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UV printing ink capable of being directly printed on UV coating and method for using printing ink

A coating and ink technology, applied in the post-processing of printing, printing, ink, etc., can solve the problems of many processes, low qualified rate of finished products, and time-consuming labor, so as to improve the yield rate, change the three-dimensional texture effect, and achieve continuity Effect

Active Publication Date: 2010-06-09
TONGDA XIAMEN TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Among them, a common process scheme for UV printing is: paint spraying-sandwich printing-UV spraying, and printing is done under the UV coating. This scheme overcomes the problem that UV ink cannot be attached to the surface of UV coating, but this scheme The process is complicated, there are many procedures, time-consuming, and the qualified rate of finished products is low

Method used

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  • UV printing ink capable of being directly printed on UV coating and method for using printing ink
  • UV printing ink capable of being directly printed on UV coating and method for using printing ink
  • UV printing ink capable of being directly printed on UV coating and method for using printing ink

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0050] UV ink composition:

[0051] SP series ink: 80Kg from Taiwan Yuyuanfu Company;

[0052] SG740 series resin (main component: C 3 h 8 N 2 O) Japan Seiko ink company 9Kg;

[0053] Adhesive: γ-Aminopropyltriethylsilane H 2 NCH 2 CH 2 CH 2 Si(OC 2 h 5 ) 35Kg

[0054] Curing agent: N-methylol-3,4,5,6-tetrahydrophthalimide, molecular formula: C 9 h 11 NO 3 1.5Kg;

[0055]

[0056] Diluent: N-butanone, toluene, 7-acetate mixture 8Kg

[0057] In this embodiment, the UV ink is mixed in advance according to the above ratio, and stirred evenly for later use.

[0058] The process scheme related to the present invention is: paint spraying→drying→UV spraying→drying→UV irradiation→removal→inspection→printing (UV ink)→drying→UV irradiation→inspection→post-processing→finished product packaging.

[0059] Process flow:

[0060] 1. Color paint spraying: On the UV coating of the mobile phone shell, use acrylic or polyurethane type paint, spray 2 coats to achieve the ...

Embodiment 2

[0070] UV ink composition:

[0071] SP series ink: Taiwan Yuyuanfu Company 83Kg;

[0072] SG740 series resin (main component: C 3 h 8 N 2 O) Japan Seiko ink company 9.2Kg;

[0073] Adhesive: g-(2,3-Glycidoxy)propyltrimethoxysilane CH 2 OCHCH 2 O(CH 2 ) 3 SI(OCH 3 ) 3 5.5Kg;

[0074] SG740 curing agent: N-methylol-3,4,5,6-tetrahydrophthalimide, molecular formula: C 9 h 11 NO 3 2.5Kg;

[0075]

[0076] Thinner: N-butanone, toluene, ethyl acetate 12Kg

[0077] Other than that, the process flow is the same.

[0078] The invention is used for the UV coating of consumer electronic products such as mobile phones, PHS, bluetooth earphones and MP3.

[0079] The achievable performance index of the product produced by the present invention is as follows:

[0080] Performance Indicator Type

achieve standard

testing method

Adhesion

≥4B

3M test tape, GB / T 9286-88

Adhesion

5B

3M Test Tape

pencil hardness...

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PUM

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Abstract

The invention discloses a UV printing ink capable of being directly printed on an ultraviolet curing (UV) coating and a method for using the printing ink. An auxiliary agent (-NCO / -OH auxiliary agent) is added to the common printing ink, namely, -NCO / -OH addition reaction is introduced in the photo initiated polymerization reaction, and dual curing reaction of UV and -NCO is realized, so the UV printing ink has strong adhesion with the UV coating, has stronger physicochemical properties, such as hardness, wear resistance, chemical resistance and ageing resistance and is printed on the UV coating, the continuity of the production process is realized and the production yield is improved. At the same time, compared with the conventional sandwich printing, the technology makes the UV printing ink have the three-dimensional texture effect.

Description

technical field [0001] The invention relates to a printing ink and technology, in particular to a UV ink which can be directly printed on an ultraviolet curing (UV) coating and a method for using the ink. Background technique [0002] Ultraviolet (UV) curing ink is a process in which free radicals are generated by ultraviolet light excitation, and then various active components in the formula are triggered by free radicals, and are rapidly converted into solids. Compared with traditional printing inks, printing methods and drying methods, UV-curable inks have the following advantages: [0003] (1), no volatile solvent emissions, no pollution to the environment; [0004] (2), saving energy; [0005] (3), high production efficiency; [0006] (4) Instant drying, small dot gain, no need to spray powder during the drying process; [0007] (5), small footprint, can reduce investment; [0008] UV curable ink can be divided into: gravure printing, lithography, screen printing, ...

Claims

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Application Information

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IPC IPC(8): C09D11/10B41M7/00B05D1/38B05D7/24B05D3/06B42D15/00C09D11/101
Inventor 钟志武郭齐取
Owner TONGDA XIAMEN TECH
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