CN1186408C - Erase color variable ink - Google Patents
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- CN1186408C CN1186408C CN 02146591 CN02146591A CN1186408C CN 1186408 C CN1186408 C CN 1186408C CN 02146591 CN02146591 CN 02146591 CN 02146591 A CN02146591 A CN 02146591A CN 1186408 C CN1186408 C CN 1186408C
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- ink
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Abstract
The present invention relates to printing ink with color variation during erasing, which comprises rubbing allochroic materials. Black marks of the present invention can be rubbed into red under certain strength. The present invention has application forms such as offset printing, letterpress printing, gravure, ink jet printing, etc. As a popular anti-counterfeit characteristic, the present invention can be applied to various securities and trademarks and can be in patterns such as solid, lines, codes, etc. When the authenticity of the present invention is needed to be identified, the black marks of the printing ink with color variation during erasing are rubbed with white paper, and the marks become red; as a result, the authenticity can be judged conveniently. Meanwhile, the present invention has the characteristic of full impregnation of a near infrared region. Moreover, other anti-counterfeit materials can be doped into the printing ink with color variation during erasing as required to be matched with other anti-counterfeit characteristics such as the addition of an ultraviolet fluorescence characteristic or the addition of a magnetic property detecting function; as a result, the anti-counterfeit level is improved under the condition of no influence on printing or use, and counterfeit difficulty is enlarged.
Description
Technical field
The present invention relates to a kind of anti-forgery ink, the wiping variable color printing ink of particularly a kind of its marking variable color under certain strength friction.
Background technology
Anti-forgery ink is used for the printing of Valued Securities such as check, banknote and trade mark card card more, prevents to alter and forge.Anti-forgery ink has a plurality of kinds at present, for example magnetic ink, fluorescent ink, safety ink, temperature sensitive ink, OVI printing ink and wiping variable color printing ink etc.The principle of wherein wiping variable color printing ink is the microcapsule that add special friction off-color material or contain electrochromic substance in printing ink, when using certain instrument (for example white paper, cardboard, coin or nail etc.) to rub or pushing, colour-change just takes place in the marking of this kind ink printing, discerns the false from the genuine with this.As public's anti-counterfeiting characteristic, wipe variable color printing ink and can be used for Valued Securities and trademark anti-counterfeit.Wiping the variable color ink type at present mainly is microcapsule, is similar to the principle of noncarbon recording paper, and type reacts to each other, mainly be colourlessly to become colouredly, anti-trafficability performance is general, adopts coating method usually, there is certain degree of difficulty in application, and antiforge function is single, forges easily.Chinese patent application 1201213 discloses a kind of wiping variable color printing ink, is a kind of type that reacts to each other, and its principle is CB developer coating and CF chromogenic reagent coating reaction and develop the color, and shortcoming is colourlessly to become colouredly, and patience is poor, and is extremely unstable.The patent application CN1176982 of Gede Anti-fake Tech. Co., Nankai Univ. discloses a kind of molecular distinguishing type solid phase anti-counterfeit tech, also is the type that reacts to each other, and patience is poor, instability, and function singleness.
Summary of the invention
Technology of the present invention is dealt with problems and is: provide a kind of patience good, stable performance, be different from the responsive printing ink of the conventional type that reacts to each other, can stand to produce, the test of process of circulation various factors, the marking is the wiping variable color printing ink of friction ability variable color under certain strength only, and this printing ink is differentiated simple and easy, and the forgery difficulty is big, and printing adaptability is good.
A kind of wiping variable color printing ink comprises the friction off-color material, it is characterized in that: described friction off-color material is to have friction off-color material single active principle, should single active principle change self color under the rubbing effect of certain strength.Described friction off-color material is a kind of perylene compound, in near-infrared region full impregnated mistake, has the binomial anti-counterfeiting characteristic that friction variable color, infrared full impregnated are crossed, and its molecular formula is:
Wherein R is-CH
2-CHOH-CH
3,-CH
2-CH
2-CH
2-CH
2-CH
3,-CH
2-CH
2-CH
2-CH
2-CH
2-OH ,-CH
2-CH
2-OH or
Wipe the 10-50% that off-color material accounts for whole ink by weight, wipe variable color printing ink and can be flexographic ink, letterpress printing ink, shadow and write gravure ink, screen printing ink or ink for ink-jet print.
Above-mentioned wiping variable color printing ink also comprises the Ultraluminescence pigment of the 10%-30% that accounts for above-mentioned ink by weight, and it makes the printing ink of printing, except that having the anti-counterfeiting characteristic that friction variable color, near-infrared region full impregnated cross, and the antiforge function that also has the Ultraluminescence feature.
Above-mentioned wiping variable color printing ink also comprises the light magnetic paint of the 20%-40% that accounts for above-mentioned ink by weight, and the printing-ink that it is made except that having the anti-counterfeiting characteristic that friction variable color, near-infrared region full impregnated cross, also has the antiforge function of magnetic characteristic.
One of technology implementation scheme of the present invention is: a kind of wiping variable color flexographic ink, comprise following component (weight percent): friction off-color material 15%-50%, Synolac (oil content 70) 10%-30%, resol oil 20%-40%, pearl filler 10%-30%, siccative 0.5%-2%, high-boiling point kerosene 1%-4%, with above-mentioned substance in proportion after the weighing, in mixing tank, stirred 20-30 minute, pre-dispersed, on three roller ink grinding mills, be rolled then, make it to reach flexographic ink utilisation technology index (printing ink fineness≤15 micron, degree of mobilization is 28-35mm), be and wipe the variable color flexographic ink, it is imprinted as blackish green, can be changed into redness with white paper friction under certain strength, and in near-infrared region full impregnated mistake.
Two of technology implementation scheme of the present invention is: a kind of wiping variable color letterpress printing ink, its content and component following (weight percent): friction off-color material 10%-40%, Synolac (oil content 70) 15%-40%, stand oil (No. 6) 5%-20%, gummy oil 10%-30%, pearl filler 10%-30%, siccative 0.5%-2%, high-boiling point kerosene 0.5%-3% in proportion after the weighing, stirs above-mentioned substance 20-30 minute in mixing tank, pre-dispersed, on three roller ink grinding mills, be rolled then, make it to reach letterpress printing ink utilisation technology index (printing ink fineness≤15 micron, degree of mobilization is 25-29mm), be and wipe variable color letterpress printing ink finished product, it is imprinted as black, can be changed into redness with white paper friction under certain strength, and in near-infrared region full impregnated mistake.
Three of technology implementation scheme of the present invention is: a kind of wiping variable color shadow is write gravure ink, its content and component following (weight percent): friction off-color material 10%-30%, low-melting ink vehicle 40%-60%, the mixture 20%-40% of distilled water and Virahol, tributyl phosphate 0.5%-2%, wherein the ratio of distilled water and Virahol is 7: 3, low-melting ink vehicle is by malic acid resin (140 ℃-160 ℃ of fusing points, acid number 130-150) 30-50%, ethylene glycol ethyl ether 10-20%, ethanol 5%-15%, distilled water 20-40%, Monoethanolamine MEA BASF 5%-10% forms, pH value 8-8.5.With above-mentioned substance in proportion after the weighing, in mixing tank, stirred 20-30 minute, pre-dispersed, in ball mill, handle then, make it to reach shadow and write gravure ink utilisation technology index (ink viscosity is between the 80-400 centipoise), be wiping variable color shadow and write the gravure ink finished product, it is imprinted as black, can be changed into redness with white paper friction under certain strength, and in near-infrared region full impregnated mistake.
Four of technology implementation scheme of the present invention is: a kind of wiping variable color ink for ink-jet print, its content and component following (weight percent): friction off-color material (median size is less than 0.5 micron) 15%-40%, solvent 40%-60%, filler 10%-30%, ink addition agent 2%-8% handles above-mentioned component substance in sand mill, can prepare the variable color ink for ink-jet print, its blackish green marking can be changed into redness in certain strength with white paper friction, and in near-infrared region full impregnated mistake.
Five of technology implementation scheme of the present invention is: a kind of wiping variable color screen printing ink, its content and component following (weight percent): ethyl-hydroxyethyl fiber 1%-8%, malic acid resin 5%-20%, Synolac 2%-8%, petroleum solvent (boiling range 160-200 ℃) 20%-55%, with above-mentioned substance mixture high-speed stirring, dissolving evenly, add the friction off-color material then, friction off-color material preferred proportion is 15%-40%, gummy oil 10%-20%, petroleum solvent 2%-6% disperses with three-roller, is to wipe the variable color screen printing ink, its black marking becomes redness with white paper friction under certain strength, and in near-infrared region full impregnated mistake.
In addition, with wiping variable color printing ink prepared among embodiment one, two, three, four or five, add ultraviolet fluorescent material [for example ZnS:Cu Ultraluminescence pigment (under the ultraviolet excitation of 365nm, sending visible green) or the Y of 10%-30%
2O
2S:Eu Ultraluminescence pigment is (under the ultraviolet excitation of 365nm, send visible red)], according to known printing ink working method, can be made into printing-ink, except that having the anti-counterfeiting characteristic that friction variable color, near-infrared region full impregnated cross, the antiforge function that also has the Ultraluminescence feature.
With wiping variable color printing ink prepared among embodiment one, two, three, four or five, the light magnetic paint (as carbonyl nickel powder, powder of stainless steel etc.) that adds 20%-40% is according to known printing ink working method, can be made into printing-ink, except that having the anti-counterfeiting characteristic that friction variable color, near-infrared region full impregnated cross, also has the antiforge function of magnetic characteristic.The doped magnetic material, its marking has detectable magnetic characteristic.
Except that can mix above-mentioned ultraviolet fluorescent material, magneticsubstance, other anti-fake material that also can mix, for example temperature becomes material, infrared up-conversion material, phosphor material etc.Promptly on the friction variable color of wiping variable color printing ink, basis that the near-infrared region full impregnated is crossed,, increase new antiforge function according to application need.
The beneficial effect that the present invention compared with prior art has is: owing to contain a kind of friction off-color material among the present invention, and can compound multiple other antiforge function, and patience is good, be different from the responsive printing ink of the conventional type that reacts to each other, can stand to produce, the test of process of circulation various factors, only just variable color of friction under certain strength of the marking, it is good to wipe the suitable property of variable color ink printing, but application mode offset printing, protruding seal, gravure, spray ink Printing etc., as a kind of popular anti-counterfeiting characteristic, the present invention can be applicable to various Valued Securities and trade mark.Can be on the spot, patterns such as lines, number, when needs are differentiated its true and false, wipe the marking of variable color printing ink with frictions such as white paper, can find that the marking becomes redness, can conveniently judge the true and false with this.Simultaneously, also has the feature that the near-infrared region full impregnated is crossed.In addition, as required, other anti-fake material that can among wiping variable color printing ink, mix, compound other anti-counterfeiting characteristic improves false proof level, increases tamperer's difficulty.For example, can on a line anti-counterfeiting characteristic basis of friction variable color, increase the Ultraluminescence feature, perhaps add functions such as magnetic detection.Like this, under the situation that does not influence printing or use, promoted false proof level.
Description of drawings
Fig. 1 is the infrared external reflection graphic representation (off-color material that wherein rubs is crossed at the near-infrared region full impregnated) of friction off-color material of the present invention.
Embodiment
Embodiment 1, wipes the preparation of variable color flexographic ink:
Friction off-color material: 25%
Resol oil: 30%
Synolac (oil content 70): 22%
Pearl filler: 20%
Siccative: 1%
High-boiling point kerosene: 2%
With above-mentioned substance in proportion after the weighing, in mixing tank, stirred 20-30 minute, pre-dispersed, on three roller ink grinding mills, be rolled then, make it to reach flexographic ink utilisation technology index (printing ink fineness≤15 micron, degree of mobilization is 28--35mm), be and wipe variable color flexographic ink finished product, it is imprinted as blackish green, can be changed into redness with white paper friction under certain strength, and in near-infrared region full impregnated mistake.
Embodiment 2, in the wiping variable color flexographic ink that embodiment 1 is prepared, the ZnS:Cu Ultraluminescence pigment of adding 20% is (under the ultraviolet excitation of 365nm, send visible green), according to known printing ink working method, can be made into printing-ink, except that having the anti-counterfeiting characteristic that friction variable color, near-infrared region full impregnated cross, the antiforge function that also has the Ultraluminescence feature.
Embodiment 3, in the wiping variable color flexographic ink that embodiment 1 is prepared, add 20% Y
2O
2S:Eu Ultraluminescence pigment is (under the ultraviolet excitation of 365nm, send visible red) according to known printing ink working method, can be made into printing-ink, except that having the anti-counterfeiting characteristic that friction variable color, near-infrared region full impregnated cross, the antiforge function that also has the Ultraluminescence feature.
Embodiment 4, in the wiping variable color flexographic ink that embodiment 1 is prepared, the light magnetic paint (as carbonyl nickel powder, powder of stainless steel etc.) of adding 30%, according to known printing ink working method, can be made into printing-ink, except that having the anti-counterfeiting characteristic that friction variable color, near-infrared region full impregnated cross, also has the antiforge function of magnetic characteristic.
Embodiment 5, wipe the preparation of variable color letterpress printing ink
Friction off-color material: 20%
Synolac (oil content 70): 30%
Stand oil (No. 6): 10%
Gummy oil: 20%
Pearl filler: 18%
Siccative: 1%
High-boiling point kerosene: 1%
With above-mentioned substance in proportion after the weighing, in mixing tank, stirred 20-30 minute, pre-dispersed, on three roller ink grinding mills, be rolled then, make it to reach letterpress printing ink utilisation technology index (printing ink fineness≤15 micron, degree of mobilization is 25-29mm), be and wipe variable color letterpress printing ink finished product, it is imprinted as black, can be changed into redness with yellow paper friction under certain strength, and in near-infrared region full impregnated mistake.
Embodiment 6, in the wiping variable color letterpress printing ink that embodiment 5 is prepared, the ZnS:Cu Ultraluminescence pigment of adding 15% is (under the ultraviolet excitation of 365nm, send visible green), according to known printing ink working method, can be made into printing-ink, except that having the anti-counterfeiting characteristic that friction variable color, near-infrared region full impregnated cross, the antiforge function that also has the Ultraluminescence feature.
Embodiment 7, in the wiping variable color letterpress printing ink that embodiment 5 is prepared, add 25% Y
2O
2S:Eu Ultraluminescence pigment is (under the ultraviolet excitation of 365nm, send visible red), according to known printing ink working method, can be made into printing-ink, except that having the anti-counterfeiting characteristic that friction variable color, near-infrared region full impregnated cross, the antiforge function that also has the Ultraluminescence feature.
Embodiment 8, in the wiping variable color letterpress printing ink that embodiment 5 is prepared, the light magnetic paint (as carbonyl nickel powder, powder of stainless steel etc.) of adding 25%, according to known printing ink working method, can be made into printing-ink, except that having the anti-counterfeiting characteristic that friction variable color, near-infrared region full impregnated cross, also has the antiforge function of magnetic characteristic.
Embodiment 9, wipe the preparation that the variable color shadow is write gravure ink
Friction off-color material: 15%
Low-melting ink vehicle: 50%
The mixture of distilled water and Virahol: 30%
Tributyl phosphate: 1%
Wherein the ratio of distilled water and Virahol is 7: 3, and low-melting ink vehicle is by malic acid resin (140 ℃-160 ℃ of fusing points, acid number 130-150) 40%, ethylene glycol ethyl ether 15%, and ethanol 10%, distilled water 30%, Monoethanolamine MEA BASF 5-10% forms, pH value 8-8.5.
Above-mentioned substance is in proportion after the weighing, in mixing tank, stirred 20-30 minute, pre-dispersed, in ball mill, handle then, make it to reach shadow and write gravure ink utilisation technology index (ink viscosity is between the 80-400 centipoise), be wiping variable color shadow and write the gravure ink finished product, it is imprinted as black, can be changed into redness with white paper friction under certain strength, and in near-infrared region full impregnated mistake.
Embodiment 10, embodiment 9 prepared wiping variable color shadows are write in the gravure ink, the ZnS:Cu Ultraluminescence pigment of adding 20% is (under the ultraviolet excitation of 365nm, send visible green), according to known printing ink working method, can be made into printing-ink, except that having the anti-counterfeiting characteristic that friction variable color, near-infrared region full impregnated cross, the antiforge function that also has the Ultraluminescence feature.
Embodiment 11, and embodiment 9 prepared wiping variable color shadows are write in the gravure ink, add 20% Y
2O
2S:Eu Ultraluminescence pigment is (under the ultraviolet excitation of 365nm, send visible red) according to known printing ink working method, can be made into printing-ink, except that having the anti-counterfeiting characteristic that friction variable color, near-infrared region full impregnated cross, the antiforge function that also has the Ultraluminescence feature.
Embodiment 12, embodiment 9 prepared wiping variable color shadows are write in the gravure ink, the light magnetic paint (as carbonyl nickel powder, powder of stainless steel etc.) of adding 30%, according to known printing ink working method, can be made into printing-ink, except that having the anti-counterfeiting characteristic that friction variable color, near-infrared region full impregnated cross, also has the antiforge function of magnetic characteristic.
Embodiment 13, wipe the preparation of variable color ink for ink-jet print
Friction off-color material (median size is less than 0.5 micron): 25%
Solvent: 50%
Filler: 20%
Ink addition agent: 5%
Wherein solvent, filler and ink addition agent can be respectively 2-Pyrrolidone, calcium carbonate superfine powder, TEG.
The aforementioned proportion material is handled in sand mill, can be prepared the variable color ink for ink-jet print, its blackish green marking can be changed into redness in certain strength with white cardboard friction, and in near-infrared region full impregnated mistake.
Embodiment 14, in the wiping variable color ink for ink-jet print that embodiment 13 is prepared, the ZnS:Cu Ultraluminescence pigment of adding 25% is (under the ultraviolet excitation of 365nm, send visible green), according to known printing ink working method, can be made into printing-ink, except that having the anti-counterfeiting characteristic that friction variable color, near-infrared region full impregnated cross, the antiforge function that also has the Ultraluminescence feature.
Embodiment 15, in the wiping variable color ink for ink-jet print that embodiment 13 is prepared, add 15% Y
2O
2S:Eu Ultraluminescence pigment is (under the ultraviolet excitation of 365nm, send visible red), according to known printing ink working method, can be made into printing-ink, except that having the anti-counterfeiting characteristic that friction variable color, near-infrared region full impregnated cross, the antiforge function that also has the Ultraluminescence feature.
Embodiment 16, in the wiping variable color ink for ink-jet print that embodiment 13 is prepared, the light magnetic paint (as carbonyl nickel powder, powder of stainless steel etc.) of adding 25%, according to known printing ink working method, can be made into printing-ink, except that having the anti-counterfeiting characteristic that friction variable color, near-infrared region full impregnated cross, also has the antiforge function of magnetic characteristic.
Embodiment 17, wipe the preparation of variable color screen printing ink:
Friction off-color material: 25%
Gummy oil: 15%
Petroleum solvent: 4%
Ethyl-hydroxyethyl fiber: 3.8%
Malic acid resin: 12.2％
Synolac 5%
Petroleum solvent (boiling range 160-200 ℃) 35%
With the compounding substances high-speed stirring of aforementioned proportion, dissolving evenly disperses with three-roller then, is to wipe the variable color screen printing ink, and its black marking becomes redness with the calico friction under certain strength, and in near-infrared region full impregnated mistake.
Embodiment 18, in the wiping variable color screen printing ink that embodiment 17 is prepared, the ZnS:Cu Ultraluminescence pigment of adding 15% is (under the ultraviolet excitation of 365nm, send visible green), according to known printing ink working method, can be made into printing-ink, except that having the anti-counterfeiting characteristic that friction variable color, near-infrared region full impregnated cross, the antiforge function that also has the Ultraluminescence feature.
Embodiment 19, in the wiping variable color screen printing ink that embodiment 17 is prepared, add 20% Y
2O
2S:Eu Ultraluminescence pigment is (under the ultraviolet excitation of 365nm, send visible red), according to known printing ink working method, can be made into printing-ink, except that having the anti-counterfeiting characteristic that friction variable color, near-infrared region full impregnated cross, the antiforge function that also has the Ultraluminescence feature.
Embodiment 20, in the wiping variable color screen printing ink that embodiment 17 is prepared, add 20% light magnetic paint (as carbonyl nickel powder, powder of stainless steel etc.), according to known printing ink working method, can be made into printing-ink, except that having the anti-counterfeiting characteristic that friction variable color, near-infrared region full impregnated cross, also has the magnetic characteristic antiforge function.
Embodiment 21, and concrete component and the content of wiping the variable color screen printing ink are as follows:
Friction off-color material: 8%
Gummy oil: 20%
Petroleum solvent: 4%
Ethyl-hydroxyethyl fiber: 3.8%
Malic acid resin: 12.2％
Synolac 5%
Petroleum solvent (boiling range 160-200 ℃) 47%
With the compounding substances high-speed stirring of aforementioned proportion, dissolving evenly disperses with three-roller then, is to wipe the variable color screen printing ink, and its black marking becomes redness with the calico friction under certain strength, and in near-infrared region full impregnated mistake.
Embodiment 22: wipe the variable color screen printing ink concrete component and:
Friction off-color material: 51%
Gummy oil: 9%
Petroleum solvent: 4%
Ethyl-hydroxyethyl fiber: 3.8%
Malic acid resin: 7.2％
Synolac 5%
Petroleum solvent (boiling range 160-200 ℃) 20%
With the compounding substances high-speed stirring of aforementioned proportion, dissolving evenly disperses with three-roller then, is to wipe the variable color screen printing ink, and its black marking becomes redness with the calico friction under certain strength, and in near-infrared region full impregnated mistake.
Claims (8)
1. wipe variable color printing ink for one kind, comprise the friction off-color material, it is characterized in that: described friction off-color material is to have friction off-color material single active principle, should single active principle change self color under the rubbing effect of certain strength.
2. wiping variable color printing ink according to claim 1 is characterized in that: described friction off-color material is a kind of perylene compound, and in near-infrared region full impregnated mistake, its molecular formula is:
Wherein R is-CH
2-CHOH-CH
3,-CH
2-CH
2-CH
2-CH
2-CH
3,-CH
2-CH
2-CH
2-CH
2-CH
2-OH ,-CH
2-CH
2-OH or
3. wiping variable color printing ink according to claim 1 and 2, it is characterized in that: described friction off-color material accounts for the 10-50% of ink by weight.
4. wiping variable color printing ink according to claim 1 and 2 is characterized in that: described wiping variable color printing ink also comprises the Ultraluminescence pigment of the 10%-30% that accounts for above-mentioned ink by weight.
5. wiping variable color printing ink according to claim 3 is characterized in that: described wiping variable color printing ink also comprises the Ultraluminescence pigment of the 10%-30% that accounts for above-mentioned ink by weight.
6. wiping variable color printing ink according to claim 1 and 2 is characterized in that: the light magnetic paint that also comprises the 20%-40% that accounts for above-mentioned ink by weight.
7. wiping variable color printing ink according to claim 3 is characterized in that: described wiping variable color printing ink also comprises the light magnetic paint of the 20%-40% that accounts for above-mentioned ink by weight.
8. wiping variable color printing ink according to claim 1 and 2 is characterized in that: described wiping variable color printing ink is that flexographic ink, letterpress printing ink, shadow are write gravure ink, screen printing ink or ink for ink-jet print.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02146591 CN1186408C (en) | 2002-10-24 | 2002-10-24 | Erase color variable ink |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02146591 CN1186408C (en) | 2002-10-24 | 2002-10-24 | Erase color variable ink |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1424369A CN1424369A (en) | 2003-06-18 |
| CN1186408C true CN1186408C (en) | 2005-01-26 |
Family
ID=4751115
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 02146591 Expired - Lifetime CN1186408C (en) | 2002-10-24 | 2002-10-24 | Erase color variable ink |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1186408C (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100368490C (en) * | 2005-07-28 | 2008-02-13 | 中国印钞造币总公司 | UV cured concealed fluorescent frequency conversion ink |
| CN1317342C (en) * | 2005-07-28 | 2007-05-23 | 中国印钞造币总公司 | Black fluorescent ink |
| CN102352149A (en) * | 2011-08-05 | 2012-02-15 | 深圳力合防伪技术有限公司 | Magnetic resonance and friction dyeing composite antiforge printing ink |
| CN103694785A (en) * | 2013-12-06 | 2014-04-02 | 上海德粼水性油墨有限公司 | Offset print colorless irradiating luminescent anti-forgery ink and preparation method thereof |
| CN105670379B (en) * | 2016-03-09 | 2019-04-12 | 深圳力合防伪技术有限公司 | A kind of quick offset ink of ultraviolet light solidification wiping |
-
2002
- 2002-10-24 CN CN 02146591 patent/CN1186408C/en not_active Expired - Lifetime
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| Publication number | Publication date |
|---|---|
| CN1424369A (en) | 2003-06-18 |
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Assignee: SECURITY PRINTING INSTITUTE OF PEOPLE'S BANK OF CHINA Assignor: CHINA BANKNOTE PRINTING AND MINTING Corp. Contract fulfillment period: 2008.11.11 to 2013.11.10 Contract record no.: 2008110000159 Denomination of invention: Erase color variable ink Granted publication date: 20050126 License type: Exclusive license Record date: 20081205 |
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Free format text: EXCLUSIVE LICENSE; TIME LIMIT OF IMPLEMENTING CONTACT: 2008.11.11 TO 2013.11.10; CHANGE OF CONTRACT Name of requester: PEOPLE'S BANK OF CHINA SCIENCE PRINTING TECHNOLOGY Effective date: 20081205 |
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| CP03 | Change of name, title or address |
Address after: 100044 Beijing city Xicheng District Xizhimen Street No. 143 triumph building Patentee after: China Banknote Printing and Minting Group Co.,Ltd. Address before: 100016 Beijing city Xicheng District Xizhimen Street No. 143 Patentee before: CHINA BANKNOTE PRINTING AND MINTING Corp. |
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| CP03 | Change of name, title or address | ||
| CX01 | Expiry of patent term |
Granted publication date: 20050126 |
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| CX01 | Expiry of patent term |