CN109385142B - Fluorescent ink and preparation method and identification method thereof - Google Patents
Fluorescent ink and preparation method and identification method thereof Download PDFInfo
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- CN109385142B CN109385142B CN201811150598.7A CN201811150598A CN109385142B CN 109385142 B CN109385142 B CN 109385142B CN 201811150598 A CN201811150598 A CN 201811150598A CN 109385142 B CN109385142 B CN 109385142B
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- fluorescent ink
- ultraviolet lamp
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- fluorescent
- solvent
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D11/00—Inks
- C09D11/50—Sympathetic, colour changing or similar inks
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D11/00—Inks
- C09D11/02—Printing inks
- C09D11/10—Printing inks based on artificial resins
- C09D11/102—Printing inks based on artificial resins containing macromolecular compounds obtained by reactions other than those only involving unsaturated carbon-to-carbon bonds
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/62—Systems in which the material investigated is excited whereby it emits light or causes a change in wavelength of the incident light
- G01N21/63—Systems in which the material investigated is excited whereby it emits light or causes a change in wavelength of the incident light optically excited
- G01N21/64—Fluorescence; Phosphorescence
- G01N21/6428—Measuring fluorescence of fluorescent products of reactions or of fluorochrome labelled reactive substances, e.g. measuring quenching effects, using measuring "optrodes"
Abstract
The invention discloses fluorescent ink which is prepared by mixing a component A and a component B, wherein the component A is prepared by reacting rare earth europium salt and 1-phenyl-1, 3-butanedione in a solvent, and the component B comprises polyamide resin, ethanol, isopropanol, n-butanol and an auxiliary agent. The invention also discloses an identification method of the preparation method of the fluorescent ink. The fluorescent ink provided by the invention has transparent imprints, no fluorescence emission under the irradiation of an ultraviolet lamp and quite high concealment; after the special substance is used for treatment, the mark emits fluorescent response and emits bright red light under the irradiation of an ultraviolet lamp; after the specific substances (key) are removed, the ink returns to the state without fluorescence emission under an ultraviolet lamp, so that the anti-counterfeiting effect is very unique, and the anti-counterfeiting level is higher than that of the conventional ink; the preparation process is simple, the cost is low, the promotion resistance is small, and the application prospect is wide.
Description
Technical Field
The invention relates to the technical field of anti-counterfeiting, in particular to fluorescent ink and a preparation method thereof.
Background
Fluorescent ink is one of the more used inks in ticket printing, and the main components of the fluorescent ink are fluorescent pigment and fluorescent dye. The fluorescent pigment belongs to a functional luminescent pigment, and is different from a common pigment in that when external light (including ultraviolet light) is irradiated, energy in a certain form can be absorbed, photons are excited, and the absorbed energy is released in a low visible light form, so that a fluorescent phenomenon with different hues is generated. The different colors of light combine to form an exceptionally bright color, and when the light ceases to be emitted, the phenomenon of luminescence disappears, hence the name fluorescent pigment. The fluorescent pigment is mixed with the macromolecular resin binder, the solvent and the auxiliary agent, and the mixture is ground to obtain the fluorescent ink. This invisible ink only emits light in the ultraviolet or infrared, and its use in the specialty printing industry is widespread due to its switchable and covert features and the inability to be accurately reproduced on color copiers.
Fluorescent ink is one of the most important branches of anti-counterfeiting ink, and is also ivy in the technical field of anti-counterfeiting ink. Fluorescent ink on the existing market can be divided into three categories of ultraviolet excitation, infrared excitation and visible light excitation according to excitation light, and the main technical characteristics are that when the excitation light irradiates on an image-text seal printed by the fluorescent ink, the seal emits radiation mainly based on visible light, and the technology is quite mature and has lower anti-counterfeiting level. New fluorescent ink products with high anti-counterfeiting strength are urgently needed in the market.
Disclosure of Invention
The invention aims to provide the fluorescent ink with unique anti-counterfeiting effect and high anti-counterfeiting grade.
The invention also aims to provide a preparation method of the anti-counterfeiting ink.
The invention also aims to provide an identification method of the anti-counterfeiting ink.
In order to solve the technical problems, the invention adopts the technical scheme that:
the fluorescent ink is prepared by mixing a component A and a component B, wherein the component A is prepared by reacting rare earth europium salt and 1-phenyl-1, 3-butanedione in a solvent, and the component B comprises polyamide resin, ethanol, isopropanol, n-butanol and an auxiliary agent.
Preferably, the rare earth europium salt is nitrate or chloride, the solvent is a mixed solvent of ethanol, isopropanol and n-butanol, and the auxiliary agent comprises erucamide and wax powder.
Preferably, the fluorescent ink comprises the following components in parts by weight:
more preferably, the paint comprises the following components in parts by weight:
further, the fluorescent ink mark is transparent, no fluorescence is emitted under the irradiation of an ultraviolet lamp, and after the fluorescent ink mark is treated by using a specific substance, the mark emits fluorescence response under the irradiation of the ultraviolet lamp.
Preferably, the specific substance is one or a mixture of ethylamine, diethylamine and triethylamine gas substances.
The invention also provides a preparation method of the fluorescent ink, which comprises the following steps:
(1) reacting rare earth europium salt and 1-phenyl-1, 3-butanedione in a solvent to prepare a solution;
(2) and (2) oscillating and dispersing the solution obtained in the step (1) with polyamide resin, ethanol, isopropanol, n-butanol and an auxiliary agent according to a certain mass ratio, and filtering to obtain the fluorescent ink.
Preferably, the solvent in the step (1) is a mixed solvent of ethanol, isopropanol and n-butanol, and the auxiliary agent in the step (2) is erucamide and wax powder.
The invention also provides an anti-counterfeiting identification method of the fluorescent ink, which comprises the following steps:
s1: irradiating under an ultraviolet lamp, and marking without fluorescence emission;
s2: adding a specific substance, wherein the specific substance is an alkaline substance;
s3: irradiating under an ultraviolet lamp, and emitting bright red light by the mark;
s4: removing the specific gas substances in the second step by using a common electric hair drier;
s5: the print was free of fluorescent emission under uv light.
Preferably, the specific substance is one or a mixture of ethylamine, diethylamine and triethylamine gas substances.
The fluorescent ink provided by the invention has transparent imprints, no fluorescence emission under the irradiation of an ultraviolet lamp and quite high concealment; after the special substance is used for treatment, the mark emits fluorescent response and emits bright red light under the irradiation of an ultraviolet lamp; after the specific substances (key) are removed, the ink returns to the state without fluorescence emission under an ultraviolet lamp, so that the anti-counterfeiting effect is very unique, and the anti-counterfeiting level is higher than that of the conventional ink; the preparation process is simple, the cost is low, the promotion resistance is small, and the application prospect is wide.
Drawings
FIG. 1 is a graph showing the anti-counterfeit effect of the fluorescent ink of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, but the technical solutions do not limit the scope of the present invention.
The proportions of the fluorescent ink of the invention are shown in the following table:
first, the fluorescent ink of the present invention mainly comprises rare earth europium salt (nitrate or chloride salt) and 1-phenyl-1, 3-butanedione, and the mixture of the two in any proportion can have unique anti-counterfeit effect, and this example is only described as a preferred embodiment, but not limited thereto, and the components of the examples of the present invention are shown in the following table:
the preparation method of the ink comprises the following steps:
(1) reacting rare earth europium salt and 1-phenyl-1, 3-butanedione in a mixed solvent of ethanol, isopropanol and n-butanol to prepare a solution; in this embodiment, the rare earth europium salt is europium nitrate. Specifically, in a preferred embodiment of the present invention, the ratio of ethanol, isopropanol and n-butanol is 1: 1: 1.
(2) and (2) shaking and dispersing the solution obtained in the step (1), polyamide resin, ethanol, isopropanol, n-butanol, erucamide and wax powder according to the mass ratio, and filtering to obtain the fluorescent ink.
As shown in FIG. 1, the method for identifying the anti-counterfeiting characteristic of the fluorescent ink comprises the following steps:
the first step is as follows: irradiating under an ultraviolet lamp, and marking without fluorescence emission;
the second step is that: adding a specific substance, wherein the specific substance is one or a mixture of basic substances, preferably ethylamine, diethylamine, triethylamine and other gas substances;
the third step: irradiating under an ultraviolet lamp, and emitting bright red light by the mark;
the fourth step: removing the specific gas substances in the second step by using a common electric hair drier;
the fifth step: the print was free of fluorescent emission under uv light.
As shown in figure 1, the fluorescent ink prepared according to the formula and the method of the invention has transparent imprints, no fluorescence emission under the irradiation of an ultraviolet lamp and quite high concealment; after the special substance is used for treatment, the mark emits fluorescent response and emits bright red light under the irradiation of an ultraviolet lamp; after the specific substances (key) are removed, the ink returns to the state without fluorescence emission under an ultraviolet lamp, so that the anti-counterfeiting effect is very unique, and the anti-counterfeiting level is higher than that of the conventional ink; the preparation process is simple, the cost is low, the promotion resistance is small, and the application prospect is wide.
While the foregoing is directed to the preferred embodiment of the present invention, it will be understood by those skilled in the art that various changes and modifications may be made without departing from the spirit and scope of the invention.
Claims (6)
1. The fluorescent ink is characterized by being prepared by mixing a component A and a component B, wherein the component A is prepared by reacting rare earth europium salt and 1-phenyl-1, 3-butanedione in a solvent, and the component B comprises polyamide resin, ethanol, isopropanol, n-butanol and an auxiliary agent;
the rare earth europium salt is nitrate or chloride, the solvent is a mixed solvent of ethanol, isopropanol and n-butanol, and the auxiliary agent comprises erucamide and wax powder;
the fluorescent ink mark is transparent, no fluorescence is emitted under the irradiation of an ultraviolet lamp, and the mark emits fluorescence response under the irradiation of the ultraviolet lamp after being treated by a specific substance;
the specific substance is one or a mixture of ethylamine, diethylamine and triethylamine gas substances.
2. The fluorescent ink according to claim 1, comprising in parts by weight:
3. the fluorescent ink according to claim 2, which comprises the following components in parts by weight:
4. a method for preparing the fluorescent ink as claimed in any one of claims 1 to 3, comprising the steps of:
(1) reacting rare earth europium salt and 1-phenyl-1, 3-butanedione in a solvent to prepare a solution;
(2) and (2) oscillating and dispersing the solution obtained in the step (1) with polyamide resin, ethanol, isopropanol, n-butanol and an auxiliary agent according to a certain mass ratio, and filtering to obtain the fluorescent ink.
5. The method of preparing a fluorescent ink of claim 4, wherein: the solvent in the step (1) is a mixed solvent of ethanol, isopropanol and n-butanol, and the auxiliary agent in the step (2) is erucamide and wax powder.
6. A method for anti-counterfeiting identification of the fluorescent ink according to any one of claims 1 to 3, which comprises the following steps:
s1: irradiating under an ultraviolet lamp, and marking without fluorescence emission;
s2: adding a specific substance, wherein the specific substance is an alkaline substance;
s3: irradiating under an ultraviolet lamp, and emitting bright red light by the mark;
s4: removing the specific gas substances in the second step by using a common electric hair drier;
s5: the print was free of fluorescent emission under uv light.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201811150598.7A CN109385142B (en) | 2018-09-29 | 2018-09-29 | Fluorescent ink and preparation method and identification method thereof |
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| CN201811150598.7A CN109385142B (en) | 2018-09-29 | 2018-09-29 | Fluorescent ink and preparation method and identification method thereof |
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| CN109385142B true CN109385142B (en) | 2021-12-14 |
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| CN111751336B (en) * | 2019-03-27 | 2021-08-31 | 天津大学 | Application of D-A type organic doped crystal afterglow material in anti-counterfeiting |
| CN113580797B (en) * | 2021-07-16 | 2023-03-07 | 硕包科技(扬州)有限公司 | Film multilayer three-dimensional pattern anti-counterfeiting printing process with prism refraction function |
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| JPH1017571A (en) * | 1996-07-01 | 1998-01-20 | Toyo Ink Mfg Co Ltd | Red color fluorescent material and composition containing the same |
| CN1576268A (en) * | 2003-07-11 | 2005-02-09 | 东方化学工业株式会社 | Luminous organic compound and manufacturing method |
| CN103223795A (en) * | 2012-10-24 | 2013-07-31 | 北京印刷学院 | Printing and imaging method with additive color process |
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| JP2013203801A (en) * | 2012-03-27 | 2013-10-07 | Toyo Seikan Co Ltd | Ink composition for inkjet printing viewable by ultraviolet irradiation, and container with hidden mark |
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| US9834660B2 (en) * | 2007-06-28 | 2017-12-05 | Honeywell International Inc. | Rare earth metal complexes that excite in the long UV wavelength range |
| CN103396699B (en) * | 2013-07-30 | 2014-11-26 | 江西核工业兴中科技有限公司 | Environment-friendly fluorescent enhanced anti-counterfeiting ink and preparation method thereof |
| CN106243835A (en) * | 2015-07-20 | 2016-12-21 | 广东壮丽彩印股份有限公司 | A kind of aqueous rare earth compounding complex microsphere fluorescent ink and preparation technology thereof |
| CN107089905A (en) * | 2017-03-14 | 2017-08-25 | 中山大学 | Triethylamine fluorescent optical sensor based on nanometer zeolite L rare-earth beta diketone complex hybrid material and its preparation method and application |
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| JPH1017571A (en) * | 1996-07-01 | 1998-01-20 | Toyo Ink Mfg Co Ltd | Red color fluorescent material and composition containing the same |
| CN1576268A (en) * | 2003-07-11 | 2005-02-09 | 东方化学工业株式会社 | Luminous organic compound and manufacturing method |
| JP2013203801A (en) * | 2012-03-27 | 2013-10-07 | Toyo Seikan Co Ltd | Ink composition for inkjet printing viewable by ultraviolet irradiation, and container with hidden mark |
| CN103223795A (en) * | 2012-10-24 | 2013-07-31 | 北京印刷学院 | Printing and imaging method with additive color process |
| CN103232750A (en) * | 2012-10-24 | 2013-08-07 | 北京印刷学院 | Ultraviolet-excited red fluorescent ink jet ink used in additive method printing imaging, and preparation method thereof |
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