Heat-insulating packaging film, packaging bag, and packaging bag having opening member
AssigneeHosokawa Yoko Co., Ltd.
InventorsDaisaku Ishikawa, Tomonari Shinohara, Yukio Kobayashi, Hidekazu Tanaka, Takashi Maru, Hiroshi Kohno, Masayuki Akamatsu
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Abstract
A thermal insulating packaging film which includes: a base material; and an open-cell layer disposed on one face of the base material and made of polyolefin. The open-cell layer in the thermal insulating packaging film preferably has an average bore diameter of 150 μm to 500 μm.
Claims8
A thermal insulating packaging film comprising a base material and an open-cell layer disposed on one face of the base material and made of polyolefin.
A thermal insulating packaging film comprising a base material and an open-cell layer disposed on one face of the base material and made of polyolefin, wherein an average bore diameter of an opening of the open-cell layer is larger than a thickness of the open-cell layer.
A packaging bag formed by heat-sealing the thermal insulating packaging film comprising a base material and an open-cell layer disposed on one face of the base material and made of polyolefin.
Dependencies are inferred from the claim text.