CN102729679A - Manufacture method for aluminum foil holographic sheet material and aluminum foil holographic sheet material - Google Patents
Manufacture method for aluminum foil holographic sheet material and aluminum foil holographic sheet material Download PDFInfo
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- CN102729679A CN102729679A CN2012101023961A CN201210102396A CN102729679A CN 102729679 A CN102729679 A CN 102729679A CN 2012101023961 A CN2012101023961 A CN 2012101023961A CN 201210102396 A CN201210102396 A CN 201210102396A CN 102729679 A CN102729679 A CN 102729679A
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Abstract
The invention relatest to a manufacture method for an aluminum foil holographic sheet material and an aluminum foil holographic sheet material. The manufacture method and the aluminum foil holographic sheet material are advantaged by capability of forming fine concave-convex parts of a holographic image at the surface of an aluminum foil in high precision, and high efficient production. The manufacture method for the aluminum foil holographic sheet material comprises a bottom layer adjusting process applying coating of bottoming coating materials (1') on one surface of the aluminum foil (1); a light-cured resin layer forming process forming a light-cured resin layer (2) on the surface of the aluminum foil (1); a holographic image fine concave-convex part transferring process covering the light-cured resin layer via a light-transmitting plate film (5) in the state that the fine concave-convex parts are tightly attached to the light-cured resin layer, then performing light illumination through the plate film, thereby transferring the fine concave-convex parts of the holographic image onto the surface of the light-cured resin layer and curing the light-cured resin layer; a stripping process stripping the plate film after the transferring process of the fine concave-convex parts of the holographic image; and a brilliant layer forming process performing evaporation of a substance with brilliance on at least the fine concave-convex (4') parts of the holographic image on the surface of the side of the aluminum foil light-cured resin layer, thereby forming a brilliance layer along the concave and convex of the fine concave-convex parts.
Description
Technical field
The present invention relates to holographic sheet material technical field, particularly hologram sheet section product manufacturing technology field specifically is meant the manufacturing approach and aluminium foil system hologram sheet (hologram sheet) material of the holographic sheet material of aluminium foil system that forms hologram image on a kind of surface.
Background technology
Aluminium foil is because the aesthetic property on surface is comparatively excellent; Thereby be used as the surperficial material of decoration panel; In addition, because its air-tightness is good, thereby be widely used as the packaging material of cigarette, chalk etc.; Also because it possesses hear resistance, thereby in scope widely, be used as the mess kit material that loads openly or pack foodstuff etc.
In order on the surface of this aluminium foil, to apply decorations such as literal or decorative pattern; Adopted on the surface that makes roller the relief pattern (extrusion die) that forms decorative pattern, made aluminium foil touch the method (patent documentation 1) of relief pattern on surface and the transfer roll surface of this mould roller with brute force.
But the printing transferring method of the relief pattern of said aluminium foil surface is needing great amount of manpower and expense aspect the manufacturing mould roller, thereby, even can be applicable to a large amount of productions, also can't be applicable to produced in small quantities.In addition, the relief pattern on roller surface uses metal mould roller, thereby forms fine jog easily, and particularly the formation like the like that ultra tiny jog of hologram always is accompanied by technical difficulty.
In addition, aluminium foil is fitted in the multilayer structure of thin film that is pre-formed on the hologram image though can constitute technically,, on this stepped construction, also there are shortcomings such as the bonding agent that is used for sticking film is smelly, resin film non-refractory.
Summary of the invention
The objective of the invention is to have overcome above-mentioned shortcoming of the prior art, provide a kind of and can form the micro concavo-convex portion of hologram image and the manufacturing approach and the holographic sheet material of aluminium foil system of the holographic sheet material of aluminium foil system that can High-efficient Production on the surface of aluminium foil with high accuracy than being easier to.
In order to realize above-mentioned purpose, the holographic sheet material of the manufacturing approach of the holographic sheet material of aluminium foil system of the present invention and aluminium foil system is following:
The light-cured resin layer forms operation, and it is coated with light-cured resin to form the light-cured resin layer on the surface of aluminium foil;
Hologram micro concavo-convex portion transfer printing process; The state of being close to the light-cured resin layer with this micro concavo-convex portion; The light transmission version film of the micro concavo-convex portion that is formed with hologram image on the surface is covered on the said light-cured resin layer; Under this state, carry out illumination and penetrate, be transferred to the micro concavo-convex portion of said hologram image on the surface of said light-cured resin layer thus and this light-cured resin layer is solidified through the version film; And stripping process, after this hologram micro concavo-convex portion transfer printing process, peel off an edition film.
Technical scheme 6 is the manufacturing approach of the holographic sheet material of each described aluminium foil system in the technical scheme 1 to 4; Its main feature is; Before said light-cured resin layer forms operation, be implemented in the substrate adjustment operation that coating on the surface of aluminium foil is used to improve the bonding primer base of the close property between aluminium and light-cured resin.
Technical scheme 9 is the holographic sheet materials of technical scheme 7 described aluminium foil systems; Its main feature is; In hologram micro concavo-convex part at least; Along the concavo-convex radiance layer that is formed with of said micro concavo-convex portion, said radiance layer vapor deposition have have photoluminescent and and air between boundary face on the said light-cured resin of vertical direction luminance factor on the high material of reflectivity.
The manufacturing approach and the holographic sheet material of aluminium foil system of the holographic sheet material of aluminium foil system of this invention have been adopted; Because surface coated light-cured resin at aluminium foil; To form the light-cured resin layer; On this light-cured resin layer, the state of being close to the light-cured resin layer with this micro concavo-convex portion is coated with the version film of the light transmission of the micro concavo-convex portion that is formed with hologram image on the surface, under this state, sees through an edition film and carries out illumination and penetrate; Can the micro concavo-convex portion of said hologram image be transferred on the surface of said light-cured resin layer thus and this light-cured resin layer is solidified; Therefore, can micro concavo-convex portion be transferred on the aluminium foil, thereby the expectation light direction is according to the distinct hologram image of design with high accuracy.And, can make easily, also adapt to the produced in small quantities of many kinds easily.In addition, need not the coincidence like other such members of range upon range of processing, therefore, the characteristic of other members is unaffected, and very unfertile land forms, the also foul smell of adhesive-free, and have the hear resistance and the air-tightness of excellence.And then, on whole of aluminium foil or a part of face, also can as printing, have the high decoration of the free degree, can bring into play high-decoration.
In addition, make material vapor deposition on hologram micro concavo-convex part at least and form under the concavo-convex situation of micro concavo-convex portion on the face of said light-cured resin layer side, even hologram image also is difficult for disappearing when adhering to dirt along the radiance layer with photoluminescent.In addition; When said said material with photoluminescent is the high material of the refractive index on the said refractive index ratio light-cured resin; Adhere in hologram micro concavo-convex portion under the situation of grease or water etc. of hand; Be used to cover between the refractive index of refractive index and the grease of hand etc. of material on hologram micro concavo-convex portion surface and also there are differences; Therefore, even incident light sees through the refraction and the reflection of the light that the grease of hand etc. also can guarantee to produce based on hologram micro concavo-convex portion, can avoid the generation of hologram image disappearance anomaly thus.
And; When the said material with photoluminescent be and air between boundary face on the said light-cured resin of vertical direction luminance factor on the high material of reflectivity the time; Adhere in hologram micro concavo-convex portion under the situation of grease or water etc. of hand; Even incident light see through the grease of hand etc. also can rely on hologram micro concavo-convex portion the surface the photoluminescent material and reflect, and do not rely on the reflection of light-cured resin, therefore; Obviously inhibitory reflex light generation direction is at random, can avoid the generation of hologram image disappearance anomaly thus.
Description of drawings
Fig. 1 is the expression aluminium foil coating light-cured resin that is coated with primer base of the present invention forms operation with the light-cured resin layer that forms the light-cured resin layer diagrammatic illustration figure.
Fig. 2 is the diagrammatic illustration figure that the expression version film that makes the micro concavo-convex portion light transmission that the surface is formed with hologram image of the present invention clings to the hologram micro concavo-convex portion transfer printing process of the state that the light-cured resin layer goes forward.
Fig. 3 is on the expression light-cured resin layer of the present invention; Under the state that version film in surface is close to, under this state, carry out that illumination is penetrated and hologram micro concavo-convex portion is transferred on the light-cured resin layer and makes the diagrammatic illustration figure of the hologram micro concavo-convex portion transfer printing process that this light-cured resin layer solidifies from the version film side.
Fig. 4 is the diagrammatic illustration figure after the peeling off of the stripping process of peeling off edition film of the present invention.
Fig. 5 is that the material vapor deposition with photoluminescent that makes of the present invention is to the face of the light-cured resin layer side of aluminium foil and the radiance layer that forms the radiance layer forms the diagrammatic illustration figure of operation.
Fig. 6 is the amplification view of hologram micro concavo-convex of the present invention portion.
Fig. 7 is the diagrammatic illustration figure that has implemented another embodiment of printing in the hologram micro concavo-convex portion of light-cured resin layer of the present invention.
Fig. 8 is formation light-cured resin layer of the present invention is implemented another embodiment of printing before to aluminium foil diagrammatic illustration figure.
Description of reference numerals is following:
1 aluminium foil
1 ' primer base
2 light-cured resin layers
The holographic sheet material of 3 aluminium foil systems
4 are formed at the micro concavo-convex portion of the hologram image on edition film
4 ' be needed on the micro concavo-convex portion of the hologram image on the light-cured resin laminar surface
5 editions films
6 light irradiation devices
7 radiance layers
8,8 ' printing ink.
The specific embodiment
In order more to be expressly understood technology contents of the present invention, the special following examples of lifting specify.
See also shown in Figure 1; It is the bottom adjustment operation of an expression surface coated primer base 1 ' implementing aluminium foil 1, and face (surface of primer base 1 ') the coating light-cured resin of having implemented this bottom layer treatment light-cured resin layer that forms the state of light-cured resin layer 2 forms the diagrammatic illustration figure of operation.
Primer base 1 ' is that the close property that is used to improve aluminium and light-cured resin is followed primer base 1 '.As representational composition, can enumerate for example acrylic resin, polyvinyl chloride etc.
Coat the light-cured resin on this aluminium foil 1 so long as penetrate the resin that solidifies, then can suitably select to use, in this embodiment, used ultraviolet curable resin through illumination.As this ultraviolet curable resin, for example can enumerate resins such as the radical polymerization system that is called polyvinyl alcohol, acrylic acid/styrene, acrylic acid polyurethane, acrylic polyester etc. or cation exchange system.
And, do not illustrate, in order this ultraviolet curable resin to be applied on the surface of aluminium foil 1, also can use aniline coating machine, roll-coater, gravure roll spreader, suitable apparatus for coating such as silk screen coating machine are coated with at normal temperatures, and do not need heating.In addition, not only, can also be coated with the part whole coating of aluminium foil 1.For example, also can use the version roller that coated portion is only formed relief printing plate be placed in backing roll around roll-coater, only at the part coating ultraviolet curable resin (Fig. 1) of aluminium foil 1.In addition, about the coating weight of ultraviolet curable resin, preferably coating thickness is about 1～10 micron.When needing tens of microns thickness to compare with the occasion of thermoplastic resin; Even a small amount of also formation of not overslaugh hologram image of the coating weight of this ultraviolet curable resin; Particularly under the situation of aluminium foil, the different inside that are not impregnated into paper are therefore than the situation less amount of paper.Particularly, if smooth brilliant type then can be coated with about 0.5～3 micron.And, when the coating amount of resin after a little while, when discarded, handle easily as combustiblerefuse.
If the light-cured resin layer forms operation and finishes, then then transfer to hologram micro concavo-convex portion transfer printing process.This hologram micro concavo-convex portion transfer printing process; As shown in Figure 2; On light-cured resin layer 2; The version film 5 of light transmission that makes surface (lower surface among Fig. 2) be formed with the micro concavo-convex portion 4 of hologram image becomes the state of this micro concavo-convex portion 4 towards light-cured resin layer 2, utilizes roller that this edition film 5 is pressurizeed etc. and it is close on the light-cured resin layer 2.And; As shown in Figure 3; By described being close to clipping light irradiation device (in this embodiment for ultraviolet radiator) 6 that edition film 5 ground are arranged at an opposite side of aluminium foil 1 under the state and see through a version film 5 and carry out illumination and penetrate (ultraviolet ray irradiation), be transferred to the micro concavo-convex portion 4 of said hologram image on the surface of said light-cured resin layer 2 thus and this light-cured resin layer 2 is solidified.The film that said version film 5 has ultraviolet permeability with polypropylene, poly terephthalic acid ethanol diester, polyethylene etc. is formed with the micro concavo-convex portion 4 of hologram image equally as end film on a surface of this end film.Therefore; Be close to the 2 last time of light-cured resin layer of its uncured state when making this edition film 5; The surface portion of light-cured resin is deformed into the corresponding counter-rotating shape of shape with the micro concavo-convex portion 4 of hologram image; When under this state, seeing through version film 5 ground irradiation ultraviolet radiations, ultraviolet curable resin is cured as the hologram micro concavo-convex portion 4 corresponding shapes with version film 5.
And, when peeling off edition film 5 (stripping process), the hologram micro concavo-convex portion 4 ' of no heat-shrinkable is transferred on the surface of ultraviolet curable resin layer with high accuracy.
This appearance, on the surface of ultraviolet curable resin layer accurately transfer printing have the holographic sheet material 3 of aluminium foil system of hologram micro concavo-convex portion 4 ' to have the distinctive light reflection of hologram image, more can improve ornamental than single glossy surface.In addition, not only can form the same hologram image at whole, and can locally form, therefore, also can utilize the shape in reflection of light pattern and even hologram image zone to improve distinctive decorative effect, can also form symbol or literal.Therefore, also can indicate commodity brand name, advertisement epigram, usefulness and processing method etc. as package object.
As stated, the holographic sheet material 3 of aluminium foil system also can form hologram micro concavo-convex portion 4 ', forms the radiance layer but be preferably its surface.
Therefore, the radiance layer is formed operation describe, this operation is to form radiance layer 7 in order to protect hologram micro concavo-convex portion 4 ', make the material vapor deposition with photoluminescent.In addition,, be preferably before the radiance layer forms operation, carry out corona treatment in order to improve the close property between hologram micro concavo-convex portion 4 ' and the radiance layer 7.
The radiance layer forms operation; On the face of light-cured resin layer 2 side of said aluminium foil 1; The material vapor deposition that will have a photoluminescent is on hologram micro concavo-convex portion 4 ' part at least, so that the 7 concavo-convex formation along micro concavo-convex portion 4 ' of radiance layer, and in vacuum chamber, carry out the evaporation of photoluminescent material.Under the situation of carrying out this radiance layer formation operation, be preferably damping (dehumidifying operation) processing of before this operation, carrying out aluminium foil 1 is carried out drying or heating and dehumidification in advance.
As said material, can enumerate the high material of the said light-cured resin of refractive index ratio, for example glass with photoluminescent.In addition, also can use and air between boundary face on the high material of the said light-cured resin of vertical direction luminance factor, metals such as aluminium, nickel, gold, silver, zinc for example.In addition, when the refractive index that is made as n0, reflecting surface (radiance layer) when the refractive index with medium (light-cured resin) was made as n1, then the reflectivity R of light when its face vertical incidence represented with following formula.
R＝(n0-n1)
2/(n0+n1)
2
Even said any photoluminescent material of vapor deposition, the bulk of molecule of this material also is far smaller than the size of hologram micro concavo-convex portion 4 '.Therefore, as shown in Figure 6, utilize vapor deposition to be formed at the radiance layer 7 on light-cured resin layer 2 surface, along the concavo-convex formation of the micro concavo-convex portion 4 ' of hologram image.Therefore, produced the high and bright hologram image of light reflectivity.In addition, as stated, the transfer printing precision of micro concavo-convex portion 4 ' is high, therefore, forms the hologram image of light to the distinctness that reduces according to direction reflection that designs and muddiness.And then, because the reflectivity on the radiance layer is high, therefore can as have the covering property of aluminium foil 1 and from visual observation less than the content of envelope or postcard, the shielding plate of specified particular.
And; Under the situation of grease that is attached with hand in the micro concavo-convex portion 4 ' of hologram image or moisture etc.; Particularly recess is by under the situation of the landfills such as grease of hand, and the selective refraction rate waits than the high the sort of glass of refractive index (1.47) of the ultraviolet curable resin of the micro concavo-convex portion 4 ' that constitutes hologram image and constitutes radiance layer 7, promptly as far as possible, even representational glass; Also its refractive index has certain limit (1.43～114) along with the difference of its kind; Therefore, when the present invention implemented, the selective refraction rate was higher than the glass of ultraviolet curable resin refractive index.This appearance one; (it is almost moisture usually for the recess surface (glass) of institute's landfill and the grease of hand etc.; Thereby refractive index is 1.33) between also have the difference of refractive index; Therefore, guarantee refraction and reflection, can avoid the disappear generation of husband's anomaly of hologram image thus based on the light of hologram micro concavo-convex portion 4 '.In a word,, can guarantee the light reflection, can look and recognize hologram image because refractive index there are differences.
In addition, be under the situation of metals such as aluminium at said material with photoluminescent, metal and air between boundary face on the vertical direction reflectivity be higher than said light-cured resin; Therefore, hologram micro concavo-convex portion 4 ' on be attached with under the situation of grease water etc. of hand, incident light also sees through the grease of hand etc.; Produce the reflection of the photoluminescent material on the surface that relies on hologram micro concavo-convex portion 4 '; And do not rely on the reflection on the light-cured resin, therefore, obviously the inhibitory reflex direction of light is at random.Therefore, be under the situation of metal evaporation layer at radiance layer 7, also can avoid the generation of hologram image disappearance anomaly.
The purposes of the holographic sheet material 3 of aluminium foil system in the present invention has multiple, and not only hologram image can print.For example, another embodiment shown in Figure 7 also can be implemented the printing of ink 8 on the surface of the light-cured resin layer 2 that is formed with hologram micro concavo-convex portion 4 '.In addition, another embodiment shown in Figure 8 is, implements the printing of ink 8 ' in advance on the surface of aluminium foil 1, on its printed layers, forms light-cured resin layer 2, and in its surface transfer hologram micro concavo-convex portion 4.
When this appearance is implemented printing; Can produce printing and common special attractive in appearance of hologram image; Improved ornamental thus; Also can be used in picture poster etc., on aluminium foil 1 and face hologram micro concavo-convex portion a 4 ' opposite side, print, also can prevent respectively to see through the face of an opposite side and have an X-rayed (not can the back side shine upon).
In said embodiment; Brilliant face coating primer base 1 ' at aluminium foil 1; On this primer base 1 ', overlap to form hologram image and form sheet material 3; But resin bed is not peeled off, be not coated with primer base 1 ' also can be on the surface of aluminium foil 1 direct coating light-cured resin and form hologram image.In this case, be preferably on the face of an opposite side and form hologram image with brilliant face.This is because under the situation of rolling aluminium foil, the state that two aluminium foils are peeled off oil with coating therebetween is piled up; And make it through being rolled between Rolling roller, therefore, the face transfer printing of joining with the surface of Rolling roller the minute surface on roller surface; And become brilliant face, but not transfer printing of the coincidence face minute surface of its opposite side, so form frosted shape (pear-skin texture pattern appearance shape); If this frosted shape face, even the coating light-cured resin also can make resin hang tag in the micro concavo-convex portion on surface and is difficult to peel off; Therefore, need not utilize the end adjustment operation of primer base 1 ' coating, can omit this operation.
In this specification, the present invention is described with reference to its certain embodiments.But, still can make various modifications and conversion obviously and not deviate from the spirit and scope of the present invention.Therefore, specification and accompanying drawing are regarded in an illustrative, rather than a restrictive.
Claims (9)
1. the manufacturing approach of the holographic sheet material of aluminium foil system is characterized in that, handles through following operation:
The light-cured resin layer forms operation, and it is coated with light-cured resin to form the light-cured resin layer on the surface of aluminium foil;
Hologram micro concavo-convex portion transfer printing process; The state of being close to the light-cured resin layer with this micro concavo-convex portion; The light transmission version film of the micro concavo-convex portion that is formed with hologram image on the surface is covered on the said light-cured resin layer; Under this state, carry out illumination and penetrate, be transferred to the micro concavo-convex portion of said hologram image on the surface of said light-cured resin layer thus and this light-cured resin layer is solidified through the version film; And
Stripping process after this hologram micro concavo-convex portion transfer printing process, is peeled off an edition film.
2. the manufacturing approach of the holographic sheet material of aluminium foil system according to claim 1 is characterized in that, after said stripping process, forms operation through the radiance layer and handles, and described radiance layer forms operation and is:
On the face of described light-cured resin layer side, make material vapor deposition on hologram micro concavo-convex part at least with photoluminescent, and along concavo-convex the formations radiance of micro concavo-convex portion layer.
3. the manufacturing approach of the holographic sheet material of aluminium foil system according to claim 2 is characterized in that the described material with photoluminescent is the high material of refractive index on the described light-cured resin of refractive index ratio.
4. the manufacturing approach of the holographic sheet material of aluminium foil system according to claim 2 is characterized in that, the described material with photoluminescent be and air between boundary face on the described light-cured resin of vertical direction luminance factor on the high material of reflectivity.
5. according to the manufacturing approach of the holographic sheet material of each described aluminium foil system in the claim 1 to 4, it is characterized in that described light-cured resin layer forms operation and is:
When making aluminium foil, at the face coating light-cured resin of the opposite side of face that is contacted with Rolling roller, to form the light-cured resin layer.
6. according to the manufacturing approach of the holographic sheet material of each described aluminium foil system in the claim 1 to 4; It is characterized in that; Before described light-cured resin layer formed operation, the surface coated that is implemented in aluminium foil was used to improve the substrate adjustment operation of the bonding primer base of the close property between aluminium and light-cured resin.
7. the holographic sheet material of an aluminium foil system is characterized in that, be formed with on the surface of aluminium foil the light-cured resin layer and with the face of the opposite side of aluminium foil of this light-cured resin layer on be formed with the micro concavo-convex portion of hologram image.
8. the holographic sheet material of aluminium foil system according to claim 7; It is characterized in that; On the part of described at least hologram micro concavo-convex portion; Vapor deposition has refractive index to be higher than the refractive index of described light-cured resin and has the material of photoluminescent, makes its refractive index greater than the concavo-convex formation along described micro concavo-convex portion of the radiance layer of the refractive index on the described light-cured resin layer.
9. the holographic sheet material of aluminium foil system according to claim 7; It is characterized in that; On the part of hologram micro concavo-convex at least; Along the concavo-convex radiance layer that is formed with of described micro concavo-convex portion, described radiance layer vapor deposition have have photoluminescent and and air between boundary face on the described light-cured resin of vertical direction luminance factor on the high material of reflectivity.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2011089925A JP2012220918A (en) | 2011-04-14 | 2011-04-14 | Method for manufacturing hologram sheet material made of aluminum foil and hologram sheet material made of aluminum foil |
| JP2011-089925 | 2011-04-14 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102729679A true CN102729679A (en) | 2012-10-17 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012101023961A Pending CN102729679A (en) | 2011-04-14 | 2012-04-09 | Manufacture method for aluminum foil holographic sheet material and aluminum foil holographic sheet material |
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| Country | Link |
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| JP (1) | JP2012220918A (en) |
| CN (1) | CN102729679A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105068396A (en) * | 2015-09-02 | 2015-11-18 | 武汉大学 | Reflective aluminum nanorod array and method for realizing color hologram by using same |
| CN111907238A (en) * | 2020-08-07 | 2020-11-10 | 云南侨通包装印刷有限公司 | Fine casting embossing thermoprinting product with metal bottom layer and manufacturing method thereof |
| CN111923646A (en) * | 2020-08-07 | 2020-11-13 | 云南侨通包装印刷有限公司 | Fine casting embossing thermoprinting product and manufacturing method thereof |
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| JPH0417953Y2 (en) * | 1985-04-08 | 1992-04-22 | ||
| JP4832370B2 (en) * | 2002-05-07 | 2011-12-07 | 日本製箔株式会社 | Aluminum alloy foil and method for producing the same |
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| CN1100533A (en) * | 1994-06-27 | 1995-03-22 | 北京市富通光电工程公司 | Ultraviolet-solidified hologram duplicating technology |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105068396A (en) * | 2015-09-02 | 2015-11-18 | 武汉大学 | Reflective aluminum nanorod array and method for realizing color hologram by using same |
| CN105068396B (en) * | 2015-09-02 | 2017-12-26 | 武汉大学 | A kind of reflective aluminium nanometer stick array and the method that color hologram is realized using it |
| CN111907238A (en) * | 2020-08-07 | 2020-11-10 | 云南侨通包装印刷有限公司 | Fine casting embossing thermoprinting product with metal bottom layer and manufacturing method thereof |
| CN111923646A (en) * | 2020-08-07 | 2020-11-13 | 云南侨通包装印刷有限公司 | Fine casting embossing thermoprinting product and manufacturing method thereof |
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| Publication number | Publication date |
|---|---|
| JP2012220918A (en) | 2012-11-12 |
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Application publication date: 20121017 |