Printing knife rest system based on intaglio printing and working method thereof

A gravure printing and working method technology, applied in gravure rotary printing machines, general parts of printing machinery, printing and other directions, can solve the problems of uneven surface polishing, affecting image and text transfer, etc., and achieve fast drying speed and good scraping effect. , Guarantee the effect of scraping effect

Active Publication Date: 2016-02-03
JIANGSU SHUNTAI PACKAGING & PRINTING SCI TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Gravure printing is one of the four major printing methods. It is a direct printing method. The ink contained in the gravure pits is directly imprinted on the printing paper. The shades of the printed picture are determined by the size of the pits and It depends on the depth. If the pit is deep, it will contain more ink, and the ink layer left on the printing paper after embossing will be thicker; The ink layer left on the final printing paper is relatively thin; the printing plate of gravure printing is composed of pits corresponding to the original graphics and the surface of the printing plate. When printing, the ink is filled into the pits. The ink on the surface of the printing plate is scraped off with a scraper, and there is a certain pressure contact between the printing plate and the printing paper, so that the ink in the...

Method used

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  • Printing knife rest system based on intaglio printing and working method thereof
  • Printing knife rest system based on intaglio printing and working method thereof

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Embodiment 1

[0028] Such as figure 1 , figure 2 As shown, a printing knife holder system based on gravure printing in this embodiment includes: embossing roller 1, gravure printing roller 2, ink 3, ink fountain 4 and printing paper 5, and also includes: knife holder 6, doctor blade 7. Support 8, slide rail 9, air nozzle 10, air pump 11, air pipe 12 and regulating valve 13; the ink fountain 4 contains ink 3, the bottom of the gravure printing roller 2 is immersed in the ink 3, and the embossing roller 1 presses the printing paper 5 is sent to the junction of the embossing roller 1 and the gravure printing roller 2; the left side of the gravure printing roller 2 is provided with a knife holder 6, and the front end of the knife holder 6 is provided with a scraper blade 7, which is pressed against the gravure printing On the roller 2; the slide rail 9 provided above the knife rest 6 is fixed by the bracket 8; the air pipe 12 passes through the knife rest 6 and connects with the slide rail 9,...

Embodiment 2

[0039] Described a kind of printing knife post system based on gravure printing, its structure is identical with the structure in embodiment 1, and its mode of operation is as follows:

[0040] (1) The gravure printing roller 2 rotates clockwise to apply the ink 3 in the ink fountain 4 to the chrome-plated surface of the gravure printing roller 2 and the cells;

[0041] (2), the scraper blade 7 pressed against the gravure printing roller 2 scrapes off the excess ink 3 on the gravure printing roller 2 except for the cells, wherein the length of the scraper blade 7 is 31 mm;

[0042] (3) The air pump 11 sends the air flow to the air nozzle 10 through the air pipe 12, wherein the regulating valve 13 can adjust the size of the air flow, and the air pipe 12 moves to the middle of the slide rail 9;

[0043] (4) After the scraper blade 7 scrapes off the ink 3 in the non-graphic position on the gravure printing roller 2, the airflow blown out by the air nozzle 10 will dry the ink 3 stor...

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Abstract

The invention discloses a printing knife rest system based on intaglio printing. The printing knife rest system comprise a knife rest, an ink scraping blade, a support, a slide rail, air taps, an air pump, an air tube and an adjusting valve. Printing ink is contained in an ink fountain, the bottom of an intaglio printing roller is immersed into the printing ink, and an impression roller conveys printing paper to the connecting position of the impression roller and the intaglio printing roller. The knife rest is arranged on the left side of the intaglio printing roller, and the ink scraping blade is arranged at the front end of the knife rest. The slide rail is arranged on the knife rest and is fixed through the support, and the air tube penetrates through the knife rest to be connected with the slide rail. The air taps are arranged on the upper portion of the air tube, and the lower portion of the air tube is connected with the air pump. The adjusting valve is arranged at the connecting position of the air tube and the air pump. According to the printing knife rest system, the printing ink in the non-image-text position of a forme is quickly blow-dried through exhausted air flow, and unnecessary stains are prevented from being formed on the printing paper, so that the purpose of improving the surface printing effect is achieved. The invention further discloses a working method of the printing knife rest system based on intaglio printing.

Description

technical field [0001] The invention relates to the technical field of gravure printing suitability improvement, in particular to a gravure printing-based printing tool holder system and a working method thereof. Background technique [0002] Gravure printing is one of the four major printing methods. It is a direct printing method. The ink contained in the gravure pits is directly imprinted on the printing paper. The shades of the printed picture are determined by the size of the pits and It depends on the depth. If the pit is deep, it will contain more ink, and the ink layer left on the printing paper after embossing will be thicker; The ink layer left on the final printing paper is relatively thin; the printing plate of gravure printing is composed of pits corresponding to the original graphics and the surface of the printing plate. When printing, the ink is filled into the pits. The ink on the surface of the printing plate is scraped off with a scraper, and there is a c...

Claims

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Application Information

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IPC IPC(8): B41F9/10B41F22/00
Inventor 黄丹阳
Owner JIANGSU SHUNTAI PACKAGING & PRINTING SCI TECH
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