WO2003053708A1 - Recorded matter having countermeasure against forging - Google Patents
Recorded matter having countermeasure against forging Download PDFInfo
- Publication number
- WO2003053708A1 WO2003053708A1 PCT/JP2002/013226 JP0213226W WO03053708A1 WO 2003053708 A1 WO2003053708 A1 WO 2003053708A1 JP 0213226 W JP0213226 W JP 0213226W WO 03053708 A1 WO03053708 A1 WO 03053708A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- overt
- covert
- recording
- record
- light
- Prior art date
Links
- 238000005242 forging Methods 0.000 title abstract 2
- 239000004973 liquid crystal related substance Substances 0.000 claims abstract description 61
- 238000000034 method Methods 0.000 claims abstract description 45
- 238000007639 printing Methods 0.000 claims abstract description 17
- 239000000463 material Substances 0.000 claims description 46
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- 238000005516 engineering process Methods 0.000 claims description 13
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- 238000004806 packaging method and process Methods 0.000 claims description 11
- 230000003595 spectral effect Effects 0.000 claims description 9
- 238000004519 manufacturing process Methods 0.000 claims description 8
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 7
- 229910052751 metal Inorganic materials 0.000 claims description 7
- 239000002184 metal Substances 0.000 claims description 7
- 239000010445 mica Substances 0.000 claims description 5
- 229910052618 mica group Inorganic materials 0.000 claims description 5
- 229910052814 silicon oxide Inorganic materials 0.000 claims description 5
- 239000011521 glass Substances 0.000 claims description 4
- 230000001678 irradiating effect Effects 0.000 claims description 4
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- 230000010287 polarization Effects 0.000 abstract 1
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- 229910044991 metal oxide Inorganic materials 0.000 description 5
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- ZCYVEMRRCGMTRW-UHFFFAOYSA-N 7553-56-2 Chemical compound [I] ZCYVEMRRCGMTRW-UHFFFAOYSA-N 0.000 description 2
- 239000004986 Cholesteric liquid crystals (ChLC) Substances 0.000 description 2
- UQSXHKLRYXJYBZ-UHFFFAOYSA-N Iron oxide Chemical compound [Fe]=O UQSXHKLRYXJYBZ-UHFFFAOYSA-N 0.000 description 2
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- 241000287828 Gallus gallus Species 0.000 description 1
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 description 1
- 239000011358 absorbing material Substances 0.000 description 1
- KTUFKADDDORSSI-UHFFFAOYSA-N acebutolol hydrochloride Chemical compound Cl.CCCC(=O)NC1=CC=C(OCC(O)CNC(C)C)C(C(C)=O)=C1 KTUFKADDDORSSI-UHFFFAOYSA-N 0.000 description 1
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41M—PRINTING, DUPLICATING, MARKING, OR COPYING PROCESSES; COLOUR PRINTING
- B41M3/00—Printing processes to produce particular kinds of printed work, e.g. patterns
- B41M3/14—Security printing
- B41M3/148—Transitory images, i.e. images only visible from certain viewing angles
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41M—PRINTING, DUPLICATING, MARKING, OR COPYING PROCESSES; COLOUR PRINTING
- B41M3/00—Printing processes to produce particular kinds of printed work, e.g. patterns
- B41M3/14—Security printing
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B42—BOOKBINDING; ALBUMS; FILES; SPECIAL PRINTED MATTER
- B42D—BOOKS; BOOK COVERS; LOOSE LEAVES; PRINTED MATTER CHARACTERISED BY IDENTIFICATION OR SECURITY FEATURES; PRINTED MATTER OF SPECIAL FORMAT OR STYLE NOT OTHERWISE PROVIDED FOR; DEVICES FOR USE THEREWITH AND NOT OTHERWISE PROVIDED FOR; MOVABLE-STRIP WRITING OR READING APPARATUS
- B42D25/00—Information-bearing cards or sheet-like structures characterised by identification or security features; Manufacture thereof
- B42D25/20—Information-bearing cards or sheet-like structures characterised by identification or security features; Manufacture thereof characterised by a particular use or purpose
- B42D25/29—Securities; Bank notes
-
- 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
- G01N21/21—Polarisation-affecting properties
-
- G—PHYSICS
- G07—CHECKING-DEVICES
- G07D—HANDLING OF COINS OR VALUABLE PAPERS, e.g. TESTING, SORTING BY DENOMINATIONS, COUNTING, DISPENSING, CHANGING OR DEPOSITING
- G07D7/00—Testing specially adapted to determine the identity or genuineness of valuable papers or for segregating those which are unacceptable, e.g. banknotes that are alien to a currency
- G07D7/06—Testing specially adapted to determine the identity or genuineness of valuable papers or for segregating those which are unacceptable, e.g. banknotes that are alien to a currency using wave or particle radiation
- G07D7/12—Visible light, infrared or ultraviolet radiation
- G07D7/128—Viewing devices
-
- G—PHYSICS
- G07—CHECKING-DEVICES
- G07D—HANDLING OF COINS OR VALUABLE PAPERS, e.g. TESTING, SORTING BY DENOMINATIONS, COUNTING, DISPENSING, CHANGING OR DEPOSITING
- G07D7/00—Testing specially adapted to determine the identity or genuineness of valuable papers or for segregating those which are unacceptable, e.g. banknotes that are alien to a currency
- G07D7/20—Testing patterns thereon
- G07D7/202—Testing patterns thereon using pattern matching
- G07D7/205—Matching spectral properties
-
- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
- G09F3/00—Labels, tag tickets, or similar identification or indication means; Seals; Postage or like stamps
- G09F3/02—Forms or constructions
- G09F3/0291—Labels or tickets undergoing a change under particular conditions, e.g. heat, radiation, passage of time
- G09F3/0292—Labels or tickets undergoing a change under particular conditions, e.g. heat, radiation, passage of time tamper indicating labels
-
- B42D2033/18—
-
- 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
- G01N21/21—Polarisation-affecting properties
- G01N2021/216—Polarisation-affecting properties using circular polarised light
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S428/00—Stock material or miscellaneous articles
- Y10S428/916—Fraud or tamper detecting
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/24—Structurally defined web or sheet [e.g., overall dimension, etc.]
- Y10T428/24355—Continuous and nonuniform or irregular surface on layer or component [e.g., roofing, etc.]
- Y10T428/24372—Particulate matter
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/24—Structurally defined web or sheet [e.g., overall dimension, etc.]
- Y10T428/24802—Discontinuous or differential coating, impregnation or bond [e.g., artwork, printing, retouched photograph, etc.]
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/24—Structurally defined web or sheet [e.g., overall dimension, etc.]
- Y10T428/24802—Discontinuous or differential coating, impregnation or bond [e.g., artwork, printing, retouched photograph, etc.]
- Y10T428/24893—Discontinuous or differential coating, impregnation or bond [e.g., artwork, printing, retouched photograph, etc.] including particulate material
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/25—Web or sheet containing structurally defined element or component and including a second component containing structurally defined particles
- Y10T428/252—Glass or ceramic [i.e., fired or glazed clay, cement, etc.] [porcelain, quartz, etc.]
Definitions
- the present invention relates to a recorded matter, for example, a printed matter, for which forgery prevention measures have been taken.
- a typical example of the overt technique is recording or printing using a color changing ink, which is disclosed in JP-A-8-324169, JP-A-9-254520, and JP-A-10-060303.
- the color-change ink has a characteristic that when white light is incident on the ink surface, the main wavelength of the reflected light changes depending on the incident angle (reflection angle). Therefore, the color of a surface printed with color changing ink changes as the viewing angle changes.
- a representative example of the covert technique is recording or printing with a surface treatment that provides optical recursion, which is disclosed in US Pat. No. 2,407,608 (JP-A-10-97308) and the like.
- Optical recursion is a reflection characteristic in which the incident angle and the reflection angle are almost the same, that is, a reflection characteristic in which the incident light is turned back and the reflected light returns to the light source.
- the part of the covert record cannot be identified with the exact same color as the surrounding area when viewed normally under natural light, but when viewed with special tools, it appears to be distinguished from the surrounding area.
- Both the opert and covert technologies require special inks or special processing processes, so records made with such technologies cannot be reproduced with simple color copies.
- an object of the present invention is to provide a countermeasure against counterfeit products so that a counterfeit product and a genuine product can be easily distinguished in the market, and where and what form the countermeasure against counterfeiting is applied is not easily understood in the field.
- Another object of the present invention is to provide a security label which is a label or a sticker suitable for being attached to a product or a product packaging, and which can be used for preventing forgery of a product or for authenticity judgment. .
- a recording in accordance with one aspect of the present invention is an overt notation formed by overt techniques. 6 and a covert record formed by the copart technique on the same recording medium surface.
- This record can be easily authenticated in the market by using the overt record, and even if a counterfeit product that imitates the overt record comes out, the authenticity can be judged using the overt record. Also, in this record, the synergistic effect of Obert and Kovert is obtained, in which the presence of the Obert record becomes ffl, and the presence of the covert is hardly noticed.
- the overt recording and the covert recording can be at least partially overlapped.
- the overt recording and the covert recording can be made different in a planar design such as the shape or size. Such an arrangement makes counterfeiting even more difficult.
- the overt recording is formed by, for example, overlaying a liquid crystal ink on a color change ink, it can be very difficult to forge.
- the covert recording can be formed by a light-retroreflective layer having transparent fine spheres arranged on a transparent reflective layer.
- overt recording and the covert recording are made exactly the same in the planar design such as the shape and size, and then stack them with their positions perfectly matched. Then, the category effect of the overt record may be exerted more effectively.
- the overt recording is formed by overlaying liquid crystal ink on the ground of a specific color
- the background area around the overt recording is formed by overlaying a liquid crystal ink on a base of another color
- a base of a specific color can also be formed by directly using a liquid crystal ink without overlapping it. In this way, the overt recording can also function as a covert recording.
- a security label according to another aspect of the present invention has an overt recording formed by overt technology and a covert recording formed by covert technology on the surface of one recording medium, and further has an adhesive layer, It can be attached to objects such as products or product packaging.
- overt recording color change can be caused depending on the observation angle by selective reflection of light.
- Covert records may be identifiable by a particular device or device.
- the overt recording may be performed using a liquid crystal material, or a material obtained by laminating a metal oxide layer and / or a metal with a thin mica glass layer and / or silicon oxide. it can.
- the covert record verifies the authenticity by comparing the spectral pattern of light reflected or transmitted by the irradiation of infrared light with the spectral pattern previously stored in a specific instrument or device. As can be determined, a material that reflects or transmits a specific spectral pattern of light with respect to infrared light can be included.
- the area of this security label can be less than 8 square centimeters.
- a cut may be made in one or more places of the security label so that the security label is broken and cannot be reused if it is to be peeled off after pasting it on the object. it can.
- an overt record is printed on the surface of the same recording medium by an overt technique, and a covert record is printed by a copart technique.
- the printing by the overpart technique is of a silk screen type.
- FIG. 1A and 1B are schematic diagrams of a print recording surface of a color changing ink according to the overt technology.
- FIG. 2 is a plan view showing a plane design of a main part of one embodiment of a recorded matter of the present invention.
- FIG. 3 is a plan view showing a plan design of a main part of another embodiment.
- FIG. 4 is a plan view showing a plane design of a main part of another embodiment.
- FIG. 5 is a plan view showing a plane design of a main part of still another embodiment.
- Figure 6 shows a cross section of the overt area 3 of the printed matter shown in Figure 2 or Figure 3 (for example,
- Sectional drawing which shows the structural example of the basic part (section along AA).
- FIG. 7 shows a cross section of the covert area 5 of the printed matter shown in FIG. 2 or FIG.
- Sectional drawing which shows the structural example of the basic part (section along the BB line).
- FIG. 8 is a cross-sectional view showing another structural example of the cross section of the overt region 3 of the printed matter shown in FIG. 2 or FIG.
- FIG. 9 is a cross-sectional view showing still another structural example of the cross section of the overt region 3 of the printed matter shown in FIG. 2 or FIG.
- FIG. 10 is a cross-sectional view showing a state in which an oververt formed using the liquid crystal ink shown in FIGS. 8 and 9 is observed through a circularly polarizing plate that transmits left-handed light.
- FIG. 11 is a cross-sectional view showing a state in which an oververt formed using the liquid crystal ink shown in FIGS. 8 and 9 is observed through a circularly polarizing plate that allows right-handed rotation to pass.
- FIG. 12 is a cross-sectional view showing a structural example of a basic portion of a cross-section (for example, a cross-section along C-C shown in FIG. 3) of a region where the overt region and the covert region shown in FIGS.
- FIG. 13 is a cross-sectional view showing another example of a cross-sectional structure of a region where the overt region and the covert region shown in FIGS. 3 to 5 overlap each other.
- FIG. 14 is a plan view of one embodiment of the security label of the present invention.
- FIG. 15 is a plan view of another embodiment of the security label of the present invention.
- FIG. 16 is a plan view of another embodiment of the security label of the present invention.
- FIG. 17 is a plan view of still another embodiment of the security label of the present invention.
- the overt recording formed by the overt technique (hereinafter, simply referred to as overt) and the covert recording formed by the covert technique (hereinafter, simply referred to as covert) are the same recording. Having on the surface of the medium.
- a record that causes a color change depending on the observation angle by selective reflection of light (hereinafter, referred to as a color change record) can be used as the overt.
- examples of a material that selectively reflects light include a liquid crystal material or a material in which a metal oxide layer, a metal, mica glass, silicon oxide, and the like are stacked. The purpose can be achieved by preparing and printing these materials as printing inks. Light selection We will add some explanation about reflection.
- Liquid crystal materials (especially cholesteric liquid crystals) have a twisted structure in which the molecular arrangement is little by little along the helical axis, and the liquid crystal as a whole has a helical structure. It is a well-known principle that such a structure has optical rotation, selective light scattering, circular dichroism, and the like. A specific example of such a material is BALSF's Palio Cara.
- PALIOCOLOR registered trademark
- a material in which a metal oxide layer, a metal, mica glass, and silicon oxide are laminated (hereinafter, referred to as a brilliant pigment) is reflected at an angle due to a difference in the refractive index of the laminated material. Because of the different wavelengths of light, they appear as color changes to the human eye.
- a pigment formed by laminating metal oxides such as silicon oxide, titanium oxide, aluminum oxide, and iron oxide on a base material with low light transmittance, such as flaky mica has an appropriate size.
- Laminate silica and a layer that reflects light, such as crushed material or metal and / or metal oxide, into a suitable size Refers to crushed material.
- a specific example of such an example is PALIOCROMPIGMENT (BA
- Figure 1 shows a schematic diagram of the recording surface of the color change ink.
- the color change ink can be printed by a normal printing method.
- the liquid crystal material and glitter pigment used for the color change ink are flat pigments 100, and must be arranged in a regular posture on the surface of the recording medium 200 during recording. Is preferred.
- the reflection angle of the reflected light 400 is kept constant with respect to the incident angle of the incident light 300.
- the color change of the color change record becomes large, which is preferable as an oververt.
- FIG. 1B when the plate-like pigments 100 are irregularly arranged on the surface of the recording medium 200, the reflected light 60 0 is reflected at different angles.
- the arrangement of the pigments may differ depending on the printing method. confirmed. For example, it was confirmed that the printing method by the silk screen method was suitable for bringing the arrangement of the flat pigments 100 closer to the state of FIG. 1A.
- Covert on the other hand, has records made by special recording methods that are visible, identifiable, and identifiable only with special equipment under sunlight or normal lighting. Can be adopted.
- a fluorescent light-phosphorescent light can be exemplified.
- These inks may be commercially available. In general, such an ink emits a recording pattern when irradiated with ultraviolet light, and is observed. For irradiating the ultraviolet light, for example, a lap lamp can be used. Reading cannot be performed because the recording pattern does not emit light from sunlight or fluorescent light.
- These inks are the recording positions of inks used in It can be printed in a different location from the printer.
- Another type of copart can be exemplified by recording using a recording method that provides optical recursion.
- One of the recording methods that provides optical recursion is, for example, a method in which a transparent reflective layer having a specific pattern is formed in a certain area, and an infinite number of transparent fine spheres are spread over the reflective layer to cover the area.
- the covert (pattern of the reflective layer) recorded by such a method that provides light reflexivity cannot be recognized by visual observation under natural light, but it is transmitted through an optical device that can emit strong light from the same direction as the line of sight. You can see it.
- the spectral waveform of the intensity of the reflected or transmitted light from that (or the light reflectance, light transmittance, or light absorption rate there) becomes a specific waveform.
- a covert recorded using ink containing an infrared absorbing (reflecting) material having an exceptionally high absorptivity (or reflectivity) for infrared light having a wavelength of 65500 nm or more can be used.
- the spectral pattern of the light reflected from the object in response to the irradiation of the infrared light and the infrared absorption (reflection) ink stored in the appraisal device in advance can be determined by collating with the correct reflected light spectrum pattern.
- the appraisal device absorbs infrared rays in advance.
- the spectrum pattern of the reflected light due to the infrared light of the ink is stored, and the reflected light spectrum pattern from the object is different from the reflected light spectrum pattern stored in the appraisal device.
- the object is confirmed, the object is determined to be a counterfeit, and when it is confirmed that the pattern is the same as the pattern recorded in the appraisal device, the object is determined to be a genuine article.
- the recording part of the overt technology can contain infrared reflection (reflection) ink as described above.
- FIG. 2 to FIG. 4 respectively show plan designs of main parts of three embodiments of the recorded matter of the present invention.
- the recordings 1 A, 1 B, and 1 C in FIGS. 2 to 4 are oververts recorded by the overt technique. Both the area 3 and the covert area 5 recorded by the covert technique are provided on the same recording medium surface.
- the overt area 3 and the covert area 5 are arranged in different places that do not overlap.
- the overt area 3 and the covert area 5 partially overlap.
- the overt area 3 and the covert area 5 are stacked so as to coincide in position.
- one of the overt area 3 and the covert area 5 may be arranged so as to include the other.
- a character “PRINT” is printed using, for example, color changing ink so as to have a special optical characteristic as an overt.
- the background portion other than the character "; PINTJ” in the overt area 3 does not have to have the optical characteristics of the overt, or as another overt which is distinguished from "PRINT", for example, a color of another color It may be printed using changing ink.
- only the background portion excluding the characters “; PRINTJ” may be printed so as to have Obert's special optical characteristics.
- the character “PRINT” or the background in the overt area 3 has a special optical characteristic, for example, a characteristic in which the color changes depending on the viewing angle only by the naked eye under natural light.
- the letters “GENUINE” are printed so as to have special optical characteristics as a covert, for example, optical recursiveness.
- the background part other than the character “GENUINE” in the copart area 5 does not need to have the special optical characteristics as a covert.
- only the background portion excluding the characters “GENUINE” may be printed so as to have the special optical characteristics of Koppart.
- the character "GENUINE” and the background look the same when viewed with the naked eye under natural light, so that the character "GENUINE” cannot be read.
- the character “GENUINE” in the covert area 5 can be read only when light that is stronger than the ambient light is irradiated from the same direction as the line of sight.
- covert region 5 and the background region 7 surrounding the covert region look the same only with the naked eye under natural light, so that the two cannot be distinguished. Therefore, it is not generally known whether or not the covert area 5 exists in the record 1, and where the covert area 5 exists in the record 1.
- the plan design of the overt area 3 and covert area 5 shown in Figs. 2 to 4 (i.e., the outer shape and size of the area itself, and the shape, size, layout, etc. of characters and figures recorded in that area) ) Can be freely determined.
- the patterns of the overt area 3 and the covert area 5 are different, for example, in terms of the size of the character or figure, the type, the arrangement, etc., as shown in the examples of FIGS. is there. This pattern difference makes the forgery process complicated and difficult.
- the arrangement of the overt region 3 and the covert region 5 has the advantage that the forgery method becomes extremely difficult.
- the oppart area 3 and the covert area 5 are arranged in completely different places, there is an advantage that a covert is hardly found.
- an overt is a large pattern that stands out, whereas a covert is small, difficult to find in a pattern and easy to find! / When placed in a location, the effect of the overt can be further enhanced.
- Covert is more difficult to find.
- FIG. 5 shows a plan view of a main part of another embodiment of the recorded matter according to the present invention.
- the oppart area 13 and the copart area 15 having exactly the same plane design are aligned in position.
- the character “: PRINT” has the special optical characteristic of “overt” and the background portion other than the character “PRENT” also has the special optical characteristic of covert. Only the background part without the optical properties, or conversely, except for the character “PRINT”, has the special optical properties of both Overt and Kovert. Or, the character “rpRINT” has the special optical characteristics of Obert, and the background part has the special optical characteristics of Covert, or vice versa.
- FIG. 6 shows a structural example of a basic portion of a cross section (for example, a cross section along the line AA in FIG. 2) of the over area 3 of the recorded matter shown in FIG. 2 or FIG.
- an overt character or graphic pattern (for example, “PRINT”) is printed on the surface of the base material 21 with the color changing ink 23.
- the color changing ink 23 for example, a liquid in which a flat pigment 25 such as a liquid crystal material or a brilliant pigment is mixed into a normal ink can be used.
- Printing with the color changing ink 23 is performed by a special printing method for aligning the direction of the surface of the flat pigment surface 25, for example, a silk screen method.
- the light incident on the surface of the color changing ink 23 is reflected by the internal flat pigment 25 and emerges as reflected light.
- a specific wavelength is selectively enhanced by interference between the reflected light on the upper surface of the flat pigment 25 and the reflected light on the lower surface.
- the emphasized wavelength depends on the angle of incidence. Therefore, as shown in FIG. 6, for example, when the white lights 27 and 31 enter from different incident angles, the respective reflected lights 29 and 33 look different colors. Therefore, the portion printed with the color change ink 23 looks different depending on the viewing angle.
- the reflected light 37, 41 of the white light 35, 39 incident on the part where such special printing has not been performed is the same color, so there is no color change depending on the viewing angle.
- FIG. 7 shows a cross section of the covert area 5 of the recorded matter shown in FIG. 2 or FIG. 2 shows a structural example of a basic portion (cross section taken along line BB).
- FIG. 7 is an example in which a covert is configured by a recording method that provides optical recursion.
- a transparent reflective layer 43 is formed on the surface of a base material 21 in a pattern of a covert character or figure (for example, “GENUINE”).
- countless transparent microspheres 45 are spread so as to cover the entire covert area 5 and fixed by an adhesive layer 47.
- a part of the lower surface of the microspheres 45 on the reflective layer 43 is covered with the reflective layer 43.
- the material of the reflective layer 42, the microspheres 45, and the adhesive layer 47 By selecting the material of the reflective layer 42, the microspheres 45, and the adhesive layer 47, the light passing through the microspheres 45 can be easily reflected on the surface of the microspheres 45 in contact with the reflective layer 43.
- the light transmitted through the microspheres 45 On the other hand, on the surface of the microspheres 45 that are in contact with the adhesive layer 43, the light transmitted through the microspheres 45 hardly reflects and goes out of the microspheres 45.
- the light 49 that enters the region where the reflective layer 43 is present enters the fine sphere 45, and a part of it enters the fine sphere 45.
- the light is reflected on the surface and becomes retroreflected light 51 returning to the direction in which the incident light 49 came.
- the remaining part of the incident light 49 exits the fine sphere 45 and is reflected by the surface of the substrate 21, and exits in a completely different direction from the incident light 49 (diffuse reflected light 5 3).
- the light 55 incident on the area where the reflective layer 43 does not exist enters the fine sphere 45, and almost all of it exits from the fine sphere 45 and is reflected on the surface of the base material 21.
- the incident light 55 exits in a completely different direction (diffuse reflected light 59).
- the retroreflected light 51 is mixed with other diffusely reflected light and is inconspicuous, so that Covert cannot be visually recognized.
- the covert area 5 is irradiated with strong light from the same direction as the line of sight, the light amount of the retroreflected light 51 becomes larger than the diffuse reflected light 53, so that the covert can be seen.
- FIG. 8 shows another example of the cross section of the overt area 3 of the recorded matter shown in FIG. 2 or FIG. You.
- FIG. 8 is an example in which an overt is formed using liquid crystal ink.
- a pattern eg, “PRINT”
- PRINT a pattern of an overt character or figure
- a liquid crystal ink 63 having circular dichroism coats the entire overt region 3.
- a normal colored ink may be used, the above-described color changing ink may be used, or a liquid crystal ink may be used.
- a cholesteric liquid crystal ink for example, PALIOCOLOR (registered trademark) of BASF
- optical characteristics such as optical rotation, selective light scattering, and circular dichroism
- the light 65 incident on the region of the specific ink 61 becomes left-handed rotation 67 and right-handed rotation 6 due to the circular dichroism of the liquid crystal ink 63.
- the left-handed rotation 67 is reflected by the liquid crystal ink 63, and the right-handed rotation 69 passes through the liquid crystal ink 63.
- the transmitted right-handed rotation 69 enters the specific ink 61, a part of which is absorbed, and the remaining part (having the color of the specific ink 61) 73 is reflected. Therefore, a combined color of the left-handed rotation 67 reflected by the liquid crystal ink 63 and the right-handed rotation 73 reflected by the specific ink 61 is observed by a human.
- the light 75 incident on the area where the specific ink 61 does not exist, for example, the area where the base material 21 can be seen, is left-rotated 7 7
- the right-handed rotation 79 is divided into two circularly polarized lights, the left-handed rotation 77 is reflected by the liquid crystal ink 63, and the right-handed rotation 79 is transmitted through the liquid crystal ink 63.
- the transmitted right-handed light 79 enters the substrate 21, a part of which is absorbed, and the remaining part (having the color of the substrate 21) 83 is reflected. Therefore, the combined color of the left-handed rotation 77 reflected by the liquid crystal ink 63 and the right-handed rotation 73 reflected by the base material 21 is observed by humans.
- the color of the specific ink 63 is different from the color of the substrate 21, the area of the specific ink 63 and the base The color observed by humans is different from the material 21 area. Moreover, the observed color is not simple but a color having a special optical effect due to the action of the liquid crystal ink 63. For example, if the specific ink 63 is black, the visible color has an iridescent effect. Further, when the specific ink 63 is a color changing ink, the color changing effect is added. In addition, when the specific ink 63 is a liquid crystal ink, a mirror effect appears. On the other hand, if the base material 21 is white, for example, a pearl color effect appears in the visible color. In any case, the color with the special effect obtained by the liquid crystal ink 63 cannot be reproduced by a simple color copy.
- FIG. 9 shows still another example of the cross section of the overt area 3 of the recorded matter shown in FIG. 2 or FIG.
- the example in FIG. 9 is also an example in which an overt is formed using liquid crystal ink.
- the specific ink 61 coats the entire overt area 3 on the surface of the base material 21.
- a pattern for example, “: PRINT”
- liquid crystal ink 63 having circular dichroism.
- the configuration shown in FIG. 8 and the configuration shown in FIG. 9 can be combined. That is, the pattern printed with the liquid ink 63 overlaid on the specific ink 61, the pattern printed with only the specific ink 61, and the liquid ink 63 overlaid on the base material 21
- the overt area may be designed by combining three types of patterns.
- the overt formed using the liquid crystal ink shown in FIGS. Due to the circular dichroism of the ink, it also has a function as a covert. This will be described with reference to FIGS. 10 and 11.
- FIG. 10 illustrates how the overt region formed using the liquid crystal ink 63 is viewed when viewed through the left circularly polarizing plate 101 that allows the left-handed light to selectively pass therethrough.
- FIG. 11 illustrates how the overt region formed using the liquid crystal ink 63 is viewed through the right circular polarizer 103 that selectively allows right-handed rotation. .
- the area coated with the liquid crystal ink 63 looks the same color regardless of the optical characteristics of the base (for example, the specific ink 61 or the base 21).
- the pattern printed with the specific ink 61 is not visible in the area coated with the liquid crystal ink 63. Therefore, the area coated with the liquid crystal ink 63 and the uncoated area (the area to which the directly reflected light 87 from the specific ink 61 comes) appear to be distinguished by different colors.
- the reflected light 67, 73, 77, 83 coming from the area coated with the liquid crystal ink 63 is one of the liquid crystal inks. Only the right-handed rotations 73 and 83 transmitted through 63 and reflected by the base are observed through the right circularly polarizing plate 103. Therefore, in the area coated with the liquid crystal ink 63, the pattern printed with the specific ink 61 and the pattern that is not so can be clearly distinguished. However, the pattern of the specific ink 61 coated with the liquid crystal ink 63 and the pattern of the specific ink 61 not coated are distinguished by the same color when passed through the right circular polarizer 103. Difficult to do.
- an oververt using liquid crystal ink also has a function as a covert. For example, if a pattern as shown in FIG. 5 is manufactured using a liquid crystal ink, it is automatically manufactured as an overt and a covert.
- the circularly polarizing plate can be prepared, for example, as follows. That is, a PVA film or the like is uniaxially stretched and dyed with iodine. If necessary, the dye may be dyed to a desired color with another dye. Further, a protective layer is provided so that iodine does not fly.
- a circular polarizer is made by laminating the 1 Z 4 wavelength film and the above film. The distinction between right-handed circularly polarized light and left-handed circularly polarized light is made by attaching a quarter-wave film at a 45 ° angle to the linearly polarized light and the linearly polarized light axis.
- Figure 12 shows the basic section of the cross section of the region where the overt regions 3, 13 shown in Figures 3 to 5 and the covert regions 5, 15 overlap (for example, the cross section along CC shown in Figure 3). An example of the structure is shown.
- a pattern of a character or a graphic of Obert is printed by a color change ink 23.
- a pattern of a character or a graphic of Covert is formed on the reflective layer 43.
- countless fine spheres 45 are spread so as to cover the entire coverage area, and fixed with an adhesive layer 47.
- the retroreflected light generated by the microspheres 45 and the reflective layer 43 is inconspicuous, and only the overt by the color changing ink 23 is recognized. It can be seen that the color changes depending on the viewing angle.
- the intensity of the retroreflected light described above is relatively increased, and the covert can be seen.
- FIG. 13 shows another structural example of a cross section (for example, a cross section along CC shown in FIG. 3) of the Obert-Covert overlap region shown in FIGS.
- a pattern such as an overt character or a graphic is printed on the surface of the base material 21 with a specific ink (such as a normal colored ink, a color changing ink or a liquid crystal ink) 61.
- the liquid crystal ink 63 coats the entire overt area.
- the reflective layer 43 a pattern of a character or a graphic of Covert is formed.
- Innumerable microspheres 45 are spread on the covert area so as to cover the entire covert area, and are fixed with an adhesive layer 47.
- the overt-covert overlap region configured in this manner, under natural light, the retroreflected light generated by the fine spheres 45 and the reflective layer 43 is inconspicuous, and therefore, the overcoat covered with the liquid crystal ink 63 (Pattern printed with ink 6 1) 1 Appears in a color with a special optical effect.
- the intensity of the above-mentioned retroreflected light relatively increases, and the covert (the pattern of the reflective layer 43) becomes visible.
- FIGS. 14 to 17 respectively show plan views of different embodiments of the security label of the present invention.
- These security labels are stickers that have an adhesive layer on one side and are used by attaching to the object (eg, various products) to be protected from counterfeiting itself or to the packaging of the object. Overt and covert are recorded on the surface of these security labels opposite to the adhesive layer. Affixing the sticker on which the overt and covert are recorded to the surface of the object or the packaging rather than recording the overt and covert on the surface of the object itself or the packaging itself lowers the manufacturing cost. It is desirable that such a security label has a function to prevent reuse, so that once it is affixed to an object and sold at a shop, it is not removed and reapplied to a counterfeit product.
- the adhesive strength or the adhesive performance of the adhesive layer is determined so that the adhesive ability is substantially lost once the sheet is peeled off.
- the adhesive used for the adhesive layer for example, an acrylic resin type or an epoxy type
- An example is a type of adhesive in which a resin having an isoskeleton is dissolved in a solvent, and the resin component undergoes oxidative polymerization when the solvent is dried.
- one or more cuts may be made in the security label to prevent reuse, for example, if the security label is torn off from the object or packaging, the security label may be torn or broken. it can. This cut can be set arbitrarily according to the size and shape of the label.
- Such a small security label has a low risk of damaging the appearance design of the object or the packaging of the object to which the label is attached, reduces the manufacturing cost of the label, and does not make the process of applying the label to the object difficult.
- the security label 200-1 shown in Fig. 14 is, for example, a circular sticker with a radius of 15 mm.
- the character "EPOON" portion 200_2 is an overt recorded by, for example, a color change ink using a liquid crystal material.
- This overt 200-2 is printed by, for example, a sinoreta screen type printing apparatus.
- the character "Genuine" portion 200-3 shown by a broken line is a covert printed by, for example, an offset printing apparatus using fluorescent ink. The covert 200-3 using this fluorescent ink cannot be recognized only by visual observation under natural light, but can be recognized when irradiated with ultraviolet light using black light.
- This security label 200-1 has, for example, cuts 200-4 inward from the outer edge at three locations. The length of the cut 200-4 is, for example, about 1/2 of the radius of the security label 200-1. If this security label 200-1 is applied to the object or its packaging, and then to be peeled off, the security label 200-0-4 is torn from the notch 200-4 and can be reused. Disappears.
- the security label 300-1 shown in FIG. 15 is, for example, a rectangular sticker of 20 mm in length and 40 mm in width.
- the character "EPOON" portion 300-2 is, for example, an overt printed by a silk-screen method using an ink containing a bright pigment.
- the ink used to print this Obert 300-2 contains an infrared absorbing material (for example, a material whose light absorption in the wavelength range of 65 O nm or more is much higher than in other wavelength ranges). .
- the inverter 300-2 when a specific light including an infrared ray is applied to the inverter 300-2, a reflected light having a specific spectral waveform is obtained, and the spectral waveform of the reflected light is represented by the spectrum
- the waveform pattern can be checked by a special appraisal device that stores the pattern in advance. Therefore, this overt 300-2 also functions as a covert.
- the character "Genuine" portion 300-3 shown by a broken line is a covert printed by offset printing using, for example, a phosphorescent ink. Covert 300-3 using this phosphorescent ink cannot be recognized only by visual observation under natural light, but can be recognized and recognized by, for example, irradiating it with ultraviolet light using a black light.
- An adhesive layer is provided on the back surface (not shown) of the security label 300-1. Notches 300-4 are provided at the four corners of the security label 300-1 so as to be broken when peeled off.
- the security label 400-1 shown in FIG. 16 is, for example, a diamond-shaped sticker having an area of 6 square cm.
- the character "MA OH" portion 400-2 is an overt recorded with, for example, a color-change ink containing a liquid crystal material.
- This overt 400-2 is printed by, for example, a silk screen printing device.
- a star-shaped figure portion 400-3 shown by a broken line is a covert printed by an offset printing apparatus using, for example, fluorescent ink.
- This covert 400-3 is viewed by irradiating ultraviolet rays using, for example, a black light. Can be recognized.
- An adhesive layer is provided on the back surface (not shown) of the security label 400-1. Further, notches 400-4 are provided at the upper two corners of the security label 400-1.
- the security labenore 500-1 shown in FIG. 17 is, for example, a star-shaped sticker with an area of 7.5 square cm.
- the character "LongLife" portion 500-2 is, for example, an overt recorded by a color changing ink including a liquid crystal material.
- This overt 500-2 is printed by, for example, an offset printing apparatus.
- the letter “E, P, ⁇ , 0, N” part 500-3 indicated by a broken line is a covert printed by an offset printing apparatus using, for example, a fluorescent ink.
- An adhesive layer is provided on the back surface (not shown) of the security label 500-1. Further, cuts 500-0-4 are provided at two concave corners of the security label 500-1.
- the recorded matter of the present invention applies to various kinds of products themselves made of various materials such as paper, plastic, metal, wood, etc., product packaging, or accessories such as a warranty attached to the product. This can be used to prevent counterfeiting of the product and to determine authenticity.
- the security label of the present invention can be used for preventing forgery of the product or for authenticity evaluation by attaching the security label to the above-mentioned various products, the packaging of those products, or the attachments of those products.
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Description
Claims
Priority Applications (13)
Application Number | Priority Date | Filing Date | Title |
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US10/469,282 US7601417B2 (en) | 2001-12-20 | 2002-12-18 | Recorded matter having countermeasure against forging |
KR1020037016750A KR100582815B1 (ko) | 2001-12-20 | 2002-12-18 | 기록물과 그것의 진위 판정 방법 |
CNB028060679A CN1314545C (zh) | 2001-12-20 | 2002-12-18 | 实施了防伪对策的记录物 |
DE60230445T DE60230445D1 (de) | 2001-12-20 | 2002-12-18 | Aufzeichnungsmaterie mit fälschungsschutz |
EP02805472A EP1457349B1 (en) | 2001-12-20 | 2002-12-18 | Recorded matter having countermeasure against forging |
JP2003554450A JP4048437B2 (ja) | 2001-12-20 | 2002-12-18 | 偽造対策を施した記録物 |
CA002438395A CA2438395A1 (en) | 2001-12-20 | 2002-12-18 | Recorded article with anti-counterfeit measures |
AU2002357597A AU2002357597B2 (en) | 2001-12-20 | 2002-12-18 | Recorded Article with Anti-Counterfeit Measures |
US11/286,223 US7408630B2 (en) | 2001-12-20 | 2005-11-23 | Recorded article with anti-counterfeit measures |
US11/286,208 US20060083903A1 (en) | 2001-12-20 | 2005-11-23 | Recorded article with anti-counterfeit measures |
US11/285,824 US20060073278A1 (en) | 2001-12-20 | 2005-11-23 | Recorded article with anti-counterfeit measures |
AU2008200805A AU2008200805B2 (en) | 2001-12-20 | 2008-02-21 | Recorded article with anti-counterfeit measures |
AU2010241216A AU2010241216B2 (en) | 2001-12-20 | 2010-11-03 | Recorded article with anti-counterfeit measures |
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
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JP2001/387116 | 2001-12-20 | ||
JP2001387116 | 2001-12-20 | ||
JP2002186721 | 2002-06-26 | ||
JP2002/186721 | 2002-06-26 |
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US11/286,208 Division US20060083903A1 (en) | 2001-12-20 | 2005-11-23 | Recorded article with anti-counterfeit measures |
US11/286,223 Division US7408630B2 (en) | 2001-12-20 | 2005-11-23 | Recorded article with anti-counterfeit measures |
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WO2003053708A1 true WO2003053708A1 (en) | 2003-07-03 |
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PCT/JP2002/013226 WO2003053708A1 (en) | 2001-12-20 | 2002-12-18 | Recorded matter having countermeasure against forging |
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US (4) | US7601417B2 (ja) |
EP (1) | EP1457349B1 (ja) |
JP (2) | JP4048437B2 (ja) |
KR (1) | KR100582815B1 (ja) |
CN (1) | CN1314545C (ja) |
AT (1) | ATE417739T1 (ja) |
AU (3) | AU2002357597B2 (ja) |
CA (1) | CA2438395A1 (ja) |
DE (1) | DE60230445D1 (ja) |
SG (1) | SG152037A1 (ja) |
TW (2) | TWI256349B (ja) |
WO (1) | WO2003053708A1 (ja) |
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- 2002-12-18 SG SG200406935-7A patent/SG152037A1/en unknown
- 2002-12-18 KR KR1020037016750A patent/KR100582815B1/ko active IP Right Grant
- 2002-12-18 EP EP02805472A patent/EP1457349B1/en not_active Expired - Lifetime
- 2002-12-18 WO PCT/JP2002/013226 patent/WO2003053708A1/ja active Application Filing
- 2002-12-18 DE DE60230445T patent/DE60230445D1/de not_active Expired - Lifetime
- 2002-12-18 CN CNB028060679A patent/CN1314545C/zh not_active Expired - Lifetime
- 2002-12-18 AU AU2002357597A patent/AU2002357597B2/en not_active Expired
- 2002-12-18 US US10/469,282 patent/US7601417B2/en not_active Expired - Lifetime
- 2002-12-18 AT AT02805472T patent/ATE417739T1/de not_active IP Right Cessation
- 2002-12-20 TW TW092136726A patent/TWI256349B/zh not_active IP Right Cessation
- 2002-12-20 TW TW091136882A patent/TWI256350B/zh not_active IP Right Cessation
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2005
- 2005-11-23 US US11/285,824 patent/US20060073278A1/en not_active Abandoned
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2007
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2008
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Cited By (4)
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EP1587047A1 (en) * | 2004-04-13 | 2005-10-19 | Illinois Tool Works Inc. | Optically variable tamper evident device |
WO2005114619A1 (en) * | 2004-05-20 | 2005-12-01 | Piero Angelo Maria Ferrari | Authentication label |
WO2006007745A1 (de) * | 2004-07-21 | 2006-01-26 | Landqart | Sicherheitsmerkmal und verfahren zu dessen herstellung |
JP2017097213A (ja) * | 2015-11-26 | 2017-06-01 | エクボ株式会社 | 右円偏光変換装置 |
Also Published As
Publication number | Publication date |
---|---|
CA2438395A1 (en) | 2003-07-03 |
EP1457349A1 (en) | 2004-09-15 |
SG152037A1 (en) | 2009-05-29 |
KR100582815B1 (ko) | 2006-05-23 |
TWI256349B (en) | 2006-06-11 |
TW200407229A (en) | 2004-05-16 |
US7601417B2 (en) | 2009-10-13 |
TWI256350B (en) | 2006-06-11 |
EP1457349A4 (en) | 2006-02-01 |
JP4048437B2 (ja) | 2008-02-20 |
CN1494486A (zh) | 2004-05-05 |
EP1457349B1 (en) | 2008-12-17 |
US20060082761A1 (en) | 2006-04-20 |
AU2010241216A1 (en) | 2010-11-25 |
JP2008037096A (ja) | 2008-02-21 |
US20060073278A1 (en) | 2006-04-06 |
AU2010241216B2 (en) | 2012-06-14 |
DE60230445D1 (de) | 2009-01-29 |
KR20040010771A (ko) | 2004-01-31 |
AU2002357597B2 (en) | 2008-04-10 |
JPWO2003053708A1 (ja) | 2005-04-28 |
US7408630B2 (en) | 2008-08-05 |
AU2008200805A1 (en) | 2008-03-13 |
AU2002357597A1 (en) | 2003-07-09 |
TW200301195A (en) | 2003-07-01 |
US20040151880A1 (en) | 2004-08-05 |
ATE417739T1 (de) | 2009-01-15 |
AU2008200805B2 (en) | 2010-12-16 |
CN1314545C (zh) | 2007-05-09 |
US20060083903A1 (en) | 2006-04-20 |
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