CN106349809A - Infrared absorption-nonabsorption paired carving gravure ink - Google Patents
Infrared absorption-nonabsorption paired carving gravure ink Download PDFInfo
- Publication number
- CN106349809A CN106349809A CN201610975675.7A CN201610975675A CN106349809A CN 106349809 A CN106349809 A CN 106349809A CN 201610975675 A CN201610975675 A CN 201610975675A CN 106349809 A CN106349809 A CN 106349809A
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- Prior art keywords
- infrared absorption
- infrared
- absorbing
- printing ink
- intaglio printing
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B26—HAND CUTTING TOOLS; CUTTING; SEVERING
- B26B—HAND-HELD CUTTING TOOLS NOT OTHERWISE PROVIDED FOR
- B26B21/00—Razors of the open or knife type; Safety razors or other shaving implements of the planing type; Hair-trimming devices involving a razor-blade; Equipment therefor
- B26B21/40—Details or accessories
- B26B21/4012—Housing details, e.g. for cartridges
- B26B21/4018—Guard elements
-
- 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
- C09D11/104—Polyesters
- C09D11/105—Alkyd resins
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B26—HAND CUTTING TOOLS; CUTTING; SEVERING
- B26B—HAND-HELD CUTTING TOOLS NOT OTHERWISE PROVIDED FOR
- B26B21/00—Razors of the open or knife type; Safety razors or other shaving implements of the planing type; Hair-trimming devices involving a razor-blade; Equipment therefor
- B26B21/40—Details or accessories
- B26B21/4012—Housing details, e.g. for cartridges
- B26B21/4025—Cap elements
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B26—HAND CUTTING TOOLS; CUTTING; SEVERING
- B26B—HAND-HELD CUTTING TOOLS NOT OTHERWISE PROVIDED FOR
- B26B21/00—Razors of the open or knife type; Safety razors or other shaving implements of the planing type; Hair-trimming devices involving a razor-blade; Equipment therefor
- B26B21/40—Details or accessories
- B26B21/4043—Contour trimming
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B26—HAND CUTTING TOOLS; CUTTING; SEVERING
- B26B—HAND-HELD CUTTING TOOLS NOT OTHERWISE PROVIDED FOR
- B26B21/00—Razors of the open or knife type; Safety razors or other shaving implements of the planing type; Hair-trimming devices involving a razor-blade; Equipment therefor
- B26B21/40—Details or accessories
- B26B21/44—Means integral with, or attached to, the razor for storing shaving-cream, styptic, or the like
- B26B21/443—Lubricating strips attached to the razor head
-
- 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
-
- 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
- C09D11/103—Printing inks based on artificial resins containing macromolecular compounds obtained by reactions other than those only involving unsaturated carbon-to-carbon bonds of aldehydes, e.g. phenol-formaldehyde resins
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- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Materials Engineering (AREA)
- Wood Science & Technology (AREA)
- Organic Chemistry (AREA)
- Forests & Forestry (AREA)
- Mechanical Engineering (AREA)
- General Chemical & Material Sciences (AREA)
- Inks, Pencil-Leads, Or Crayons (AREA)
- Printing Methods (AREA)
Abstract
The invention discloses an infrared absorption-nonabsorption paired carving gravure ink which comprises an infrared absorption carving gravure ink A and an infrared-nonabsorption carving gravure ink B with the same appearance and color as the infrared absorption carving gravure ink A, wherein the infrared absorption carving gravure ink A uses a blue or green phase pigment C which is absorptive in the 700-850nm near-infrared region as the infrared absorption material; and the pigment of the infrared-nonabsorption carving gravure ink B is a blue or green phase inorganic pigment D which is nonabsorptive in the 700nm+ infrared region. The infrared absorption-nonabsorption paired carving gravure ink solves the problem of poor infrared pairing effect in the blue or green phase ink in the prior art, and enhances the forgery prevention effect.
Description
Technical field
The present invention relates to ink area, more particularly, to a kind of INFRARED ABSORPTION-non-absorbing pairing engraving intaglio printing ink.
Background technology
Near infrared absorption-non-absorbing pairing anti-forgery ink, as a kind of counterfeit protection measures, is widely used.Generally make
Make pairing ink near infrared absorption material between 700 to 2000nm for the absorption region and infrared non-absorbing material to carry out,
It has been well known to those skilled in the art and has been widely applied in the application of anti-counterfeit field.
General INFRARED ABSORPTION-non-absorbing pairing anti-forgery ink is on the basis of using same colorant by whether adding
Infrared absorbing material is carrying out the pairing of anti-forgery ink.From from the point of view of infrared pairing effect, typically in the ink of blue, green phase
There is a problem of that pairing effect is poor, this problem main reason is that the inorganic face such as the phthalocyanines organic pigment being usually used or barba hispanica
Material has part hangover to absorb in the infrared band of 700nm to 850nm, when the ink making this form and aspect with identical form and aspect and contains
When the ink of infrared absorbing material carries out infrared pairing, distinguish inconspicuous between absorption and non-absorbing, antifalse effect is not good.This
Outward, what the INFRARED ABSORPTION anti-forgery ink making under this form and aspect was relatively easy to is copied using common pigment making ink, prevents
Pseudo- threshold substantially reduces.Therefore, find the excellent material of near-infrared non-absorbing, patience in blue, green phase as pigment, then with
Infrared absorbing inks carry out pairing antiforge and can improve antifalse effect, and fake producer is kept outside of the door.
Content of the invention
It is an object of the invention to provide a kind of INFRARED ABSORPTION-non-absorbing pairing engraving intaglio printing ink, solve existing skill
There is a problem of in the ink of blue in art, green phase that infrared pairing effect is poor, improve antifalse effect.
The technical scheme realizing the object of the invention is as follows:
A kind of INFRARED ABSORPTION-non-absorbing pairing engraving intaglio printing ink, by a kind of INFRARED ABSORPTION engraving intaglio printing ink a and
Plant the infrared non-absorbing engraving intaglio printing ink b composition consistent with described INFRARED ABSORPTION engraving intaglio printing ink a appearance color；Wherein,
Described INFRARED ABSORPTION engraving intaglio printing ink a is used has the indigo plant of absorption or green phase pigment c conduct in 700-850nm near infrared region
Infrared absorbing material；The pigment of described infrared non-absorbing engraving intaglio printing ink b is the indigo plant in the no absorption of more than 700nm region of ultra-red
Or green phase inorganic pigment d, the main component of described blue or green phase inorganic pigment d is cobalt aluminate, and particle diameter is nanoscale.
Further, described blue or green phase inorganic pigment d also one or more elements containing zn, ti or ni, these
The interpolation of element can adjust form and aspect and the INFRARED ABSORPTION situation of pigment.
Further, the mean diameter of described blue or green phase inorganic pigment d is in 200-400nm, and maximum particle diameter does not surpass
Cross 1um, under this particle diameter, inorganic pigment can reach the requirement to tinting strength, tinting power for the engraving intaglio printing ink, and ink process is made in rolling
In do not destroy pigment, do not interfere with infrared property.
Further, described infrared non-absorbing engraving intaglio printing ink b includes indigo plant or the green of 10-40% by weight percentage
The binder of phase inorganic pigment d, 30%-50%, the inserts of 0-10%, the wax of 3-10%, the surfactant of 3-7%, 1-
3% desiccant and the solvent of 1-5%, wherein said binder can be selected for one or more of alkyd resin, phenolic resin,
Described inserts can be selected for one or more of calcium oxide, titanium white or Calcium Carbonate, and described surfactant is Tissuemat E.
Further, used in described INFRARED ABSORPTION engraving intaglio printing ink, blue or green phase pigment c is selected from phthalocyanine blue, phthalein
Cyanines are green, one of barba hispanica or naphthol green 1602.
Further, described INFRARED ABSORPTION engraving intaglio printing ink a includes the indigo plant of 5-20% or green phase by weight percentage
The binder of pigment c, 30-60%, the inserts of 5-20%, the wax of 3-10%, the surfactant of 3-7%, the drying of 1-3%
Agent and the solvent of 1-10%, wherein said binder selects one or more of alkyd resin, phenolic resin, described inserts
From one or more of calcium oxide, titanium white or Calcium Carbonate, described surfactant is Tissuemat E.
Another object of the present invention is to offer is a kind of matches engraving intaglio printing ink using above-mentioned INFRARED ABSORPTION-non-absorbing
Carry out false proof method, carry out carved gravure pattern wiring print using described INFRARED ABSORPTION-non-absorbing pairing engraving intaglio printing ink
Brush, carries out false proof mirror to the INFRARED ABSORPTION area in printed patterns using infrared absorption spectrometer in 700-850nm near infrared region
Fixed.
The present invention also aims to providing another to use above-mentioned INFRARED ABSORPTION-non-absorbing pairing carved gravure oil
Ink carries out false proof method, carries out carved gravure pattern wiring using described INFRARED ABSORPTION-non-absorbing pairing engraving intaglio printing ink
Printing, using the characteristic infrared absorption pattern obtaining in 700-850nm near infrared region, the Special instrument being imaged by INFRARED ABSORPTION
Device carries out authentication.
The beneficial effects of the present invention is:
1) a kind of INFRARED ABSORPTION-non-absorbing pairing engraving intaglio printing ink, its mid-infrared non-absorbing engraving intaglio printing ink b are provided
Nano inorganic material containing cobalt aluminate is used as the developer of blue or green phase, there is infrared non-absorbing after 700nm, coloring
The feature that power is higher, toleration is more excellent, and utilize blue or green phase pigment in INFRARED ABSORPTION engraving intaglio printing ink a in 700-
850nm near infrared region has the characteristics that INFRARED ABSORPTION, is used blue, green phase pigment as infrared absorbing agents, what the two formed joins
Identical to engraving intaglio printing ink appearance color, multi-anti-counterfeit effect can be realized by wiring typography, from material, ink, work
Skill three aspect is all that adulterator is provided with false proof threshold, increased forgery difficulty, and then is obviously improved anti-counterfeiting technology, improves false proof
Effect；
2) add INFRARED ABSORPTION material after 1000nm for the main absworption peak in above-mentioned infrared non-absorbing engraving intaglio printing ink b
Material is so that in 700-850nm region of ultra-red and more than 1000nm region of ultra-red, described INFRARED ABSORPTION-non-absorbing pairing is carved
The infrared absorption characteristic of gravure ink changes, i.e. 700-850nm region of ultra-red, and the ink containing nano inorganic material is infrared non-suction
Receipts state, and INFRARED ABSORPTION engraving intaglio printing ink a is INFRARED ABSORPTION state, but in more than 1000nm region of ultra-red, due to red
The addition of outer absorbing material, the ink containing nano inorganic material is changed into INFRARED ABSORPTION state, and INFRARED ABSORPTION carved gravure is oily
Black a is then changed into infrared non-absorbing state.
Brief description
Fig. 1 embodiment of the present invention 2 INFRARED ABSORPTION-non-absorbing matches the pairing ink in engraving intaglio printing ink visible-range
Color contrast figure.
Fig. 2 embodiment of the present invention 2 INFRARED ABSORPTION-non-absorbing matches the infrared external reflection curve chart of engraving intaglio printing ink.
Specific embodiment
Embodiment 1
Blue infrared non-absorbing engraving intaglio printing ink b
Wherein, above-mentioned content is weight content (similarly hereinafter)；Wherein blue inorganic nano dye may be selected main component be
The inorganic pigment of cobalt aluminate, mean diameter is in 200-400nm, and maximum particle diameter is less than 1um, can add for adjusting in pigment
Pigment form and aspect and INFRARED ABSORPTION situation containing one or more of zn, ti or ni element.
Preparation technology is: the material of the above-mentioned weight content of precise, and pre-dispersed in charging basket, then by mixture three
Rolled on roller ink grinding mill, after product reaches ink application technology index and infrared non-absorbing effect after testing, afterwards
Product ink.Region of ultra-red after 700nm for the above-mentioned ink does not absorb completely.Embodiment 2
Blue INFRARED ABSORPTION-non-absorbing pairing ink
Infrared non-absorbing ink b:
Infrared absorbing inks a:
Using the preparation technology in embodiment 1, respectively obtain the infrared of pairing according to different material than carrying out feeding intake preparing
Absorb ink and non-absorbing ink, the infrared external reflection curve of two kinds of ink can as shown in Figure 2, and infrared absorbing inks a is in 700-
850nm near infrared region has absorption, and infrared non-absorbing ink b no absorbs in 700-850nm near infrared region, wherein for making to join
To ink in visible range solid colour, also can add the pigment of other colour systems a small amount of in infrared non-absorbing ink such as
F5rk permanent bordeaux pigment etc. is used as toning, and addition is defined by actual toning situation, is illustrated in figure 1 joining in visible-range
Color contrast figure to ink.Embodiment 3
Special INFRARED ABSORPTION pairing ink:
Ink a: with reference to the infrared absorbing inks in embodiment 2
Ink b: based on embodiment 2 mid-infrared non-absorbing ink, add main absworption peak infrared after 1000nm
Absorbing material
Above-mentioned pairing ink will be with infrared 850nm as boundary line, before 850nm, and ink a is INFRARED ABSORPTION, and ink b is red
Outer non-absorbing.And after 850nm, being changed into ink a is infrared non-absorbing and ink b INFRARED ABSORPTION.Using such infrared
Matching method further increases fake producer and forges threshold, makes secure file safer.
Embodiment 4
Carry out carved gravure pattern wiring printing using the blue INFRARED ABSORPTION in embodiment 3-non-absorbing pairing ink,
In 700-850nm near infrared region, using infrared absorption spectrometer, authentication is carried out to the INFRARED ABSORPTION area in printed patterns；
Or using the characteristic infrared absorption pattern obtaining in 700-850nm near infrared region, it is imaged by INFRARED ABSORPTION
Instrumentation carry out visible-infrared spectrum compare, realize authentication.
Claims (9)
1. a kind of INFRARED ABSORPTION-non-absorbing pairing engraving intaglio printing ink is it is characterised in that one of which is recessed for INFRARED ABSORPTION engraving
Printing ink a, another kind is the infrared non-absorbing carved gravure oil consistent with described INFRARED ABSORPTION engraving intaglio printing ink a appearance color
Black b；
Described INFRARED ABSORPTION engraving intaglio printing ink a is using the indigo plant having absorption in 700-850nm near infrared region or green phase pigment c
As infrared absorbing material；
The pigment of described infrared non-absorbing engraving intaglio printing ink b is in the indigo plant of more than 700nm region of ultra-red no absorption or green phase
Inorganic pigment d.
2. INFRARED ABSORPTION according to claim 1-non-absorbing pairing engraving intaglio printing ink it is characterised in that described blue or
Green phase inorganic pigment d selects the inorganic pigment that main component is cobalt aluminate, and particle diameter is nanoscale.
3. INFRARED ABSORPTION according to claim 1-non-absorbing pairing engraving intaglio printing ink it is characterised in that described blue or
Green phase inorganic pigment d also one or more elements containing zn, ti or ni.
4. INFRARED ABSORPTION according to claim 1-non-absorbing pairing engraving intaglio printing ink it is characterised in that described blue or
The mean diameter of green phase inorganic pigment d is in 200-400nm, and maximum particle diameter is less than 1um.
5. INFRARED ABSORPTION according to claim 1-non-absorbing pairing engraving intaglio printing ink is it is characterised in that described infrared
Non-absorbing engraving intaglio printing ink b includes the indigo plant of 10-40% or the company of green phase inorganic pigment d, 30%-50% by weight percentage
Splicing, the inserts of 0-15%, the wax of 3-10%, the solvent of the surfactant of 3-7%, the desiccant of 1-3% and 1-5%,
Wherein said binder select one or more of alkyd resin, phenolic resin, described inserts select calcium oxide, titanium white or
One or more of Calcium Carbonate, described surfactant is Tissuemat E.
6. INFRARED ABSORPTION according to claim 1-non-absorbing pairing engraving intaglio printing ink is it is characterised in that described infrared
Absorb blue or green phase pigment c used in engraving intaglio printing ink to be selected from phthalocyanine blue, phthalocyanine green, barba hispanica or naphthol green 1602
A kind of.
7. INFRARED ABSORPTION according to claim 1-non-absorbing pairing engraving intaglio printing ink is it is characterised in that described infrared
Absorb engraving intaglio printing ink a and include the indigo plant of 5-20% or the binder of green phase pigment c, 30-60%, 5- by weight percentage
20% inserts, the wax of 3-10%, the solvent of the surfactant of 3-7%, the desiccant of 1-3% and 1-10%, wherein institute
State binder and select one or more of alkyd resin, phenolic resin, described inserts select calcium oxide, titanium white or Calcium Carbonate
One or more of, described surfactant is Tissuemat E.
8. a kind of usage right requires the INFRARED ABSORPTION-non-absorbing pairing engraving intaglio printing ink any one of 1-7 to be prevented
Pseudo- method is it is characterised in that being carried out carved gravure pattern and connect using described INFRARED ABSORPTION-non-absorbing pairing engraving intaglio printing ink
Line prints, and in 700-850nm near infrared region, the INFRARED ABSORPTION area in printed patterns is carried out using infrared absorption spectrometer
Authentication.
9. a kind of usage right requires the INFRARED ABSORPTION-non-absorbing pairing engraving intaglio printing ink any one of 1-7 to be prevented
Pseudo- method is it is characterised in that being carried out carved gravure pattern and connect using described INFRARED ABSORPTION-non-absorbing pairing engraving intaglio printing ink
Line prints, using the characteristic infrared absorption pattern obtaining in 700-850nm near infrared region, by INFRARED ABSORPTION be imaged special
Instrument carries out visible-infrared spectrum and compares, and realizes authentication.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610975675.7A CN106349809B (en) | 2016-11-07 | 2016-11-07 | A kind of non-absorbing pairing engraving intaglio printing ink of infrared absorption- |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610975675.7A CN106349809B (en) | 2016-11-07 | 2016-11-07 | A kind of non-absorbing pairing engraving intaglio printing ink of infrared absorption- |
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| Publication Number | Publication Date |
|---|---|
| CN106349809A true CN106349809A (en) | 2017-01-25 |
| CN106349809B CN106349809B (en) | 2019-09-03 |
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| CN201610975675.7A Active CN106349809B (en) | 2016-11-07 | 2016-11-07 | A kind of non-absorbing pairing engraving intaglio printing ink of infrared absorption- |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08134389A (en) * | 1994-11-14 | 1996-05-28 | Mitsui Toatsu Chem Inc | Photocurable resin composition |
| CN101003241A (en) * | 2006-10-11 | 2007-07-25 | 中国印钞造币总公司 | Confidential marker on anti false information carrier, test method, and test equipment |
| CN101244679A (en) * | 2007-02-15 | 2008-08-20 | 中国印钞造币总公司 | Method for implementing false prevention by using metamerism magnetism to match with printing ink |
| CN102267299A (en) * | 2011-08-05 | 2011-12-07 | 深圳力合防伪技术有限公司 | Near-infrared absorbing ink and near-infrared non-absorbing ink combined anti-counterfeiting method |
| CN105733362A (en) * | 2015-12-23 | 2016-07-06 | 上海印钞有限公司 | Infrared up-conversion pairing sculpture gravure ink |
-
2016
- 2016-11-07 CN CN201610975675.7A patent/CN106349809B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08134389A (en) * | 1994-11-14 | 1996-05-28 | Mitsui Toatsu Chem Inc | Photocurable resin composition |
| CN101003241A (en) * | 2006-10-11 | 2007-07-25 | 中国印钞造币总公司 | Confidential marker on anti false information carrier, test method, and test equipment |
| CN101244679A (en) * | 2007-02-15 | 2008-08-20 | 中国印钞造币总公司 | Method for implementing false prevention by using metamerism magnetism to match with printing ink |
| CN102267299A (en) * | 2011-08-05 | 2011-12-07 | 深圳力合防伪技术有限公司 | Near-infrared absorbing ink and near-infrared non-absorbing ink combined anti-counterfeiting method |
| CN105733362A (en) * | 2015-12-23 | 2016-07-06 | 上海印钞有限公司 | Infrared up-conversion pairing sculpture gravure ink |
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| CN106349809B (en) | 2019-09-03 |
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Address after: 200063 158 Cao Yang Road, Shanghai, Putuo District Patentee after: SHANGHAI BANKNOTE PRINTING Co.,Ltd. Patentee after: China Banknote Printing and Minting Group Co.,Ltd. Address before: 200063 158 Cao Yang Road, Shanghai, Putuo District Patentee before: SHANGHAI BANKNOTE PRINTING Co.,Ltd. Patentee before: CHINA BANKNOTE PRINTING AND MINTING Corp. |
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