CN112898828A - Stress luminous anti-counterfeiting ink, preparation method and use method - Google Patents
Stress luminous anti-counterfeiting ink, preparation method and use method Download PDFInfo
- Publication number
- CN112898828A CN112898828A CN202110052492.9A CN202110052492A CN112898828A CN 112898828 A CN112898828 A CN 112898828A CN 202110052492 A CN202110052492 A CN 202110052492A CN 112898828 A CN112898828 A CN 112898828A
- Authority
- CN
- China
- Prior art keywords
- stress
- ink
- parts
- information
- hidden
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000000034 method Methods 0.000 title claims abstract description 31
- 238000002360 preparation method Methods 0.000 title abstract description 7
- 239000000463 material Substances 0.000 claims abstract description 32
- 239000000049 pigment Substances 0.000 claims abstract description 26
- 229920005749 polyurethane resin Polymers 0.000 claims abstract description 19
- 239000003125 aqueous solvent Substances 0.000 claims abstract description 18
- 239000004970 Chain extender Substances 0.000 claims abstract description 14
- 239000012752 auxiliary agent Substances 0.000 claims abstract description 14
- 239000003085 diluting agent Substances 0.000 claims abstract description 9
- 238000011049 filling Methods 0.000 claims abstract description 4
- 238000004020 luminiscence type Methods 0.000 claims description 44
- 238000007639 printing Methods 0.000 claims description 28
- 238000002955 isolation Methods 0.000 claims description 19
- 239000000945 filler Substances 0.000 claims description 18
- 238000000576 coating method Methods 0.000 claims description 16
- 239000011248 coating agent Substances 0.000 claims description 15
- 239000000839 emulsion Substances 0.000 claims description 15
- 238000003756 stirring Methods 0.000 claims description 15
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 14
- 230000001680 brushing effect Effects 0.000 claims description 12
- 229920002635 polyurethane Polymers 0.000 claims description 8
- 239000004814 polyurethane Substances 0.000 claims description 8
- -1 rare earth ions Chemical class 0.000 claims description 8
- 239000005056 polyisocyanate Substances 0.000 claims description 7
- 229920001228 polyisocyanate Polymers 0.000 claims description 7
- 229920005862 polyol Polymers 0.000 claims description 7
- 150000003077 polyols Chemical class 0.000 claims description 7
- 229910052761 rare earth metal Inorganic materials 0.000 claims description 7
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 claims description 6
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims description 6
- TZCXTZWJZNENPQ-UHFFFAOYSA-L barium sulfate Chemical compound [Ba+2].[O-]S([O-])(=O)=O TZCXTZWJZNENPQ-UHFFFAOYSA-L 0.000 claims description 6
- 239000000203 mixture Substances 0.000 claims description 6
- 230000002265 prevention Effects 0.000 claims description 6
- 239000002518 antifoaming agent Substances 0.000 claims description 3
- 229910000019 calcium carbonate Inorganic materials 0.000 claims description 3
- 150000001875 compounds Chemical class 0.000 claims description 3
- 229920001577 copolymer Polymers 0.000 claims description 3
- 239000002270 dispersing agent Substances 0.000 claims description 3
- 238000009826 distribution Methods 0.000 claims description 3
- ZLNQQNXFFQJAID-UHFFFAOYSA-L magnesium carbonate Chemical compound [Mg+2].[O-]C([O-])=O ZLNQQNXFFQJAID-UHFFFAOYSA-L 0.000 claims description 3
- 229910000021 magnesium carbonate Inorganic materials 0.000 claims description 3
- 239000001095 magnesium carbonate Substances 0.000 claims description 3
- 239000011159 matrix material Substances 0.000 claims description 3
- 239000002245 particle Substances 0.000 claims description 3
- 229910009112 xH2O Inorganic materials 0.000 claims description 3
- 239000002019 doping agent Substances 0.000 claims description 2
- KCLIFOXATBWLMW-UHFFFAOYSA-M sodium;ethane-1,2-diamine;ethanesulfonate Chemical compound [Na+].NCCN.CCS([O-])(=O)=O KCLIFOXATBWLMW-UHFFFAOYSA-M 0.000 claims description 2
- 239000000976 ink Substances 0.000 description 82
- 239000002904 solvent Substances 0.000 description 9
- 239000006185 dispersion Substances 0.000 description 8
- 238000006243 chemical reaction Methods 0.000 description 6
- 238000010438 heat treatment Methods 0.000 description 6
- 238000010422 painting Methods 0.000 description 6
- 230000008569 process Effects 0.000 description 6
- 230000008859 change Effects 0.000 description 5
- 230000000694 effects Effects 0.000 description 5
- 229920001730 Moisture cure polyurethane Polymers 0.000 description 4
- 239000013078 crystal Substances 0.000 description 4
- 229910021580 Cobalt(II) chloride Inorganic materials 0.000 description 3
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 description 3
- 230000036760 body temperature Effects 0.000 description 3
- 239000003086 colorant Substances 0.000 description 3
- 238000001816 cooling Methods 0.000 description 3
- 229910001385 heavy metal Inorganic materials 0.000 description 3
- 150000002500 ions Chemical class 0.000 description 3
- 238000002156 mixing Methods 0.000 description 3
- 239000000843 powder Substances 0.000 description 3
- 229910052709 silver Inorganic materials 0.000 description 3
- 239000004332 silver Substances 0.000 description 3
- 229910021586 Nickel(II) chloride Inorganic materials 0.000 description 2
- 230000009471 action Effects 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- 238000001035 drying Methods 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- QMMRZOWCJAIUJA-UHFFFAOYSA-L nickel dichloride Chemical compound Cl[Ni]Cl QMMRZOWCJAIUJA-UHFFFAOYSA-L 0.000 description 2
- 229920005989 resin Polymers 0.000 description 2
- 239000011347 resin Substances 0.000 description 2
- 238000007790 scraping Methods 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- BJZYYSAMLOBSDY-QMMMGPOBSA-N (2s)-2-butoxybutan-1-ol Chemical compound CCCCO[C@@H](CC)CO BJZYYSAMLOBSDY-QMMMGPOBSA-N 0.000 description 1
- NTZRDKVFLPLTPU-UHFFFAOYSA-N CC[Na] Chemical compound CC[Na] NTZRDKVFLPLTPU-UHFFFAOYSA-N 0.000 description 1
- PIICEJLVQHRZGT-UHFFFAOYSA-N Ethylenediamine Chemical compound NCCN PIICEJLVQHRZGT-UHFFFAOYSA-N 0.000 description 1
- 239000004698 Polyethylene Substances 0.000 description 1
- 239000011230 binding agent Substances 0.000 description 1
- 239000000084 colloidal system Substances 0.000 description 1
- 238000004132 cross linking Methods 0.000 description 1
- 238000002845 discoloration Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 230000036541 health Effects 0.000 description 1
- 238000007641 inkjet printing Methods 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 229920000573 polyethylene Polymers 0.000 description 1
- 229920001451 polypropylene glycol Polymers 0.000 description 1
- 230000036632 reaction speed Effects 0.000 description 1
- 238000006748 scratching Methods 0.000 description 1
- 230000002393 scratching effect Effects 0.000 description 1
- BDHFUVZGWQCTTF-UHFFFAOYSA-M sulfonate Chemical compound [O-]S(=O)=O BDHFUVZGWQCTTF-UHFFFAOYSA-M 0.000 description 1
Images
Classifications
-
- 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41M—PRINTING, DUPLICATING, MARKING, OR COPYING PROCESSES; COLOUR PRINTING
- B41M3/00—Printing processes to produce particular kinds of printed work, e.g. patterns
- B41M3/14—Security printing
-
- 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
- C09D11/03—Printing inks characterised by features other than the chemical nature of the binder
- C09D11/037—Printing inks characterised by features other than the chemical nature of the binder characterised by the pigment
-
- 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
Landscapes
- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Wood Science & Technology (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Inks, Pencil-Leads, Or Crayons (AREA)
Abstract
The invention discloses a stress luminous anti-counterfeiting ink, a preparation method and a use method thereof, wherein the stress luminous anti-counterfeiting ink comprises the following components: a stress luminescent material; and a diluent; the diluent comprises: an aqueous polyurethane resin; a hydrophilic chain extender; an aqueous solvent; a thermochromic pigment; an auxiliary agent; and (4) filling. The stress luminous type anti-counterfeiting ink can solve the problems that in the prior art, the stress luminous type anti-counterfeiting ink is poor in anti-counterfeiting force, low in safety coefficient and unstable and low in product quality.
Description
Technical Field
The invention relates to the technical field of printing ink, in particular to stress luminous anti-counterfeiting printing ink, a preparation method and a use method.
Background
Tax bills, securities, lottery tickets, scratch products and the like are common printed matters in life, and play an important role in national tax, welfare and economic development. In printed matter such as tax bills, in order to conceal information such as a prize-exchange number or a two-dimensional code, it is common to print opaque scratch-off silver paste ink on an encrypted area, to hide the concealed information by the ink, and to reveal the concealed information when the bill is scratched off by a consumer. In recent years, with the rapid development of the overall level of domestic printing technology, some lawless persons have tried to forge such printed matters with high value to obtain illegal benefits, and therefore, improvement of security of anti-counterfeit products is becoming an urgent problem to be solved.
Silver paste inks currently used for the scratch card type have been in use on the market for many years, exposing a number of problems to be solved: on one hand, the ink basically has no anti-counterfeiting function, can be easily restored by printing again after being scraped for the first time, and a common user cannot distinguish whether the hidden information is stolen or not; on the other hand, the traditional scraping silver is usually printed by solvent-based ink, so that a certain degree of solvent residue exists, the body health is harmed, heavy metal components are contained, and the solvent residue is left in nail gaps during hand scraping, so that a great safety problem exists; in addition, the metal components have high density and cannot be well dispersed in the printing ink, so that the problem of uneven texture after printing is caused, and the printing quality of the product is influenced by easy powder falling.
Therefore, the prior art is in need of further improvement.
Disclosure of Invention
In order to solve the technical problems, the application discloses a stress luminescence type anti-counterfeiting ink, a preparation method and a using method, and can solve the problems that the stress luminescence type anti-counterfeiting ink in the prior art is poor in anti-counterfeiting strength, low in safety coefficient and unstable and low in product quality.
The technical scheme of the invention is as follows:
a stress luminescence type forgery prevention ink, wherein the ink comprises: a stress luminescent material and a diluent; the diluent comprises: an aqueous polyurethane resin; a hydrophilic chain extender; an aqueous solvent; a thermochromic pigment; an auxiliary agent; and (4) filling.
Wherein the stress luminescent material comprises a doped compound; the matrix comprises CsZnOS, and the doped rare earth ions comprise: pr (Pr) of3+、Sm3+、Eu3+、Tb3+、Dy3+、Ho3+。
Wherein, in the stress luminescent material, the mass fraction of the doped rare earth ions is 8-10%.
Wherein the aqueous polyurethane resin comprises a copolymer of a polyisocyanate and an oligomeric polyol; the hydrophilic chain extender comprises ethylenediamine ethanesulfonic acid sodium salt; the aqueous solvent comprises a mixture of water and ethanol; the thermochromic pigment includes CoCl2·2C6H12N4·xH2O and NiCl2·2C6H12N4·xH2At least one of O; the auxiliary agent comprises an aqueous defoaming agent, an aqueous dispersing agent and a pH regulator; the filler includes at least one of colloidal calcium carbonate, magnesium carbonate, and barium sulfate. Wherein the particle size distribution of the filler is 0.03-0.15 μm.
Wherein the ink comprises the following components in parts by mass: 2-10 parts of stress luminescent material; 25-40 parts of waterborne polyurethane resin; 2-4 parts of a hydrophilic chain extender; 25-40 parts of an aqueous solvent; 15-20 parts of a thermosensitive color-changing pigment; 8-16 parts of an auxiliary agent; 12-25 parts of a filler.
In order to solve the technical problem, the application also discloses a preparation method of the stress luminescence type anti-counterfeiting ink, wherein the method is used for preparing the stress luminescence type anti-counterfeiting ink, and the method comprises the following steps:
providing a waterborne polyurethane emulsion;
and adding a thermosensitive color-changing pigment, a stress luminescent material and a filler into the waterborne polyurethane emulsion, and stirring for a certain time at a certain rotating speed to obtain the stress luminescent type anti-counterfeiting ink.
In order to solve the technical problem, the application also discloses a method for using the stress luminescence type anti-counterfeiting ink, wherein the stress luminescence type anti-counterfeiting ink is the stress luminescence type anti-counterfeiting ink, and the method comprises the following steps:
providing a printing carrier comprising at least a first surface and a second surface arranged opposite to each other
Printing information to be hidden on a target area of the first surface;
and coating the stress luminous anti-counterfeiting ink on the information to be hidden so as to cover the information to be hidden.
Wherein the use method further comprises:
brushing anti-light-transmitting ink on the second surface, wherein the brushing area of the anti-light-transmitting ink at least corresponds to the position of the information to be hidden so as to keep the information to be hidden secret;
before the stress luminescence type anti-counterfeiting ink is coated on the information to be hidden, the using method further comprises the following steps:
and brushing isolation gloss oil on the first surface, wherein the isolation gloss oil at least covers the information to be hidden.
Wherein the coating thickness of the stress luminescence type anti-counterfeiting ink is 20-40 μm.
Different from the prior art, the stress luminous anti-counterfeiting ink adopts the thermosensitive color-changing pigment, can generate a color-changing phenomenon by contacting with the body temperature of fingers or heating the outside to 30-35 ℃, and can recover after recovering to room temperature; due to the adoption of the stress luminescent material, the luminescent material can emit light under the action of stress and friction, and has extremely high anti-counterfeiting identification effect. In addition, the ink adopts a water-based environment-friendly formula, does not volatilize harmful substances, has no solvent residue, does not contain heavy metal powder, and has good printability, high production efficiency and stable product quality.
Drawings
FIG. 1 is a schematic flow chart of a first embodiment of a method for preparing a stress luminescence type anti-counterfeiting ink according to the invention;
FIG. 2 is a schematic flow chart of a first embodiment of a method for using the stress luminescence type anti-counterfeiting ink according to the invention.
Detailed Description
The invention is described in further detail below with reference to the accompanying examples.
The stress luminescent material is an energy conversion material capable of converting a force signal into an optical signal, and releases energy to the outside in a form of luminescence after mechanical stress (such as pressure, friction and the like) is applied to the outside. However, the material has higher requirements on the condition of generating luminescence and fewer products which can be actually combined with the material, thereby limiting the application scenes of the material.
The application discloses stress luminescence type anti-counterfeiting ink, wherein, printing ink includes: a stress luminescent material and a diluent; the diluent comprises: an aqueous polyurethane resin; a hydrophilic chain extender; an aqueous solvent; a thermochromic pigment; an auxiliary agent; and (4) filling.
In the embodiment, as the stress luminous anti-counterfeiting ink adopts the thermosensitive color-changing pigment, the color-changing phenomenon can be generated by contacting with the finger body temperature or heating the finger body temperature to 30-35 ℃, and the stress luminous anti-counterfeiting ink can be recovered after being recovered to the room temperature; due to the adoption of the stress luminescent material, the luminescent material can emit light under the action of stress and friction, and has extremely high anti-counterfeiting identification effect. In addition, the ink adopts a water-based environment-friendly formula, does not volatilize harmful substances, has no solvent residue, does not contain heavy metal powder, and has good printability, high production efficiency and stable product quality.
In one embodiment, the stressor emitting material comprises a dopant type compound; the matrix comprises CsZnOS, and the doped rare earth ions comprise: pr (Pr) of3+、Sm3+、Eu3+、Tb3+、Dy3+、Ho3+. It is understood that different rare earth ions can generate different colors, and the selection of the doped ions can be determined according to the colors to be presented, and thus is not particularly limited. E.g., CsZnOS: Pr3+Can be green, CsZnOS: Sm3+It will appear orange.
Further, in the stress luminescent material, the mass fraction of the doped rare earth ions is 8-10%, such as 8%, 9% or 10%, and the mass fraction of the doped ions is related to the luminescent intensity of the stress luminescent type anti-counterfeiting ink, and within a certain range, the luminescent intensity increases with the increase of the mass fraction of the doped ions.
In one embodiment, the stress luminescence type anti-counterfeiting ink adopts an environment-friendly aqueous solvent as a diluent, and the aqueous polyurethane resin comprises a copolymer of polyisocyanate (such as TDI, MDI, PAPI) and oligomeric polyol (such as PEG, PPG, PTMG) for bearing and dispersing pigment; the hydrophilic chain extender comprises ethylene diamine ethyl sodium sulfonate, and hydrophilic groups are introduced into a polyurethane main chain, so that the water solubility of the polyurethane resin is improved, and the crosslinking reaction speed is accelerated; the aqueous solvent comprises a mixture of water and ethanol and is used for improving the drying speed of the ink; the auxiliary agent comprises a water-based defoaming agent, a water-based dispersing agent, a pH regulator and the like; the filler comprises at least one of colloid calcium carbonate, magnesium carbonate and barium sulfate and is used for improving the drying speed and the covering power of the ink; wherein the filler has a particle size distribution of 0.03 to 0.15 μm, such as 0.03 μm, 0.09 μm or 0.15 μm. Still further, the filler may further include a polar polyethylene wax for improving ink scratch resistance.
The thermosensitive color-changing pigment is a pigment which can change from one color to another color when the temperature reaches a certain condition; in this embodiment, the thermochromic pigment comprises CoCl2·2C6H12N4·xH2O and NiCl2·2C6H12N4·xH2At least one of O; the mechanism of color change is as follows: the molecular structure contains a plurality of crystal water, the color change can be caused by the loss of coordinated water molecules, the color change can be caused by the loss of the crystal water during heating, the water molecules are absorbed after the temperature is recovered, and the color is recovered. The material has different colors in molecular configurations containing different numbers of crystal water at normal temperature, and the more the number of the crystal water is, the lower the critical temperature point of the thermosensitive discoloration is, such as: CoCl2·2C6H12N4·12H2O is pink at room temperature (25 c), turns blue when warmed to above 30-35 c, and turns pink again after the temperature returns to room temperature.
In addition, the proportion of the thermosensitive color-changing pigment to the resin can influence the final color-changing temperature of the ink, the thermosensitive color-changing pigment is dispersed in the resin binder, the proportion of the thermosensitive color-changing pigment is increased, the reaction condition can be reduced, the reaction degree is improved, and the color-changing temperature is reduced.
Wherein the ink comprises the following components in parts by mass: 2-10 parts of stress luminescent material, such as 2 parts, 6 parts or 10 parts; 25-40 parts of waterborne polyurethane resin, such as 25 parts, 33 parts or 40 parts; 2-4 parts of hydrophilic chain extender, such as 2 parts, 3 parts or 4 parts and the like; 25-40 parts of aqueous solvent, such as 25 parts, 33 parts or 40 parts; 15-20 parts of thermosensitive color-changing pigment, such as 15 parts, 18 parts or 20 parts; 8-16 parts of auxiliary agent, such as 8 parts, 12 parts or 16 parts; 12-25 parts of filler, such as 12 parts, 18 parts or 25 parts.
In order to solve the above technical problem, the present application further discloses a method for preparing a stress luminescence type anti-counterfeiting ink, please refer to fig. 1, wherein the method is used for preparing the stress luminescence type anti-counterfeiting ink, and the method comprises the steps of:
s10, providing the aqueous polyurethane emulsion.
In the step S10, polyisocyanate and oligomeric polyol are mixed, stirred by a high-speed dispersion machine at a speed of 400r/min, heated to 70-90 ℃ for reaction for 1.5-2.5 hours, cooled to 60 ℃, added with a hydrophilic chain extender and continuously reacted for 40-80 minutes to obtain a waterborne polyurethane prepolymer, continuously cooled to 25-35 ℃, added with a waterborne solvent and continuously stirred to obtain the waterborne polyurethane resin emulsion.
And S20, adding a thermosensitive color-changing pigment, a stress luminescent material and a filler into the waterborne polyurethane emulsion, and stirring for a certain time at a certain rotating speed to obtain the stress luminescent type anti-counterfeiting ink.
In the step S20, the thermochromic pigment, the stress luminescent material and the filler are added into the aqueous polyurethane resin emulsion, and the mixture is stirred for 20-40min at a speed of 1000-1400r/min by using a high-speed dispersion machine.
Further, after the thermochromic pigment, the stress luminescent material and the filler are added into the aqueous polyurethane emulsion, the auxiliary agent can be continuously added, the pH value is adjusted to 8.5-9.5, the mixture is stirred for 40-80 minutes at the speed of 600-900r/min, the aqueous solvent is continuously added in the process, the viscosity of the mixture is adjusted to 30-35s (Chuien 4 cup, 25 ℃), and the stress luminescent anti-counterfeiting ink is obtained.
In order to solve the above technical problem, the present application further discloses a method for using a stress luminescence type anti-counterfeit ink, please refer to fig. 2, wherein the stress luminescence type anti-counterfeit ink comprises the following steps:
s100, providing a printing carrier, wherein the printing carrier at least comprises a first surface and a second surface which are oppositely arranged.
In step S100, the printing medium is any medium on which anti-counterfeit information needs to be provided, including but not limited to tax receipts, securities, lottery tickets, scratch products, and the like. The first surface and the second surface are correspondingly disposed, and the first surface may be a plane or a curved surface, which is not specifically limited herein. Further, step S100 includes printing graphic information, such as security information, lottery information or scratch-off product information, on the printing carrier, wherein the graphic information may be printed on the first surface and/or the second surface.
S200, printing information to be hidden on the target area of the first surface.
In the step S200, a target area is set on the first surface, the target area may be a scratch-off area of the print carrier, and the information to be hidden may be printed by inkjet printing.
S300, coating the stress luminous anti-counterfeiting ink on the information to be hidden so as to cover the information to be hidden.
In the step S300, the stress luminescence type anti-counterfeit ink may be coated in a gravure manner, a silk screen manner, or the like; the coating range may be larger than the area of the target region or smaller than the area of the target region as long as the hidden information can be covered. Further, in order to simplify the difficulty of the coating process, the coating range of the stress luminescence type anti-counterfeiting ink is the target area; and in order to reduce the cost, the stress luminescence type anti-counterfeiting ink only covers the target area. Similarly, the coating thickness can be selected according to actual conditions, as long as the hidden information can be effectively covered. In one embodiment, the stress luminescence type anti-counterfeiting ink is coated to a thickness of 20-40 μm, such as 20 μm, 30 μm or 40 μm, and can effectively cover the information to be hidden.
In another embodiment, before the information to be hidden is coated with the stress luminescence type anti-counterfeiting ink, the method further comprises the following steps: and brushing isolation gloss oil on the first surface, wherein the isolation gloss oil at least covers the information to be hidden. The isolation gloss oil can protect hidden information and improve scratchability, and is favorable for popularization and application of the stress luminous anti-counterfeiting ink. Further, the coverage area of the isolation gloss oil may be greater than, equal to, or smaller than the area of the target region, as long as the coverage area can cover the information to be hidden, so that no specific limitation is made herein. At this time, the stress luminescence type anti-counterfeiting ink is covered on the isolation gloss oil as long as the hidden information can be covered. In order to facilitate operation and improve coating efficiency, the coating areas of the isolation gloss oil and the stress luminescence type anti-counterfeiting ink just cover the target area.
Still further, the method further comprises: brushing anti-light-transmitting ink on the second surface, wherein the brushing area of the anti-light-transmitting ink at least corresponds to the position of the information to be hidden so as to keep the information to be hidden secret; this step may be performed before or after any step after the preparation of the step S100. In one embodiment, this step is performed before step S200 described above.
The technical solution of the present invention is explained in detail by the following specific examples:
example 1
Mixing polyisocyanate and oligomeric polyol, stirring with a high-speed dispersion machine at 400r/min, heating to 90 ℃ for reaction for 1.5 hours, cooling to 60 ℃, adding a hydrophilic chain extender, continuing to react for 80 minutes to obtain a waterborne polyurethane prepolymer, continuing to cool to 25 ℃, adding a waterborne solvent, and continuing to stir to obtain the waterborne polyurethane resin emulsion 1.
Adding the thermosensitive color-changing pigment, the stress luminescent material and the filler into the waterborne polyurethane resin emulsion 1, and stirring for 20min at the speed of 1400r/min by using a high-speed dispersion machine.
And then, continuously adding the auxiliary agent, adjusting the pH value to 9.5, stirring for 80 minutes at 600r/min, continuously adding the aqueous solvent in the process, and adjusting the viscosity of the aqueous solvent to 30s (Chuien 4# cup, 25 ℃) to obtain the stress luminescence type anti-counterfeiting ink 1.
Painting a position, corresponding to the target area of the first surface, on the second surface of the printing carrier; painting light-proof printing ink on the target area of the first surface; printing information to be hidden on a target area of the first surface. And brushing isolation gloss oil on the first surface, wherein the isolation gloss oil at least covers the information to be hidden. And coating the stress luminous anti-counterfeiting ink 1 on the isolation gloss oil layer to cover the information to be hidden, wherein the coating thickness of the stress luminous anti-counterfeiting ink is 20 micrometers, and thus obtaining the printed matter 1 with the anti-counterfeiting information.
Example 2
Preparing stress luminescence type anti-counterfeiting ink:
mixing polyisocyanate and oligomeric polyol, stirring with a high-speed dispersion machine at 500r/min, heating to 80 ℃ for reaction for 2 hours, cooling to 60 ℃, adding a hydrophilic chain extender, continuing to react for 60 minutes to obtain a waterborne polyurethane prepolymer, continuing to cool to 30 ℃, adding a waterborne solvent, and continuing to stir to obtain the waterborne polyurethane resin emulsion 2.
Adding the thermosensitive color-changing pigment, the stress luminescent material and the filler into the waterborne polyurethane resin emulsion 2, and stirring for 30min at the speed of 1200r/min by using a high-speed dispersion machine.
And then, continuously adding the auxiliary agent, adjusting the pH value to 9, stirring for 60 minutes at 750r/min, continuously adding the aqueous solvent in the process, and adjusting the viscosity of the aqueous solvent to 30s (Chuien 4# cup, 25 ℃) to obtain the stress luminescence type anti-counterfeiting ink 2.
Painting a position, corresponding to the target area of the first surface, on the second surface of the printing carrier; painting light-proof printing ink on the target area of the first surface; printing information to be hidden on a target area of the first surface. And brushing isolation gloss oil on the first surface, wherein the isolation gloss oil at least covers the information to be hidden. And coating the stress luminous anti-counterfeiting ink 2 on the isolation gloss oil layer to cover the information to be hidden, wherein the coating thickness of the stress luminous anti-counterfeiting ink is 40 mu m, and thus the printed matter 2 with the anti-counterfeiting information is obtained.
Example 3
Mixing polyisocyanate and oligomeric polyol, stirring with a high-speed dispersion machine at 600r/min, heating to 70 ℃ for reacting for 2.5 hours, cooling to 60 ℃, adding a hydrophilic chain extender, continuing to react for 40 minutes to obtain a waterborne polyurethane prepolymer, continuing to cool to 35 ℃, adding a waterborne solvent, and continuing to stir to obtain the waterborne polyurethane resin emulsion 3.
Adding the thermosensitive color-changing pigment, the stress luminescent material and the filler into the waterborne polyurethane resin emulsion 3, and stirring for 40min at the speed of 1400r/min by using a high-speed dispersion machine.
And then, continuously adding the auxiliary agent, adjusting the pH value to 8.5, stirring at 900r/min for 40 minutes, continuously adding the aqueous solvent in the process, and adjusting the viscosity of the aqueous solvent to 35s (Chuien 4# cup, 25 ℃) to obtain the stress luminescence type anti-counterfeiting ink 3.
Painting a position, corresponding to the target area of the first surface, on the second surface of the printing carrier; painting light-proof printing ink on the target area of the first surface; printing information to be hidden on a target area of the first surface. And brushing isolation gloss oil on the first surface, wherein the isolation gloss oil at least covers the information to be hidden. And coating the stress luminous anti-counterfeiting ink 3 on the isolation gloss oil layer to cover the information to be hidden, wherein the coating thickness of the stress luminous anti-counterfeiting ink is 30 mu m, and obtaining the printed matter 3 with the anti-counterfeiting information.
TABLE 1 comparison table of the performance of the stress luminescence type anti-counterfeiting ink for anti-counterfeiting products
As can be seen from the table 1, the self printing ink is used in anti-counterfeiting products, and has the advantages of strong anti-counterfeiting strength, high safety factor and stable and reliable product quality.
In summary, printed matters such as bills and scratch cards printed by the ink can be touched by fingers of a consumer before the stress luminescence type anti-counterfeiting ink in the hidden area is scratched off, when the temperature of the stress luminescence type anti-counterfeiting ink rises to be above 30-35 ℃, the ink can generate obvious color change effect (the temperature and the color can be adjusted), and in the process of scratching the stress luminescence type anti-counterfeiting ink, the stress luminescence material in the ink emits fluorescence (the fluorescence color can be changed) due to the effects of pressure and friction, so that the consumer is informed of authenticity. Because the ink has extremely high imitation difficulty, once the ink layer is scraped, the ink cannot be restored again, and the anti-counterfeiting effect is strong.
The above description is only an embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications of equivalent structures and equivalent processes performed by the present specification and drawings, or directly or indirectly applied to other related technical fields, are included in the scope of the present invention.
Claims (10)
1. A stress luminescence type forgery prevention ink, comprising:
a stress luminescent material; and
a diluent;
the diluent comprises:
an aqueous polyurethane resin;
a hydrophilic chain extender;
an aqueous solvent;
a thermochromic pigment;
an auxiliary agent;
and (4) filling.
2. The luminescent security ink according to claim 1, wherein the luminescent material comprises a dopant compound; wherein the matrix comprises CsZnOS, and the doped rare earth ions comprise: pr3+, Sm3+, Eu3+, Tb3+, Dy3+ and Ho3 +.
3. The stress luminescence type security ink according to claim 2, wherein the mass fraction of the doped rare earth ions in the stress luminescent material is 8-10%.
4. The luminescent forgery-preventing ink as claimed in claim 1, wherein,
the aqueous polyurethane resin comprises a copolymer of polyisocyanate and oligomeric polyol;
the hydrophilic chain extender comprises ethylenediamine ethanesulfonic acid sodium salt;
the aqueous solvent comprises a mixture of water and ethanol;
the thermochromic pigment comprises at least one of CoCl 2.2C 6H12N 4. xH2O and NiCl 2.2C 6H12N 4. xH 2O;
the auxiliary agent comprises an aqueous defoaming agent, an aqueous dispersing agent and a pH regulator;
the filler includes at least one of colloidal calcium carbonate, magnesium carbonate, and barium sulfate.
5. The stress luminescence type forgery prevention ink according to claim 1, wherein the particle size distribution of the filler is 0.03 to 0.15 μm.
6. The stress luminescence type forgery prevention ink according to claim 1, wherein the ink comprises, in parts by mass:
2-10 parts of stress luminescent material;
25-40 parts of waterborne polyurethane resin;
2-4 parts of a hydrophilic chain extender;
25-40 parts of an aqueous solvent;
15-20 parts of a thermosensitive color-changing pigment;
8-16 parts of an auxiliary agent;
12-25 parts of a filler.
7. A method for preparing a stress luminescence type forgery prevention ink according to any one of claims 1 to 6, comprising:
providing a waterborne polyurethane emulsion;
and adding a thermosensitive color-changing pigment, a stress luminescent material and a filler into the waterborne polyurethane emulsion, and stirring for a certain time at a certain rotating speed to obtain the stress luminescent type anti-counterfeiting ink.
8. A method of using a stress luminescence type forgery prevention ink according to any one of claims 1 to 7, the method comprising:
providing a printing carrier comprising at least a first surface and a second surface arranged opposite to each other
Printing information to be hidden on a target area of the first surface;
and coating the stress luminous anti-counterfeiting ink on the information to be hidden so as to cover the information to be hidden.
9. The method of use of claim 8, further comprising:
brushing anti-light-transmitting ink on the second surface, wherein the brushing area of the anti-light-transmitting ink at least corresponds to the position of the information to be hidden so as to keep the information to be hidden secret;
before the stress luminescence type anti-counterfeiting ink is coated on the information to be hidden, the method further comprises the following steps:
and brushing isolation gloss oil on the first surface, wherein the isolation gloss oil at least covers the information to be hidden.
10. The use method according to claim 8, wherein the stress luminescence type security ink is applied to a thickness of 20 to 40 μm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110052492.9A CN112898828A (en) | 2021-01-15 | 2021-01-15 | Stress luminous anti-counterfeiting ink, preparation method and use method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110052492.9A CN112898828A (en) | 2021-01-15 | 2021-01-15 | Stress luminous anti-counterfeiting ink, preparation method and use method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112898828A true CN112898828A (en) | 2021-06-04 |
Family
ID=76113652
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110052492.9A Pending CN112898828A (en) | 2021-01-15 | 2021-01-15 | Stress luminous anti-counterfeiting ink, preparation method and use method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112898828A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114276719A (en) * | 2021-11-19 | 2022-04-05 | 苏州美盈森环保科技有限公司 | Mechanoluminescence anti-counterfeiting ink, preparation method and application |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103144461A (en) * | 2013-03-05 | 2013-06-12 | 海南亚元防伪技术研究所 | Digital spray-printed scratch card and spray printing system thereof |
| CN107053883A (en) * | 2017-04-20 | 2017-08-18 | 东莞当纳利印刷有限公司 | The typography of environment-friendly and green type paper class product |
| CN110930862A (en) * | 2019-12-25 | 2020-03-27 | 深圳市光科全息技术有限公司 | Novel anti-counterfeiting film |
| CN112063237A (en) * | 2020-09-15 | 2020-12-11 | 深圳大学 | Label-free anti-counterfeiting material based on elastic stress luminescence, preparation method and anti-counterfeiting layer |
-
2021
- 2021-01-15 CN CN202110052492.9A patent/CN112898828A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103144461A (en) * | 2013-03-05 | 2013-06-12 | 海南亚元防伪技术研究所 | Digital spray-printed scratch card and spray printing system thereof |
| CN107053883A (en) * | 2017-04-20 | 2017-08-18 | 东莞当纳利印刷有限公司 | The typography of environment-friendly and green type paper class product |
| CN110930862A (en) * | 2019-12-25 | 2020-03-27 | 深圳市光科全息技术有限公司 | Novel anti-counterfeiting film |
| CN112063237A (en) * | 2020-09-15 | 2020-12-11 | 深圳大学 | Label-free anti-counterfeiting material based on elastic stress luminescence, preparation method and anti-counterfeiting layer |
Non-Patent Citations (6)
| Title |
|---|
| 中国化学会: "《化学学科发展报告》", 31 March 2018, 中国科学技术出版社 * |
| 孙履厚: "《精细化工新材料与技术》", 30 April 1998, 中国石化出版社 * |
| 李正军等: "《皮革涂饰剂与整饰技术》", 化学工业出版社 * |
| 李路海: "《印刷油墨着色剂》", 30 November 2008, 印刷工业出版社 * |
| 柴春鹏等: "《高分子合成材料学》", 31 January 2019, 北京理工大学出版社 * |
| 梁慕城: "《新中国纸币知识图鉴》", 31 October 2011, 中国钱币收藏研究协会 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114276719A (en) * | 2021-11-19 | 2022-04-05 | 苏州美盈森环保科技有限公司 | Mechanoluminescence anti-counterfeiting ink, preparation method and application |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| Gao et al. | Stretchable, flexible, and transparent SrAl2O4: Eu2+@ TPU ultraviolet stimulated anti-counterfeiting film | |
| CN103756403B (en) | A kind of Noctilucence printing ink | |
| US8053494B2 (en) | Invisible ink and scratch pad | |
| CN108795428B (en) | Anti-counterfeiting material and preparation method and application thereof | |
| US5478381A (en) | Ink composition | |
| CN111164158A (en) | Pearlescent pigment for security containing organic or inorganic phosphor | |
| JP2008115225A (en) | Luminescent ink and use of the same | |
| WO2008115206A2 (en) | Security pigments and the process of making thereof | |
| CN112210248B (en) | Water-based fluorescent ink and preparation method and application thereof | |
| CN112898828A (en) | Stress luminous anti-counterfeiting ink, preparation method and use method | |
| CN108912843A (en) | Infrared or Fluorescent Falsification-resistant Ink of one kind and preparation method thereof | |
| CN108460444A (en) | A kind of inverse thermochromic double exposure double-layer showing Quick Response Code and preparation method thereof | |
| CN110452580A (en) | A kind of anti-forgery ink and preparation method thereof with particular spectral lines feature | |
| US20200377748A1 (en) | Ink composition, printed matter, and authenticity determination method | |
| CN101891988A (en) | Ultraviolet curing magnetic ink and application thereof | |
| CN102977683A (en) | UV photoluminescence ink | |
| Bhagya et al. | Water-based flexographic ink using chalcones exhibiting aggregation-induced enhanced emission for anti-counterfeit applications | |
| Bhagya et al. | Water-based invisible green flexographic ink for anti-counterfeit applications | |
| JP3491101B2 (en) | Ink composition and printed matter using this ink composition | |
| CN110577769A (en) | Water-based up-conversion fluorescent ink-jet ink and preparation method and application thereof | |
| CA2638581A1 (en) | Improved invisible ink and scratch pad | |
| JPWO2019053962A1 (en) | Ink composition and printed matter | |
| EP3529321A1 (en) | Security printing inks for inkjet printers and method of manufacture | |
| JP2003288019A (en) | Invisible information carrier and invisible information carrying laminated body | |
| CN108250843B (en) | Water-based rare earth up-conversion fluorescent ink, preparation method and anti-counterfeiting application thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20210604 |