CN2692772Y - Laser gold stamping film with information hidden function - Google Patents
Laser gold stamping film with information hidden function Download PDFInfo
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- CN2692772Y CN2692772Y CN 200420024972 CN200420024972U CN2692772Y CN 2692772 Y CN2692772 Y CN 2692772Y CN 200420024972 CN200420024972 CN 200420024972 CN 200420024972 U CN200420024972 U CN 200420024972U CN 2692772 Y CN2692772 Y CN 2692772Y
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- gold stamping
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Abstract
The utility model relates to a laser gold stamping film with information hidden function. The utility model is a multilayer structure, comprising a base material layer, a separating layer, an information transferring layer, a reflecting layer and a hot melt bonding layer. The utility model is characterized in that the information transferring layer is stamped with phase cell array with binary bit phase structure. The utility model has information hidden function, easy information decoding and high reproduced image brightness; the counterfeit deterrence effect is reinforced. Meanwhile, the utility model doesn't alter the producing process of laser gold stamping material, so producing cost is not increased.
Description
Technical field
The utility model relates to a kind of information and carries and anti-fake product, is specifically related to a kind of gold stamping film of laser that carries information with Stealth Modus.
Background technology
Product false proof is the problem that people are concerned about very much always.In recent years, laser holography has obtained successful popularization on laser anti-counterfeit and laser anti-counterfeit packing, owing to have laser image, can play effect false proof and decoration simultaneously, the laser bronzing material has obtained to use widely, has progressively produced an emerging industry.The gold stamping film of existing laser, usually constitute by PET base material, separating layer, information transfer layer, reflection horizon and hot melt adhesive layer, on the information transfer layer wherein, mold pressing have a laser straight line interference fringe of embossment structure, this interference fringe is interfered formation by two bundle coherent lasers, embossment structure is the sinusoidal pattern structure, and fringe period is at 0.8～1.5 micron.In the gold stamping film of the laser of this structure, the effect of the interference fringe on the information transfer layer is chromatic dispersion, and the optical diffraction that is about to different wave length comes, and forms the rainbow effect on imaging surface.This technology was once once playing good anti-fake effect, but along with the development of technology, the counterfeiter begins to make false laser anti-counterfeit tag, makes its antiforge function descend to some extent.
Prevent that the better idea of palming off from being, carry out Information hiding in above-mentioned wrappage, and the application that will put it over then can not change the method for original packages printing, thereby avoid the excessive rising of cost.In laser hologram is learned, can carry out reproduction under recording of information (hiding) and the laser based on the Fresnel hologram, the Fresnel hologram forms with diffuse reflection thing light and the interference of plane reference light, because the restriction of recording mode, the Fresnel hologram has several shortcomings, first, owing to need the conjugation reference light to reproduce, hidden image only could reproduce under the angle of appointment, uses inconvenience, second, because Fresnel hologram interference fringe is very shallow, diffraction efficiency very low (＜5%), simultaneously, reproduction as if space localization, through after the gold stamping processing, the reproduction that very difficult formation hides Info, the 3rd, the Fresnel hologram is to adopt traditional interference technique to make, it is a kind of analog optical technology, at present, can't combine with digital technology effectively, the dirigibility of Information hiding is relatively poor.Thereby, be difficult to obtain to have the gold stamping film of laser of better information hidden function based on the Fresnel hologram.Only changing has the structure of the information transfer layer in the laser bronzing material now, just might obtain to have the material of information hidden function, thereby realizes false proof preferably.
Summary of the invention
The utility model purpose provides a kind of gold stamping film of laser with information hidden function, to be suitable for the packing of product, realizes antiforge function.
For achieving the above object, the technical solution adopted in the utility model is: a kind of gold stamping film of laser with information hidden function, be sandwich construction, comprise substrate layer, separating layer, information transfer layer, reflection horizon and hot melt adhesive layer, described information transfer layer patrix is pressed with the position facies unit array of binary phase structure.
In the technique scheme, described " information transfer layer " in fact constituted a kind of binary optical elements because mold pressing has the position facies unit array of binary phase structure.The binary optical elements of laser shaping is a kind of phase-type device, directly can not see the information of hiding in the device with eyes, must be by the mode of laser corrugated conversion, information could be come out in spatial reproduction, diffraction efficiency height, volume are little because it has, flexible design, be convenient to advantages such as integrated, become the important research field of the spacing shaping technology of light beam, and binary optical elements is mainly used in beam shaping at present, does not see the report that binary optical elements is used for the laser bronzing material.
Make above-mentioned material of the present utility model, the pictograph information that needs can be hidden is as known output light field, obtaining the binary position by Converse solved mode distributes mutually, with Information hiding in the binary phase structure, be made into embossment and distribute, utilize mould pressing technology that embossment is distributed at last and be produced on the bronzing material.Use laser beam,, can see the image of reproduction at the place, far field for example with the semiconductor laser that the glows gold stamping film that throws light on.
In the technique scheme, the minimum bit facies unit of described binary phase structure is of a size of 3～20 microns.
In the technique scheme, institute's rheme facies unit can be with the staircase structural model that single beam laser is directly write or electron-beam direct writing forms, and comprises two ledge structures, 4 ledge structures, or 8 ledge structures.
Further technical scheme can raise at described binary phase structure and be shaped on interference fringe.
Perhaps, the zone mold pressing of described information transfer layer top has interference fringe, and another part zone mold pressing has the position facies unit array of binary phase structure.
Because the technique scheme utilization, the utility model compared with prior art has following advantage:
1. be pressed with the position facies unit array of binary phase structure owing to the utility model information transfer layer patrix, thereby possessed information hidden function, strengthened antifalse effect;
2. binary phase structure of the present utility model is a relief type, does not change the production run of laser bronzing material, thereby can not increase production cost;
3. the utility model only need adopt laser pen or similar laser illumination can realize the reproduction of hidden image or literal, and information decoding is easy;
4. the brightness height of reproduced image, diffraction efficiency＞20%, after gold stamping process, reproduced image can be observed under common lighting environment;
5. because the binary phase structure is a kind of phase hologram in essence, even the damage ratio reaches 50% of entire image on image, still can reveals again and hide Info, the brightness that only is information reproduction is with doing reducing and descending of area.
Description of drawings
Accompanying drawing 1 is the structural representation of the utility model embodiment one;
Accompanying drawing 2 is the schematic top plan view of information transfer layer among Fig. 1;
Accompanying drawing 3 is that anaglyph figure is amplified in the part of information transfer layer among Fig. 1;
Accompanying drawing 4 is the diffraction mode synoptic diagram of the product of embodiment one when using;
Accompanying drawing 5 is the synoptic diagram of Information hiding and reproduction among the embodiment one;
Accompanying drawing 6 is for being hidden the type synoptic diagram of image among the embodiment one;
Accompanying drawing 7 is an information regeneration synoptic diagram among the embodiment two.
Wherein: [1], substrate layer; [2], separating layer; [3], information transfer layer; [4], reflection horizon; [5], hot melt adhesive layer; [6], wrappage; [7], incoming laser beam; [8], information reproduction; [9], position phase key.
Embodiment
Below in conjunction with drawings and Examples the utility model is further described:
Embodiment one: referring to accompanying drawing 1 to shown in the accompanying drawing 6, a kind of gold stamping film of laser with information hidden function, be sandwich construction, comprise substrate layer 1, separating layer 2, information transfer layer 3, reflection horizon 4 and hot melt adhesive layer 5, described information transfer layer 3 patrix are pressed with the position facies unit array of binary phase structure, its minimum bit facies unit is of a size of 3～20 microns, and institute's rheme facies unit is two staircase structural models of directly writing formation with single beam laser.
Accompanying drawing 4 is that present embodiment is bonded in the structural representation when using on the wrappage 6, and wrappage wherein can be paper, also can be plastics.
When present embodiment was made, the pictograph information that will need earlier to hide,, was obtained the binary position and is distributed mutually by Converse solved mode as a of accompanying drawing 5 as known output light field, as the b of accompanying drawing 5, with Information hiding in the binary phase structure; Use digital laser direct-write photoetching technology and electrocasting method again, finally make metal nickel plate, embossment structure (being designated hereinafter simply as P) is embossed on the bronzing material with embossment structure; On phase structure P, through diffraction of light, the information reproduction of exporting in the far field 8 (two ledge structures) is shown in the c of accompanying drawing 5 with laser beam irradiation.In the present embodiment, also can adopt the phase structure with 4,8 steps, the image of then scheming among the c only has one.
Size dimension after hidden image reproduces, depend on the size of phase coding image minimum unit and the Wavelength of Laser of use, for example, constitute phase coding figure with 256 * 256, unit spot is 10 microns, phase structure is of a size of 2.56mm * 2.56mm like this, with the red illumination of 650nm wavelength, is 79mm in the image size of leaving 1000 millimeters places of bronzing material.If with the position facies unit is 5 microns, then under the viewing distance of 500mm, reproduced image is of a size of 79mm.
The present invention has best hiding and reproduction effect to the two-value literal,, hides also to have again and reproduces effect preferably through after becoming bianry image after shaking (Dithering) processing for gray level image.On the principle, on the laser bronzing material, can hide all kinds of images and Word message, as gray level image etc.But, estimate from the reproduction quality of image, to be lower than the missing mass of bianry image or literal to the reproduction quality after direct the hiding of gray level image.Provided the reproduction example of literal and gray level image in the accompanying drawing 6.
Embodiment two: a kind of gold stamping film of laser with information hidden function, be sandwich construction, comprise substrate layer 1, separating layer 2, information transfer layer 3, reflection horizon 4 and hot melt adhesive layer 5, described information transfer layer 3 patrix are pressed with the position facies unit array of binary phase structure, its minimum bit facies unit is of a size of 3～20 microns, and institute's rheme facies unit is 4 staircase structural models that form with e-beam direct write lithography.
Present embodiment is in when design, and increasing has decoding key, during information reproduction, as shown in Figure 7, position phase key 9 is placed before the gold stamping film, can realize information regeneration 8, better hides and antifalse effect thereby have.
Embodiment three: a kind of gold stamping film of laser with information hidden function, be sandwich construction, comprise substrate layer 1, separating layer 2, information transfer layer 3, reflection horizon 4 and hot melt adhesive layer 5, described information transfer layer 3 patrix are pressed with the position facies unit array of binary phase structure, be shaped on interference fringe in described binary phase structure rise, form the inter-modulation structure.The product of present embodiment can form the rainbow image at material surface, simultaneously, with the laser beam illumination image time, forms to reveal in the far field again and hides Info.
Embodiment four: a kind of gold stamping film of laser with information hidden function, be sandwich construction, comprise substrate layer 1, separating layer 2, information transfer layer 3, reflection horizon 4 and hot melt adhesive layer 5, the zone mold pressing of described information transfer layer 3 top has interference fringe, another part zone mold pressing has the position facies unit array of binary phase structure, forms unitized construction arranged side by side.Like this, on the information transfer layer 3 of bronzing material, not only have and to make interference fringe, form the common laser bronzing material, also can have the embossment structure that the binary optical position distributes mutually, form bronzing material with information hidden function.Both are combined, observe, can see,,, can see hiding figure or literal in the distant place of leaving bronzing material by the laser beam illumination at the lip-deep laser diffraction image of laser bronzing material by eyes.
Claims (8)
1. gold stamping film of laser with information hidden function, be sandwich construction, comprise substrate layer [1], separating layer [2], information transfer layer [3], reflection horizon [4] and hot melt adhesive layer [5], it is characterized in that: described information transfer layer [3] patrix is pressed with the position facies unit array of binary phase structure.
2. the gold stamping film of laser according to claim 1 is characterized in that: the minimum bit facies unit of described binary phase structure is of a size of 3～20 microns.
3. the gold stamping film of laser according to claim 2 is characterized in that: institute's rheme facies unit is the staircase structural model with single beam laser is directly write or electron-beam direct writing forms.
4. the gold stamping film of laser according to claim 3 is characterized in that: institute's rheme facies unit is two ledge structures.
5. the gold stamping film of laser according to claim 3 is characterized in that: institute's rheme facies unit is 4 ledge structures.
6. the gold stamping film of laser according to claim 3 is characterized in that: institute's rheme facies unit is 8 ledge structures.
7. the gold stamping film of laser according to claim 2 is characterized in that: described binary phase structure raises and is shaped on interference fringe.
8. the gold stamping film of laser according to claim 1 is characterized in that: the zone mold pressing of described information transfer layer [3] top has interference fringe, and another part zone mold pressing has the position facies unit array of binary phase structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420024972 CN2692772Y (en) | 2004-02-24 | 2004-02-24 | Laser gold stamping film with information hidden function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420024972 CN2692772Y (en) | 2004-02-24 | 2004-02-24 | Laser gold stamping film with information hidden function |
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| CN2692772Y true CN2692772Y (en) | 2005-04-13 |
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| CN 200420024972 Expired - Lifetime CN2692772Y (en) | 2004-02-24 | 2004-02-24 | Laser gold stamping film with information hidden function |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100432745C (en) * | 2006-10-30 | 2008-11-12 | 华中科技大学 | Process for preparing phase regulating diffraction light grating encrypted anti-false identifier |
| CN101290364B (en) * | 2008-05-30 | 2012-05-09 | 苏州苏大维格光电科技股份有限公司 | Colorful filter manufacture method and device |
| CN102555573A (en) * | 2011-12-26 | 2012-07-11 | 李峰 | Character anti-counterfeiting gilding film and manufacture process thereof |
| CN110001234A (en) * | 2018-01-05 | 2019-07-12 | 中钞特种防伪科技有限公司 | Optical anti-counterfeit element and optical anti-counterfeiting product |
| CN111645436A (en) * | 2020-06-12 | 2020-09-11 | 山东泰宝包装制品有限公司 | Laser encrypted anti-counterfeiting transfer paper and preparation method thereof |
-
2004
- 2004-02-24 CN CN 200420024972 patent/CN2692772Y/en not_active Expired - Lifetime
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100432745C (en) * | 2006-10-30 | 2008-11-12 | 华中科技大学 | Process for preparing phase regulating diffraction light grating encrypted anti-false identifier |
| CN101290364B (en) * | 2008-05-30 | 2012-05-09 | 苏州苏大维格光电科技股份有限公司 | Colorful filter manufacture method and device |
| CN102555573A (en) * | 2011-12-26 | 2012-07-11 | 李峰 | Character anti-counterfeiting gilding film and manufacture process thereof |
| CN102555573B (en) * | 2011-12-26 | 2014-06-25 | 李峰 | Character anti-counterfeiting gilding film and manufacture process thereof |
| CN110001234A (en) * | 2018-01-05 | 2019-07-12 | 中钞特种防伪科技有限公司 | Optical anti-counterfeit element and optical anti-counterfeiting product |
| CN111645436A (en) * | 2020-06-12 | 2020-09-11 | 山东泰宝包装制品有限公司 | Laser encrypted anti-counterfeiting transfer paper and preparation method thereof |
| CN111645436B (en) * | 2020-06-12 | 2022-05-24 | 山东泰宝包装制品有限公司 | Laser encrypted anti-counterfeiting transfer paper and preparation method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: Zhejiang Meinong Silk Screen Printing Co., Ltd. Assignor: Suda Weige Digital Optics Co., Ltd., Suzhou Contract fulfillment period: 2008.8.1 to 2014.2.23 Contract record no.: 2008330000592 Denomination of utility model: Laser gold stamping film with information hidden function Granted publication date: 20050413 License type: Exclusive license Record date: 20080922 |
|
| LIC | Patent licence contract for exploitation submitted for record |
Free format text: EXCLUSIVE LICENCE; TIME LIMIT OF IMPLEMENTING CONTACT: 2008.8.1 TO 2014.2.23 Name of requester: ZHEJIANG MEINONG SCREEN PRINGTING CO., LTD. Effective date: 20080922 |
|
| C56 | Change in the name or address of the patentee |
Owner name: SUZHOU SUDAWEIGE OPTO-ELECTRICAL SCIENCE CO., LTD. Free format text: FORMER NAME: SUDA-WEIGE DIGITAL OPTICS CO LTD, SUZHOU |
|
| CP03 | Change of name, title or address |
Address after: No. 328, Airport Road, industrial park, Jiangsu, Suzhou: 215021 Patentee after: SVG Optronics, Co., Ltd. Address before: No. 328, Airport Road, industrial park, Jiangsu, Suzhou: 215021 Patentee before: Suda Weige Digital Optics Co., Ltd., Suzhou |
|
| C56 | Change in the name or address of the patentee |
Owner name: SUZHOU SUDAWEIGE OPTO-ELECTRICAL SCIENCE CO., LTD. Free format text: NEW ADDRESS: NO.478, BEIZHONGNAN STREET, SUJIANGDONG ROAD, SUZHOU CITY INDUSTRIAL PARK DISTRICT, JIANGSU PROVINCE, ZIP CODE:215026 |
|
| CP02 | Change in the address of a patent holder |
Address after: Jiangsu province Suzhou Industrial Park, Su Hong Road, North Bell Street, No. 478, zip code: 215026 Patentee after: SVG Optronics, Co., Ltd. Address before: No. 328, Airport Road, industrial park, Jiangsu, Suzhou: 215021 Patentee before: SVG Optronics, Co., Ltd. |
|
| C17 | Cessation of patent right | ||
| CX01 | Expiry of patent term |
Expiration termination date: 20140224 Granted publication date: 20050413 |