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    SEAMLESS CAN BODY AND METHOD FOR PRODUCING SEAMLESS CAN BODY
    2.
    发明公开
    SEAMLESS CAN BODY AND METHOD FOR PRODUCING SEAMLESS CAN BODY 审中-公开

    公开(公告)号：EP4119252A1

    公开(公告)日：2023-01-18

    申请号：EP21766913.4

    申请日：2021-02-03

    申请人： Toyo Seikan Group Holdings, Ltd.

    发明人： KOBAYASHI, Tomomi

    IPC分类号： B21D51/26 ,  B21D22/28 ,  B65D1/16

    摘要： Provided are a seamless can body having excellent pressure resistance and a method for producing the seamless can body. The seamless can body according to the present invention includes a tubular body section (10), a peripheral ground section (20b) continuing from a lower end of the tubular body section, and a raised bottom section (30) continuing from the peripheral ground section toward a center-axis side. When an outer surface area of the raised bottom section is denoted by A D and an area of a virtual plane an outline of which is formed by the peripheral ground section is denoted by A B , a relation of 1.55 ≥ (A D /A B ) ≥ 1.40 is satisfied.

    METHOD FOR MANUFACTURING BEVERAGE CAN, BEVERAGE CAN, AND PRINTING DEVICE
    3.
    发明公开
    METHOD FOR MANUFACTURING BEVERAGE CAN, BEVERAGE CAN, AND PRINTING DEVICE 审中-公开

    公开(公告)号：EP4098571A1

    公开(公告)日：2022-12-07

    申请号：EP20916928.3

    申请日：2020-12-07

    申请人： ALTEMIRA Co., Ltd.

    发明人： OJIMA, Shinichi ,  MASUDA, Kazuhisa

    IPC分类号： B65D1/00 ,  B65D1/16 ,  B65D8/04 ,  B65D25/14 ,  B65D25/20

    摘要： A method for manufacturing a beverage use can, which is provided with a cylindrical part with one end portion and the other end portion, a bottom part positioned at the one end portion of the cylindrical part, the bottom part having an outer circumferential surface with an outer diameter gradually increasing with a move toward the other end portion of the cylindrical part, includes a protection layer forming process applying ink to the outer circumferential surface of the bottom part to form a protection layer on the outer circumferential surface.

    CAN CONTAINER
    4.
    发明公开
    CAN CONTAINER 审中-公开

    公开(公告)号：EP4071066A1

    公开(公告)日：2022-10-12

    申请号：EP20895157.4

    申请日：2020-11-05

    申请人： Toyo Seikan Co., Ltd.

    发明人： FUKUMOTO, Hayato

    IPC分类号： B65D1/46 ,  B21D51/26 ,  B65D1/16

    摘要： To provide a can container to achieve a higher pressure resistance strength by improving the shape of the bottom part of the can container. The can container includes a can barrel and a can bottom, the can bottom provided with, in a center thereof, a dome part concaved toward the inside of the can container along the can axis direction, and an annular convex part projecting toward the outside of the can container to shape an annular support part in an outer periphery of the dome part, wherein an inner peripheral surface extending from the support part of the annular convex part to an outer peripheral edge part of the dome part includes a recessed part where the outer peripheral edge part of the dome part is positioned in a direction of being farther away from the can axis than an innermost part of the inner peripheral surface.

    METHOD FOR MANUFACTURING TWO-PIECE CAN, CAN DRUM, AND METAL SHEET
    6.
    发明公开
    METHOD FOR MANUFACTURING TWO-PIECE CAN, CAN DRUM, AND METAL SHEET 审中-公开

    公开(公告)号：EP4029797A1

    公开(公告)日：2022-07-20

    申请号：EP19945264.0

    申请日：2019-09-13

    申请人： Daiwa Can Company ,  NIPPON STEEL CORPORATION

    发明人： FUKUNAGA, Minoru ,  NAKAMURA, Koichiro ,  HIRANO, Shigeru ,  TANI, Yoshiaki

    IPC分类号： B65D1/00 ,  B21D51/26 ,  B65D1/16

    摘要： A method for manufacturing a two-piece can includes punching a metal plate into a disk shape, the metal plate including a Sn-plated layer of 100 mg/m2 or more and 1500 mg/m2 or less provided on a base material made of steel, a Cr-plated layer of 6 mg/m2 or more and 100 mg/m2 or less provided on the Sn-plated layer, and a coating layer laminated on the Cr-plated layer and made of a thermoplastic resin, the metal plate having not been heat-treated and including a Ni-plated layer between the base material and the Sn-plated layer, or having been heat-treated and including no Ni-plated layer on the base material; and shaping by performing drawing and ironing on the metal plate having the disk shape into a can body having a bottomed cylindrical shape, so that the coating layer forms an inner surface of the can body, wherein in the shaping, the drawing and ironing is performed so that ((Tb-Tw)/Tb) × 100, which is a plate thickness reduction rate from the metal plate having the disk shape to the can body, is set as 35% ≤ ((Tb-Tw)/Tb) × 100(%) ≤ 60%, where Tw is a plate thickness of a thinnest part of a cylindrical wall portion of the can body, and Tb is a plate thickness of a bottom portion of the can body.