CN103568470A - Preparation technology of gravure plate roller - Google Patents

Abstract

The invention discloses a preparation technology of a gravure plate roller. The preparation technology comprises the following steps: preparing a printing plate base body; carrying out copper coating processing on a printing plate roller; preparing an original image file; electronically engraving and preparing a printing plate image; chroming the printing plate roller. When the printing plate roller is prepared, the utilization rate of steel products is high, the working allowance of steel is low, the preparation cost of the roller is reduced, the prepared plate roller accords with the operating requirement, and the service life is long.

Description

A kind of preparation technology of gravure printing roller

Technical field

The invention belongs to printing plate cylinder technical field, be specifically related to a kind of preparation technology of gravure printing roller.

Background technology

Intaglio printing is a kind of of typography, its feature is that printing product China ink bed thickness is real, the advantage such as bright-colored, saturation degree is high, forme press resistance rate is high, print quality is stable, print speed printing speed is fast, be adapted at printing in metal object, it occupies an important position in packages printing and picture and text publishing area.Shortcoming is that to compare roller price high with offset printing, and ink is unfavorable for environmental protection, dry slow, process characteristic is more special etc.

From applicable cases, gravure is mainly used in the meticulous publications such as magazine, catalogue, the printing of the marketable securities such as packages printing and banknote, stamp, and be applied to the special dimensions such as ornament materials; At home, gravure is mainly used in packages printing, as cigarette-brand, wine mark, plastic printing etc., in sheet package, graining, leather substance, medicine packing, is used widely.

In recent years, gravure printing roller printing adopts alcohol-soluble printing ink and water color ink, UV ink in a large number, both met the requirement of national green environmental printing, can adapt to the mediums such as film, composite, paper again, thereby in packages printing field, kept the ever victorious situation not waning, become important a member indispensable in domestic printing industry.

The manufacture craft of gravure printing roller, from the process of its development, has kinds of processes to select, and is respectively carbon tissue photographic process, direct screening method, glue gravure conversion electron engraving, digital and electronic engraving, laser engraving post-etching, laser direct engraving etc.

Summary of the invention

The object of this invention is to provide that a kind of steel utilization ratio is high, the preparation technology of the gravure printing roller of low processing cost.

For solving the problems of the technologies described above, the technical solution adopted in the present invention is as follows:

A preparation technology for gravure printing roller, comprises the steps:

(1), forme matrix is made: according to the drawing of printing machine roller used, choose seamless steel pipe cutting, welded flange, car chamfering, grind the processing of roller Surface Machining;

(2), forme drum copper plating treatment: Bian sulfate copper-plating method, then process through the cutting of car mill combination machine or grinder polisher lapper polishing process;

(3), original image documenting: to Manuscript scanner, use professional treatment software to make processing to image, word, gradient color in conjunction with the feature of gravure printing;

(4) forme image electronic engraving is made: comprise and determine electric carving technique, layout, dress forme, examination engraving and engraving operation;

(5), forme drum chromium plating: at the hard chromium layers of copper layer plated surface last layer 5～20 μ m, and process through cleaning, degreasing, chromium plating and polishing process.

Compared with prior art, the beneficial effect that the present invention has is:

The present invention is when preparing printing plate cylinder, and steel utilization ratio is high, and steel allowance is few, has reduced the preparation cost of roller, and the roller of preparation meets instructions for use, long service life.

Accompanying drawing explanation

Below in conjunction with the drawings and specific embodiments, the present invention is further detailed explanation.

Fig. 1 is the preparation technology's of a kind of gravure printing roller of the present invention schematic diagram.

The specific embodiment

As shown in Figure 1, a kind of preparation technology of gravure printing roller, is characterized in that comprising the steps:

(1), forme matrix is made: according to the drawing of printing machine roller used, choose seamless steel pipe cutting, welded flange, car chamfering, grind the processing of roller Surface Machining;

The selection of seamless steel pipe: weight is kilogram (the large type printing machine of wide cut, monochromatic intaglio press) from 10 kilograms (in a narrow margin little type printing machines) to hundreds of, and the wall thickness of steel pipe is from 10mm to 30mm;

(2), forme drum copper plating treatment: Bian sulfate copper-plating method, then process through the cutting of car mill combination machine or grinder polisher lapper polishing process;

(3), original image documenting: to Manuscript scanner, use professional treatment software to make processing to image, word, gradient color in conjunction with the feature of gravure printing;

(4) forme image electronic engraving is made: comprise and determine electric carving technique, layout, dress forme, examination engraving and engraving operation;

First as required selected electric carving technique used of all kinds, i.e. netting twine, net angle, curve, shadow, passage, Gao Guang, pin angle, edge enhancing; And then carry out layout according to layout figure, roller girth, engraving width, the position of registering line, the position of each colored pattern and horizontal, vertical quantity are set, engraving mode is set on (spiral, stepping, without sewing up); Then fill forme and prepare engraving, before engraving roller, roller surface be cleaned, lubricated; Then enter examination engraving, according to determine artistic carving parameter, select required electric carving pin angle, the size of the site shadow of trying out to need, passage, Gao Guang, the abnormality such as after having carved, the inspection space of a whole page has or not sliding injury, have an injection;

(5), forme drum chromium plating: at the hard chromium layers of copper layer plated surface last layer 5～20 μ m, and process through cleaning, degreasing, chromium plating and polishing process.

By reference to the accompanying drawings the present invention is exemplarily described above; obviously specific implementation of the present invention is not subject to the restrictions described above; as long as the various improvement that Bian has used method design of the present invention and technical scheme to carry out; or directly apply to other occasion without improvement, all within protection scope of the present invention.

Claims (1)

1. a preparation technology for gravure printing roller, is characterized in that comprising the steps:

(1), forme matrix is made: according to the drawing of printing machine roller used, choose seamless steel pipe cutting, welded flange, car chamfering, grind the processing of roller Surface Machining;

(2), forme drum copper plating treatment: Bian sulfate copper-plating method, then process through the cutting of car mill combination machine or grinder polisher lapper polishing process;

(3), original image documenting: to Manuscript scanner, use professional treatment software to make processing to image, word, gradient color in conjunction with the feature of gravure printing;

(4) forme image electronic engraving is made: comprise and determine electric carving technique, layout, dress forme, examination engraving and engraving operation;

(5), forme drum chromium plating: at the hard chromium layers of copper layer plated surface last layer 5～20 μ m, and process through cleaning, degreasing, chromium plating and polishing process.

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