PAPER COMPOSITE, PACKAGING MATERIAL AND PRODUCTION METHOD OF PAPER COMPOSITE

Provided is a paper composite being superior in grease resistance, water resistance, and water vapor permeability, with an improvement of the grease resistance being enabled upon imparting grease resistance by using a greaseproof ing agent having 6 or less carbon atoms, without increasing the amount...

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Bibliographische Detailangaben
Hauptverfasser:	KAWANA, Junsuke, KAWAGOE, Masako, KUMAKI, Yosuke, MASUDA, Sho
Format:	Patent
Sprache:	eng ; fre ; ger
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:	Provided is a paper composite being superior in grease resistance, water resistance, and water vapor permeability, with an improvement of the grease resistance being enabled upon imparting grease resistance by using a greaseproof ing agent having 6 or less carbon atoms, without increasing the amount of the greaseproofing agent used. The present invention is a paper composite comprising: a paper substrate having an air permeation resistance of 1,000 sec or less and bulk density of 0.5 g/cm 3 or greater and 1.0 g/cm 3 or less; and a greaseproof layer formed on at least one surface side of the paper substrate, wherein the greaseproof layer comprises a specific ethylene-vinyl alcohol polymer (A) and a cationic fluorine-containing polymer (B) having two specific constitutional units, a content of the cationic fluorine-containing copolymer (B) is 5 parts by mass or greater and 50 parts by mass or less with respect to 100 parts by mass of the vinyl alcohol polymer (A), and an amount of the greaseproof layer being overlaid on dry mass basis is 0.1 g/m 2 or greater and 3.0 g/m 2 or less, and a water vapor permeability of the paper composite is 1,000 g/m 2 ·24 h or greater.