Light-colored infrared absorbing UV-LED ink-jet ink and preparation method thereof

A UV-LED, infrared absorption technology, used in inks, household appliances, applications, etc., can solve the problems of inability to better protect anti-counterfeiting characteristics, poor light fastness, and limited application fields of infrared inkjet inks

Pending Publication Date: 2017-09-01
CHINA BANKNOTE INK +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] At present, most of the infrared absorbing dyes are cyanine dyes, and their light fastness is poor. When printed on the packaging, they cannot meet the requirements of the printed matter on light fastness and physical and chemical properties, and there will be certain restrictions on the application field of infrared inkjet inks. , and cannot better protect its anti-counterfeiting features

Method used

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  • Light-colored infrared absorbing UV-LED ink-jet ink and preparation method thereof
  • Light-colored infrared absorbing UV-LED ink-jet ink and preparation method thereof
  • Light-colored infrared absorbing UV-LED ink-jet ink and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] Light color infrared absorbing UV-LED inkjet ink, its formula is as follows:

[0029]

[0030]

[0031] Preparation method: mix the various components, let stand, filter with a positive pressure filter device, the filter membrane pore size is 0.45 μm, and obtain light-color infrared absorption UV-LED inkjet ink after filtering.

[0032] Measure the physical properties of the ink, as follows:

[0033] Viscosity (25°C): 21mpa·s

[0034] Surface tension: 22mN / m

[0035] Particle size: Z-Average 122nm, PDI 0.135

[0036] This ink is used for printing with Ricoh nozzle GEN4. The printing speed is 50m / min. It has good printing fluency and no ink flying.

Embodiment 2

[0038] Light color infrared absorbing UV-LED inkjet ink, its formula is as follows:

[0039]

[0040]

[0041] Preparation method: according to the formula, mix perylene-based infrared absorbing dyes, tetrahydrofuran acrylate, dipropylene glycol acrylate, polyethylene glycol acrylate, monoacyl phosphine, α-amino ketone, surfactant, and auxiliary agents in sequence Add it into the container, stir for 30 minutes, and control the speed at 500r / min. After mixing, the system becomes uniform and transparent blue. After stirring, let it stand for 30 minutes, filter with a positive pressure filter device, the filter membrane has a pore size of 0.45 μm, and obtain a light-colored infrared-absorbing UV-LED inkjet ink after filtering.

[0042] Measure the physical properties of the ink, as follows:

[0043] Viscosity (25°C): 24mpa·s

[0044] Surface tension: 21mN / m

[0045] Particle size: Z-Average 110nm, PDI 0.120

[0046] The ink is used for printing with Ricoh nozzle GEN4, t...

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Abstract

The invention discloses light-colored infrared absorbing UV-LED ink-jet ink and a preparation method thereof. The light-colored infrared absorbing UV-LED ink-jet ink is composed of the following ingredients (by weight): 1-10% of an infrared absorbing dye, 15-35% of a prepolymer, 4-10% of an initiator, 52-70% of a reactive diluent, 0.1-2% of a surfactant and 0.1-2% of an auxiliary agent. The ink-jet ink can be used in industrial production. For one pass ink-jet printing, printing speed is 80 m/min-100 m/min. Smooth printing is guaranteed. The ink-jet ink has characteristics of no misting, rapid solidification, low energy, good light resistance and the like.

Description

technical field [0001] The invention relates to an anti-counterfeiting UV-LED ink for inkjet printing. Background technique [0002] Light-colored infrared inkjet ink is to dissolve or disperse infrared absorbing material in the inkjet ink system, so that it has the characteristics of infrared absorption. With the rapid development of anti-counterfeiting technology and inkjet technology, ordinary anti-counterfeiting inks, such as fluorescent inks, can no longer meet the actual needs, and the research and development of infrared absorbing inkjet inks can fill this gap. Labels, barcodes, dot codes, etc. printed with infrared inkjet ink can be read and tracked by special reading equipment, but cannot be recognized by naked eyes, and play a certain role in anti-counterfeiting and anti-sabotage. [0003] At present, most of the infrared absorbing dyes are cyanine dyes, and their light fastness is poor. When printed on the packaging, they cannot meet the requirements of the print...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D11/03C09D11/328C09D11/102C09D11/101
CPCC09D11/03C09D11/101C09D11/102C09D11/328
Inventor 陈夏萌孟庆飞马永胜袁国林黄维维
Owner CHINA BANKNOTE INK
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