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公开(公告)号:US20230024477A1
公开(公告)日:2023-01-26
申请号:US17956057
申请日:2022-09-29
摘要: A printing apparatus configured to print an image on a can body includes: a blanket transfer device configured to transfer ink on a plurality of printing plates to a blanket; and a can body transfer device configured to transfer the ink having been transferred on the blanket to the can body to print the image on the can body. The plurality of printing plates include a first printing plate and a second printing plate to print a specified image of the image. The first printing plate is configured to print a border image which is a border part of the specified image, and the second printing plate is configured to print a vicinity of the border image in the specified image.
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公开(公告)号:US20230043919A1
公开(公告)日:2023-02-09
申请号:US17949596
申请日:2022-09-21
摘要: A printing apparatus configured to print a can body includes: a plurality of printing plates; a blanket; a blanket transfer device configured to transfer inks on the plurality of printing plates to the blanket; and a can body transfer device configured to transfer the inks transferred to the blanket to the can body. The blanket transfer device transfers the inks such that at least part of an ink transferred from one printing plate is superimposed onto at least part of inks in other colors transferred from other printing plates.
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公开(公告)号:US20220212461A1
公开(公告)日:2022-07-07
申请号:US17703283
申请日:2022-03-24
摘要: A plate-making method for manufacturing a printing plate includes: manufacturing the printing plate based on a knockout method in which knockouts of halftone dots in one color are formed, and halftone dots in the other color are overprinted onto positions of the knockouts; for each of pixels, when a sum of a halftone dot area ratio of the one color and a halftone dot area ratio of the other color is smaller than 100%, forming a gap from a knockout in the one color around a halftone dot in the other color; and for each of pixels, when the sum of the halftone dot area ratio of the one color and the halftone dot area ratio of the other color is greater than 100%, forming an overmask such that the halftone dot in the other color penetrates a periphery of the halftone dot in the one color.
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