INKJET PRINTER AND INKJET PRINTING METHOD USING THE SAME

    公开(公告)号:US20230102600A1

    公开(公告)日:2023-03-30

    申请号:US17983498

    申请日:2022-11-09

    Abstract: An inkjet printer for preventing ink flow, color blurring and color mixing during multicolor printing when image formation is performed with aqueous ink on a web-shaped printing base material, and an inkjet printing method using the inkjet printer. The inkjet printer is configured to perform image formation by discharging aqueous ink to a web-shaped printing base material, and includes: a conveyance mechanism configured to continuously convey the web-shaped printing base material; a single-pass system inkjet head configured to discharge the aqueous ink to a surface of the web-shaped printing base material conveyed by the conveyance mechanism; and a surface pre-heating unit arranged on an upstream side of conveyance from the single-pass system inkjet head and configured to heat at least the surface of the web-shaped printing base material. Image formation is performed on the web-shaped printing base material heated by the surface pre-heating unit.

    Gripper of a robot for gravure plate-making roll

    公开(公告)号:US10987914B2

    公开(公告)日:2021-04-27

    申请号:US16765784

    申请日:2018-11-22

    Abstract: Provided is a gripping portion structure of a gravure plate-making robot in which the accurate gripping of an unprocessed plate-making roll and the positioning accuracy during transfer of the unprocessed plate-making roll to each processing device can be improved by causing a gravure plate-making robot to exhibit a high gripping force when gripping the unprocessed plate-making roll. The gripping portion structure of a gravure plate-making robot to be used in a fully automatic gravure plate-making processing system for manufacturing a gravure plate-making roll by gripping and transferring an unprocessed plate-making roll to each processing device includes: a pair of gripping plates to be mounted on an arm distal end of the gravure plate-making robot, the pair of gripping plates being freely spaced widely or narrowly from each other, and being configured to grip both end portions of the unprocessed plate-making roll; and a gripping surface forming member provided on each of the pair of gripping plates, the gripping surface forming member having a gripping surface that is curved so as to be recessed toward a center of the end portion of the unprocessed plate-making roll to be gripped and having a non-slip function.

    Surface drying device for sheet-like non-permeable base material, printing apparatus, and printing method

    公开(公告)号:US10946673B2

    公开(公告)日:2021-03-16

    申请号:US16480656

    申请日:2018-01-10

    Abstract: Provided are a surface drying device for a sheet-like non-permeable base material with enhanced drying efficiency on a surface of a sheet-like non-permeable base material having a liquid adhering to a surface thereof, and a printing apparatus and a printing method using the surface drying device. The surface drying device for a sheet-like non-permeable base material includes: a loading port for loading a sheet-like non-permeable base material with a liquid adhering surface; an air nozzle configured to spray high-temperature air; an unloading port for unloading the sheet-like non-permeable base material; an air shield zone forming portion, which is formed between the loading port and the unloading port, and is configured to form a heat-insulating air shield so as to cover the liquid adhering surface of the sheet-like non-permeable base material; and a retained air exhaust portion configured to exhaust retained air retained on the liquid adhering surface of the sheet-like non-permeable base material to outside of the air shield zone forming portion through use of a Coanda effect, to thereby replace liquid adhering surface air on the liquid adhering surface of the sheet-like non-permeable base material.

    INKJET PRINTER FOR BOTH SURFACE PRINTING AND BACK PRINTING

    公开(公告)号:US20210060975A1

    公开(公告)日:2021-03-04

    申请号:US16958030

    申请日:2018-12-14

    Inventor: Tatsuo SHIGETA

    Abstract: Provided are an inkjet printer for both surface printing and back printing which is capable of performing both of surface printing and back printing while continuously conveying a web-shaped print base material (12) at high speed, and an inkjet printing method using the inkjet printer. The inkjet printer includes: a first white inkjet head (20a) configured to discharge a white aqueous ink to a surface of the web-shaped print base material (12) in a case of surface printing; a first drum-type drying unit (22a) configured to dry the white aqueous ink in the case of surface printing; a second white inkjet head (20b) configured to discharge a white aqueous ink to a surface of the web-shaped print base material (12) in a case of back printing; and a second drum-type drying unit (22b) configured to dry the white aqueous ink in the case of back printing.

    Aqueous gravure ink
    25.
    发明授权

    公开(公告)号:US10829651B2

    公开(公告)日:2020-11-10

    申请号:US15756341

    申请日:2016-08-03

    Abstract: Provided is an aqueous gravure ink that is environmentally friendly, allows high-resolution printing by virtue of its excellent highlight suitability, and is excellent in drying property. The aqueous gravure ink comprises: a pigment; a polymer; a water-soluble organic solvent; a surfactant; and water, in which the water-soluble organic solvent has a boiling point of 100° C. or more and 260° C. or less, in which a content of the water-soluble organic solvent in the aqueous gravure ink is 10 mass % or more and 35 mass % or less, and in which a content of the water in the aqueous gravure ink is 50 mass % or more and 70 mass % or less.

    GRAVURE PRINTING APPARATUS, GRAVURE PRINTING METHOD, AND PRINTED MATTER MANUFACTURING METHOD

    公开(公告)号:US20190160843A1

    公开(公告)日:2019-05-30

    申请号:US16312049

    申请日:2017-06-21

    Inventor: Tatsuo SHIGETA

    Abstract: Provided is a gravure printing apparatus, a gravure printing method, and a printed matter manufacturing method in which the ink transfer characteristics in gravure printing are controlled to be improved. The gravure printing apparatus includes: a gravure plate cylinder; a doctor blade configured to scrape off a superfluous ink from a plate surface of the gravure plate cylinder; an impression cylinder configured to press a base material to be printed against the plate surface to transfer the ink remaining in a cell of the gravure plate cylinder; and a transfer characteristics control mechanism configured to control ink transfer characteristics by supplying a gas selected from the group consisting of air having predetermined humidity, dry air, and an inert gas to at least a part of an ink transfer characteristics control area between an ink scraping-off point of the doctor blade on the plate surface and a pressing point of the impression cylinder on the plate surface.

    GRAVURE PRINTING PLATE AND METHOD FOR PRODUCING GRAVURE PRINTING PLATE

    公开(公告)号:US20190105892A1

    公开(公告)日:2019-04-11

    申请号:US16152927

    申请日:2018-10-05

    Inventor: Tatsuo SHIGETA

    Abstract: A gravure printing plate and a method of manufacturing a gravure printing plate, which are capable of increasing a density range as compared to the conventional case to enable suppression of moire as well as to achieve rich gradation and enable fine tone settings. The gravure printing plate includes FM screen cells and AM screen cells which are concurrently formed in a plate surface thereof, and the FM screen cells and the AM screen cells are different in depth. It is preferred that, of the cells which are different in depth, shallower cells correspond to subcells and deeper cells correspond to main cells.

    SEAMLESS CYLINDRICAL OFFSET PRINTING PLATE AND MANUFACTURING METHOD THEREFOR AND REPRODUCTION PROCESSING METHOD

    公开(公告)号:US20180370268A1

    公开(公告)日:2018-12-27

    申请号:US16060601

    申请日:2016-11-14

    Inventor: Tatsuo SHIGETA

    Abstract: Provided are a seamless cylindrical offset printing plate which enables seamless continuous printing to be performed, a manufacturing method therefor, and a reproduction processing method. The seamless cylindrical offset printing plate comprises: a cylindrical plate base material; a hydrophilic satin-like rough surface which is formed on a surface of the cylindrical plate base material; and a hydrophobic resist pattern part which is formed on the satin-like rough surface, wherein an exposed part of the satin-like rough surface serves as a non-printing area and the resist pattern part serves as a printing area.

    CYLINDER PLATING APPARATUS AND METHOD
    29.
    发明申请
    CYLINDER PLATING APPARATUS AND METHOD 审中-公开
    圆筒镀膜装置及方法

    公开(公告)号:US20170073833A1

    公开(公告)日:2017-03-16

    申请号:US15125314

    申请日:2015-02-26

    Abstract: Provided are a cylinder plating apparatus and a cylinder plating method, in which the distance between an insoluble electrode and a cylinder to be processed can be kept constant regardless of the diameter of the cylinder to be processed, and the surface area of the insoluble electrode is increased to reduce the current density of the insoluble electrode, thereby being capable of reducing burden on the insoluble electrode. The cylinder plating apparatus is configured to plate an outer peripheral surface of the cylinder to be processed in such a manner that a pair of the insoluble electrodes each having a shape in which at least a lower part thereof is curved inward and being constructed such that at least the lower part has a comb-like portion are brought close to both side surfaces of the cylinder to be processed with predetermined intervals. The insoluble electrodes face each other in a staggered pattern so that projections of the comb-like portion of one of the insoluble electrodes are located at positions of recesses of the comb-like portion of another one of the insoluble electrodes. The insoluble electrode is configured to rotate about an upper end of the insoluble electrode so that the distance of closeness of the insoluble electrode to the outer peripheral surface of the cylinder to be processed is adjustable depending on the diameter of the cylinder to be processed.

    Abstract translation: 提供了一种圆筒镀覆装置和圆筒镀覆方法,其中不溶性电极和待处理圆筒之间的距离可以保持恒定,而不管待处理圆筒的直径如何,不溶性电极的表面积是 增加以降低不溶性电极的电流密度,从而能够减少不溶性电极的负担。 气缸电镀装置被构造成使待加工气缸的外周面以这样一种方式平板化:一对不溶性电极,每个不溶电极的至少其下部向内弯曲并被构造成使得在 至少下部具有梳状部分以预定的间隔靠近待处理气缸的两个侧表面。 不溶性电极以交错图案彼此面对,使得不溶性电极之一的梳状部分的突起位于另一个不溶性电极的梳状部分的凹部的位置。 不溶性电极被配置为围绕不溶性电极的上端旋转,使得不可溶电极与待处理气缸的外周表面的接近距离可根据待处理气缸的直径而调节。

    MODULE-TYPE PROCESSING UNIT AND TOTALLY AUTOMATED MANUFACTURING SYSTEM FOR GRAVURE CYLINDER USING SAME
    30.
    发明申请
    MODULE-TYPE PROCESSING UNIT AND TOTALLY AUTOMATED MANUFACTURING SYSTEM FOR GRAVURE CYLINDER USING SAME 有权
    模块式加工机组及全自动化制造系统

    公开(公告)号:US20170021608A1

    公开(公告)日:2017-01-26

    申请号:US15124864

    申请日:2015-02-19

    Inventor: Tatsuo SHIGETA

    CPC classification number: B41F3/54 B41C1/00 B41C1/18 B41F13/11 B41N1/06 B41N1/16

    Abstract: Provided are a modular processing unit that is standardizable, capable of enhancing production efficiency, and is also flexibly customizable, and a fully automatic gravure cylinder manufacturing system using the modular processing unit. The modular processing unit includes a pair of frame members provided upright so as to face each other, a first processing module including a first processing bath module, a first beam module provided horizontal to a floor, and a first chuck module, and a second processing module including a second processing bath module, a second beam module provided horizontal to the floor, and a second chuck module. The modular processing unit has multi-stage structure with at least the first processing module and the second processing module being assembled onto the frame members.

    Abstract translation: 提供了可标准化的模块化处理单元,能够提高生产效率,并且还可灵活定制,以及使用模块化处理单元的全自动凹版滚筒制造系统。 模块化处理单元包括一对直立地彼此相对地设置的框架构件,第一处理模块,包括第一处理槽模块,水平放置在地板上的第一梁组件和第一夹紧模块,第二处理模块 模块,包括第二处理槽模块,水平地设置在地板上的第二梁组件和第二夹紧模块。 模块化处理单元具有多级结构,至少将第一处理模块和第二处理模块组装到框架构件上。

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