Toyobo Co., Ltd.

Tomoyuki Hashida

Masayuki Haruta

Shintaro Ishimaru

Hiroko Maruyama

Yosuke Otani

The present invention provides a polyester-based film for keeping freshness, comprising a polyester-based resin layer comprising, ethylene terephthalate as a main component, wherein the polyester-based film satisfies the requirements (1) to (4); that can extend the shelf life of the contents such as fruits and vegetables when using as a packaging bag, increase a commodity value, and re-close even after the packaging bag opened.

Polyester-based film for keeping freshness and packaging bag

It is provided that a film for packaging and a packaging bag that can suppress diffusion of odor to hold the twisted state even after placing an object at the center of a film, wrapping the object, twisting the upper part of the object and leaving it for a certain time. The film of the present invention is the film for packaging comprising a resin film, wherein the twist holding angle is 400 degrees or more.

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Osaka, Japan

Tomoyuki Hashida