CN101463210B - Stable isotope anti-counterfeiting ink and anti-counterfeiting method for file - Google Patents
Stable isotope anti-counterfeiting ink and anti-counterfeiting method for file Download PDFInfo
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- CN101463210B CN101463210B CN 200810224765 CN200810224765A CN101463210B CN 101463210 B CN101463210 B CN 101463210B CN 200810224765 CN200810224765 CN 200810224765 CN 200810224765 A CN200810224765 A CN 200810224765A CN 101463210 B CN101463210 B CN 101463210B
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Abstract
To realize sensitive and stable anti-fake effect with fewer identification isotopes, the invention provides a stable isotope anti-fake ink composed of printer ink and carbamide containing carbon 13 with the proportion by weight of 100: 1 to 250: 1, and the isotopic abundance ratio of carbon 13 in the carbamide containing carbon 13 is greater than 90%. The invention further provides a document anti-fake method: the document is printed by using the stable isotope anti-fake ink; the recorded abundance ratio of carbon 13 of the document is obtained by mass spectrometric detection method, and the inspection abundance ratio of carbon 13 in a document to be inspected is obtained by the mass spectrometric detection method; when the inspection abundance ratio is the same as the recorded abundance ratio, the document to be inspected is a genuine document; when the inspection abundance ratio is different from the recorded abundance ratio, the document to be inspected is a fake document. The stable isotope anti-fake ink and the document anti-fake method by using the stable isotope anti-fake ink provided by the invention can be applied to document anti-fake in the field of public security including anti-fake of official documents, tickets, and the like.
Description
Technical field
The present invention relates to a kind of stable isotope anti-counterfeiting ink and utilize the anti-counterfeiting method for file of this stable isotope anti-counterfeiting ink.
Background technology
Stable isotope is "dead", stable physical property, and each isotopic chemical property is identical, be present in nature with certain proportion, harmless, the method that can take chemosynthesis in VIO (Very Important Object), can detect its mark with methods such as gas-chromatographies at the marker of sample and the concentration of unmarked thing.The principle of stable isotopic tracer technology is based on the various materials of nature all the fixed natural isotopic composition, and has substantially a homoeostasis, for example, occurring in nature carbon has two kinds of isotropic substances: carbon 12 and carbon 13, their isotopic abundance is respectively 98.89% and 1.11%.If with artificial enrichment with the natural isotopic abundance stable isotope that there were significant differences, go certain common isotopics in the alternative predicting of substance, this material is commonly referred to the missing material of isotropic substance because of containing unusual isotopics.It will be different from predicting of substance on every side this moment, but still have the chemical property of predicting of substance on every side.
At present, stable isotope is used widely in research fields such as medical science, agricultural and environmental sciences as a kind of tracer agent.In recent years, multi-disciplinary cross development makes with the research of stable isotope as tracer agent, progressively expands to safety-security area.Wherein, file is false proof is a very important aspect.According to prior art, utilize isotropic substance to carry out as the signature identification thing that file is false proof can be realized fully, problem is to realize sensitive stable anti-fake effect as how less sign isotropic substance.
Summary of the invention
In order to realize sensitive stable anti-fake effect, the invention provides a kind of stable isotope anti-counterfeiting ink, and a kind of anti-counterfeiting method for file that utilizes this stable isotope anti-counterfeiting ink is provided with less sign isotropic substance.
Stable isotope anti-counterfeiting ink provided by the invention, urea by printer ink and carbon containing 13 is formed, the weight ratio of the urea of described printer ink and described carbon containing 13 is 100: 1-250: 1, and the isotopic abundance of the carbon 13 of the urea of described carbon containing 13 is greater than 90%.
Described printer ink can be printer ink commonly used, for example can be composed of the following components:
Powdery marking ink dyestuff: 4.5-5.5 weight part;
Diethylene Glycol monobutyl ether: 1.8-2.2 weight part;
N.F,USP MANNITOL: 1.8-2.2 weight part;
Glycerol: 2.8-3.2 weight part;
Distilled water: 85-90 weight part;
Nonionic surface active agent: 0.9-1.1 weight part.
Anti-counterfeiting method for file provided by the invention is: described file uses the aforementioned stable isotope anti-counterfeiting ink to print, and obtain the record abundance of the carbon 13 of described file by the mass spectrometric detection method, obtain treating the examination abundance of the carbon 13 of verification of contents with described mass spectrometric detection method, when described examination abundance is consistent with described record abundance, the described verification of contents for the treatment of is true basis, when described examination abundance was not consistent with described record abundance, the described verification of contents for the treatment of was originally pseudo-.
Described mass spectrometric detection method is to adopt the vacuum sealing high-temperature oxidation to obtain carbonic acid gas, then described carbonic acid gas is carried out mass spectrometric detection.
Preferably, described vacuum sealing high-temperature oxidation is that sample and cupric oxide are loaded in mixture in reactor, obtains high vacuum, and 550-1000 ℃ was heated 4-24 hour, and lower temperature is corresponding to long heat-up time, and higher temperature is corresponding to short heat-up time.Can also add small amount of silver, as catalyzer, for example the printer paper of 26mg can add the silver of 3-4mg as catalyzer.
The employed sign isotropic substance of stable isotope anti-counterfeiting ink provided by the invention is less, and the anti-counterfeiting method for file of this stable isotope anti-counterfeiting ink that utilizes provided by the invention is sensitive stable.Stable isotope anti-counterfeiting ink provided by the invention is false proof with the file that the anti-counterfeiting method for file that utilizes this stable isotope anti-counterfeiting ink can be applicable to public safety field, comprises the false proof of certification and bill etc.
Embodiment
The present invention will be further described below by embodiment.
Embodiment 1
Printer ink is composed as follows:
Powdery marking ink dyestuff: 5 weight parts;
Diethylene Glycol monobutyl ether: 2 weight parts;
N.F,USP MANNITOL: 2 weight parts;
Glycerol: 3 weight parts;
Distilled water: 87 weight parts;
Nonionic surface active agent: 1 weight part.
On the heavy A4 paper of 26mg, print the described printer ink of 2mg, as handling sample.
Described processing sample and 5g cupric oxide are loaded in mixture in silica tube.The silica tube that described processing sample and cupric oxide are housed is received on the vacuum system, and the limit is evacuated to 10 with the hair dryer heating edge
-2Handkerchief is forged with flame and is taken off.Silica tube is put in the retort furnace 900 ℃ of heating 5 hours, and cooling is taken out.Silica tube is put in the special sleeve pipe, received on the vacuum system, open low high vacuum switch, open sleeve piston and silica tube on the vacuum system, extracting vacuum to 10
-4Handkerchief.The configuration phlegma is enclosed within cold aboveground.Close vacuum piston, system is quiet vacuum state.Interrupt silica tube, open vacuum piston, capillary is taken away and is frozen foreign gas incessantly, closes sample piston, send mass spectrometric detection, and used mass spectrum is counted the MAT-252 gas isotope mass spectrograph that U.S. Finnigan mass spectrum company makes.
The carbonic acid gas of above-mentioned preparation is very pure, oxynitride, halogen and SO
3All can remove Deng interference.Wherein, oxidation operation CO
2And H
2O, partial oxidation copper is reduced into metallic copper in reactor, and this part metallic copper and decompose nitrogen oxides are nitrogen, and copper can also combine with sulphur and halogen and make carbonic acid gas very pure, and water and nitrogen are removed when purifying.
Utilize the aforesaid method repeated test, totally 6 times.The data that record will be aggregated in the table 1.
Embodiment 2
With abundance is that printer ink is prepared respectively in 1: 230 ratio described in 98% urea and the embodiment 1, and the standard pore membrane with the 0.2-0.4 micron filters then, makes the stable isotope anti-counterfeiting ink of 1: 230 ratio.
On the heavy A4 paper of 26mg, print the stable isotope anti-counterfeiting ink of described 1: 230 ratio of 2mg, as handling sample.Processing subsequently and embodiment 1 are identical, also test 6 times.
Embodiment 3
Ratio among the embodiment 2 is replaced with 1: 130, and other processing is identical.
Table 1 (institute's count off is according to the value that is relative international standard PDB)
By the data in the table 1 as can be known, the δ of each embodiment of 1: 230 and 1: 130 type be on the occasion of, but safety detection goes out the δ that each embodiment draws
13C ‰ value does not have and intersects, the data stability of surveying good, highly sensitive.
Claims (1)
1. anti-counterfeiting method for file, it is characterized in that, described file uses stable isotope anti-counterfeiting ink to print, and obtain the record abundance of the carbon 13 of described file by the mass spectrometric detection method, obtain treating the examination abundance of the carbon 13 of verification of contents with described mass spectrometric detection method, when described examination abundance is consistent with described record abundance, the described verification of contents for the treatment of is true basis, when described examination abundance is not consistent with described record abundance, the described verification of contents for the treatment of is originally pseudo-, described mass spectrometric detection method is to adopt the vacuum sealing high-temperature oxidation to obtain carbonic acid gas, then described carbonic acid gas is carried out mass spectrometric detection
Described vacuum sealing high-temperature oxidation is that sample and cupric oxide are loaded in mixture in reactor, obtains high vacuum, and 550-1000 ℃ was heated 4-24 hour,
Described stable isotope anti-counterfeiting ink is made up of the urea of printer ink and carbon containing 13, and the weight ratio of the urea of described printer ink and described carbon containing 13 is 100: 1-250: 1, and the isotopic abundance of the carbon 13 of the urea of described carbon containing 13 is greater than 90%.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200810224765 CN101463210B (en) | 2008-12-29 | 2008-12-29 | Stable isotope anti-counterfeiting ink and anti-counterfeiting method for file |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200810224765 CN101463210B (en) | 2008-12-29 | 2008-12-29 | Stable isotope anti-counterfeiting ink and anti-counterfeiting method for file |
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| Publication Number | Publication Date |
|---|---|
| CN101463210A CN101463210A (en) | 2009-06-24 |
| CN101463210B true CN101463210B (en) | 2011-10-26 |
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| CN 200810224765 Expired - Fee Related CN101463210B (en) | 2008-12-29 | 2008-12-29 | Stable isotope anti-counterfeiting ink and anti-counterfeiting method for file |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109943147A (en) * | 2018-11-21 | 2019-06-28 | 卢玉娟 | A kind of document security ink and its method for anti-counterfeit |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20030030558A1 (en) * | 2001-08-08 | 2003-02-13 | Stevenson Nigel R | Use of isotopes to provide information to an article |
| US20060035380A1 (en) * | 2004-03-12 | 2006-02-16 | L'oreal | Fake-proof marking of a composition |
| CN101074933A (en) * | 2007-06-15 | 2007-11-21 | 清华大学 | Stabilized isotopic anti-fogery method for painting and calligraphy pieces |
-
2008
- 2008-12-29 CN CN 200810224765 patent/CN101463210B/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20030030558A1 (en) * | 2001-08-08 | 2003-02-13 | Stevenson Nigel R | Use of isotopes to provide information to an article |
| US20060035380A1 (en) * | 2004-03-12 | 2006-02-16 | L'oreal | Fake-proof marking of a composition |
| CN101074933A (en) * | 2007-06-15 | 2007-11-21 | 清华大学 | Stabilized isotopic anti-fogery method for painting and calligraphy pieces |
Non-Patent Citations (1)
| Title |
|---|
| 沈吉等."静态灼烧氧化法制备有机碳同位素质谱分析样品".《分析测试技术与仪器》.1997,第3卷(第2期),第113-116页. |
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| CN101463210A (en) | 2009-06-24 |
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