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High-tensile UV ink and printing method thereof

A technology of ink and photoinitiator, applied in the direction of ink, printing, printing device, etc., can solve the problems of inability to apply IMF products, UV ink can not meet the stretching requirements, poor adhesion, etc., to achieve excellent shielding and plastic materials. The effect of printing ink adhesion, high tensile resistance and excellent adhesion

Pending Publication Date: 2022-02-22
CYMMETRIK SHENZHEN PRINTING
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a high-stretch UV ink and its printing method, which solves the problem that in the prior art, the UV ink cannot meet the stretching requirements and the adhesion is not good so that it cannot be applied to IMF products.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0018] Nitrogen-vinyl-2-pyrrolidone 2kg, polyurethane resin 2kg, titanium dioxide 3kg, NVP monomer 2.3kg, 1173 photoinitiator 0.2kg, TPO photoinitiator 0.4kg, leveling agent polydimethylsiloxane Put 0.05kg of oxane and 0.05kg of antifoaming agent polydimethylsiloxane in a container, stir well, wait for 20 minutes after mixing and dispersing evenly, and print the prepared UV ink on the plastic film material with a 300-mesh screen surface, and place it on the conveyor belt of the UV curing machine at a conveying speed of 3m / min to make a printed sample. Put the printed sample into the hot press molding machine, hot press it into a 3D shape sample, stretch about 3mm, the hot pressing temperature is 270°C, and the hot pressing time is 10s. 3D shape sample effect: Visually, the ink layer has no breaks and no dark marks.

Embodiment 2

[0020] Nitrogen-vinyl-2-pyrrolidone 1kg, polyurethane resin 2kg, titanium dioxide 2kg, NVP monomer 1kg, 1173 photoinitiator 0.3kg, TPO photoinitiator 0.3kg, leveling agent polydimethylsiloxane Put 0.01kg of alkane and 0.01kg of antifoaming agent polydimethylsiloxane in a container, stir well, wait for 20 minutes after mixing and dispersing evenly, and print the prepared UV ink on the surface of the plastic film material with a 300-mesh screen , and place it on the conveyor belt of the UV curing machine at a transmission speed of 2.5m / min to make a printed sample. Put the printed sample into the hot press molding machine, hot press it into a 3D shape sample, stretch about 3mm, the hot pressing temperature is 250°C, and the hot pressing time is 15s. 3D shape sample effect: Visually, the ink layer has no breaks and no dark marks.

Embodiment 3

[0022] Nitrogen-vinyl-2-pyrrolidone 4kg, polyurethane resin 5kg, titanium dioxide 4kg, NVP monomer 3kg, 1173 photoinitiator 0.3kg, TPO photoinitiator 0.6kg, leveling agent polydimethylsiloxane Put 0.3kg of alkane and 0.3kg of defoamer polyoxyethylene polyoxypropylene pentaerythritol ether in a container, stir well, wait for 20 minutes after mixing and dispersing evenly, and print the prepared UV ink on the plastic film material with a 300-mesh screen surface, and place it on the conveyor belt of the UV curing machine at a transmission speed of 3.5m / min to make a printed sample. Put the printed sample into the hot press molding machine, hot press it into a 3D shape sample, stretch about 3mm, the hot pressing temperature is 300°C, and the hot pressing time is 8s. 3D shape sample effect: Visually, the ink layer has no breaks and no dark marks.

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PUM

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Abstract

The invention relates to high-tensile UV ink and a printing method thereof. The high-tensile UV ink is prepared from the following components in parts by mass: 20 to 50 parts of polyaminoacrylate resin, 20 to 40 parts of titanium dioxide, 10 to 40 parts of a pyrrolidone compound, 1 to 10 parts of a photoinitiator and 10 to 30 parts of a monomer. The high-tensile UV ink disclosed by the invention is excellent in adhesive force on the surface of a material, has high tensile resistance, is free of fracture marks and cracking phenomena after being stretched by 3 mm, and has excellent shielding property and plastic material printing inking property.

Description

technical field [0001] The invention relates to the technical field of inks, more specifically, to a high-stretch UV ink and a printing method thereof. Background technique [0002] In the current printing industry, IMF is collectively referred to as IMD (In-Mold Decoration Technology), and its processes include film printing, printing adhesives, molding, trimming, in-mold injection molding, film ink and plastic parts bonding. IMF products are used in mobile phone / tablet protective covers, game consoles / mobile phone battery back covers, etc. [0003] IMF products have been printed with solvent-based inks in screen printing, because the stretch resistance of screen UV-type ink printing cannot meet the requirements for injection molding stretching (ink printing stretches 1-3mm), and screen-printed UV-type inks Inks are difficult to adhere to after digital printing. At present, solvent-based inks are not environmentally friendly, have a strong smell and are harmful to the hum...

Claims

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Application Information

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IPC IPC(8): C09D11/101C09D11/102C09D11/03B41M1/12
CPCC09D11/101C09D11/102C09D11/03B41M1/12
Inventor 项云张达伟周天丁杨青澐
Owner CYMMETRIK SHENZHEN PRINTING
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