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1. 发明专利

JPH0481947B2 失效
公开(公告)号：JPH0481947B2
公开(公告)日：1992-12-25
申请号：JP6502587
申请日：1987-03-19
申请人： TOPPAN PRINTING CO LTD
发明人： YAMANAKA YASUO , TAKIZAWA HIROSHI
IPC分类号： B41F33/14 , B41F33/06

2. 发明专利

JPH03210559A PRINTED MATTER OF ENDLESS PATTERN BY FEEDING OF HEXAGONAL IMAGE AND PRODUCTION OF PHOTOGRAPHIC ORIGINAL PLATE THEREOF 失效
公开(公告)号：JPH03210559A
公开(公告)日：1991-09-13
申请号：JP684290
申请日：1990-01-16
申请人： TOPPAN PRINTING CO LTD
发明人： AOZUKA YOSHIYUKI , YAMADA AKIRA , TAKIZAWA HIROSHI
IPC分类号： G03F1/88 , B41C1/18
摘要： PURPOSE:To form patterns which are inconspicuous in running and unequalness of patterns by forming the images or patterns of a hexagonal or deformed hexagonal shape to endless patterns including rotation as necessary. CONSTITUTION:The hexagonal images or patterns 1 are exposed in vertical and lateral directions continuously or continuously including rotationally on a photosensitive material by a photocomposer in the process for producing the photocomposing joint endless original plate for a photomechanical process. Further, the original plate 21 formed with curves, such as sine curves, on the respective sides by deforming the hexagonal mask original plate 1 may be used so as to be inconspicuous joint parts. The generation of the running and unequalness, etc., of the patterns is prevented in this way and the endless printed matter of the natural joint and the photographic original plate thereof are formed.

3. 发明专利

JPS63191638A METHOD FOR REGISTERING PRINTED MATTER 失效
公开(公告)号：JPS63191638A
公开(公告)日：1988-08-09
申请号：JP2438587
申请日：1987-02-04
申请人： TOPPAN PRINTING CO LTD
发明人： YAMANAKA YASUO , TAKIZAWA HIROSHI
IPC分类号： B41F17/14 , B41F33/06 , B41F33/14
摘要： PURPOSE:To facilitate recognition of shifting of registration, by printing solid printing sections having a similar shape while overlapping sequentially, then observing the overlapped state. CONSTITUTION:A register mark 2 of second color having a shape similar to that of a register mark 1 of first color is solid printed onto the solid printed register mark 1 of first color while being overlapped. Furthermore, register marks 3, 4, 5 of third, fourth, fifth colors having a shape similar to that of the register mark 1 and sequentially decreasing area are solid printed sequentially while overlapping each other. Correct registration is recognized by checking whether circumferential portion of a register mark formed in a layer immediately under a register mark of each printing color appears uniformly at four sides. With such a method, shifting of respective register mark is represented as a clear frame section which can be recognized easily.

4. 发明专利

JPS6392455A REGISTERING METHOD FOR PRINTED MATTER 失效
公开(公告)号：JPS6392455A
公开(公告)日：1988-04-22
申请号：JP5079087
申请日：1987-03-05
申请人： TOPPAN PRINTING CO LTD
发明人： TAKIZAWA HIROSHI , YAMANAKA YASUO
IPC分类号： B41F33/14 , B41F33/06
摘要： PURPOSE:To perform registering rapidly and accurately, by providing a large number of square frame-shaped registering marks to a mark forming part and forming each of the registering marks of respective printing colors into a similar small square and allowing the spaces between said marks to appear uniformly. CONSTITUTION:A registering part is constituted of a frame-shaped registering mark 7 and the registering marks 1-6 of respective printing colors and, when the spaces between the frame-shaped registering mark and the registering marks of the respective printing colors are respectively set to a uniformly appearing state, the registering of all of colors is performed accurately. When said spaces do not appear uniformly and the space around the registering mark 3 of the third color becomes nonuniform, it is judged that no registering is performed. Since registering accuracy is not directly affected by whether printing colors are approximate to each other, the selection range of the printing colors becomes wide and registering work can be performed rapidly and accurately.

5. 发明专利

JPS6459353A PLATE MAKING METHOD 失效
公开(公告)号：JPS6459353A
公开(公告)日：1989-03-07
申请号：JP21679387
申请日：1987-08-31
申请人： TOPPAN PRINTING CO LTD
发明人： TAKIZAWA HIROSHI , SATO TOKU , AOZUKA YOSHIYUKI , TAKAHASHI TAKESHI
IPC分类号： G03F1/00
摘要： PURPOSE:To obtain a satisfactorily blurred image by disposing a printer glass so as to exist between a diffusion base and photosensitive film. CONSTITUTION:An opaque mask 2 is superposed on one face of the printer glass 1 in the position where the end part coincides approximately with the end part X of a transparent film 4 and where the film 4 does not exist; furthermore, the diffusion base 3 which diffuses transmitted light is superposed thereon and light is projected thereto from the diffusion base 3 side to partly expose the photosensitive film 5. The other end Y of the film 4 is then positioned on the printer glass 1 so as to be positioned to the unexposed part B of the photosensitive film 5 and the mask 2 is positioned to the already exposed part A of the photosensitive film 1. The unexposed part Y of the photosensitive film 5 is then exposed by photoirradiation from the diffusion base 3 side. The images on both sides are thereby satisfactorily merges in.

6. 发明专利

JPS63306039A PROOF PRINTING METHOD FOR GRAVURE 失效
公开(公告)号：JPS63306039A
公开(公告)日：1988-12-14
申请号：JP14288087
申请日：1987-06-08
申请人： TOPPAN PRINTING CO LTD
发明人： KATO KIYOSHI , TAKEDA KENICHI , ONODERA KOJIRO , KUROSAWA TOSHIO , TAKIZAWA HIROSHI
IPC分类号： B41F3/28 , B41F3/38 , B41M1/10
摘要： PURPOSE:To improve reproducibility responsive to printing tone of an original plate by coating a gravure lithography with ink by a first doctor blade, and removing excessive ink by a driven second doctor blade. CONSTITUTION:A first doctor blade 3 is drawn on a gravure lithography 1 to coat the whole surface of the lithography 1 with ink (a), thereby filling the ink (a) in the cells of the lithography 1. Thus, the cells of the lithography 1 become the same state as that an original plate is dipped in the ink. Then, a second doctor blade 4 in contact by driving is drawn on the lithography 1 to scrape off excessive ink, and an impression cylinder 2 is then rolled to transfer the ink to a printing sheet (b). Since the ink filling state of the cells of the lithography becomes similar to that of the cells of this plate, reproducibility corresponding to the printing tone of this printer is improved.

7. 发明专利

JPS6420137A ENGRAVING METHOD BY GRAVURE CYLINDER 失效
公开(公告)号：JPS6420137A
公开(公告)日：1989-01-24
申请号：JP17674887
申请日：1987-07-15
申请人： TOPPAN PRINTING CO LTD
发明人： KATO KIYOSHI , TAKIZAWA HIROSHI , FURUSHIMA TADAO , TAKASHIMA HIDEYA
IPC分类号： B41C1/02
摘要： PURPOSE:To form a correct image, by providing an ammeter in a motor which rotates a gravure cylinder so as to measure the motor current resulting from the uneven rotation of the gravure cylinder, and a magnet in the gravure cylinder for correction of balance, thereby to reduce the uneven rotation of the gravure cylinder. CONSTITUTION:An ammeter is provided in a motor for rotating a gravure cylinder so as to measure the motor current which results from the uneven rotation of the gravure cylinder. Accordingly, the position where a magnet for correction of balance should be placed in the gravure cylinder can be detected. Then, the gravure cylinder provided with the magnet is rotated again and the motor current is measured, so that it can be made clear visually whether or not the uneven rotation is solved, and generation of an inferior image can be prevented.

8. 发明专利

JPS63230344A REGISTERING METHOD 失效
公开(公告)号：JPS63230344A
公开(公告)日：1988-09-26
申请号：JP6502587
申请日：1987-03-19
申请人： TOPPAN PRINTING CO LTD
发明人： YAMANAKA YASUO , TAKIZAWA HIROSHI
IPC分类号： B41F33/14 , B41F33/06
摘要： PURPOSE:To automate registering by forming a registering mark of a specific mode simultaneously with multicolor printing. CONSTITUTION:For example, a rectangular solid printing part 1 is formed to the side edge part of printing paper 5 simultaneously with the printing of the first color and the registering mark 2 of the second color is formed thereto simultaneously with the printing of the second color. In the same way, the registering mark 3 of the third color and the registering mark 4 of the fourth color are successively formed. A slit like unprinted part 1' is provided in the vicinity of the lower end part of the rectangular solid printing part 1 and all of the distance between the slit like unprinted part 1' and the registering mark 2 of the second color, the distance between the registering mark 2 of the second color and the registering mark 3 of the third color and the distance between the registering mark 3 of the third color and the registering mark 4 of the fourth color are adjusted so as to become the same distance. Since these registering marks are ones for detecting the slit like registering marks of other colors printed on the solid printing part in an overlapping state, the effect of the color of the printing paper is low and this method is suitable not only for visual observation but also for automatic detection.

9. 发明专利

JPS63227340A PLATE MAKING METHOD 失效
公开(公告)号：JPS63227340A
公开(公告)日：1988-09-21
申请号：JP6188687
申请日：1987-03-17
申请人： TOPPAN PRINTING CO LTD
发明人： TAKIZAWA HIROSHI , SUGAYA HIDEJI , GOTO TADAHIRO , WATANABE TERUAKI
IPC分类号： B41C1/00
摘要： PURPOSE:To make a printing plate having good printability without generating doctor stripe, by carving an image in the surface of a printing plate material by mechanical carving and subsequently applying an etching solution to the entire surface thereof to etch the same so as to obtain such a state that acute-angle parts are not present on at least the surfaces of the carved parts. CONSTITUTION:Copper plating is applied to the surface of a cylinder for gravure printing and, subsequently, an image is carved in the plated surface according to a usual method. Next, an etching solution is applied to the entire surface of the cylinder using a roller. As the etching solution, a ferric chloride solution is used and the temp. thereof is held to a range of 20-30 deg.C and etching is performed for 20-30 sec under a humidity condition of 40-60%. The finish point of etching is set to the point of time when acute-angle parts are removed from the carved parts. A state free from the acute-angle parts 2 means such a state that the diameter of the upper part of the protruding part 1 of each acute-angle part becomes 2-4mum and, when the diameter is 2mum or less, smoothness is insufficient and, when the diameter is 4mum or more, effect is exerted on an image or on the coating amount in the case of a solid plate. After etching is finished, the etching solution is immediately washed off and, subsequently, puff polishing is applied to the cylinder and chromium plating is applied to the entire surface thereof.

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