METHOD FOR REDUCING THE WATER VAPOUR PERMEABILITY OF PAPER

The invention relates to a method of reducing the water vapor permeability of a sheet of paper, cardboard or the like, which comprises the step of coating the paper sheet with a film of 5 - 30 g/m2 of a coating medium consisting of a rosin sizing dispersion containing additives improving the film-fo...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	RUF WALTER, BACHLER JOSEF
Format:	Patent
Sprache:	eng ; slo
Schlagworte:	IMPREGNATING OR COATING OF PAPER PAPER NOT OTHERWISE PROVIDED FOR PAPER-MAKING PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D PRODUCTION OF CELLULOSE PULP COMPOSITIONS TEXTILES TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G
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Beschreibung
Zusammenfassung:	The invention relates to a method of reducing the water vapor permeability of a sheet of paper, cardboard or the like, which comprises the step of coating the paper sheet with a film of 5 - 30 g/m2 of a coating medium consisting of a rosin sizing dispersion containing additives improving the film-forming properties of the coating medium, which additives include surfactants and waxes.