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A kind of uv offset printing fast ink

A light-fast and ink technology, applied in the field of ink printing, can solve the problems of UV ink curing, offset printing resin easy yellowing, initiator yellowing, etc., and achieve the effect of easy self-polymerization, preventing fading, and preventing yellowing

Active Publication Date: 2021-03-19
HUBEI CHINA TOBACCO IND +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Because the pigments of traditional inks have a low level of light resistance, offset printing resins are prone to yellowing, initiators cause yellowing, no light stabilizers are used or traditional light stabilizers will affect the curing of UV inks
Traditional UV offset printing inks pay more attention to hiding power, printability, dryness, etc., and less consideration to issues such as fading, yellowing, and migration, so there are the following problems: Colors are easy to fade and migrate; white is easy to turn yellow

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] The parts by weight of each component in the present embodiment are as follows; 30 parts of ditrimethylolpropane triacrylate, 5 parts of ethoxylated trimethylolpropane triacrylate, 10 parts of polydiallyl phthalate 15 parts, 15 parts of mercapto-modified urethane acrylates; 5 parts of acrylate copolymers; 15 parts of permanent yellow pigments; photoinitiation is the mass parts of 2,4,6-trimethylbenzoyl-diphenylphosphine oxide 2 parts, 2 parts by mass of phenyl bis (2,4,6-trimethylbenzoyl) phosphine oxide, 3 parts by mass of benzophenone derivatives; 2 parts of light stabilizer; 3 doses. (The light stabilizer is p-methoxyphenol, and the dispersant is commonly used polyacrylate)

Embodiment 2

[0026] The parts by weight of each component in the present embodiment are as follows; 35 parts of ditrimethylolpropane triacrylate, 10 parts of ethoxylated trimethylolpropane triacrylate, 15 parts of polydiallyl phthalate 20 parts, 20 parts of mercapto-modified urethane acrylates; 10 parts of acrylate copolymers; 20 parts of light-fast green pigments; photoinitiation is the mass parts of 2,4,6-trimethylbenzoyl-diphenylphosphine oxide 3 parts, 3 parts by mass of phenyl bis (2,4,6-trimethylbenzoyl) phosphine oxide, 4 parts by mass of benzophenone derivatives; 3 parts of light stabilizer; 4 doses. (The light stabilizer is p-methoxyphenol, and the dispersant is commonly used polyacrylate)

Embodiment 3

[0028] The parts by weight of each component in the present embodiment are as follows; 30 parts of ditrimethylolpropane triacrylate, 7 parts of ethoxylated trimethylolpropane triacrylate, 12 parts of polydiallyl phthalate 17 parts, 17 parts of mercapto-modified polyurethane acrylate; 8 parts of acrylate copolymer; 17 parts of fast red BBN pigment; the photoinitiator is 2,4,6-trimethylbenzoyl-diphenylphosphine oxide 2.3 parts by mass, 2.4 parts by mass of phenylbis(2,4,6-trimethylbenzoyl) phosphine oxide, 3.5 parts by mass of benzophenone derivatives; 2.5 parts by light stabilizer ; 3.5 parts of dispersant. (The light stabilizer is p-methoxyphenol, and the dispersant is commonly used polyacrylate)

[0029] When the printed inks configured according to the composition of Examples 1 to 3 are placed under strong sunlight, the color of the samples does not change. The ink of the present invention has good sun protection, anti-fading and whitening functions.

[0030] The acrylic e...

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PUM

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Abstract

The invention provides UV offset print sun-proof printing ink, and belongs to the technical field of ink printing. The UV offset print sun-proof printing ink is prepared from the following substancesin parts by weight: 60-80 parts of monomer compound, 5-10 parts of acrylate copolymer, 15-20 parts of sun-proof pigment, 2-10 parts of photoinitiator, 2-3 parts of light stabilizer and 3-4 parts of dispersing agent. Acrylate copolymer used in the printing ink has an active double-bond, can easily auto-agglutinate, and easily copolymerize, and can accelerate curing speed of printing ink, the mixture of various kinds of monomers can enhance the stability of the printing ink after being cured, the printing ink is prevented from yellowing, the color fixation of the product is strengthened by usingthe sun-proof pigment, and the printing ink is prevented from fading in a high temperature and sunlight environment.

Description

technical field [0001] The invention relates to the technical field of ink printing, in particular to a light-resistant ink for UV offset printing. [0002] technical background [0003] UV (ultraviolet curing) ink refers to the ink that uses ultraviolet light of different wavelengths and energies to polymerize the monomers in the ink binder into polymers to form a film and dry the ink under ultraviolet radiation. UV inks are also inks. As inks, they must have bright colors (except in special cases), good printability, and suitable curing and drying rates. At the same time, it has good adhesion, and has the characteristics of wear resistance, corrosion resistance and weather resistance. [0004] UV ink has the characteristic of selectively absorbing UV light. Drying is affected by the total energy of the radiated light from the UV light source and the distribution of light energy at different wavelengths. Under the irradiation of UV light, the UV ink photopolymerization in...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09D11/101C09D11/102C09D11/107C09D11/037C09D11/03
CPCC09D11/03C09D11/037C09D11/101C09D11/102C09D11/107
Inventor 刘冬朱红艳孙鹏陈思思姚俊杰朱梦白潘笑平刘秀
Owner HUBEI CHINA TOBACCO IND