Abstract: An object is to provide heat-sealable paper that is excellent in impact resistance and workability. Provided is heat-sealable paper comprising at least one heat-sealable layer on at least one surface of a paper substrate, wherein in the paper substrate, when a tensile energy absorption in a vertical direction as measured in accordance with JIS P 8113:2006 is defined as X1, a tensile energy absorption in a horizontal direction as measured in accordance with JIS P 8113:2006 is defined as Y1, a tensile energy absorption index in a vertical direction as measured in accordance with JIS P 8113:2006 is defined as X2, and a tensile energy absorption index in a horizontal direction as measured in accordance with JIS P 8113:2006 is defined as Y2, a geometric mean of X1 and Y1 is 120 J/m2 or more, a ratio of X1 to Y1 (X1/Y1) is 0.5 or more and 2.0 or less, and a geometric mean of X2 and Y2 is 2.0 J/g or more.

Abstract: Gas barrier laminate that is simple to produce and has excellent water vapor barrier properties and gas barrier properties. Also a gas barrier laminate further excellent in recyclability and heat sealing properties, and a method for producing it. The gas barrier laminate has a water vapor barrier layer and a gas barrier layer in that order on at least one surface of a paper support, wherein the water vapor barrier layer contains a layered inorganic compound, a cationic resin and an anionic binder, the aspect ratio of the layered inorganic compound is 50 or more, the thickness of the layered inorganic compound is 200 nm or less, the content of the layered inorganic compound is 0.1 to 800 parts by mass relative to 100 parts by mass of the anionic binder, and the gas barrier layer contains a water-soluble polymer. Method for producing the gas barrier material by coating.

Abstract: Provided is a gas barrier laminate that is simple to produce and has excellent water vapor barrier properties and gas barrier properties. Also provided are a gas barrier laminate further excellent in recyclability and heat sealing properties, and a method for producing it. The gas barrier laminate has a water vapor barrier layer and a gas barrier layer in that order on at least one surface of a paper support, wherein the water vapor barrier layer contains a layered inorganic compound, a cationic resin and an anionic binder, the aspect ratio of the layered inorganic compound is 50 or more, the thickness of the layered inorganic compound is 200 nm or less, the content of the layered inorganic compound is 0.1 to 800 parts by mass relative to 100 parts by mass of the anionic binder, and the gas barrier layer contains a water-soluble polymer. The invention is also a method for producing the gas barrier material by coating.