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    • 34. 发明公开
    • Method of manufacturing film-bonded can bodies
    • Verfahren zum Herstellen von filmbeschichtetenDosenkörpern
    • EP0808706A3
    • 1998-08-12
    • EP97302542
    • 1997-04-14
    • DAIWA CAN CO LTD
    • KUBOSHIMA AKIRAUEMATSU KENICHIYAMAGUCHI MASAHIRO
    • B65D1/12B21D51/26B29C63/06B29C65/00B65D8/16B65D25/34
    • B29C63/06B29C65/36B29C65/44B29C66/1122B29C66/4322B29C66/45B29C66/5326B29C66/71B29C66/723B29C66/742B29C66/7422B29C66/74283B29C66/83413B29C66/83415B29C2793/0081B29L2009/00B29L2031/717B29K2069/00B29K2067/006B29K2067/003B29K2067/00B29K2027/08B29K2027/06B29K2025/06B29K2023/12
    • A method of manufacturing a can body by bonding a printed film sheet having an overcoating layer on its surface to the trunk of the can body. A continuous film (21) of a synthetic resin having an overcoating layer (22) formed on its one face and a printed layer (23) and an adhesive layer (24) formed on its other face is cut into a plurality of film sheets of a size for each can to have a slightly larger width for the bottomed cylindrical metal can body than the circumferential length of the can trunk, and is then fed. The printed film sheet, as fed, is thermally adhered and bonded to the surface of the trunk surface of the can body, as heated, through an adhesive layer such that the cut ends overlap each other. Then, the bottomed cylindrical film-bonded can body is deformed. A portion (28) having no overcoating layer is formed in the estimated overlapping portion of the continuous film with a larger width than the sum of one half of the dispersion width (D2) of an estimated actual cutting position and the width (D1) of the overlapping portion. The cutting position (X) of the continuous film is set at a position which is spaced by the distance of the sum of one half of the dispersion width of the estimated actual cutting position and the width of the overlapping portion, from the end of the overcoating layer at the lower layer side of the overlapping portion.
    • 通过将其表面上具有外涂层的印刷膜片与罐体的主体结合来制造罐体的方法。 将其一面上形成有外涂层(22)的合成树脂的连续膜(21)和形成在其另一面上的印刷层(23)和粘合剂层(24)切割成多个膜片 每个罐的尺寸可以比有底的圆筒形金属罐体具有略大于罐主体的圆周长度的宽度,然后进给。 被印刷的印刷薄膜片通过粘合剂层被热粘合并结合到罐主体的表面,如加热,使得切割端彼此重叠。 然后,有底圆筒状的膜结合罐体变形。 在连续膜的估计重叠部分中形成的宽度大于估计的实际切割位置的分散宽度(D2)的一半与宽度(D1) 重叠部分。 连续膜的切割位置(X)设定在距估计实际切割位置的色散宽度的一半与重叠部分的宽度之间的距离之间的距离的距离 在重叠部分的下层侧的外涂层。