CN107059486B - A kind of pearly-lustre holographic false proof paper and its preparation process - Google Patents
A kind of pearly-lustre holographic false proof paper and its preparation process Download PDFInfo
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- CN107059486B CN107059486B CN201710373934.3A CN201710373934A CN107059486B CN 107059486 B CN107059486 B CN 107059486B CN 201710373934 A CN201710373934 A CN 201710373934A CN 107059486 B CN107059486 B CN 107059486B
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- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
- D21H27/00—Special paper not otherwise provided for, e.g. made by multi-step processes
- D21H27/10—Packing paper
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
- D21H19/00—Coated paper; Coating material
- D21H19/02—Metal coatings
- D21H19/08—Metal coatings applied as vapour, e.g. in vacuum
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
- D21H19/00—Coated paper; Coating material
- D21H19/10—Coatings without pigments
- D21H19/14—Coatings without pigments applied in a form other than the aqueous solution defined in group D21H19/12
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
- D21H19/00—Coated paper; Coating material
- D21H19/10—Coatings without pigments
- D21H19/14—Coatings without pigments applied in a form other than the aqueous solution defined in group D21H19/12
- D21H19/24—Coatings without pigments applied in a form other than the aqueous solution defined in group D21H19/12 comprising macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
- D21H21/00—Non-fibrous material added to the pulp, characterised by its function, form or properties; Paper-impregnating or coating material, characterised by its function, form or properties
- D21H21/14—Non-fibrous material added to the pulp, characterised by its function, form or properties; Paper-impregnating or coating material, characterised by its function, form or properties characterised by function or properties in or on the paper
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- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Paper (AREA)
- Laminated Bodies (AREA)
Abstract
The present invention relates to a kind of pearly-lustre holographic false proof paper and its preparation processes.The pearly-lustre holographic false proof paper successively includes radium-shine layer, dielectric layer, pearl layer, glue layer, body paper from top to bottom.Preparation process includes 1] moldable coating is coated on transfer basement membrane；2] it is molded laser information on moldable coating, obtains laser information layer；3] the spraying plating zinc sulphide on laser information layer, obtains dielectric layer；4] pearl layer is coated on dielectric layer；5] with glue that pearl layer and body paper is compound；6] transfer basement membrane is removed.Glue layer of the present invention will not influence the pearl effect of pearl layer below pearl layer.Medium is placed between pearl layer and radium-shine layer, can be well protected laser information not by the interference of pearl layer, laser information is presented clearly；The presence of dielectric layer also plays protective effect to pearl layer, so that pearl layer do not weakened, absorb or change incident ray because of the covering of radium-shine diffracting layer, anti-counterfeiting performance is stronger.
Description
Technical field
The invention belongs to pack and decoration material field, it is related to a kind of pearly-lustre holographic false proof paper and its preparation process.
Background technique
The packaging material of pearl effect plays always an important role in packaging field, in recent years radium-shine colorful packet
Package material also increasingly receives an acclaim, and laser effect is other than itself can bring visual effect to consumer, moreover it is possible to which enhancing produces
The anti-counterfeiting performance of product.With the improvement of living standards, requirement of the consumer to packaging material is also higher and higher, simple iridescent paper
Or laser paper is no longer satisfied the esthetic requirement of consumer as wrapping paper.There is the paper of pearly-lustre and laser effect simultaneously
The beauty and class that wrapping paper can be promoted, meet the aesthetic requirement of present people.Temporarily there are no a kind of products currently on the market
It is to integrate radium-shine with pearl effect, i.e. existing radium-shine distinctive diffracting effect on a sheet of paper, while having pearlescent pigment again
Distinctive change spar effect.
Pearly-lustre laser paper, patent of invention (105525536 A of CN) radium-shine pearly-lustre paper jam is made in existing patent disclosure at present
And preparation method thereof, the preparation method of the invention is that pearl powder and glue are proportionally mixed to get compo, will be mixed
Material be coated on paper, then with laser film it is compound, removing.The patent is not aluminized or medium, if do not increased on laser film
Aluminize or plate medium effect, after molding directly with glue it is compound if, that laser effect will disappear.Patent of invention (CN
104960353 A) a kind of pearly-lustre laser paper and its preparation process, preparation process are as follows: in the Bopp basement membrane with radium-shine layer
Upper coating pearlescent pigment layer plates medium after carrying out surface tension reinforcement processing to pearly-lustre transfer layer above it again, is being situated between later
One layer of transfer adhesive water layer is coated on matter layer；Former recto and transfer adhesive water layer are compound after back is applied again, and Bopp basement membrane is removed
After obtain the invention product.The technique has plated one layer of medium on pearl layer, protects pearl layer using the transparency of medium.
But the invention is directly coated with pearl layer on laser information layer, does not have dielectric layer between radium-shine layer and pearl layer.Utility model
A kind of patent (205188713 U of CN) colorful pearly-lustre laser packing paper, and pearl layer is directly coated on laser information layer,
There is no dielectric layer between radium-shine layer and pearl layer.The purpose of plating medium is that pearly-lustre laser effect is made to keep transparent performance, can be obtained
To more ideal pearly-lustre laser effect, while keeping the adhesion property of pearly-lustre transfer layer more preferable.
Summary of the invention
Present invention mainly solves deficiency present in existing product, provide that a kind of pearl effect is good, laser pattern is clear, peace
The paper that loopful is protected, while a kind of preparation process of pearly-lustre holographic false proof paper being provided.
The technical solution of the invention is as follows: a kind of pearly-lustre holographic false proof paper, from top to bottom successively includes radium-shine layer, transparent
Dielectric layer, pearl layer, glue layer, body paper.
The transparent dielectric layer is zinc sulphide transparent dielectric layer.
The pearl layer is not limited to full version, special edition or patterned pearl layer.
The radium-shine layer is not limited to the radium-shine layer of hollow out or the radium-shine layer of full version.
The preparation process of above-mentioned pearly-lustre holographic false proof paper, including following process:
1] it is coated with transferable coating and heating, drying on transfer basement membrane, obtains moldable coating:, can on coating machine
Transfer coatings are uniformly applied on PET basement membrane by anilox roll, and heating, drying obtains moldable coating；The cable roll can be with
It is the steel or ceramic cable roll of 200~300 lines；Coating speed is 100-150m/min speed, and hot drying temperature is 80-150
℃；The PET film is reusable；It is with a thickness of 12 μm~18 μm；
2] be molded laser information on moldable coating, obtain laser information layer: the laser information layer is by having three
The holographic Ni plate mould of dimension space pattern is pressed, and it is 40-60m/min that moulding press, which is molded speed, and molding temperature is 130-180 DEG C,
The radium-shine layer of molding is with a thickness of 1.0 μm -1.5 μm；
3] the spraying plating zinc sulphide on laser information layer, obtains dielectric layer: passing through molybdenum boat on aluminum-spraying machine for the sulphur of high-purity
Change in zinc spraying plating to laser information layer, obtains dielectric layer；The zinc sulphide purity >=99.0 %, the thickness of dielectric layers of spraying plating exist
0.15 μm -0.25 μm, the vacuum degree of aluminum-spraying machine is 2 × 10-2 - 7×10 -2Pa；
4] pearly coating is coated on dielectric layer by cable roll, obtains pearl layer: weighing the pearly-lustre of certain mass number
Powder is distributed in aqueous polyurethane coating with blender at room temperature, and stirring to pearl powder is completely dispersed uniformly.The pearl
The partial size of light powder is 10 μm -80 μm, and pearl powder mass percentage is 10%-30%, preferably 15%-25%, the pearl powder
It can be white, gold, black, blue etc.；
5] on compounding machine, with glue by transfer basement membrane pearl layer and body paper be combined with each other, then dried through baking oven
Solidization；The glue require it is dry after be it is transparent, not generating apparent cover to the color on paper surface influences；It can be with
Use commercially available specific complex glue；Paper can be 50~300g/m2Paper, the compound face color of paper can be white, can also
It is pre-coated with coloring layer in paper surface, color can be monochrome, be also possible to the progressive coloured of the various forms generated by monochrome；
6] transfer basement membrane is removed.
The invention has the advantages that the paper good visual effect that (1) is of the invention, it appear that be not merely radium-shine color
Make oneself too remarkable, nor be only the gentle soft of pearly-lustre color, but the combination of both visual effects.This combination is not only
Conflict or contrast will not be constituted, gives people a kind of deep graceful sense instead.Paper of the present invention has both radium-shine and pearly-lustre antifalsification,
Its antifalse effect is stronger, can be widely used in a variety of expensive goods packagings such as cosmetics, tobacco and wine, drug, clothes.
(2) since aperture is distributed on radium-shine layer, laser effect is generated using the diffraction or reflection of light, pearlescent pigment contains
There is particle, if being directly coated with pearl layer on radium-shine layer, pearlescent pigment can block aperture, weaken laser effect, therefore, this Shen
Please transparent medium is placed between pearl layer and radium-shine layer, laser information is can be well protected not by the interference of pearl layer, makes
Laser information is clearly presented；The presence of transparent dielectric layer also plays protective effect to pearl layer, moreover it is possible to make the pearly-lustre of pearl layer
Effect is more preferable, and pearl layer will not weaken, absorb or change incident ray because of the covering of radium-shine diffracting layer, to make the color of pearly-lustre
Pool can show that anti-counterfeiting performance is stronger completely.Pearl layer seemingly forms the background color of one layer of high brightness, is upper below radium-shine layer
The radium-shine color in face adds saturation degree, enriches visual experience.Product laser information complete display, the level finally obtained is rich
Richness, pearl effect are preferable.Glue layer will not influence the pearl effect of pearl layer below pearl layer.
(3) present invention process is simple, and the PET film after removing can be reused several times, save the cost, is improving production efficiency
While, also act energy-saving and environment-friendly effect；Aqueous polyurethane coating environmental pollution is small.
Detailed description of the invention
Fig. 1 is a kind of preparation process route flow chart of pearly-lustre holographic false proof paper；
Fig. 2 is embodiment paper structure schematic diagram.
In figure: 1, radium-shine layer, 2, transparent dielectric layer, 3, pearl layer, 4, glue layer, 5, body paper.
Specific embodiment
A specific embodiment of the invention is further illustrated by the following examples, but the present invention is not limited to institutes in embodiment
The specific embodiment of description.
Embodiment 1
1, by moldable transfer coatings on coating machine with 100m/min speed, be coated on 12 μm with 250 mesh cable rolls
On PET film surface, film after coating by temperature is 90 DEG C, 1000 DEG C, 130 DEG C, 120 DEG C of hot drying tunnels film forming is dried.
2. with moulding press with 40m/min speed, the molding pressure of 20kg, 130 DEG C of molding temperatures, by the horizontal net in nickel version
In line light beam laser information stamp transfer to moldable coating；The radium-shine layer of molding obtains with a thickness of 1.0 μm containing transverse web light
The PET film of column laser pattern.
3, the PET film with laser information is sent into vacuum evaporating system, is 5 × 10 in vacuum degree-2 Spraying plating under the conditions of Pa
One 0.20 μm of thickness, purity >=99.0 % ZnS dielectric layer.
4,25 parts are weighed, partial size is 15 μm of golden pearl powder, at room temperature with blender be distributed to 75 parts it is transparent
In aqueous polyurethane coating, stirring to pearl powder is completely dispersed uniformly.Aqueous polyurethane coating is purchased from Shandong Order U.S. macromolecule
Materials Co., Ltd.
5, the resulting pearlescent pigment of step 4 is spread evenly across on dielectric layer with 250 line ceramics rods on coating machine, is coated with
Film afterwards by temperature be 100 DEG C, 120 DEG C, 110 DEG C, 100 DEG C of hot drying tunnels film forming is dried, obtain pearl layer.
6, the PET film containing pearl layer is utilized into aqueous transparent glue and 300g/m2The white paper jam of grammes per square metre is compound, compound
Machine speed is 110m/min, composite pressure 4.0kg/cm2, and oven temperature is set as 100 DEG C, 110 DEG C, 120 DEG C, 110 DEG C,
It is compound to use cable roll for 250 mesh ceramic rollers.
7, the paper after will be compound is removed PET film with the speed of 180m/min on stripping machine, all information on film
It stays on paper, obtains radium-shine pearly-lustre without aluminium paper, the PET film rewinding after removing is stand-by.
Above embodiments have it is following the utility model has the advantages that
The paper that present invention process obtains brings a kind of soft, noble visual phenomenon, fine grain gold pearly-lustre to people
Pigment formation can bring simple and elegant, fine and smooth silky gloss, after laser effect combines, keep whole overall effect more preferably excellent
It is different.It is observed that gloss be to be compounded to form after multiple refraction occurs in pearicoat via incident ray, so pearl
Light coating shows the uncertainty of a kind of similar texture as pearl and position sense.Laser effect and pearl effect are independent of each other.
Embodiment 2
1, by moldable transfer coatings on coating machine with 120m/min speed, be coated on 15 μm with 200 mesh cable rolls
On PET film surface, film after coating by temperature is 90 DEG C, 130 DEG C, 140 DEG C, 120 DEG C of hot drying tunnels film forming is dried.
2. with moulding press with 50m/min speed, the molding pressure of 22kg, 150 DEG C of molding temperatures, by the vegetarian noodles in nickel version
In laser information stamp transfer to moldable coating；The radium-shine layer of molding obtains with a thickness of 1.5 μm containing fresh laser pattern
PET film.
3, the PET film with laser information is sent into vacuum evaporating system, is 5 × 10 in vacuum degree-2 Spraying plating under the conditions of Pa
One 0.20 μm of thickness, purity >=99.0 % ZnS dielectric layer.
4,15 parts are weighed, the white pearlescent powder that partial size is 40 μm is distributed to 85 parts of blues with blender at room temperature
In aqueous polyurethane coating, stirring to pearl powder is completely dispersed uniformly.
5, the resulting pearlescent pigment of step 4 is spread evenly across on dielectric layer with 300 line ceramics rods on coating machine, is coated with
Film afterwards by temperature be 90 DEG C, 110 DEG C, 110 DEG C, 100 DEG C of hot drying tunnels film forming is dried, obtain pearl layer.
6, the PET film containing pearl layer is utilized into aqueous transparent glue and 175g/m2The white paper jam of grammes per square metre is compound, compound
Machine speed is 120m/min, composite pressure 4.2kg/cm2, and oven temperature is set as 110 DEG C, 120 DEG C, 130 DEG C, 120 DEG C,
It is compound to use cable roll for 250 mesh ceramic rollers.
7, the paper after will be compound is removed PET film with the speed of 160m/min on stripping machine, all information on film
It stays on paper, obtains radium-shine pearly-lustre without aluminium paper, the PET film rewinding after removing is stand-by.
Above embodiments have it is following the utility model has the advantages that
The paper that present invention process obtains brings a kind of visual phenomenon for having depth, being imbued with innervation to people.Blue coating paper
Upper white pearly-lustre flashes light, and after being combined together with fresh laser effect, just as a piece of sparkling sea, beauty is strong
It sees.It can see it on the same surface in observation, different points of view has delicate difference, is not merely gloss, there are also face
Color.Since material generates scattering at pigment edge, we are readily observed glistening starlight effect.It is radium-shine complete with pearly-lustre
Beauty combines, our richer visual effect.
Embodiment 3
1, by moldable transfer coatings on coating machine with 150m/min speed, be coated on 18 μm with 300 mesh cable rolls
On PET film surface, film after coating by temperature is 90 DEG C, 120 DEG C, 110 DEG C, 110 DEG C of hot drying tunnels film forming is dried.
2. with moulding press with 60m/min speed, the molding pressure of 23kg, 175 DEG C of molding temperatures, by the mirror surface in nickel version
In light beam laser information stamp transfer to moldable coating；The radium-shine layer of molding obtains with a thickness of 1.2 μm containing the radium-shine figure of mirror surface
The PET film of case.
3, the PET film with laser information is sent into vacuum evaporating system, is 5 × 10 in vacuum degree-2 Spraying plating under the conditions of Pa
One 0.20 μm of thickness, purity >=99.0 % ZnS dielectric layer.
4,20 parts are weighed, partial size is 80 μm of red pearl powder, at room temperature with blender be distributed to 80 parts it is transparent
In aqueous polyurethane coating, stirring to pearl powder is completely dispersed uniformly.
5, on coating machine with being carved with 300 line part hollow out steel rods of maple leaf pattern for the resulting pearlescent pigment of step 4
Be spread evenly across on dielectric layer, the film after coating by temperature is 100 DEG C, 110 DEG C, 110 DEG C, 100 DEG C of hot drying tunnels are done
Dry film forming, obtains pearl layer.
6, the PET film containing pearl layer is utilized into aqueous transparent glue and 70g/m2The white paper jam of grammes per square metre is compound, compound
Machine speed is 110m/min, composite pressure 4.0kg/cm2, and oven temperature is set as 110 DEG C, 120 DEG C, 130 DEG C, 120 DEG C,
It is compound to use cable roll for 200 mesh ceramic rollers.
7, the paper after will be compound is removed PET film with the speed of 150m/min on stripping machine, all information on film
It stays on paper, obtains radium-shine pearly-lustre without aluminium paper, the PET film rewinding after removing is stand-by.
Above embodiments have it is following the utility model has the advantages that
The paper that present invention process obtains is a kind of special edition hollow out paper, it is not full width pearly-lustre, according to the coating of design
Steel rod only has pearl effect on pattern maple leaf, and maple leaf pattern is red.The design of pierced pattern more highlights pattern and dazzles
Color effect, while antifalse effect is stronger.
The above described is only a preferred embodiment of the present invention, not making in any form to structure of the invention
Limitation.Any simple modification, equivalent change and modification to the above embodiments according to the technical essence of the invention,
It falls within the scope of protection of the present invention.
Claims (10)
1. a kind of pearly-lustre holographic false proof paper, which is characterized in that from top to bottom successively include radium-shine layer, transparent dielectric layer, pearl layer,
Glue layer, body paper.
2. pearly-lustre holographic false proof paper according to claim 1, which is characterized in that the transparent dielectric layer is that zinc sulphide is transparent
Dielectric layer.
3. pearly-lustre holographic false proof paper according to claim 1 or 2, which is characterized in that the radium-shine layer is the radium-shine layer of hollow out
Or the radium-shine layer of full version.
4. pearly-lustre holographic false proof paper according to claim 3, which is characterized in that the pearl layer is full version, special edition or band
The pearl layer of pattern.
5. the preparation process of pearly-lustre holographic false proof paper according to claim 1, which is characterized in that including in chronological order into
Capable following process:
1] it is coated with transferable coating and heating, drying on transfer basement membrane, obtains moldable coating；
2] it is molded laser information on moldable coating, obtains laser information layer；
3] the spraying plating medium on laser information layer, obtains transparent dielectric layer；
4] it is coated with pearly coating on transparent dielectric layer, obtains pearl layer；
5] pearl layer and body paper are combined with each other with glue, then baking and curing；
6] transfer basement membrane is removed.
6. the preparation process of pearly-lustre holographic false proof paper according to claim 5, which is characterized in that the pearly coating is logical
It crosses the evenly dispersed pearl powder in aqueous polyurethane coating and is prepared.
7. the preparation process of pearly-lustre holographic false proof paper according to claim 6, which is characterized in that the quality of the pearl powder
Percentage composition is 10%-30%.
8. the preparation process of pearly-lustre holographic false proof paper according to claim 7, which is characterized in that the pearl powder partial size is
5-100μm。
9. the preparation process of pearly-lustre holographic false proof paper according to claim 7, which is characterized in that the body paper is 50~
300g/m2Paper.
10. the preparation process of pearly-lustre holographic false proof paper according to claim 9, which is characterized in that the transfer basement membrane is
PET film；The transfer basement membrane is with a thickness of 12~22 μm.
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| CN108394157B (en) * | 2017-10-13 | 2020-03-17 | 厦门富桂通科技有限公司 | Stretch-resistant wear-resistant composite film and preparation method thereof |
| CN108118562A (en) * | 2017-11-29 | 2018-06-05 | 深圳新宏泽包装有限公司 | A kind of customized information cheque paper and its manufacturing method |
| CN109024074A (en) * | 2018-08-09 | 2018-12-18 | 高阳 | A kind of bloom pearly-lustre laser paper and preparation method thereof |
| CN110284372B (en) * | 2019-07-01 | 2023-05-30 | 安徽顺彤包装材料有限公司 | Laser transfer paper and production process thereof |
| CN110481132A (en) * | 2019-09-03 | 2019-11-22 | 江苏大亚新型包装材料有限公司 | Bloom shifts pearly-lustre tipping paper and its preparation process |
| CN110528322A (en) * | 2019-09-23 | 2019-12-03 | 广东鑫瑞新材料科技有限公司 | A kind of preparation method of the mirror surface pearly-lustre paper jam with three-dimensional pearl effect |
| CN111469570B (en) * | 2020-05-29 | 2024-06-18 | 贵州劲嘉新型包装材料有限公司 | Pearlescent transparent light column effect printing structure and printing method thereof |
| CN111942051A (en) * | 2020-08-26 | 2020-11-17 | 东莞光群雷射科技有限公司 | Multi-angle color-changing cold-stamping film and production process thereof |
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| CN112987158B (en) * | 2021-04-09 | 2022-03-18 | 广东晟铂纳新材料科技有限公司 | Iron-based optically variable pigment and manufacturing method and application thereof |
| CN114312099B (en) * | 2022-01-12 | 2022-10-04 | 汕头市嘉信包装材料有限公司 | Manufacturing process of environment-friendly hidden anti-counterfeiting packaging material |
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| CN102896855A (en) * | 2012-09-17 | 2013-01-30 | 西安工业大学 | Glass bead type anti-counterfeiting film and preparation method thereof |
| CN205188713U (en) * | 2015-11-09 | 2016-04-27 | 中山市金海包装科技有限公司 | Radium -shine wrapping paper of colorful pearly -lustre |
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| CN103342064B (en) * | 2013-07-12 | 2015-02-04 | 上海宏盾防伪材料有限公司 | Positioning laser certificate anti-fake thin film for individually printing and preparation method thereof |
| CN205416790U (en) * | 2015-12-02 | 2016-08-03 | 广东壮丽彩印股份有限公司 | Printing material structure with anti -fake function of paper money line |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102896855A (en) * | 2012-09-17 | 2013-01-30 | 西安工业大学 | Glass bead type anti-counterfeiting film and preparation method thereof |
| CN205188713U (en) * | 2015-11-09 | 2016-04-27 | 中山市金海包装科技有限公司 | Radium -shine wrapping paper of colorful pearly -lustre |
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