CN2868687Y - Transparent medium film holographic thermoprinting foie - Google Patents
Transparent medium film holographic thermoprinting foie Download PDFInfo
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- CN2868687Y CN2868687Y CN 200520099800 CN200520099800U CN2868687Y CN 2868687 Y CN2868687 Y CN 2868687Y CN 200520099800 CN200520099800 CN 200520099800 CN 200520099800 U CN200520099800 U CN 200520099800U CN 2868687 Y CN2868687 Y CN 2868687Y
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Abstract
The utility model discloses a transparent medium holograph stamping foil which is in turn composed of a carrier film base course, a separating course, an imaging course, a medium-coating course, and a hot-melt adhesive course. The medium-coating course comprises 3-7 layers of overlapped transparent medium films having different refractive indexes and arranged in a high-low alternant manner according to the refractive indexes. Thanks to the reflection and transmission of the medium-coating course, human eyes can clearly see the holograph forming on the imaging course; the transmission property of the medium-coating course, the entire stamping foil is transparent. Adjusting the refractive indexes of different layers of transparent medium films can reach a better effect of entire transmission and reflection of the holograph stamping foil. The utility model enables people to see the holograph itself, as well as the original content on the packing article.
Description
Technical field
The utility model belongs to polymer composite, is specifically related to a kind of transparent dielectric film Holographic hot stamping foil, can be used for common thermoprint and decorates, and also can be used for false proof thermoprint.
Background technology
Over past ten years, the antiforge laser holographic technology combines with traditional printing technology, has produced novel anti-counterfeiting packing material, has obtained successful application at packaging industry.Occurred new technology false proof and that packing combines together, holographic packing and holographic printing industry are just arisen at the historic moment.This is a rising high tech industry of developed country's appearance in recent years, is among the fast development.At present, this technology is being infiltrated the false proof of China and packages printing industry rapidly, increases the technology content of packaging product, promotes traditional packages printing already to upgrade, and becomes a new growth engines of packages printing industry.Holographic hot stamping foil is exactly a bright spot of holographic packing and holographic printing industry.
Usually, Holographic hot stamping foil is a kind of polymer composite with five-layer structure, as shown in Figure 1, and comprising plastic carrier film substrate 1, separating layer 2, imaging layer 3, aluminium coated 4 and hot melt adhesive layer 5.Imaging layer is used for the recording holographic image, and aluminium coated plays a part the minute surface reflection.The reflection of aluminium coated makes human eye can see bright hologram pattern bright in luster.Simultaneously because the blocking of aluminium coated, thermoprint the place of hologram, original content just cannot see on the packing material.
Summary of the invention
The purpose of this utility model is to provide a kind of transparent dielectric film Holographic hot stamping foil, and it can either see hologram, can see original content on the packing material again.
The transparent dielectric film Holographic hot stamping foil that the utility model provides, comprise carrier thin film substrate, separating layer, imaging layer and hot melt adhesive layer successively, it is characterized in that: between imaging layer and hot melt adhesive layer, be provided with medium coating, medium coating forms by the transparent dielectric film of the different refractivity of 3-7 layer is stacked, and each layer transparent dielectric film alternately placed according to the high and low of refractive index.
The utility model at first is coated with separating layer in the carrier thin film substrate, be coated with imaging layer (hologram record layer) then on separating layer.The plastic sheeting that will scribble separating layer and imaging layer is again delivered to and is carried out mold pressing on the moulding press, and hologram is impressed on the imaging layer.Be to be printed on plating multi-layer transparent deielectric-coating on the imaging layer of hologram with that, the multi-layer transparent deielectric-coating has certain reflection and transmittance.Because medium coating has certain reflectivity, human eye can be clear that the hologram on the imaging layer; Because medium coating also has certain transmittance, whole stamping systems is transparent again.The utility model can either be seen hologram like this, can see original content on the packing material again.
Description of drawings
Fig. 1 is five layers of underlying membrane architecture schematic diagram of common Holographic hot stamping foil;
The structural representation of the transparent dielectric film Holographic hot stamping foil that Fig. 2 provides for the utility model;
Fig. 3 is the structural representation of a kind of specific implementation of Fig. 2 medium coating;
The preparation flow figure of the transparent dielectric film Holographic hot stamping foil that Fig. 4 provides for the utility model.
The specific embodiment
As shown in Figure 2, the utility model comprises carrier thin film substrate 1, separating layer 2, imaging layer 3, medium coating 6 and the hot melt adhesive layer 5 that stacks successively, the aluminium coated 4 that it adopts medium coating 6 to replace in the common Holographic hot stamping foil shown in Figure 1.
Medium coating 6 forms by the transparent dielectric film of the different refractivity of 3-7 layer is stacked, and each layer transparent dielectric film alternately placed according to the high and low of refractive index.By adjusting the refractive index of each layer transparent dielectric film, can make the transmittance of Holographic hot stamping foil integral body and reflectivity reach better effect.
Fig. 3 has provided a kind of example of medium coating 6, and it is made up of three layers of refracting layer 7,8,9, and the refractive index of refracting layer 7,8,9 is followed successively by the form of " high and low, height ", adjusts the numerical value of each layer refractive index, can reach needed transparency.For example, refracting layer is a zinc sulphide for 7,9 layers, and refractive index is 2.3; Refracting layer is a magnesium fluoride for 8 layers, and refractive index is 1.38, constitutes the three layer transparent dielectric film of a kind of refractive index for " high and low, height ".
According to physioptial derivation, during the light vertical incidence, be n in refractive index
a, n
bTwo kinds of transparent medium interfaces on, its reflectivity R and transmissivity T are respectively
R＝((n
a-n
b)/(n
a+n
b))
2
T＝1-R
For two interfacial situations that three layers of medium shown in Figure 3 form, the refractive index of establishing 7,8,9 three layers of medium is respectively n
7, n
8, n
97, between 8 two layer medium being interface A, is interface B between 8,9 two layer medium; Light is respectively R at the reflectivity at two interfaces
A, R
A, transmissivity is respectively T
A, T
BThe total transmittance T of then this three layers of dielectric structure is
T＝(1-R
A)(1-R
B)
Wherein:
R
A＝((n
7-n
8)/(n
7+n
8))
2
R
B＝((n
8-n
9)/(n
8+n
9))
2
Except that medium coating 6, other parts of the present utility model are identical with common Holographic hot stamping foil shown in Figure 1.Carrier thin film is generally the PET plastic sheeting, thickness 15 μ m or 19 μ m; Separating layer thickness almost can be ignored; Imaging layer is again because of having different requirements different to surperficial wearability and chemical resistance, the about 0.5 μ m of thickness; Medium coating geometric thickness is by the quantity of coating and the thickness decision of each layer; Hot melt adhesive layer thickness is about 1 μ m.Adopt contour forging technology that hologram is molded on the imaging layer.Fig. 4 is the process chart of preparation transparent dielectric film Holographic hot stamping foil.
During thermoprint, transparent stamping systems is placed on by the surface of thermoprint thing, hot melt adhesive layer with contact by thermoprint thing surface, the thermoprint head is heated and is acted on the transparent stamping systems after the pressurization, the temperature of thermoprint head melts PUR, and imaging layer is bonded in by thermoprint thing surface; The temperature of thermoprint head makes the separating layer fusing, and the PET plastic sheeting of transparent stamping systems separates with imaging layer, and the imaging layer that just will record hologram pattern has been stayed by thermoprint thing surface.
Can comprise some special technique in the hologram pattern, as photochemical embossment technology, spectral transformation encryption technology, machine-readable technology etc., in order to improve the anti-counterfeiting power that increases transparent stamping systems.
Claims (1)
1, a kind of transparent dielectric film Holographic hot stamping foil, comprise carrier thin film substrate, separating layer, imaging layer and hot melt adhesive layer successively, it is characterized in that: between imaging layer (3) and hot melt adhesive layer (5), be provided with medium coating (6), medium coating (6) forms by the transparent dielectric film of the different refractivity of 3-7 layer is stacked, and each layer transparent dielectric film alternately placed according to the high and low of refractive index.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520099800 CN2868687Y (en) | 2005-12-31 | 2005-12-31 | Transparent medium film holographic thermoprinting foie |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520099800 CN2868687Y (en) | 2005-12-31 | 2005-12-31 | Transparent medium film holographic thermoprinting foie |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2868687Y true CN2868687Y (en) | 2007-02-14 |
Family
ID=37723619
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200520099800 Expired - Fee Related CN2868687Y (en) | 2005-12-31 | 2005-12-31 | Transparent medium film holographic thermoprinting foie |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2868687Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104143346A (en) * | 2013-05-08 | 2014-11-12 | 拜耳材料科技股份有限公司 | Holographic recording medium incorporating anti-halo layer and method for producing the same |
-
2005
- 2005-12-31 CN CN 200520099800 patent/CN2868687Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104143346A (en) * | 2013-05-08 | 2014-11-12 | 拜耳材料科技股份有限公司 | Holographic recording medium incorporating anti-halo layer and method for producing the same |
| CN104143346B (en) * | 2013-05-08 | 2019-02-01 | 科思创德国股份有限公司 | Holographic recording medium and its preparation with antihalation layer |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20070214 Termination date: 20141231 |
|
| EXPY | Termination of patent right or utility model |