CN112394045A - Anti-counterfeiting method for identifying polymer safety mark - Google Patents
Anti-counterfeiting method for identifying polymer safety mark Download PDFInfo
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- 238000000034 method Methods 0.000 title claims abstract description 35
- 229920000642 polymer Polymers 0.000 title claims abstract description 10
- 238000004519 manufacturing process Methods 0.000 claims abstract description 58
- 239000000463 material Substances 0.000 claims abstract description 32
- 238000007726 management method Methods 0.000 claims abstract description 11
- 239000002861 polymer material Substances 0.000 claims description 19
- 238000001228 spectrum Methods 0.000 claims description 11
- 238000002834 transmittance Methods 0.000 claims description 10
- 238000000576 coating method Methods 0.000 claims description 8
- 239000011248 coating agent Substances 0.000 claims description 7
- 238000000411 transmission spectrum Methods 0.000 claims description 7
- 230000001678 irradiating effect Effects 0.000 claims description 6
- 238000001514 detection method Methods 0.000 claims description 5
- 230000035515 penetration Effects 0.000 claims description 5
- 239000007788 liquid Substances 0.000 claims description 4
- 238000002513 implantation Methods 0.000 claims description 3
- 238000000985 reflectance spectrum Methods 0.000 claims description 3
- 238000004026 adhesive bonding Methods 0.000 claims 1
- 230000000694 effects Effects 0.000 abstract description 10
- 238000010183 spectrum analysis Methods 0.000 abstract description 3
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 12
- 239000003822 epoxy resin Substances 0.000 description 12
- 229920000647 polyepoxide Polymers 0.000 description 12
- 239000000741 silica gel Substances 0.000 description 12
- 229910002027 silica gel Inorganic materials 0.000 description 12
- 238000005516 engineering process Methods 0.000 description 8
- 235000014101 wine Nutrition 0.000 description 8
- 229920003229 poly(methyl methacrylate) Polymers 0.000 description 6
- 239000004926 polymethyl methacrylate Substances 0.000 description 6
- 238000002329 infrared spectrum Methods 0.000 description 5
- 239000004698 Polyethylene Substances 0.000 description 3
- 229920000573 polyethylene Polymers 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 238000002474 experimental method Methods 0.000 description 2
- 239000003292 glue Substances 0.000 description 2
- 239000007943 implant Substances 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- -1 Polyethylene Polymers 0.000 description 1
- 239000003153 chemical reaction reagent Substances 0.000 description 1
- 239000000084 colloidal system Substances 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000005284 excitation Effects 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 238000002310 reflectometry Methods 0.000 description 1
- 230000010076 replication Effects 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000012780 transparent material Substances 0.000 description 1
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/17—Systems in which incident light is modified in accordance with the properties of the material investigated
- G01N21/25—Colour; Spectral properties, i.e. comparison of effect of material on the light at two or more different wavelengths or wavelength bands
- G01N21/31—Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry
- G01N21/35—Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry using infrared light
- G01N21/359—Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry using infrared light using near infrared light
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Abstract
The invention belongs to the technical field of anti-counterfeiting, and discloses an anti-counterfeiting method for identifying a polymer security mark. The invention utilizes the principle that invisible near infrared spectral analysis can detect the material components, utilizes a light source of invisible infrared wave band to irradiate the safety mark of the product, utilizes production management to link the product with the information of different safety marks and store the information into a cloud end at the product production end, utilizes an invisible infrared spectrometer to identify the safety mark of the product at the client end and compares the information with the product safety mark information at the production end so as to achieve the effect of identifying the authenticity of the product.
Description
Technical Field
The invention belongs to the technical field of anti-counterfeiting, and relates to an anti-counterfeiting method for identifying a polymer security mark.
Background
The invisible near infrared spectrum detection technology is a technology for identifying material components in a mode of transmitting light reflection/excitation/penetration and the like, and the technology has the characteristics of rapidness and no damage and can be effectively used as an object identification mode.
At present, due to the advancement of science and technology and the development of free economy, the proportion of civil counterfeits is increased, and a large amount of counterfeits are distributed to markets, such as wines, famous brand bags, expensive luxury goods and the like.
The existing anti-counterfeiting technologies comprise an RFID technology, chemical color-changing ink, relief printing, ultraviolet fluorescent powder and the like; however, most of the existing anti-counterfeiting technologies have the possibility that the security mark is easy to counterfeit or the cost of the anti-counterfeiting mark is too high, so that the technologies are not easy to popularize and use.
Disclosure of Invention
In order to overcome the defects of the prior art, the invention provides an anti-counterfeiting method for identifying a polymer security mark, which is a method for identifying the anti-counterfeiting security mark by using near infrared spectrum detection; because the components of the polymer material are different, the transmittance and the reflectivity of the polymer material in a near infrared light wave band can be obviously changed, the visible light still maintains a penetration state and is difficult to identify by naked eyes, in the anti-counterfeiting application, different spectrums can be obtained as long as the material components of the safety mark are changed, if the safety marks with different material components are corresponding to products in a specific production batch through a production management method, unique safety information can be formed, the true anti-counterfeiting effect is achieved, and the anti-counterfeiting method can be widely applied to various products with anti-counterfeiting requirements; the method is convenient for the customers to use and identify, and has practicability and popularization.
The above purpose of the invention is realized by the following technical scheme:
an anti-counterfeiting method for authenticating a polymeric security marking; comprises a safety mark, a near infrared light source and a near infrared spectrometer; the safety mark is physically connected to the anti-counterfeiting object according to a production management method, wherein the safety mark can be a polymer material; irradiating a near infrared light source to measure and obtain a safety mark information parameter;
the anti-counterfeiting method comprises the following steps:
a. illuminating the security mark with a near infrared light source;
b. measuring the transmittance or reflectance spectrum of the near infrared light passing through the security mark;
c. comparing the measured penetration rate spectrum of the security mark with the known security mark information parameters of the anti-counterfeiting object;
d. and (5) performing authenticity identification according to the comparison result of the transmittance spectrum.
Furthermore, the light emitting wavelength of the near infrared light source is between 700 and 2500 nm;
furthermore, the detection spectrum wavelength range of the near infrared spectrometer is 700-2500 nm;
furthermore, the production management method is to distinguish the anti-counterfeiting objects according to the production date/batch;
further, the average transmittance of the polymer material at 700-2500nm is more than 10 percent;
further, the polymer material has a peak transmittance of more than 20% at 700-2500 nm;
furthermore, the security mark can be coated with different liquid polymer materials and become different security marks according to different material cost ratios of coating;
further, the average transmittance at 700-2500nm of the coated liquid polymer material is greater than 10%, and the peak transmittance at 700-2500nm is greater than 20%.
Furthermore, the physical connection comprises the modes of implantation, embedding, adhesion, bonding and the like;
furthermore, the safety mark is formed by randomly arranging and combining different materials.
The invention utilizes the principle that invisible near infrared spectral analysis can detect the material components, utilizes a light source of invisible infrared wave band to irradiate the safety mark of the product, utilizes production management to link the product with the information of different safety marks and store the information into a cloud end at the product production end, utilizes an invisible infrared spectrometer to identify the safety mark of the product at the client end and compares the information with the product safety mark information at the production end so as to achieve the effect of identifying the authenticity of the product.
The invention uses the production information available in the production date/batch/model of the product to link different safety marks at the production end, and uses the manufacturing method to physically connect the safety marks with the product in the ways of implantation/embedding/bonding according to different production information at the production end.
The security mark can be a polymer material which is transparent in a visible light wave band, and comprises but is not limited to PC/PVC/PMMA and the like; in order to increase the types of the spectrum information of the security mark, materials such as silica gel/epoxy resin can be coated on the polymer material, so as to achieve the effect of changing the near infrared light transmittance spectrum of the security mark. The polymer material treated by the coating is matched with different coatings by utilizing different random combination components of the polymer material, and the security mark is embedded into a product in the production process of an anti-counterfeiting article, so that a unique identifiable anti-counterfeiting effect is achieved.
By adopting the method, the effect that each batch of products have different safety marks can be achieved, and because the safety marks are made of polymer materials, if the components of the materials are slightly different, the materials have obvious change in a near infrared spectrum; therefore, by controlling the combination of different materials and changing the proportion/type of the coating colloid, a great variety of safety marks can be combined. Because the spectrum is sensitive to composition, the security mark is made in batches that vary slightly from material to material, making it difficult to copy a completely consistent security mark. And because the production batch information is mastered at the manufacturer, a replicator cannot easily obtain the production batch information, even if the safety mark is replicated, the production batch information cannot be correctly corresponding to the production batch information, and the effect of complete replication cannot be achieved.
Compared with the prior art, the invention has the beneficial effects that:
the invention utilizes the principle that invisible near infrared spectral analysis can detect the components of substances; illuminating the security mark of the product with a light source of an invisible infrared band; and the product and the information of different safety marks are linked and stored in the cloud end by using production management at a product production end, the safety marks of the product are identified by using an invisible infrared spectrometer at a client end and are compared with the product safety mark information at the production end, so that the effect of identifying the authenticity of the product is achieved.
By utilizing the anti-counterfeiting method provided by the invention, the security mark can be manufactured at very low cost; and because the visible light transparent polymer variety is very many, the safety mark can be designed to be visible light transparent, even if the solid polymer material (such as one or two of PC/PMMA/PVC random combination, etc.) is coated with transparent glue material (such as one or two of silica gel/epoxy resin random combination), certain light transmittance can be maintained, and the difference can be hardly distinguished by naked eyes.
The method of the invention can also utilize the production management method to implant/embed different safety marks according to the date/batch number in the production flow of the product, and through the development of the current internet, consumers can easily obtain the production information through the mobile device to compare the authenticity of the safety marks, thereby achieving the purpose of identifying the authenticity of the product. The method is simple, is beneficial to consumers to distinguish true from false by themselves, is not easy to imitate, and is an anti-counterfeiting method which has low cost, convenient use and popularization and good effect for manufacturers and clients.
Drawings
FIG. 1 is an overall schematic diagram of the anti-counterfeiting method of the invention.
Fig. 2 is a near infrared spectrum of different security marking materials.
Detailed Description
The invention is described in more detail below with reference to specific examples, without limiting the scope of the invention. Unless otherwise specified, the experimental methods adopted by the invention are all conventional methods, and experimental equipment, materials, reagents and the like used in the experimental method can be obtained from commercial sources.
Example 1
An anti-counterfeiting method for authenticating a polymeric security marking; comprises an anti-counterfeiting product, a security mark, a near infrared spectrometer, a mobile device and a cloud end; irradiating a near infrared light source to measure and obtain correct safety mark information parameters; the correct security mark information is on any carrier such as a manufacturer's cloud or product specification;
the specific identification method is applied to product anti-counterfeiting as follows:
a. a consumer scans the two-dimensional code of the product by using a mobile device, obtains a product production batch through a manufacturer cloud, and obtains correct security mark information;
b. a consumer connects the near-infrared spectrometer through the Bluetooth and carries out safety mark identification on the product by using the spectrometer to obtain product safety mark information;
c. and the mobile device software compares the safety mark information of the cloud end and the spectrometer end to confirm the authenticity of the product.
The product takes the tail numbers of production batches, different polymers are matched to be used as safety marks (as shown in table 1), the tail numbers of the production batches are 0, 4 and 8, the tail numbers of the production batches are PC material films to be used as production marks, and the tail numbers of the production batches are 1, 5 and 9, the tail numbers of the production batches are PVC material films to be used as production marks; the tail numbers of the production batches are 2 and 6, and PMMA material films are used as production marks; the tail numbers of production batches are 3 and 7, and a PC + PVC double-layer material film is used as a production mark; because the near infrared spectrum is very sensitive to the material components, the spectrum can be different (as shown in fig. 2) as long as the components of the polymer material are changed or the coated glue material is changed, so that the spectrum of each batch of the security marks is slightly different and extremely difficult to copy and quit ten thousand steps, even if a single security mark is copied, a copier can not obtain the information of the production batch and implant the corresponding security mark on the product, thereby achieving the effect of locking the code.
TABLE 1 different Security marking materials corresponding to different production lots
| Production batch end number | Security marking material |
| 0 | PC |
| 1 | PVC |
| 2 | PMMA |
| 3 | PC+PVC |
| 4 | PC |
| 5 | PVC |
| 6 | PMMA |
| 7 | PC+PVC |
| 8 | PC |
| 9 | PVC |
Example 2
The method for identifying the authenticity of the bottled wine by using the technical scheme of the invention; comprises an anti-counterfeiting product (bottled wine), a safety mark (bottle cap), a near infrared spectrometer, a mobile device and a cloud end; irradiating a near infrared light source to measure and obtain correct safety mark information parameters; the correct security mark information is on any carrier such as a manufacturer's cloud or product specification;
the specific identification method is applied to product anti-counterfeiting as follows:
a. in the process of making bottled wine, manufacturers make bottle caps based on components of Polyethylene (PE) materials, and make a plurality of bottle caps coated with different transparent materials on the outer sides of the bottle caps, such as coating epoxy resin/silica gel/epoxy resin and silica gel, and match different batches of wine with different material bottle caps in the production process, as shown in Table 2;
TABLE 2 bottle cap table of wine matching with different materials for different production batches
| Production batch end number | Coating material for bottle cap |
| 0 | Epoxy resin |
| 1 | Silica gel |
| 2 | Silica gel: 1:1 epoxy resin |
| 3 | Silica gel: epoxy resin 3:1 |
| 4 | Silica gel: 1:3 epoxy resin |
| 5 | Silica gel: epoxy resin 5:1 |
| 6 | Silica gel: epoxy resin 1:5 |
| 7 | Epoxy resin |
| 8 | Silica gel |
| 9 | Silica gel: 1:3 epoxy resin |
b. A consumer scans the two-dimensional code of the bottled wine outer package by using a mobile device, obtains a product production batch through a manufacturer cloud, and obtains correct safety mark (bottle cap) information;
c. the consumer connects the near infrared spectrometer through the mobile device bluetooth, and utilizes the spectrometer to identify the bottled wine bottle cap, obtain the product safety mark information;
d. and the mobile device software compares the safety mark information of the cloud end and the spectrometer end to confirm the authenticity of the product.
Example 3
The technical scheme of the invention is utilized and the specific method for identifying the authenticity of the lamp by the micro spectrometer of the mobile device is integrated; comprises an anti-counterfeiting product (lamp), a safety mark (lampshade), a mobile device with a miniature near-infrared spectrometer and a cloud end; irradiating a near infrared light source to measure and obtain correct safety mark information parameters; the correct security mark information is on any carrier such as a manufacturer's cloud or product specification;
the specific identification method is applied to product anti-counterfeiting as follows:
a. during the process of manufacturing lamps, manufacturers manufacture a plurality of lampshades made of different materials and having the same appearance, the lampshade material comprises one or more polymer materials of PE/PVC/PET/PMMA/PC, and lamps in different production batches are matched with lampshades made of different materials during the production process
b. A consumer scans the two-dimensional code of the external package of the lamp by using a mobile device comprising a micro spectrometer, obtains a product production batch through a manufacturer cloud, and obtains correct safety mark information;
c. the consumer identifies the lamp through the mobile device including the micro spectrometer to obtain the product safety mark information;
d. and the mobile device software compares the safety mark information of the cloud end and the spectrometer end to confirm the authenticity of the product.
The embodiments described above are merely preferred embodiments of the invention, rather than all possible embodiments of the invention. Any obvious modifications to the above would be obvious to those of ordinary skill in the art, but would not bring the invention so modified beyond the spirit and scope of the present invention.
Claims (9)
1. An anti-counterfeiting method for identifying a polymer safety mark is characterized by comprising the steps of physically connecting the safety mark, a near infrared light source, a near infrared spectrometer and the safety mark on an anti-counterfeiting object according to a production management method, wherein the safety mark is a polymer material; irradiating a near infrared light source to measure and obtain a safety mark information parameter;
the anti-counterfeiting method comprises the following steps:
a. illuminating the security mark with a near infrared light source;
b. measuring the transmittance or reflectance spectrum of the near infrared light passing through the security mark;
c. comparing the measured penetration rate spectrum of the security mark with the known security mark information parameters of the anti-counterfeiting object;
d. and (5) performing authenticity identification according to the comparison result of the transmittance spectrum.
2. The anti-counterfeit method according to claim 1, wherein the near infrared light source has a wavelength of about 700-; the near-infrared spectrometer has a detection spectrum wavelength range of 700-2500 nm.
3. The method of claim 1, wherein the production management method is to distinguish the object to be protected from forgery according to production date/lot.
4. The anti-counterfeit method according to claim 1, wherein the average transmittance of the polymer material at 700-2500nm is greater than 10%; its peak transmittance at 700-2500nm is > 20%.
5. An anti-counterfeiting method for identifying a polymer safety mark is characterized by comprising the safety mark, a near infrared light source and a near infrared spectrometer; the security mark is physically connected to the anti-counterfeiting object according to a production management method, wherein the security mark is coated with different liquid polymer materials and becomes different security marks according to different material cost ratios of the coating; irradiating a near infrared light source to measure and obtain a safety mark information parameter;
the anti-counterfeiting method comprises the following steps:
a. illuminating the security mark with a near infrared light source;
b. measuring the transmittance or reflectance spectrum of the near infrared light passing through the security mark;
c. comparing the measured penetration rate spectrum of the security mark with the known security mark parameters of the anti-counterfeiting object;
d. and (5) performing authenticity identification according to the comparison result of the transmittance spectrum.
6. The anti-counterfeit method according to claim 5, wherein the near infrared light source has a wavelength of about 700-; the near-infrared spectrometer has a detection spectrum wavelength range of 700-2500 nm; the production management method is to distinguish the anti-counterfeiting objects according to the production date/batch.
7. The anti-counterfeit method for authenticating polymer security mark as described in claim 5, wherein said coating with different liquid polymer materials has an average transmittance at 700-2500nm of > 10% and a peak transmittance at 700-2500nm of > 20%.
8. A security method of authenticating a polymeric security device as claimed in claim 1 or claim 5 wherein said physical attachment comprises any one of implantation, embedding, bonding and gluing.
9. Use of an anti-counterfeiting method for authenticating a polymeric security marking according to claim 1 or claim 5 for product anti-counterfeiting.
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