GAS BARRIER FILM AND METHOD FOR PRODUCING THE SAME

    公开(公告)号:US20220411598A1

    公开(公告)日:2022-12-29

    申请号:US17899507

    申请日:2022-08-30

    Applicant: TOPPAN INC.

    Abstract: A gas barrier film comprising a resin base material, an oxygen barrier coating provided on at least one surface of the resin base material, and a base layer and/or an inorganic oxide layer provided between the resin base material and the oxygen barrier coating, wherein the black area ratio of one surface measured by the following measuring method is 0.15% or less: An arbitrary region of 1281 μm square on one surface of a resin base material is photographed with an optical microscope to acquire a photographed image of 1024×1024 pixels, the photographed image is converted into a monochrome image of 256 gradations using an image analysis software, and the value obtained by subtracting 30 from the most frequent value of the luminance in the monochrome image is set as the threshold, the value less than the threshold is set to black, and the value not less than the threshold is set to white, thus binarizing the luminance, and the ratio of the total area of the black regions having a size of 100 μm2 or more in the 1281 μm square region is defined as the black area ratio.

    GAS BARRIER LAYERED BODY, AND PACKAGING MATERIAL AND TUBE CONTAINER USING SAME

    公开(公告)号:US20220267067A1

    公开(公告)日:2022-08-25

    申请号:US17630072

    申请日:2020-07-22

    Applicant: TOPPAN INC.

    Abstract: The present disclosure relates to a gas barrier layered body including: a substrate layer containing a polyolefin-based resin; a first polyvinyl alcohol-based resin layer; a Si or Al-containing thin film layer; and a second polyvinyl alcohol-based resin layer, in the stated order, in which a logarithmic decrement at 100° C. of the first polyvinyl alcohol-based resin layer as measured by a rigid-body pendulum type physical property testing instrument is 0.20 or less and a logarithmic decrement at 125° C. is 0.30 or less, and an indentation hardness of the second polyvinyl alcohol-based resin layer as determined by a nanoindenter is 0.5 to 1.0 GPa.

    LAMINATE AND PACKAGING BAG
    8.
    发明申请

    公开(公告)号:US20220153006A1

    公开(公告)日:2022-05-19

    申请号:US17585870

    申请日:2022-01-27

    Applicant: TOPPAN INC.

    Abstract: A laminate including a first base material layer, a second base material layer, and a sealant layer in this order, wherein all three layers include a polyolefin film; the polyolefin film of the first base material layer or the second base material layer includes an inorganic oxide layer on at least one surface thereof; and each of the first base material layer, the second base material layer, and the sealant layer has a heat shrinkage rate, in a travel direction after heating at 120° C. for 15 minutes, which satisfies the following inequalities: heat shrinkage rate of the second base material layer≤5% (Inequality 1); heat shrinkage rate of the second base material layer≥heat shrinkage rate of the first base material layer (Inequality 2); and, heat shrinkage rate of the second base material layer≥heat shrinkage rate of the sealant layer (Inequality 3). ws

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