Gas barrier film and barrier laminate
AssigneeToppan Holdings Inc.
InventorTetsuo SATAKE
Life of this patent
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Abstract
A gas barrier film includes: a substrate layer containing polypropylene or polyethylene as a main component; a gas barrier layer formed on a side of a first surface of the substrate layer; and a heat seal layer that is formed on a second surface opposite to the first surface and contains polypropylene or polyethylene as a main component. A peel strength between the substrate layer and the heat seal layer is 1.0 N/15 mm or more and 7.0 N/15 mm or less in a 180° peel test in accordance with JIS K 6854-2, and 1.0 N/15 mm or more and 4.0 N/15 mm or less in a T-peel test in accordance with JIS K 6854-3.
Claims14
A gas barrier film, comprising:
- a substrate layer containing polypropylene or polyethylene as a main component;
- a gas barrier layer formed on a side of a first surface of the substrate layer;
- and
- a heat seal layer that is formed on a second surface opposite to the first surface and contains polypropylene or polyethylene as a main component, wherein
- a peel strength between the substrate layer and the heat seal layer is
- 1.0 N/15 mm or more and 7.0 N/15 mm or less in a 180° peel test in accordance with JIS K 6854-2, and
- 1.0 N/15 mm or more and 4.0 N/15 mm or less in a T-peel test in accordance with JIS K 6854-3.
Dependencies are inferred from the claim text.