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LED (light-emitting diode) light-curable ink

A technology of light-curing ink and photo-initiator, applied in the field of ink, can solve the problems such as the decrease of curing efficiency of LED light-curing ink, and achieve the effects of improving light-curing efficiency, weakening the influence of oxygen inhibition and low production cost.

Active Publication Date: 2021-09-24
惠州巨润科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Based on this, it is necessary to provide a LED light-curable ink for the technical problem that the curing efficiency of the existing LED light-curable ink is significantly reduced at 395 nanometers.

Method used

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  • LED (light-emitting diode) light-curable ink
  • LED (light-emitting diode) light-curable ink

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] In this embodiment, the LED photocurable ink includes components: 50 parts of prepolymer, 10 parts of monomer, 2.2 parts of auxiliary agent, 5.5 parts of photoinitiator and 16 parts of pigment.

[0031] Among them, 50 parts of prepolymers include 45 parts of modified soybean oil-based rosin polyester and 5 parts of hexafunctional urethane acrylic acid; modified soybean oil-based rosin polyester is obtained by introducing rosin with honeycomb structure and adding epoxy large Soybean oil has the ability to wet and disperse organic pigments, so that the gloss and transfer performance of the ink are significantly improved, and the soybean oil-based rosin polyester has a large molecular weight, a high softening point, and a tighter resin structure, which in turn makes the ink water-resistant. Significantly improved anti-fogging, abrasion and solvent resistance.

[0032] During photocuring, the initiator causes the carbon-carbon double bond of the urethane acrylate to react w...

Embodiment 2

[0040] In this embodiment, the LED photocurable ink includes components: 60 parts of prepolymer, 5 parts of monomer, 3 parts of auxiliary agent, 5 parts of photoinitiator and 21 parts of pigment.

[0041] Wherein, the prepolymer includes 50 parts of rosin polyester and 10 parts of hexafunctional urethane acrylic acid.

[0042] In this embodiment, the monomer is 5 parts of ditrimethylolpropane acrylate.

[0043] In this embodiment, the additives include 1 part of fatty acid modifier, 0.1 part of N-nitroso-N-phenylhydroxylamine aluminum, 1 part of nano-calcium carbonate and 0.9 part of silicone oil.

[0044] In this embodiment, the photoinitiator includes 1.5 parts of 369, 1.5 parts of DETX and 2 parts of tetraethyl Michler's ketone.

Embodiment 3

[0046] In this embodiment, the LED photocurable ink includes components: 70 parts of prepolymer, 10 parts of monomer, 3 parts of auxiliary agent, 6.5 parts of photoinitiator and 22 parts of pigment.

[0047] In this embodiment, the prepolymer includes 55 parts of rosin polyester and 15 parts of hexafunctional urethane acrylic.

[0048] In this embodiment, the monomer is 10 parts of ditrimethylolpropane acrylate.

[0049] In this embodiment, the additives include 1 part of fatty acid modifier, 0.5 part of N-nitroso-N-phenylhydroxylamine aluminum, 1 part of nano-calcium carbonate and 0.5 part of silicone oil.

[0050] In this embodiment, the photoinitiator includes 2 parts of 369, 2 parts of DETX and 2.5 parts of tetraethyl Michler's ketone.

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Abstract

The invention discloses LED (light-emitting diode) light-curable ink, which is prepared from the following components in parts by mass: 50-70 parts of a prepolymer, 1-10 parts of a monomer, 1-3 parts of an auxiliary agent, 5-10 parts of a photoinitiator and 16-24 parts of pigment. The 50-70 parts of the prepolymer is prepared from 45-55 parts of rosin polyester and 5-15 parts of six-functional-group polyurethane acrylic acid. The 1-10 parts of the monomer comprises 1-10 parts of bis (trimethylolpropane) acrylate. The 1-3 parts of the auxiliary agent comprises 0.5-1 part of a fatty acid modifier, 0.1-0.5 parts of N-nitroso-N-phenylhydroxylamine aluminum, 0.3-0.5 parts of nano calcium carbonate and 0.1-1 part of organic silicone oil. The 5-10 parts of the photoinitiator is prepared from 1.5-3 parts of 369, 1.5-3 parts of DETX and 2-4 parts of tetraethyl Michler's ketone. According to the LED light-curable ink, tetraethyl Michler's ketone is introduced into the composite photoinitiator, so that the light curing efficiency of a light curing system in the LED light-curable ink in a 395-nanometer wave band is greatly improved; and due to the fact that the light curing efficiency is improved under an LED light source, the drying speed of the surface of the ink is also effectively improved.

Description

technical field [0001] The invention relates to the technical field of ink, in particular to an LED photocurable ink. Background technique [0002] Photocuring reaction has been widely used in commercial fields such as coatings, inks, and adhesives due to its advantages of high efficiency and fast curing, no volatile organic compounds, and precise control. However, the mercury lamps used in traditional light curing have high energy consumption, short service life and are prone to ozone damage to the environment, which is not in line with the environmental protection concept advocated today. Therefore, people turn their attention to LED curing light sources that are more efficient, energy-saving and environmentally friendly. . [0003] The current UV~LED light curing technology has a wavelength below 400 nanometers, and commonly used wavelengths are 365, 385 and 395 nanometers. According to the light-emitting principle of ultraviolet LED, when the LED lamp is working, the e...

Claims

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Application Information

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IPC IPC(8): C09D11/101C09D11/104C09D11/102
CPCC09D11/101C09D11/104C09D11/102
Inventor 李强光姚加圣滕志淼
Owner 惠州巨润科技有限公司
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