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Pre-drying and curing mechanism, screen printing machine and printing method

A screen printing machine and screen printing technology, applied in screen printing machines, printing machines, rotary printing machines, etc., can solve the problems of interfering with the orientation of magnetic pigment flakes and affecting the effect of luster and optical change, achieving high anti-counterfeiting value, Good brilliance light change effect, shorten the interval time effect

Active Publication Date: 2021-01-22
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

The shorter the interval time, the faster the curing and positioning of the optically variable material pigment flakes, and the better the luster and light change effect obtained; on the contrary, the longer the interval time, it will interfere with the orientation of the magnetic pigment flakes, and then affect the luster to be obtained. variable effect

Method used

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  • Pre-drying and curing mechanism, screen printing machine and printing method
  • Pre-drying and curing mechanism, screen printing machine and printing method
  • Pre-drying and curing mechanism, screen printing machine and printing method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment approach 1

[0037] like image 3 As shown, the present invention provides a pre-drying and curing mechanism 22, the pre-drying and curing mechanism 22 has a packaging case 221 and a plurality of UV-LED array modules 222 arranged in the packaging case 221, the plurality of The UV-LED array modules 222 are arranged side by side along the length direction of the package housing 221, each of the UV-LED array modules 222 has a plurality of UV-LED lamp beads 2221, and each of the UV-LED array modules 222 The plurality of UV-LED lamp beads 2221 are arranged in multiple rows along the width direction of the UV-LED array module 222 , and are arranged in multiple columns along the length direction of the UV-LED array module 222 .

[0038] Specifically, the encapsulation housing 221 is generally in the shape of a cuboid, and a plurality of UV-LED array modules 222 are arranged in it, and one side of the encapsulation housing 221 is sealed with quartz glass 223, and these UV-LED array modules 222 pas...

Embodiment approach 2

[0043] like figure 1 As shown, the present invention provides a screen printing machine, which includes a conveying part 1, a screen printing mechanism 2, a conveying mechanism 3 and a drying and curing mechanism 4, wherein: the conveying part 1 is used to convey a sheet substrate; The screen printing mechanism 2 is used to receive the sheet substrate and emboss ink or varnish carrier on the sheet substrate to form a substrate; the screen printing mechanism 2 has a magnetized cylinder 21, and the magnetized cylinder 21 has a magnetic field generator 211 capable of magnetizing the ink or varnish carrier; a pre-drying curing mechanism 22 capable of pre-drying and curing the substrate is provided near the magnetized cylinder 21; A plurality of conveying cylinders 31 of the substrate, the magnetized cylinder 21 is rollingly matched with the conveying cylinder 31; the drying and curing mechanism 4 has a drying cylinder 41 and a drying and curing device 42 arranged close to the dryi...

Embodiment approach 3

[0065] like Figure 1 to Figure 6 As shown, the present invention also provides a printing method, the printing method is implemented using the screen printing machine described in Embodiment 2, and the printing method includes the following steps:

[0066] Step S1: the sheet substrate is conveyed to the screen printing mechanism 2 by the conveying part 1, and after passing through the screen printing mechanism 2, ink or varnish carrier is embossed on the sheet substrate to form a printing substrate thing;

[0067] Step S2: The substrate is transported to the magnetized cylinder 21 of the screen printing mechanism 2 through the conveying mechanism 3, while the ink or varnish carrier on the substrate is magnetized and positioned, it passes through the magnetized cylinder 21 with the magnetized cylinder. 21. The pre-drying and curing mechanism 22 arranged oppositely performs pre-drying and curing on the magnetized substrate;

[0068] Step S3: After the printed matter is magnet...

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Abstract

The invention provides a pre-drying and curing mechanism, a silk-screen printing machine and a printing method. The pre-drying and curing mechanism comprises a packaging shell and a plurality of UV-LED array modules, wherein the plurality of UV LED array modules are arranged side by side in the length direction of the packaging shell, each UV-LED array module is provided with a plurality of UV-LEDlamp beads, the plurality of UV-LED lamp beads are arranged in rows in the width direction of the UV-LED array modules, and multiple columns are arranged along the length direction of the UV LED array modules. The silk-screen printing machine comprises a silk-screen printing mechanism, a conveying mechanism and the drying and curing mechanism, wherein the silk-screen printing mechanism can pressprinting ink or varnish carriers on a sheet-shaped base material to form a printed object, the screen printing mechanism is provided with a magnetizing roller and the pre-drying and curing mechanism,and the conveying mechanism can convey the printed materials. The pre-drying and curing mechanism is arranged at the position close to the magnetizing roller, so that the ink or varnish carrier on theprinted material can be immediately dried before being magnetized and leaving the magnetized area, the light-change material in the ink or varnish carrier can be cured in advance, and the printed object with a better color light-variable effect can be obtained.

Description

technical field [0001] The invention relates to the field of currency printing production, in particular to a pre-drying and curing mechanism, a screen printing machine and a printing method. Background technique [0002] Guangcai optical change technology refers to the technology that optically variable magnetic ink (Optically Variable Magnetic Ink, OVMI) undergoes screen printing and magnetic orientation process to produce dynamic optical change phenomenon. The principle is: firstly, the optically variable magnetic ink is transferred to the printed matter by screen printing, and then the optically variable material in the optically variable magnetic ink is magnetized to form a certain angle with the substrate, and the disordered The optically variable materials are arranged in an orderly manner, and finally the magnetized optically variable materials arranged in an orderly manner are cured. The curing methods mainly include hot air and UV drying. [0003] At present, the ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B41F15/08B41F23/04
CPCB41F15/08B41F23/04
Inventor 李方见潘品李马健杨帆王燕
Owner CHINA BANKNOTE SECURITY PRINTING TECH RES INST CO LTD
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