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A kind of inkless screen printing method and its application

A technology of screen printing and ink, applied in the direction of printing, printing of special varieties of printed matter, printing process, etc., can solve the problems of ink pollution, etc., and achieve the effect of high concealment, low cost, and simple transfer process

Active Publication Date: 2018-12-21
CHONGQING UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The invention aims at the problem of ink pollution in the existing screen printing method, and provides an ink-free screen printing method, and the invention also provides the application of the method in anti-counterfeiting identification

Method used

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  • A kind of inkless screen printing method and its application
  • A kind of inkless screen printing method and its application
  • A kind of inkless screen printing method and its application

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] The printing steps of this embodiment are as follows:

[0028] Weigh 0.1g of polyvinyl alcohol (PVA) into a round bottom flask, add 10ml of deionized water, raise the temperature to 95°C with stirring and keep it for 1.5h to obtain a 10g / L PVA aqueous solution, and then add 10mg of potential phosphor six -(3-carboxy-phenoxy)-cyclotrimeric phosphazene is doped into the PVA solution, and after mixing uniformly, it is prepared to obtain a mixed solution with a mass fraction of 9.1% (the said mass fraction in the present invention is six-(3 -carboxy-phenoxy)-cyclotrimeric phosphazene as a percentage of the sum of hexa-(3-carboxy-phenoxy)-cyclotrimeric phosphazene and polyvinyl alcohol) on glass by drop coating Form a film and bake it at 60°C for 3 hours to obtain a uniform film material, then transfer the screen printing plate to the prepared film, and irradiate the pattern with a UV lamp with a wavelength of 254nm for 25 minutes to complete the printing process.

Embodiment 2

[0030] The printing steps of this embodiment are as follows:

[0031] Weigh 0.1g of polyvinyl alcohol (PVA) in a round bottom flask, add 10ml of deionized water, raise the temperature to 90°C with stirring and keep it for 2h to obtain a 10g / L PVA aqueous solution, and then add 30mg of potential phosphor hexa- (4-Carboxyl-phenoxy)-cyclotrimeric phosphazene was doped into the PVA solution, and after mixing evenly, a mixed solution with a mass fraction of 23.1% was prepared, and a film was formed on the glass by the drop coating method, and was heated at 100°C Bake for 1.5 hours to obtain a uniform film material, then transfer the screen printing plate to the prepared film, and irradiate the pattern with a UV lamp with a wavelength of 254nm for 100 minutes to complete the printing process.

Embodiment 3

[0033] The printing steps of this embodiment are as follows:

[0034] Weigh 0.1g of polyvinyl alcohol (PVA) in a round bottom flask, add 10ml of deionized water, raise the temperature to 85°C under stirring and keep it for 4h to obtain a 10g / L PVA aqueous solution, and then add 50mg of potential phosphor six- (2-Carbomethoxy-phenoxy)-cyclotrimeric phosphazene was doped into the PVA solution, and after mixing evenly, a mixed solution with a mass fraction of 33.3% was prepared, and a film was formed on the glass by spin coating, and the Bake at 80°C for 2 hours to obtain a uniform film material, then transfer the screen printing plate to the prepared film, and irradiate the pattern with an ultraviolet lamp with a wavelength of 280nm for 60 minutes to complete the printing process.

[0035] figure 1 with Figure 4 Be respectively the room temperature phosphorescence spectrum of the printed pattern of embodiment 1 and embodiment 2, by figure 1 with Figure 4 It can be seen tha...

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Abstract

The invention discloses a no-ink silk screen printing method and an application thereof. The method comprises the steps that firstly polyvinyl alcohol (PVA) is dissolved with deionized water, then potential phosphor cyclotriphosphazene derivatives are mixed with a PVA solution, through a spin coating mode or a dripping coating mode, base materials such as paper, glass and plastic are coated with the solution, after drying and film forming are conducted, a silk screen printing plate covers the base materials, through ultraviolet irradiation, patterns are printed on the base materials, and accordingly the printing process is completed. Compared with the traditional silk screen printing technology, according to the no-ink silk screen printing method, any harmful ink is not needed in the transfer printing process, the method has no damage on construction personnel or surrounding environment, and the transfer printing process is easy and low in cost; the transfer printed patterns are invisible under sunlight and can only appear under the irradiation of an ultraviolet lamp in 200-400 nanometers, after an ultraviolet lamp is turned off, within 1-10 seconds, the transfer printed patterns are still visible, the method has high-degree hidden performance, and anti-fake of higher level can be achieved.

Description

technical field [0001] The invention belongs to the field of printing, in particular to an ink-free screen printing method and its application. Background technique [0002] Screen printing technology has the advantages of fast printing speed, cheap price, bright colors, and long shelf life. It is recognized by more and more industries and is widely used. Especially the text on the panels of household appliances (refrigerators, TV sets, washing machines, etc.), patterns on textiles (T-shirts, cultural shirts, shoes), decorations on ceramics, glass, wall and floor tiles, various commercial advertising platforms, high-end Packaging boxes, packaging bottles, cigarette packs, wine packs and other fields, the market is extremely broad! However, the traditional screen printing technology is inseparable from harmful inks, and volatile organic solvents often bring great harm to construction personnel and the surrounding environment. Therefore, it is very important and necessary to...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B41M3/14B41M1/12B41M7/00C09D129/04C09D7/65
CPCB41M1/12B41M3/142B41M7/0081C08K5/5399C09D129/04
Inventor 杨朝龙苏艳李又兵
Owner CHONGQING UNIV OF TECH
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