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Varnish group printing device for optically variable anti-counterfeiting ink offset printing and offset printing on-line printing method

A technology of optically variable anti-counterfeiting and printing devices, which is applied to printing machines, general parts of printing machinery, printing, etc., can solve the problems of anti-counterfeiting ink darkening and blackening, and achieve the effects of reducing damage, small friction coefficient, and increasing contact area Effect

Active Publication Date: 2019-04-30
湖南楠海科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The local glazing device solves the problems of darkening and blackening of light-varying anti-counterfeiting ink offset printing in the prior art

Method used

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  • Varnish group printing device for optically variable anti-counterfeiting ink offset printing and offset printing on-line printing method
  • Varnish group printing device for optically variable anti-counterfeiting ink offset printing and offset printing on-line printing method
  • Varnish group printing device for optically variable anti-counterfeiting ink offset printing and offset printing on-line printing method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0062] refer to Figure 1~7 , a kind of varnish group printing device for optically variable anti-counterfeiting ink offset printing of the present embodiment, comprising a conveying device 6, a scraper 5, an anilox roller 4, a plate roller 3 and an impression cylinder 1 sleeved with a resin plate 2; the conveying The device 6 is installed under the impression cylinder 1, and transfers the substrate 7 to the impression cylinder 1; the scraper 5 and the version roller 3 are installed on both sides of the anilox roller 4, and the version roller 3 is installed on the impression cylinder 1, the scraper 5 transfers the optically variable anti-counterfeiting ink to the resin plate 2 covered by the plate roller 3 through the anilox roller 4, and then under the action of the impression cylinder 1, the optically variable anti-counterfeiting ink on the resin plate 2 is transferred Print onto substrate 7.

[0063] The resin plate 2 includes a metal-based substrate 21, an adhesive layer ...

Embodiment 2

[0079] refer to Figure 8 and 9 , compared with embodiment 1, a kind of optically variable anti-counterfeiting ink offset printing varnish group printing device of the present embodiment has the following differences:

[0080] The height of the balance bar 24 protruding from the outer surface of the resin layer 23 is 0.4 mm.

[0081] 15mm。 The metal-based substrate 21 is an alloy metal-based thickness of 0. 15mm.

[0082] The hardness of the resin layer 23 is 75 degrees Shore hardness.

[0083] A mounting frame 515 is also provided on the back of the knife holder 51 .

[0084] The end of the barrier sheet 53 close to the blade 52 is provided with an ink absorbing device 514, which can effectively absorb the ink accumulated on the blade 52 into the ink storage chamber, thereby improving the ink scraping effect of the blade 52.

[0085] The ink absorbing device 514 is a sponge.

[0086] The ink inlet and outlet device comprises an ink feed pipe 510, an ink discharge pipe 51...

Embodiment 3

[0091] refer to Figure 10 , an optically variable anti-counterfeiting ink offset online printing device of the present invention, comprising: a paper feeding device 10, a conveying device 6, 6 color printing units 8 connected in series in sequence, and a varnish group printing device as described in Embodiment 1 and collecting device 8; the transfer device 6 sequentially transfers the substrate 7 from the paper feeding device 10 to the color printing unit 8 for color printing, and then transfers the color printed substrate 7 to the varnish group printing device for varnish printing Change the anti-counterfeiting ink to print, and finally transfer the substrate 7 to the collecting device 8.

[0092] The color printing unit 8 can be a common color printing unit 8 in the market, such as the 6-color printing unit of Heidelberg.

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Abstract

The invention discloses a gloss oil set printing device for optical variable anti-faking ink offset printing. The device comprises a conveying device, a scraper, an anilox roller, a plate roller sleeved with a resin plate, and an impression cylinder; the conveying device is mounted below the impression cylinder for conveying a printed mater onto the impression cylinder; the scraper and the plate roller are mounted on two sides of the anilox roller; the plate roller is mounted above the impression cylinder; the scraper prints optical variable anti-faking ink to the resin plate sleeved on the plate roller through the anilox roller; and under the effect of the impression cylinder, the optical variable anti-faking ink on the resin plate is printed on the printed matter. The invention further discloses an optical variable anti-faking ink offset printing online printing device with the gloss oil set printing device and an optical variable anti-faking ink offset printing online printing method. The printing process and the printing equipment of optical variable anti-faking ink offset printing are simplified; the printing efficiency is improved; the equipment investment and the labor intensity of optical variable anti-faking ink offset printing are reduced; and such technical difficulties as easy color change, blackening and darkening of optical variable anti-faking ink in optical variable anti-faking ink offset printing in the prior art are solved.

Description

technical field [0001] The present invention relates to an optical variable anti-counterfeiting ink printing device and method, in particular to a varnish group printing device and method for optical variable anti-counterfeiting ink offset printing. Background technique [0002] According to the classification of printing plates, traditional printing can be divided into four printing methods: emboss printing, gravure printing, silk screen printing and offset printing. The current optical variable anti-counterfeiting ink printing generally adopts two printing methods: silk screen printing and gravure printing. If the offset printing product needs anti-counterfeiting Printing must be done through the combination of offset printing and then gravure printing or silk screen printing anti-counterfeiting ink, which requires two processes and two printing equipment to complete, resulting in a huge investment in manpower and equipment, which limits the improvement of production effici...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B41F23/08B41M7/02
CPCB41F23/08B41M7/02
Inventor 李敏单健杰
Owner 湖南楠海科技有限公司
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