TRANSPARENT MOISTURE ABSORBING SEALANT FILM AND TRANSPARENT MOISTURE ABSORBING LAMINATE

To provide a transparent moisture-absorbing sealant film having high transparency even after absorbing moisture, excellent manufacturability, a simple layer structure and transparency, which allows the contents can be seen, absorbs moisture from the outside and moisture in the interior space of the...

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Bibliographic Details
Main Authors TAKEUCHI NAOYA, TSUNEDA HIROTAKA
Format Patent
LanguageEnglish
Japanese
Published 14.10.2022
Subjects
ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR
CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS,e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES,DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS
CONVEYING
HANDLING THIN OR FILAMENTARY MATERIAL
LAYERED PRODUCTS
LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT ORNON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
PACKAGES
PACKAGING ELEMENTS
PACKING
PERFORMING OPERATIONS
STORING
TRANSPORTING
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Summary:To provide a transparent moisture-absorbing sealant film having high transparency even after absorbing moisture, excellent manufacturability, a simple layer structure and transparency, which allows the contents can be seen, absorbs moisture from the outside and moisture in the interior space of the package, and can suppress the deterioration of the contents due to moisture, during transportation and long-term storage.MEANS FOR SOLVING THE PROBLEM: A transparent moisture-absorbing sealant film containing an inorganic moisture-absorbing agent and a binder resin, has a refractive index of 1.3 or more and 2.0 or less, in which the binder resin has a refractive index of 1.3 or more and 2.0 or less and has heat-sealing properties, the refractive index of the inorganic moisture absorbent is 1.3 or more and 2.0 or less, the number average particle diameter of the inorganic moisture absorbent is 400 nm or more and 800 nm or less, and the content of the inorganic moisture-absorbing agent in the layer containing the inorganic moisture-absorbing agent is 0.5 mass% or more and 70 mass% or less.SELECTED DRAWING: Figure 3 【課題】本発明は、製造適性に優れ、簡易な層構成でありながら、透明で内容物を視認でき、外部からの水分及び包装された内部空間の水分を吸収して、輸送中及び長期間の保管中に、内容物が水分によって劣化することを抑制でき、吸湿後も透明性が高い透明吸湿シーラントフィルムを提供することを課題とする。【課題を解決するための手段】無機系吸湿剤と、バインダー樹脂とを含有する、透明吸湿シーラントフィルムであって、該透明吸湿シーラントフィルムの屈折率は、１．３以上、２．０以下であり、該バインダー樹脂は、屈折率が１．３以上、２．０以下であり、ヒートシール性を有し、該無機系吸湿剤の屈折率は、１．３以上、２．０以下であり、該無機系吸湿剤の数平均粒子径は、４００ｎｍ以上、８００ｎｍ以下であり、該無機系吸湿剤を含有する層中の、該無機系吸湿剤の含有量は、０．５質量％以上、７０質量％以下であることを特徴とする、透明吸湿シーラントフィルム。【選択図】図３
Bibliography:Application Number: JP20210059310