NON-ADSORBENT ADHESIVE COATING AGENT, NON-ADSORBENT LAMINATE, AND PACKAGING BAG

PROBLEM TO BE SOLVED: To provide a packaging bag which stores a content containing a component that is easily adsorbed by a synthetic resin therein and lowers its absorption, and is also excellent in heat sealing suitability.SOLUTION: There is provided a laminate as a laminate structuring a packagin...

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Bibliographische Detailangaben
Hauptverfasser: SASAKI YASHI, IZUMI RIEKO, HIROSE AKIRA
Format: Patent
Sprache:eng ; jpn
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Zusammenfassung:PROBLEM TO BE SOLVED: To provide a packaging bag which stores a content containing a component that is easily adsorbed by a synthetic resin therein and lowers its absorption, and is also excellent in heat sealing suitability.SOLUTION: There is provided a laminate as a laminate structuring a packaging bag which is formed by laminating a sealant layer 3, an adhesive layer 2 and a base material layer 1 in this order, where the adhesive layer is formed from a coating film containing a main agent, a curing agent and polyester resin particles, and a ratio of the polyester resin particles in the adhesive layer is 20 mass% or more and 70 mass% or less; the adhesive layer contains the polyester resin particles, and accordingly the laminate has such properties as to hardly adsorb the component; and the polyester resin particles and the polyacrylonitrile resin particles do not need to be mixed in the sealant layer, and accordingly the sealant layer exhibits heat sealing suitability inherent in the sealant layer.SELECTED DRAWING: Figure 1 【課題】合成樹脂に吸着され易い成分を含む前記内容物を収容して、その吸着を低下させると共に、ヒートシール適性にも優れた包装袋を提供すること。【解決手段】包装袋を構成する積層体として、シーラント層3、接着層2、基材層1がこの順に積層されている積層体であって、接着層が主剤、硬化剤及びポリエステル樹脂粒子を含む塗布膜から成り、接着層中のポリエステル樹脂粒子の割合が、20質量%以上、70質量%以下である積層体を使用する。接着層がポリエステル樹脂粒子を含んでいるため、この積層体は前記成分を吸着性し難い性質を有している。そして、シーラント層にはポリエステル樹脂粒子やポリアクリロニトリル樹脂粒子を配合する必要がないから、シーラント層本来のヒートシール適性を発揮する。【選択図】図1