Citation (search report)

[XD] US 3676182 A 19720711 - SMITH RICHARD DANIEL
[X] US 3862916 A 19750128 - HAYWORTH CURTIS B
[AD] US 3939091 A 19760217 - KELLY JR GEORGE B
[A] FR 2125963 A5 19720929 - KNUBBEN FRANZ
[A] DE 2112997 A1 19720928 - KNUBBEN FRANZ JOSEF, et al
[A] US 3899439 A 19750812 - MAHLMAN BERT H
[A] US 2633437 A 19530331 - DETJEN EDGAR W
[A] US 3958586 A 19760525 - SCHNELLE CHARLES WAYNE
[A] ABSTRACT BULLETIN OF THE INSTITUTE OF PAPER CHEMISTRY, vol. 54, no. 7, January 1984, page 785, no. 7288, Appleton, Wisconsin, US; N.G. GERASIMOVA et al.: "Study of some aqueous sizes and sizing media used in restoration of paper" & (Leningrad): 60-67 (1977).

Designated contracting state (EPC)

BE DE FR GB NL

DOCDB simple family (publication)

EP 0285227 A1 19881005; EP 0285227 B1 19921125; DE 3876121 D1 19930107; DE 3876121 T2 19930401; NL 8700766 A 19881101

DOCDB simple family (application)

EP 88200608 A 19880331; DE 3876121 T 19880331; NL 8700766 A 19870401