LAMINATE FILM AND METHOD FOR PRODUCING THEREOF

• Main Authors: OTA KAZUYOSHI, SAWAMOTO KEIKO, TAKADA HAGUMU
• Format: Patent
• Language: English; Japanese
• Published: 31.08.2017
• Subjects: APPLYING LIQUIDS OR OTHER FLUENT MATERIALS TO SURFACES, IN GENERAL; LAYERED PRODUCTS; LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT ORNON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM; PERFORMING OPERATIONS; PROCESSES FOR APPLYING LIQUIDS OR OTHER FLUENT MATERIALS TOSURFACES, IN GENERAL; SPRAYING OR ATOMISING IN GENERAL; TRANSPORTING

PROBLEM TO BE SOLVED: To provide a laminate film having a resin layer that exhibits general adhesiveness to PVAs with a wide range of saponification degree, and can maintain the adhesiveness even when the processing temperature for PVA lamination is under a low-temperature condition.SOLUTION: A laminate film has a resin layer (X) on at least one side of a polyester film, and the resin layer (X) has a surface zeta potential of -20 mV or higher and lower than 0 mV.SELECTED DRAWING: None 【課題】幅広いケン化度を有するＰＶＡに対して、汎用接着性を有し、またＰＶＡ積層時の加工温度が低温条件下においても、その接着性を維持することができる樹脂層を有する積層フィルムを提供すること。【解決手段】ポリエステルフィルムの少なくとも一面に樹脂層（Ｘ）を有する積層フィルムであって、当該樹脂層（Ｘ）の表面ゼータ電位が−２０ｍＶ以上、０ｍＶ未満である積層フィルム。【選択図】なし