EP 0285227 B1 19921125 - 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
Publication
Application
Priority
NL 8700766 A 19870401
Abstract (en)
[origin: EP0285227A1] 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
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)
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