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

摘要

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.