Packaging films, packaging materials, packaging bags, and packaging bodies

JP7871523B2Active Publication Date: 2026-06-09TOPPAN HOLDINGS INC

Patent Information

Authority / Receiving Office
JP · JP
Patent Type
Patents
Current Assignee / Owner
TOPPAN HOLDINGS INC
Filing Date
2021-05-17
Publication Date
2026-06-09

AI Technical Summary

Benefits of technology

【0019】 本発明によれば、加熱処理によって、水中油分散型に対して優れた滑落性を付与できる包装材用フィルム、これを備える包装材、包装袋及び包装体が提供される。

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Patent Text Reader

Abstract

To provide a film for a packaging material which can impart excellent slipperiness to oil-in-water dispersion type contents by heating treatment.SOLUTION: A film for a packaging material includes a first resin layer including a polyolefin resin and a filler, wherein a ratio Y / X of a surface area ratio Y of the surface of the first resin layer to an arithmetic average height Sa X μm of the surface of the first resin layer is 0.4-8.0 μm-1.SELECTED DRAWING: Figure 2
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Claims

1. The first resin layer comprises a polyolefin resin, an inorganic filler, and an elastomer component. The inorganic filler content in the first resin layer is 0.5 to 10% by mass, and the amount of elastomer component added is 1 to 30 parts by mass per 100 parts by mass of the polyolefin resin. The ratio Y / X of the surface area fraction Y of the surface of the first resin layer to the arithmetic mean height SaX μm of the surface of the first resin layer is 0.4 to 8.0 μm. -1 This is a film used for packaging materials.

2. The packaging film according to claim 1, wherein the projection area ratio of the protrusions formed by the inorganic filler on the surface of the first resin layer is 8 to 45%.

3. The packaging film according to claim 1 or 2, wherein the inorganic filler includes a porous filler.

4. Substrate and A packaging film provided on the substrate, Equipped with, The aforementioned packaging film is made from the packaging film described in any one of claims 1 to 3. A packaging material in which the surface of the first resin layer of the packaging film that is opposite to the substrate is exposed.

5. A packaging bag for containing oil-in-water dispersion contents, A packaging bag formed using the packaging material described in claim 4, wherein the first resin layer is arranged on the inside.

6. The packaging bag according to claim 5, A package comprising an oil-in-water dispersion type contents sealed inside the aforementioned packaging bag.