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LED UV-cured black ink, preparation method and application thereof

A technology of black ink and photocurable resin, which is applied in the field of ink, can solve the problems of affecting the health of employees, large VOC emissions, and low production efficiency, and achieve the effects of low power consumption, reduced VOC emissions, and improved utilization

Active Publication Date: 2021-01-08
HUNAN SOKAN NEW MATERIAL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The invention provides a LED UV-cured black ink and its preparation method and application to solve the problem of large VOC emissions of traditional heat-cured shading inks, polluting the environment, affecting the health of employees, low production efficiency and high carbon black content caused by conventional UV curing. The technical problem that the bottom layer of the black ink cannot be cured

Method used

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  • LED UV-cured black ink, preparation method and application thereof
  • LED UV-cured black ink, preparation method and application thereof
  • LED UV-cured black ink, preparation method and application thereof

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preparation example Construction

[0031] According to another aspect of the present invention, also provide a kind of preparation method of the black ink of LED UV curing, comprise the following steps:

[0032] While stirring, add self-extinction photocurable resin, acrylic modified rosin resin, UV monofunctional monomer, UV multifunctional monomer and mix evenly, add photoinitiator and stir until completely dissolved, then add inorganic black pigment and carbon black and stir Homogenize, disperse, obtain a mixture;

[0033] Grind the mixture to a fineness of ≤5 μm, add light guide powder, photochromic pigment, leveling agent and defoamer to the mixture in turn while stirring, mix evenly, and disperse to obtain LED UV-curable black ink.

[0034] The preparation method of LED UV-cured black ink of the present invention creatively adopts LED UV curing technology, combined with photochromic and light-guiding technology, and grinds the mixture to a fineness of ≤5 μm, so that the particle size of each component is ...

Embodiment 1

[0041] The addition amount of each component of LED UV-cured black ink is shown in Table 1:

[0042] Table 1 Addition amount of each component of black ink cured by LED UV

[0043]

[0044] The rotation speed is 1000 rpm, while stirring, add self-dulling polyester acrylic resin, acrylic modified hydrogenated rosin resin, isobornyl acrylate, cyclodecane dimethanol diacrylate, and disperse evenly. Add 907, DETX, TPO Stir until completely dissolved, then add cobalt black and carbon black and stir evenly, then disperse at a speed of 2000 rpm for 15 minutes to obtain a mixture, grind the mixture on a three-roller machine to a fineness of ≤5 μm, and stir at a speed of 1000 rpm While adding nano-silica light guide powder, tungsten oxide mica color-changing pigment, silicone leveling agent, and silicone defoamer in sequence, mix evenly. After mixing evenly, disperse at 2000 rpm for 25 minutes to obtain LED UV curing. black ink.

[0045] Use 350-mesh screen and 80° squeegee to scr...

Embodiment 2

[0047] The addition amount of each component of LED UV-cured black ink is shown in Table 2:

[0048] Table 2 Addition amount of each component of black ink cured by LED UV

[0049]

[0050]

[0051] The rotation speed is 1000 rpm, and while stirring, add self-dull polyurethane acrylate, acrylic modified maleic rosin resin, tetrahydrofuran acrylate, and dioxane diacrylate in sequence, and disperse evenly. Add 369, ITX, TPO, and stir until Dissolve completely, then add copper chromium black and carbon black and stir evenly, then disperse at 2000 rpm for 15 minutes to obtain a mixture, grind the mixture on a three-roller machine to a fineness ≤ 5 μm, and stir at a speed of 1000 rpm Add nano-silica light guide powder, rare earth color-changing pigment, silicone leveling agent, and silicone defoamer in sequence and mix evenly. After mixing evenly, disperse at a speed of 2000 rpm for 25 minutes to obtain LED UV-cured black ink .

[0052] Use 350-mesh screen and 80° squeegee ...

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Abstract

The invention discloses LED UV-cured black ink, which comprises, by weight, 20 to 40 parts of self-extinction light-cured resin, 15 to 35 parts of acrylic acid modified rosin resin, 5 to 15 parts of UV monofunctional monomer, 5 to 20 parts of UV multifunctional monomer, 1 to 10 parts of photoinitiator, 0.5 to 8 parts of photochromic pigment, 5 to 20 parts of inorganic black pigment, 3 to 15 partsof light guide powder, 0.5 to 5 parts of carbon black, 0.05 to 0.5 part of leveling agent and 0.05 to 0.5 part of defoamer. According to the LED UV-cured black ink, an LED UV curing technology is creatively adopted, photochromism and light guide technologies are combined, a wet film is formed after a base material is coated with the black ink with high covering power, the same curing efficiency ofthe wet film from the surface to the bottom is achieved through LED UV light curing, and a coating formed after curing meets the performance requirement of thermocuring ink.

Description

technical field [0001] The invention relates to the field of inks, in particular to a black ink cured by LED UV. In addition, the present invention also relates to a preparation method and application of the black ink cured by LED UV. Background technique [0002] As the screen-to-body ratio of mobile phones and other electronic products is getting higher and higher, the frame is getting smaller and smaller. Therefore, the shading effect of the shading ink coated on the frame is also getting higher and higher. After the shading ink is coated The formed coating should not only be light and thin, but also need to have high hiding power. Under normal circumstances, the shading ink of the 3C industry frame is basically a black ink with high hiding power. In order to solve the problem of high hiding power of the black ink on the frame, the traditional shading ink has a high content of carbon black in the black ink, and some inks have a carbon black content as high as 10%. There...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D11/101C09D11/107C09D11/03C09D11/037
CPCC09D11/101C09D11/107C09D11/03C09D11/037
Inventor 彭忠王卫国缪培凯凌云剑符饶生杨波吕国强李平
Owner HUNAN SOKAN NEW MATERIAL
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