LAMINATE FILM

To provide a laminate film which, when used as a lid material for a container or the like, has a small change in an opening strength even when a sealing condition changes, and can be easily opened with an appropriate force.SOLUTION: There is provided a laminate film having a heat seal layer and one...

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Bibliographic Details
Main Authors MATSUURA YOICHI, OTANI HIROSHI, TOKUDA HIROTADA, TOYOSHIMA YUTAKA
Format Patent
LanguageEnglish
Japanese
Published 20.12.2022
Subjects
LAYERED PRODUCTS
LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT ORNON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
PERFORMING OPERATIONS
TRANSPORTING
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Summary:To provide a laminate film which, when used as a lid material for a container or the like, has a small change in an opening strength even when a sealing condition changes, and can be easily opened with an appropriate force.SOLUTION: There is provided a laminate film having a heat seal layer and one or more support layers, in which when the heat seal layer and a polypropylene sheet are heat sealed at 200°C for 1 second and at 200°C for 4 seconds, heat seal strengths are both 15 to 27 N/15 mm, and a difference is 7 N/15 mm or less.SELECTED DRAWING: None 【課題】本発明は、容器の蓋材などに使用する際、シール条件が変化しても開封強度の変化が小さく、適度な力で容易に開封できる積層フィルムを提供する。【解決手段】ヒートシール層と、１層以上の支持層を有する積層フィルムであって、ヒートシール層とポリプロピレン製シートを２００℃で１秒、および、２００℃で４秒ヒートシールしたときのヒートシール強度が、いずれも１５～２７Ｎ／１５ｍｍで、かつ、その差が７Ｎ／１５ｍｍ以下である積層フィルムである。【選択図】なし
Bibliography:Application Number: JP20210095593