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Method and device for double-sided opposite printing for engraved intaglio plate

A technology of engraving gravure and printing methods, which is applied to gravure rotary printing machines, printing, printing of special varieties of printed matter, etc. It can solve the problems of short pressure release rebound time, high frequency of pressure, and poor product quality, etc., to achieve Long reset time, the effect of improving printing quality

Active Publication Date: 2012-12-12
CHINA BANKNOTE SECURITY PRINTING TECH RES INST CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, since this technical solution must feed paper at intervals, the number of paper feeds is reduced by 50% under the condition of constant equipment operating speed; The ratio is an even-odd ratio, so each printing plate has a higher frequency of pressure, a shorter springback time for pressure release, and a poor constant printing pressure effect at high printing speeds, resulting in poor product quality. , it will be difficult to print deep concave patterns at high printing speeds

Method used

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  • Method and device for double-sided opposite printing for engraved intaglio plate
  • Method and device for double-sided opposite printing for engraved intaglio plate

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Experimental program
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Effect test

Embodiment approach 1

[0028] figure 1 It is a schematic diagram of the printing principle of the present invention. As shown in the figure, the engraved gravure double-face printing device of the present invention includes: a substrate control part, which has a substrate input part 1 and an output part 5 respectively arranged at the front and rear ends of the transfer / impression cylinder 2, and In this embodiment, the substrate is paper 10, and the paper 10 is transported to the transfer / impression cylinder 2 by the paper feed cylinder 11 of the substrate input part 1, and passes through the paper output cylinder of the substrate output part 5 after printing is completed. 51 were collected. Two printing plate cylinders 3, 4 (the first and second printing plate cylinders 3, 4), each printing plate cylinder 3, 4 is equipped with an even number of printing plates with equal numbers respectively, and the front and back of the substrate The two-sided printing plates are arranged on two plate cylinders...

Embodiment approach 2

[0041] figure 2 It is a schematic diagram of the printing principle of another embodiment of the present invention, wherein the same components as in the embodiment use the same symbols. As shown in the figure, three first printing plates A can be set on the first printing plate cylinder 3' 1 、A 2 、A 3 , three second printing plates B are also set on the second printing plate cylinder 4' 1 , B 2 , B 3 , In this embodiment, the front printing plate is set on the first printing plate cylinder 3', and the back printing plate is set on the second printing plate cylinder 4' as an example for description. The transfer / imprint cylinder 2' is equipped with an even-numbered transfer / imprint cushion layer twice as many as the number of printing plates provided on the first and second plate cylinders 3', 4', namely Set with six transfer / imprint pads C 1 、C 2 、C 3 、C 4 、C 5 、C 6 The diameter ratio of the first and second plate cylinders 3', 4' to the transfer / impression cylin...

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Abstract

The invention discloses a method and device for double-sided opposite printing for an engraved intaglio plate, which comprises the steps of: respectively assembling printing plates (more than one) same in quantity on two plate cylinders, wherein the first plate cylinder is provided with a first printing plate and the second plate cylinder is provided with a second printing plate; arranging transfer-printing / impressing cushion layers on a transfer-printing / impressing cylinder, wherein the transfer-printing / impressing cushion layers are in even-number quantity and are one time more than the printing plates on the first or second plate cylinder; and continuously conveying printing stocks to a place between the transfer-printing / impressing cylinder and one of the plate cylinder. Because the first plate roller and the transfer-printing / impressing cylinder are continuously and oppositely pressed in a rotating process, each transfer-printing / impressing plate of the transfer-printing / impressing cylinder is always provided with transferred plate patterns when the transfer-printing / impressing cylinder and the second plate cylinder are oppositely pressed, patterns on the front side and the back side can be simultaneously transferred to the front side and the back side of the printing stocks through once printing, and thus, continuous and ceaseless double-sided printing is realized; and compared with the production efficiency of the printing of the engraved intaglio plate of like type, the production efficiency of the double-sided opposite printing is improved by 100%.

Description

technical field [0001] The present invention relates to an engraving gravure printing equipment and method, in particular to a double-sided engraving intaglio that can realize continuous simultaneous printing on the front and back sides of a substrate through one printing press, so that at least one side has a concave-convex feel. Printing methods and equipment. Background technique [0002] Double-sided printing is an effective anti-counterfeiting printing technology. Because the double-sided printing effect is difficult to counterfeit and easy to identify by the public, it is widely used in banknotes, valuable tickets and other printed materials with high anti-counterfeiting functions, especially Engraving gravure printing is widely used in the printing of banknotes due to its three-dimensional pattern and complex process, which is difficult to imitate. But the double-sided printing process is more difficult. [0003] The known engraving gravure printing technology is to...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B41M1/10B41M3/00B41F9/00
Inventor 李根绪马仁选蒋治全
Owner CHINA BANKNOTE SECURITY PRINTING TECH RES INST CO LTD
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