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Flexographic printing method

A flexographic printing and flexographic technology, applied in the field of low-melting point metals, can solve the problems of low printing efficiency, difficult to control the printing process, poor printing effect, etc., and achieve good printing effect

Active Publication Date: 2020-05-08
BEIJING DREAM INK TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The inventors found that conventional low-melting-point metal printing has higher requirements on the adhesion, roughness, hardness, and flatness of the substrate, and has higher requirements on the viscosity, degree of oxidation, and filler size of low-melting-point metals. Requirements, making the printing process difficult to control, poor printing effect and low printing efficiency

Method used

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Examples

Experimental program
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Effect test

Embodiment 1

[0073] Stretchable circuits printed with low-melting point metals on silicone surfaces using flexographic methods include:

[0074] (1) Fix the customized polyurethane flexo plate with functional circuit on the surface of the plate roller;

[0075] (2) Cut the silicone into 20cm*30cm and fix it on the printing platform;

[0076] (3) Add a low melting point metal with a melting point of 11°C (Ga67%In20.5%Sn12.5%) to the ink tank of the flexographic printing device;

[0077] (4) Adjust the press-in amount between the ink outlet roller and the ink tank, the ink outlet roller and the string ink roller, the ink outlet roller and the ink form roller, the version roller and the ink form roller, the version roller and the silica gel to 0.5mm, and adjust the distance between each roller. The pressure between the roller and the silica gel is 50N, the pressure between the plate roller and the silica gel is 70N, and the flexographic printing device is started to print the silica gel;

...

Embodiment 2

[0081] Printing of smart packaging graphics with low-melting point metals on the surface of kraft paper using flexographic printing methods includes:

[0082] (1) Fix the customized polyvinyl alcohol flexo plate with packaging pattern on the surface of the plate roller;

[0083] (2) After the kraft paper with a format of A4 is sprayed with a concentration of 20% polyurethane solution, it is dried in an oven at 80°C for 20 minutes and then fixed on the printing platform;

[0084](3) adding a GaIn alloy (Ga75.5%In24.5%) containing 4% nickel powder (particle size: 1.5 microns) with a melting point of 15.5°C to the ink tank of the flexographic printing device;

[0085] (4) Adjust the pressing amount between the ink outlet roller and the ink tank, the ink outlet roller and the string ink roller, the ink outlet roller and the ink form roller, the version roller and the ink form roller, the version roller and the kraft paper to 0.5mm, and adjust the distance between each roller. The...

Embodiment 3

[0089] Printing RFID tags with low-melting-point metals on the surface of cotton cloth using flexographic printing methods includes:

[0090] (1) Fix the customized silicone flexo plate with RFID label on the surface of the plate roller;

[0091] (2) Cut the cotton cloth into a sheet of 40cm*40cm, spray it with a water-based acrylate primer with a concentration of 15%, dry it in an oven at 80°C for 20 minutes, and then fix it on the printing platform;

[0092] (3) GaIn alloy (Ga75.5%In24.5%) with a melting point of 15.5°C containing 5% nickel powder (particle size of 1.5 microns) and 15% silver-clad copper powder (particle size of 20 microns) was added to In the ink tank of the flexographic printing unit;

[0093] (4) Adjust the press-in amount between the ink outlet roller and the ink tank, the ink outlet roller and the ink roller, the ink outlet roller and the ink form roller, the version roller and the ink form roller, the version roller and the cotton cloth to 1.0 mm, and...

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Abstract

The invention provides a flexographic printing method, and relates to the technical field of low-melting-point metal. The flexographic printing method comprises the following steps that S1, a flexographic plate which can be adhered to low-melting-point metal and is provided with a printing pattern is selected; S2, a plate roller of a flexographic printing device is coated with the flexographic plate; S3, a printing base material capable of adhering the low-melting-point metal is fixed to a printing structure of the flexographic printing device; S4, the low-melting-point metal is added into anink fountain of the flexographic printing device; S5, according to the property of the low-melting-point metal, parameter setting is conducted on the flexographic printing device; and S6, the printingbase material is printed. According to the technical scheme, a printing process for printing the low-melting-point metal is simple, the controllability is good, the printing effect is good, and the printing efficiency is high.

Description

technical field [0001] The invention relates to the technical field of low melting point metals, in particular to a flexographic printing method. Background technique [0002] The melting point of low-melting-point metals is lower than 300 degrees Celsius. It has the advantages of good electrical conductivity, low melting point, and good thermal conductivity. It has become an emerging functional material that has developed rapidly in recent years. At present, low-melting-point metal patterns are usually produced on substrates by means of printing. [0003] The inventors found that conventional low-melting-point metal printing has higher requirements on the adhesion, roughness, hardness, and flatness of the substrate, and has higher requirements on the viscosity, degree of oxidation, and filler size of low-melting-point metals. Requirements make the printing process more difficult to control, the printing effect is not good and the printing efficiency is low. Contents of t...

Claims

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Application Information

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IPC IPC(8): B41M1/04B41M1/28
CPCB41M1/04B41M1/28
Inventor 朱唐卢双豪梁赟
Owner BEIJING DREAM INK TECH CO LTD
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