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LED curing ink for surface of paint spraying part and preparation method and curing method thereof

A technology of ink and acylphosphine oxide, which is applied in the field of printing ink and can solve the problems of solvent volatilization, high energy consumption, and complicated process

Inactive Publication Date: 2017-09-08
苏州昭奇凯虹精细化工有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Solvent-based ink needs to be baked at high temperature for a long time, which consumes a lot of energy, and the solvent volatilizes during the baking process, causing serious environmental pollution; if two-color or multi-color printing is required, multiple baking is required, the process is complicated, and the product cycle is long.
Although the decal process can be formed at one time, the cost is high and the yield rate is low, and it takes a long time to bake and consumes a lot of energy

Method used

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  • LED curing ink for surface of paint spraying part and preparation method and curing method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0043] A Add 6kg of isobornyl acrylate and 3.75kg of dimethylacrylamide, the rotating speed is 300-500r / min, add 5.25kg of acylphosphine oxide while stirring, stir evenly, heat, fully dissolve, and prepare the initiator;

[0044] B, at a rotating speed of 600-900r / min, sequentially add 15kg of polyester acrylate, 15kg of epoxy resin, 20kg of polyurethane acrylate, 5kg of dispersant, 8kg of pigment, filler (silicon dioxide powder) into the initiator obtained in step A Body) 20kg and stir evenly, after grinding to below 5μm on a three-roller machine, add 1kg of defoamer and 1kg of leveling agent, stir evenly, and then get the LED curable ink for the surface of the painted part.

Embodiment 2

[0046] A Add 7kg of isobornyl acrylate and 7kg of dimethylacrylamide at a speed of 300-500r / min, while stirring, add 12.6kg of acylphosphine oxide, 1.4kg of thioxanthone and its derivatives, stir evenly, and heat , fully dissolved to prepare the initiator;

[0047] B, at a rotating speed of 600-900r / min, sequentially add 25kg of polyester acrylate, 25kg of epoxy resin, 10kg of polyurethane acrylate, 2kg of dispersant, 3kg of pigment, filler (talc powder) into the initiator obtained in step A ) 5kg and stir evenly, grind to below 5μm on a three-roller machine, then add 0.kg of defoamer and 0.5kg of leveling agent, stir evenly, and then get the LED cured ink for the surface of the painted part.

Embodiment 3

[0049] A Add 8.4kg of isobornyl acrylate, 8.4kg of dimethylacrylamide, the rotation speed is 300-500r / min, while stirring, add 12kg of acylphosphine oxide, 1.2kg of thioxanthone and its derivatives, and stir evenly. Heating in an oven at 90°C, fully dissolving, and preparing the initiator;

[0050] B At the speed of 600-900r / min, add 18kg of polyester acrylate, 19kg of epoxy resin, 15kg of polyurethane acrylate, 2kg of dispersant (wetting and dispersing agent), 3kg of pigment, Stir 10kg of filler (talc powder) evenly, grind it to below 5μm on a three-roller machine, then add 0.8kg of defoamer and 0.2kg of leveling agent, stir evenly, and then get the LED cured ink for the surface of the painted part.

[0051] In the above examples 1-3, the maximum absorption wavelength of the acylphosphine oxide is at 380nm, and it also absorbs at 430nm in the visible light region; polyester acrylate is a resin with 1-2 functionality; polyurethane acrylate is a resin with 3-10 functionality. ...

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Abstract

The invention discloses an LED curing ink for surface of a paint spraying part, composite ink based on the LED curing ink and a preparation method and a curing method of the LED curing ink. The LED curing ink for the surface of the paint spraying part comprises, by weight, 15-25% of polyester acrylate, 15-25% of epoxy resin, 10-20% of polyurethane acrylate, 15-30% of initiators, 2-5% of dispersants, 3-8% of pigments, 5-20% of fillers, 0.5-1 part of defoamer and 0.2-1 part of levelling agent. The initiators comprise, by weight, 35-45% of acyl phosphine oxide, 0-5% of thioxanthone and / or derivatives of the thioxanthone, 25-40% of isobornyl acrylate and 25-40% of dimethylacrylamide. The LED curing ink is exposed to an LED light source so that curing of the surface can be achieved, duotone or multi-color painting can be conducted continuously, repeated baking processes are omitted, and energy consumption, labor and time are saved.

Description

technical field [0001] The invention belongs to the field of printing inks, and in particular relates to an LED curing ink used on the surface of a painted part, a composite ink based on the LED curing ink, a preparation method and a curing method of the LED curing ink. Background technique [0002] At present, most of the screen printing solvent-based inks or printing processes are used to print patterns on painted parts. Solvent-based ink needs to be baked at high temperature for a long time, which consumes a lot of energy, and the solvent volatilizes during the baking process, causing serious environmental pollution; if two-color or multi-color printing is required, multiple baking is required, the process is complicated, and the product cycle is long. . Although the decal process can be formed at one time, the cost is high and the yield rate is low, and it requires a long time to bake and consumes a lot of energy. Contents of the invention [0003] In view of the abo...

Claims

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Application Information

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IPC IPC(8): C09D11/101C09D11/104C09D11/102C09D11/03
CPCC09D11/03C09D11/101C09D11/102C09D11/104
Inventor 邵晓光沈朝阳顾辉平刑敦设
Owner 苏州昭奇凯虹精细化工有限公司
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