JPH08112977A - Intaglio printing plate and intaglio printed matter - Google Patents

Abstract

PURPOSE: To provide an intaglio printing plate in which a doctor stripe defect caused from the position of a print relative mark at the time of doctoring and affected to a printing pattern can be prevented and a printed matter using the same. CONSTITUTION: An intaglio printing plate 1 prints a printed matter to be printed with ink of an intaglio pattern by supplying the ink to an image or character corresponding intaglio pattern of the plate 1 and removing excess ink by a doctor, and has a print relative management mark 8 provided except the extension line of the image or the character corresponding intaglio pattern in the doctoring direction of the plate. An intaglio printed matter comprises a print relative management mark 8 except the extension line of the image or character corresponding intaglio pattern in the doctoring direction printed by using the plate 1.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an intaglio printing plate and an intaglio printed matter printed using the intaglio printing plate.

[0002]

2. Description of the Related Art Conventionally, intaglio printing is a method of supplying a highly fluid resin ink onto an intaglio made of metal, glass, or resin, and scraping off the excess ink supplied to the intaglio printing plate with a doctor, and simultaneously printing pixels. This is a printing method in which ink is filled in a recessed pattern portion corresponding to a portion, and this is transferred to a printing medium such as paper or plastic directly or via a rubber blanket to obtain a large number of duplicates.

Generally, when a printing plate is manufactured, alignment marks (register marks) defined as printing-related management marks, gradation scales, color plate identification marks, cutting marks and the like are arranged around the image. The alignment mark is a cross-shaped mark that is commonly called a dragonfly at the printing site, and is located at a position common to each color plate such as yellow, red, indigo, and black in four-color printing (normally, if the pattern is rectangular, There are many side centers).

In addition, a rectangular or trapezoidal mark is put in each color plate in parallel to the axial direction of the printing plate like an automatic alignment device, and each mark is detected to shift the position of the printing object in the traveling direction or to the platen. In the case of a shape, when the trapezoid shifts to the left and right, the width of the mark of the detection unit differs, so there is a type that detects the shift in the axial direction of the printing material. These were cut in the image in the circumferential direction because of the margin widths on both sides of the printed material.

However, in the above method, the angle formed by the plate and the doctor is temporarily smaller than 60 to 70 degrees at the position of the printing-related mark at the time of the doctor ring, and the doctor blade has scratches or chips. There was a problem that a defect on the doctor streak occurs in the doctor ring direction due to the breakage.

[0006]

SUMMARY OF THE INVENTION The present invention is intended to solve the above-mentioned problems of the prior art. The object of the present invention is to generate a print-related mark at the position of a print-related mark at the time of doctoring. An object of the present invention is to provide an intaglio printing plate capable of preventing even a doctor streak defect and a printed matter using the same.

[0007]

SUMMARY OF THE INVENTION In order to solve the above-mentioned problems, the present invention supplies ink to an image of an intaglio printing plate, a pattern corresponding to characters, and removes excess ink with a doctor to remove the ink of the recessed pattern. In an intaglio printing plate to be printed on a material to be printed, the intaglio printing plate is provided with a printing-related management mark in the doctoring direction of the intaglio printing plate and on a line other than the extension line of the pattern corresponding to the image and character. Further, in the intaglio printing product in which the ink of the intaglio printing plate is printed with the ink of the indentation pattern by supplying the ink to the indentation pattern corresponding to the characters and removing the excess ink with a doctor, the intaglio printing product is in the doctoring direction and the image , It is an intaglio printed matter having a printing-related control mark on the extension line of the concave pattern corresponding to characters.

[0008]

According to the present invention, in the intaglio printing plate, the printing-related management marks are provided in the doctor direction and other than on the image extension line, so that the doctor-striking lines easily occur from the printing-related management marks. Even if it does not reach the image area, doctor's muscle defect can be prevented. Further, in the intaglio printed matter of the present invention, since there is no print-related management mark on the image running extension of the substrate to be printed, doctor streaks are difficult to appear in the image portion, and it is possible to obtain a good quality intaglio printed matter with few doctor streak defects. .

[0009]

An embodiment of the present invention will be described in detail below with reference to the drawings. FIG. 1 is a partial schematic explanatory view of a printing section of a sheet-fed intaglio printing press. The colored ink 3 is placed in the ink fountain 12, the colored ink is supplied to the intaglio printing plate 1 through the inking roller 5, and the excess colored ink 3 is scraped off by the doctor 4 and set on the impression cylinder 6. The image on the intaglio printing plate 1 and the image 9 having the character-corresponding dent pattern 2 are transferred to 7. In this case, an alignment mark 8 called a register mark was used as the print-related management mark. Doctor muscle 1
0 easily occurs at the position of the alignment mark 8. In this embodiment, the intaglio printing plate 1 was directly transferred to the printing substrate 7,
A blanket cylinder may be provided instead of the impression cylinder 6, and the blanket cylinder may be transferred to the printing material. The above operation is performed for each color such as yellow, red, indigo, and black to obtain a color print. Although the intaglio printing plate has been described as a cylinder-shaped one, a flat plate-shaped intaglio plate is effective because it hardly causes doctor streaks. The printing colors are from four colors (or more) such as magazines to red, green, blue, such as color filters.
(Ink) is not particularly limited.

FIG. 2 is a development explanatory view of an intaglio printing plate.
The doctoring direction is the left-right direction (circumferential direction). An image 9 exists as a concave portion on the intaglio printing plate 1, and an alignment mark 8 as a print-related management mark is arranged so as to avoid the image extension line in the doctoring direction (left and right). As a result, even if doctor stripes are generated from the alignment mark 8 to the left and right in the doctoring direction, they do not affect the image, and the occurrence of doctor stripe defects is extremely reduced.

[0011]

EFFECTS OF THE INVENTION By using the intaglio printing plate of the present invention, even if a doctor streak is generated from the printing-related management mark, the doctor streak does not extend to the image, and the doctor streak defect is less likely to occur, thus reducing printing defects. To do. The intaglio printed matter printed using the intaglio printing plate of the present invention is a sharp, stain-free and improved quality printed matter having no doctor stripes.

[0012]

[Brief description of drawings]

FIG. 1 is a partial schematic explanatory view of a printing unit of a sheet-fed intaglio printing press showing an embodiment of the present invention.

FIG. 2 is a development explanatory view of an intaglio printing plate of the present invention.

[Explanation of symbols]

1… Intaglio printing plate 2… Image, character equivalent dent pattern 3
… Coloring ink 4… Doctor 5… Ink roller 6…
Impression cylinder 7 ... Printed material 8 ... Alignment mark 9 ... Image area 10 ... Doctor streak defect

Claims (2)

[Claims] 1. An intaglio printing plate in which ink is supplied to an image of the intaglio printing plate and a pattern corresponding to characters and excess ink is removed by a doctor to print the ink of the indentation pattern on a substrate to be printed. An intaglio printing plate, characterized in that a printing-related management mark is provided in the ring direction and on a line other than the extension line of the concave pattern corresponding to the image and characters. 2. An intaglio printed matter in which an image of an intaglio printing plate, ink corresponding to characters, is supplied with ink and excess ink is removed by a doctor to print the ink of the intaglio pattern,
The intaglio printed matter is in the doctoring direction, and the image,
An intaglio printed material, which has a printing-related management mark on a line other than the extension line of the pattern corresponding to characters.