Paper barrier material

The present invention addresses the problem of providing a paper barrier material which is less likely to be damaged by the expansion of water vapor when heated. To solve the problem, provided is a paper barrier material comprising a gas barrier layer, a sealing layer, a paper substrate, and a pigme...

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Bibliographic Details
Main Authors OKAMOTO, Masashi, KATO, Masatsugu, OISHI, Yuri, MIYAJIMA, Akio, FUKUNAGA, Masaaki, KOYAMOTO, Hiroshi
Format Patent
LanguageEnglish
Published 15.09.2022
Subjects
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
LAYERED PRODUCTS
LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT ORNON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
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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Summary:The present invention addresses the problem of providing a paper barrier material which is less likely to be damaged by the expansion of water vapor when heated. To solve the problem, provided is a paper barrier material comprising a gas barrier layer, a sealing layer, a paper substrate, and a pigment coating layer laminated in this order, wherein the air-permeation resistance of a laminate consisting of the paper substrate and the pigment coating layer is 2500 seconds or less as measured according to JAPAN TAPPI No. 5-2:2000.
Bibliography:Application Number: AU20200241935