Packaging material made of unbleached kraft paper, seal made of packaging material, and method for producing seal

The invention relates to a packaging material (1) consisting of unbleached kraft paper as base paper, the kraft paper having a Kappa value of between 38 and 60 according to ISO 302: 2015, at least 90% of the kraft paper being produced from primary pulp and having a weight per unit area of between 65...

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Bibliographische Detailangaben
Hauptverfasser:	GUSTAFSSON, KRISTOFFER, SCHWAIGER, ERIK, SIRVEN PETER, FINK ANDREA
Format:	Patent
Sprache:	chi ; eng
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 packaging material (1) consisting of unbleached kraft paper as base paper, the kraft paper having a Kappa value of between 38 and 60 according to ISO 302: 2015, at least 90% of the kraft paper being produced from primary pulp and having a weight per unit area of between 65 g/m2 and 170 g/m2 according to ISO 536: 2019, the kraft paper further comprises at least 90% of a primary pulp comprising at least 80% of a pulp having an average length-weighted fiber length of between 2.0 mm and 2.9 mm according to ISO 16065-2: 2014, and less than 5% of a filler, as well as cationic starch and other process aids, the invention relates to a packaging material comprising a primary pulp, which is contained as ground, in particular high consistency ground, pulp having a degree of grinding according to ISO 5267-1: 1999 of between 13 DEG SR and 20 DEG SR according to Schopper-Riegler, the packaging material having gt according to ISO 1924-3: 2005; 1.1, the elongation at break MD/CD of the kraft paper,