초록 ▼

It is an object of the present invention to provide a gas barrier film improved in gas barrier characteristics by decreasing the adsorbent of the surface of a gas barrier layer to water and the like. The present invention attains the above object by providing a gas barrier film comprising a substrat

It is an object of the present invention to provide a gas barrier film improved in gas barrier characteristics by decreasing the adsorbent of the surface of a gas barrier layer to water and the like. The present invention attains the above object by providing a gas barrier film comprising a substrate, a gas barrier layer which is a vacuum deposition film, formed on one surface or both surfaces of the above substrate, and a water-repellent layer which is a film having water repellency, formed on the above gas barrier layer.

대표청구항 ▼

1. A gas barrier film comprising a substrate, a gas barrier layer which is a transparent layer formed of an inorganic oxide, formed on one surface or both surfaces of the substrate, and a water-repellent layer which is a film having water repellency, formed directly on the gas barrier layer on the s

1. A gas barrier film comprising a substrate, a gas barrier layer which is a transparent layer formed of an inorganic oxide, formed on one surface or both surfaces of the substrate, and a water-repellent layer which is a film having water repellency, formed directly on the gas barrier layer on the side of said gas barrier layer opposite the substrate,wherein the gas barrier film further comprises a water-repellent layer which is a film having water repellency, formed between the substrate and the gas barrier layer. 2. A gas barrier film according to claim 1, wherein the contact angle with water on the surface of the water-repellent layer is 60° or more (measuring temperature: 23° C.).3. A gas barrier film according to claim 1, wherein the water-repellent layer is a layer formed by a vacuum deposition method.4. A gas barrier film according to claim 3, wherein the water-repellent layer is an organic film comprising a metal skeleton and having a methyl group, an organic film constituted of only carbon and hydrogen (C and H) or a film containing fluorine (F).5. A gas barrier film according to claim 4, wherein the organic film comprising a metal skeleton and having a methyl group is an organic silicon type material represented by Six(CH3)y or (SiO)x(CH3)y or its polymer film.6. A gas barrier film according to claim 4, wherein the film containing fluorine (F) is an organic silicon fluoride material represented by SixCyFz or its polymer film, a silicon fluoride material represented by SixFy or its polymer film, or a fluorine-containing hydrocarbon type material represented by CxFy or its polymer film.7. A gas barrier film according to claim 3, wherein the film thickness of the water-repellent layer is in a range from 1 nm to 1000 nm.8. A gas barrier film according to claim 1, wherein the water-repellent layer is a layer obtained by melting a thermoplastic resin having water repellency and by applying the melted resin.9. A gas barrier film according to claim 1, wherein the water-repellent layer is a layer obtained by applying a water-repellent layer-forming coating solution prepared by dissolving or suspending a water-repellent layer-forming material having water repellency in a solvent.10. A gas barrier film according to claim 1, wherein the gas barrier layer and water-repellent layer are laminated plurally.11. A gas barrier film according to claim 10, wherein a total of five layers of the water-repellent layer and gas barrier layer are laminated in this order.12. A gas barrier film according to claim 1, wherein the gas barrier film has an oxygen transmission rate of 0.5 cc/m2/day atm or less and a water vapor transmission rate of 0.5 g/m2/day or less.13. A laminate material comprising a heat sealing resin layer disposed on at least one surface of the gas barrier film as claimed in claim 1.14. A packaging container produced by using the laminate material as claimed in claim 13 and by thermally fusing the heat sealing resin layer to carry out bag-making or box-making.15. A gas barrier film comprising a substrate, a gas barrier layer which is a transparent layer formed of an inorganic oxide, formed on one surface or both surfaces of the substrate, and a water-repellent layer which is a film having water repellency, formed directly on the gas barrier layer,wherein the water-repellent layer is a layer formed by a vacuum deposition method, and the film thickness of the water-repellent layer is in a range from 1 nm to 1000 nm. 16. A gas barrier film according to claim 15, wherein the gas barrier film further comprises the water-repellent layer which is a film having water repellency, formed between the substrate and the gas barrier layer.17. A gas barrier film according to claim 15, wherein the contact angle with water on the surface of the water-repellent layer is 60° or more (measuring temperature: 23° C.).18. A gas barrier film according to claim 15, wherein the water-repellent layer is a layer formed by a vacuum deposition method.19. A gas barrier film according to claim 15, wherein the water-repellent layer is an organic film comprising a metal skeleton and having a methyl group, an organic film constituted of only carbon and hydrogen (C and H) or a film containing fluorine (F).20. A gas barrier film according to claim 19, wherein the organic film comprising a metal skeleton and having a methyl group is an organic silicon type material represented by Six(CH3)y or (SiO)x(CH3)y or its polymer film.21. A gas barrier film according to claim 19, wherein the film containing fluorine (F) is an organic silicon fluoride material represented by SixCyFz or its polymer film, a silicon fluoride material represented by SixFy or its polymer film, or a fluorine-containing hydrocarbon type material represented by CxFy or its polymer film.22. A gas barrier film according to claim 15, wherein the water-repellent layer is a layer obtained by melting a thermoplastic resin having water repellency and by applying the melted resin.23. A gas barrier film according to claim 15, wherein the water-repellent layer is a layer obtained by applying a water-repellent layer-forming coating solution prepared by dissolving or suspending a water-repellent layer-forming material having water repellency in a solvent.24. A gas barrier film according to claim 15, wherein the gas barrier layer and water-repellent layer are laminated plurally.25. A gas barrier film according to claim 24, wherein a total of five layers of the water-repellent layer and gas barrier layer are laminated in this order.26. A gas barrier film according to claim 15, wherein the gas barrier film has an oxygen transmission rate of 0.5 cc/m2/day or less and a water vapor transmission rate of 0.5 g/m2/day or less.27. A laminate material comprising a heat sealing resin layer disposed on at least one surface of the gas barrier film as claimed in claim 15.28. A packaging container produced by using the laminate material as claimed in claim 27 and by thermally fusing the heat sealing resin layer to carry out bag-making or box-making.