Fluorescent ink and preparation method thereof

A fluorescent ink and fluorescent powder technology, applied in the field of ink, can solve the problems of poor stability, narrow emission spectrum, and low color purity, and achieve good compatibility, good dispersion, and improved water resistance and corrosion resistance.

Inactive Publication Date: 2018-11-30
WUHU BEISI SCI & TECH PARK
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] At present, the fluorescent agents commonly used in fluorescent anti-counterfeiting inks are organic fluorescent dyes and rare earth fluorescent dyes. The former emits fluorescence with a broad spectrum, low color purity and poor stability, while the latter has high luminous intensity, narrow emission spectrum, and high fluorescence efficiency. With the advantages of good stability and environmental protection, it is increasingly used in the preparation of fluorescent anti-counterfeiting inks

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0017] A kind of fluorescent ink, its raw material comprises by weight: 35 parts of acrylic resin, 20 parts of epoxy resin, 20 parts of fluorescent powder, 6 parts of auxiliary agent, 15 parts of ethanol, 20 parts of water, wherein said auxiliary agent comprises polyethylene wax , polyether siloxane copolymer emulsion, emulsified Brazilian wax, ethylene glycol methyl ether;

[0018] Wherein, the preparation process of the fluorescent powder is as follows: mix the aqueous solution of terbium nitrate hexahydrate and tolyltriazole, then drop in o-phenanthroline and benzoic acid, stir at room temperature for 4 hours, suction filter after the reaction is completed, and The solid matter obtained by filtration was washed with warm water at 25°C, and then dried at a constant temperature at 60°C for 20 hours to obtain a phosphor;

[0019] The molar ratio of the rare earth terbium nitrate hexahydrate, tolyltriazole, phenanthroline and benzoic acid is 1:3:1:2.

[0020] The preparation m...

Embodiment 2

[0022] A kind of fluorescent ink, its raw material comprises by weight: 25 parts of acrylic resin, 30 parts of epoxy resin, 10 parts of fluorescent powder, 16 parts of auxiliary agent, 10 parts of ethanol, 30 parts of water, wherein said auxiliary agent comprises polyethylene wax , polyether siloxane copolymer emulsion, emulsified Brazilian wax, ethylene glycol methyl ether;

[0023] Wherein, the preparation process of the fluorescent powder is as follows: mix the aqueous solution of terbium nitrate hexahydrate and tolyltriazole, then drop in o-phenanthroline and benzoic acid, stir at room temperature for 1 hour, suction filter after the reaction is completed, and The solid matter obtained by filtration was washed with warm water at 35°C, and then dried at a constant temperature at 50°C for 24 hours to obtain a phosphor;

[0024] The molar ratio of the rare earth terbium nitrate hexahydrate, tolyltriazole, phenanthroline and benzoic acid is 1:2:2:1.

[0025] The preparation m...

Embodiment 3

[0027] A kind of fluorescent ink, its raw material comprises by weight: 32 parts of acrylic resin, 23 parts of epoxy resin, 18 parts of fluorescent powder, 9 parts of auxiliary agent, 14 parts of ethanol, 22 parts of water, wherein said auxiliary agent comprises polyethylene wax , polyether siloxane copolymer emulsion, emulsified Brazilian wax, ethylene glycol methyl ether;

[0028] Wherein, the preparation process of the fluorescent powder is as follows: mix the aqueous solution of terbium nitrate hexahydrate and tolyltriazole, then drop in o-phenanthroline and benzoic acid, stir at room temperature for 3 hours, suction filter after the reaction is completed, and The solid matter obtained by filtration was washed with warm water at 27°C, and then dried at a constant temperature at 58°C for 21 hours to obtain a phosphor;

[0029] The molar ratio of the rare earth terbium nitrate hexahydrate, tolyltriazole, phenanthroline and benzoic acid is 1:3:1:2.

[0030] The preparation m...

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PUM

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Abstract

The invention discloses fluorescent ink. The fluorescent ink is prepared from an acrylic resin, an epoxy resin, phosphor, an auxiliary agent, ethanol and water. The auxiliary agent comprises polyethylene wax, a polyether siloxane copolymer emulsion, emulsive Brazilian wax and ethylene glycol methyl ether. The invention also discloses a preparation method of the fluorescent ink. The fluorescent inkcontains acrylic resin and epoxy resin as main binders. Through use of the phosphor and auxiliary agent, the fluorescent ink has good viscosity, adhesion fastness, light resistance, heat resistance and corrosion resistance. The preparation method is simple, efficient, energy-saving and environmentally friendly.

Description

technical field [0001] The invention relates to the technical field of ink, in particular to a fluorescent ink and a preparation method thereof. Background technique [0002] In recent years, with the continuous maturity of printing anti-counterfeiting technology and the continuous improvement of consumers' aesthetic concept of product packaging visual effects, more and more printing suppliers have turned their attention to fluorescent inks. Fluorescent inks are favored by consumers in the printing market and more and more people in the printing industry for their special color rendering performance, green non-toxicity, fine background color, fast drying, and thin ink layer, and are widely used in packaging printing and anti-counterfeiting In the field of printing, including high-end tobacco, alcohol, cosmetic packaging, official documents, securities, etc. [0003] At present, the fluorescent agents commonly used in fluorescent anti-counterfeiting inks are organic fluoresc...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D11/50C09D11/107C09D11/102C09D11/03
CPCC09D11/03C09D11/102C09D11/107C09D11/50
Inventor 张宏标张倍思
Owner WUHU BEISI SCI & TECH PARK
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