A HEAT TREATED PACKAGE FORMED FROM FIBRE BASED PACKAGING MATERIAL

The invention relates to a package intended for thermal treatment comprising a fiber-based packaging material treated with a hydrophobic size and comprising one or more layers for reduced water penetration outside and/or inside the fiber substrate. The package of the invention is characterized by th...

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Bibliographische Detailangaben
Hauptverfasser:	HARRI KUJALA, TIMO RAEISAENEN, ISTO HEISKANEN
Format:	Patent
Sprache:	eng ; por
Schlagworte:	ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS,e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES,DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS CONVEYING HANDLING THIN OR FILAMENTARY MATERIAL IMPREGNATING OR COATING OF PAPER PACKAGES PACKAGING ELEMENTS PACKING PAPER NOT OTHERWISE PROVIDED FOR PAPER-MAKING PERFORMING OPERATIONS PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D PRODUCTION OF CELLULOSE PULP COMPOSITIONS STORING TEXTILES TRANSPORTING TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G
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Beschreibung
Zusammenfassung:	The invention relates to a package intended for thermal treatment comprising a fiber-based packaging material treated with a hydrophobic size and comprising one or more layers for reduced water penetration outside and/or inside the fiber substrate. The package of the invention is characterized by the fiber substrate being treated with a combination of a wet-strength size, a hydrophobic size and an aluminum and/or calcium compound for increased heat resistance of the packaging material, and in that the ratio of hydrophobic size to the aluminium and/or calcium compound is 1:1-1:10.