UV ink having reversible thermochromic capacity and used for PVC (polyvinyl chloride), preparation method and use method

A technology of temperature-sensitive color-changing pigments and inks, applied in the field of printing inks, can solve the problems of less research on temperature-sensitive color-changing temperature control and high ink prices, and achieve the effects of avoiding product quality degradation, convenient operation, and fast speed

Active Publication Date: 2017-10-10
辑美包装印刷科技(厦门)有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, due to the high price of this ink, it is generally used on high-end printed materials, which limits
At present, although there are many studies on temperature-sensitive color-changing materials, there are few studies on temperature-sensitive reversible color-changing UV ink systems and their temperature control during heating and cooling.

Method used

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  • UV ink having reversible thermochromic capacity and used for PVC (polyvinyl chloride), preparation method and use method
  • UV ink having reversible thermochromic capacity and used for PVC (polyvinyl chloride), preparation method and use method
  • UV ink having reversible thermochromic capacity and used for PVC (polyvinyl chloride), preparation method and use method

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preparation example Construction

[0033] The present invention proposes a kind of preparation method of temperature-sensitive reversible discoloration UV ink for PVC, and it comprises the following steps:

[0034] Premixing: Mix the prepolymer, monomer, accelerator and defoamer, and stir at 60-85°C to obtain the mixture;

[0035] Pigment dispersion: Then add thermochromic pigments, photoinitiators, and dispersants into the mixture, and stir.

[0036] First, through the pre-mixing process, the pre-polymer, monomer, accelerator and defoamer are pre-mixed at a certain temperature. During this process, the temperature is relatively high to ensure that the materials can be mixed effectively. In addition, preliminary stirring and mixing of the above raw materials can form a uniform and stable mixture, which is more convenient for the subsequent addition of pigments. In addition, the pre-mixing process can avoid premature addition of pigments, photoinitiators, etc., which will be greatly affected during subsequent o...

Embodiment 1

[0043] A temperature-sensitive reversible discoloration UV ink for PVC provided in this embodiment, in terms of weight percentage, its raw materials include the following components: 37.41% epoxy acrylic resin, 45.35% hexanediol diacrylate, trimethylbenzene Formyl diphenyl phosphine oxide 6.02%, active amine 3.74%, active content polymer dispersant 1.2%, silicone oil defoamer 1.02%, thermochromic powder 5.26%.

[0044] The above raw materials are analytically pure.

[0045] The temperature-sensitive reversible discoloration UV ink for PVC is prepared according to the following steps:

[0046] a. Prepare materials: epoxy acrylic resin, hexanediol diacrylate, trimethylbenzoyl diphenyl phosphine oxide (I1), active amine, silicone oil defoamer, active content polymer dispersant and The temperature-sensitive color-changing powder is weighed one by one according to the above-mentioned raw material composition for later use, and the photoinitiator is taken as backup in step b.

[0...

Embodiment 2

[0050] A temperature-sensitive reversible discoloration UV ink for PVC provided in this embodiment, in terms of weight percentage, its raw materials include the following components: 50.11% epoxy acrylic resin, 30.04% hexanediol diacrylate, trimethylbenzene Formyl diphenyl phosphine oxide 8.04%, active amine 5.07%, active content polymer dispersant 0.7%, silicone oil defoamer 1.04%, thermochromic powder 5%.

[0051] The above raw materials are analytically pure.

[0052] The temperature-sensitive reversible discoloration UV ink for PVC is prepared according to the following steps:

[0053] a. Prepare materials: epoxy acrylic resin, hexanediol diacrylate, trimethylbenzoyl diphenyl phosphine oxide (I1), active amine, silicone oil defoamer, active content polymer dispersant and The temperature-sensitive color-changing powder is weighed one by one according to the above-mentioned raw material composition for later use, and the photoinitiator is taken as backup in step b.

[0054...

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Abstract

The invention provides UV ink having reversible thermochromic capacity and used for PVC (polyvinyl chloride), a preparation method and a use method and relates to the technical field of printing ink. Raw materials of the UV ink comprise 30%-54% of a prepolymer, 30%-51% of a monomer, 5%-9% of a photoinitiator, 3%-7% of an accelerator, 0.5%-2% of a dispersing agent, 1%-2% of a defoamer and 2%-6% of a thermochromic pigment. The UV ink is prepared from the specific raw materials in specific dosage, has the reversible thermochromic function, can be applied to anti-counterfeit printing for packaging, and is high in adhesion, simple to cure, good in strength and good in resistance. The invention further relates to a manufacture process and the use method of the UV ink. The prepolymer, the monomer, the accelerator and the defoamer are premixed, a mixture is obtained, then the thermochromic pigment, the photoinitiator and the dispersing agent are added to the mixture, and the mixture is stirred. The preparation method is simple and easy to operate. The use method of the UV ink is simple and has broad application prospects.

Description

technical field [0001] The invention relates to the technical field of printing ink, and in particular to a temperature-sensitive reversible color-reversible UV ink for PVC, a preparation method, and a use method. Background technique [0002] UV ink, also known as ultraviolet curable 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 ink not only has bright colors, good printability, suitable curing and drying rate, good adhesion, wear resistance, corrosion resistance, weather resistance, etc., but also has fast curing speed, high printing quality, and no VOC emissions. Etc. UV ink is an economical and efficient ink that has covered all printing fields. At present, the most important markets for UV inks in the world are: Europe, America, China, and Japan. The market for UV inks required by China is gradually expand...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D11/50C09D11/101C09D11/03C09D11/102
CPCC09D11/03C09D11/101C09D11/102C09D11/50
Inventor 李月嫦谢安曹光
Owner 辑美包装印刷科技(厦门)有限公司
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