CN2794809Y - Transferrable aluminum plating two-way drawing film - Google Patents
Transferrable aluminum plating two-way drawing film Download PDFInfo
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- CN2794809Y CN2794809Y CN 200520081817 CN200520081817U CN2794809Y CN 2794809 Y CN2794809 Y CN 2794809Y CN 200520081817 CN200520081817 CN 200520081817 CN 200520081817 U CN200520081817 U CN 200520081817U CN 2794809 Y CN2794809 Y CN 2794809Y
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Abstract
The utility model discloses a transferrable aluminum plating two-way drawing film which has a layer structure, wherein the upper surface layer of the layer structure is an aluminum plating transferring layer, and aluminium can be plated on the upper surface; the lower surface of the aluminum plating transferring layer is in coextrulamination with a sandwich layer taking the other plastic resin as the essential component which is incompatible with the plastic resin taken as the essential component of the transferrable aluminum plating layer. The drawing film disclosed by the utility model can not only plate the aluminium on the aluminum plating transferring layer, but also can easily transfer an aluminum plating layer onto other carriers. When the utility model is used for carrying out the aluminum plating transference, the technology is simple, the cost is low and a very thin protective layer is left on the external surface of the aluminum plating layer after the action of transference. The utility model is not only suitable for the aluminum plating transference of ordinary paper and card paper, but also is suitable for any other film transferring process with similar requirements.
Description
Technical field
The utility model relates to plastic resin thin film technique field, relates in particular to a kind of biaxially oriented film that aluminium coated shifts that can be used for.
Background technology
Along with science and technology development, vacuum aluminum-coated compound package material begins to replace original traditional aluminium foil compound package material in the packing of many products, is widely used in the packing of all kinds of expensive goods.The characteristics of vacuum aluminum-coated compound package material maximum are high barrier and fresh-keeping and fragrance protectiveness.
Used in the market vacuum aluminum-coated material mainly contains two kinds, and a kind of is the paper of aluminizing, and another kind is an aluminized plastic film.
As the substitution material of aluminum foil composite, the maximum application market of vacuum aluminum-coated plastic sheeting is the composite packaging of class commodity such as varieties of food items, medicine.The application market of vacuum aluminium-plated paper maximum then mainly is the internal liner package of cigarette, particularly cigarette.
At present, the method for producing vacuum aluminium-plated paper mainly contains two kinds, and a kind of is direct vacuum vapour deposition, exactly by to paper select and process processing especially, directly be put in the vacuum aluminum-coated machine then and aluminize.The main feature of this method is very high to the performance requirement of paper, particularly water capacity, air content and surface smoothness requirement.So this method generally will be processed processing specially to paper, this just makes this method produce difficulty, complex process, and cost is higher.
Another method of producing vacuum aluminium-plated paper is to aluminize indirectly, be exactly earlier aluminium lamination vacuum evaporation to plastic film carrier, then the aluminium lamination on the plastic film carrier is transferred to (or on other film) on the paper again, this method is also named transfer aluminum plated.
With respect to direct vacuum aluminizing method, transfer aluminum plated because to paper require relatively lowly, technology also realizes easily, developed into one of main technique that paper aluminizes at present.
Transfer aluminum plated key problem in technology is to shift, and promptly how the aluminium coated that is plated on the plastic sheeting is stripped down and transfers on the paper surface that will plate.At present, transfer aluminum plated technological process roughly is 1) on plastic sheeting, be coated with one deck bottom earlier, be exactly " release layer " or " peel ply ".2) carry out vacuum aluminum-coated on the plastic sheeting top layer that was coated with.3) on aluminium coated, be coated with transfer adhesive.4) by the effect of glue aluminium coated is transferred on other thin-film carrier, for example paper or paperboard.
The utility model content
The technical problems to be solved in the utility model is: provide a kind of and both can aluminize on its top layer, can at an easy rate this aluminium coated be transferred to the transferable biaxially oriented film of aluminizing on other carrier again.
For solving the problems of the technologies described above, the technical solution of the utility model is: a kind of transferable biaxially oriented film of aluminizing has layer structure.The upper epidermis of this layer structure be Main Ingredients and Appearance be plastic resin, and can be thereon the surface transfer layer of aluminizing of aluminizing, it is sandwich layer with the inconsistent another kind of plastic resin of plastic resin that constitutes the described transfer layer Main Ingredients and Appearance of aluminizing that the lower surface coextru-lamination of this transfer layer of aluminizing has its Main Ingredients and Appearance.
Above-mentioned transfer layer and the sandwich layer of aluminizing can be realized by following two kinds of concrete modes respectively:
The described transfer layer of aluminizing is that Main Ingredients and Appearance is the polypropylene of polypropylene copolymer or the homopolymers transfer layer of aluminizing, and described sandwich layer is that Main Ingredients and Appearance is the polyester sandwich layer of polyester homopolymer.
The described transfer layer of aluminizing is that Main Ingredients and Appearance is the polyester of polyester copolymer or the homopolymers transfer layer of aluminizing, and described sandwich layer is that Main Ingredients and Appearance is the polypropylene sandwich layer of polypropylene homopolymer.
After adopting technique scheme, because dissimilar have different compatibilities with the plastic resin of kind, thermal welding is together securely and the resin of different compatibilities is at compound tense, polypropylene copolymer and polyester homopolymer, polyester copolymer and polypropylene homopolymer belong to the plastic resin of dissimilar and kind, therefore aluminize transfer layer with still can separate after the sandwich layer hot melt is compound.If at the upper surface evaporation aluminium lamination of the transfer layer of aluminizing, coating is shifted and is sticked with glue layer thereon again, just can separate aluminize transfer layer and sandwich layer at an easy rate, thereby the aluminium lamination on the transfer layer face of aluminizing can be transferred on other carrier.Therefore, when using this polyester film or polypropylene screen to carry out the aluminium coated transfer, need not the secondary coating, technology is simple, and cost is low, the transfer mass height.
Description of drawings
Accompanying drawing is the structure cutaway view of the utility model embodiment.
Below in conjunction with drawings and Examples the utility model is further specified.
The specific embodiment
As shown in drawings, a kind of transferable biaxially oriented polyester film of aluminizing also is the transferable BOPET of aluminizing film, forms layer structure by three rete coextru-laminations together, and the upper strata is the transfer layer 1 of aluminizing, and the centre is a sandwich layer 2, and lower floor is following top layer 3.The Main Ingredients and Appearance of transfer layer 1 of wherein aluminizing is a polypropylene copolymer, and the Main Ingredients and Appearance of sandwich layer 2 is polyester homopolymer, and the Main Ingredients and Appearance on following top layer 3 is polyester (homopolymerization or copolymerization).The additive that contains the smooth property that can improve film in the above-mentioned rete, the concentration of additive in the transfer layer 1 of aluminizing is 0～800ppm by weight; The concentration of additive in sandwich layer 2 is 0～1000ppm by weight, and the concentration of additive in following top layer (3) is 300～1000ppm by weight.The Main Ingredients and Appearance of additive is a silica, also can be other composition such as kaolin or calcium phosphate or barium sulfate etc.
Overall film thickness is 16 μ m, and the thickness of the transfer layer 1 of wherein aluminizing is 1.0～2.5 μ m, and the thickness of sandwich layer 2 is 11 μ m～14 μ m, and the thickness on following top layer (3) is 1.0～2.5 μ m.
As required, the thickness on the transfer layer 1 of aluminizing, following top layer (3) also can be controlled at respectively within the scope of 0.5 μ m～10 μ m, and by adjusting the thickness of sandwich layer 2, the gross thickness of film can be adjusted in the scope of 8 μ m～200 μ m; Generally, overall film thickness is generally 12 μ m～36 μ m.Transfer layer 1 thickness of aluminizing is generally about 1.5 μ m.
The above-mentioned transferable BOPET film of aluminizing can be realized by following processing step:
A, will be by weight the raw material of the sandwich layer 2 formed of 40%～60% bright PET chips, 10%～30% the polyester slice that contains additive and 10%～50% recovery granulation section mix the earlier pre-crystallization in back, enter the drying tower drying after humidity be controlled at about 30ppm; Dried raw material enters main extruder, is heated to be melt, enters the compound die head after pre-filtering, measuring pump, the main filtration;
B, raw material and Main Ingredients and Appearance that 80～95% polypropylene copolymers and 5～20% are contained the transfer layer 1 of aluminizing that the polypropylene copolymer of additive forms are the raw materials on the following top layer (3) of polyester (homopolymerization or copolymerization), enter each self-corresponding double screw extruder respectively, be heated to be and melt body, discharge moisture and oligomer, after pre-filtering, measuring pump, the main filtration, enter the compound die head.
Form in C, A and the B step three layers melt body after compound die head flows out, and are cooled off rapidly by the chilling roller, form sheet, and described sheet is successively through preheating, vertically do 3.5 times of stretchings.
Sheet behind D, the longitudinal stretching successively through laterally preheating zone preheating, laterally do 3.5 times of stretching, setting, cool off.
After E, the film cooling, through thickness measuring, side cut, elimination static and rolling film forming.Back splitting winding, be packaged into finished product.
More than be the processing technology that adopts the two-step stretch method, by the chilling roller cool off rapidly forms sheet after, also can adopt the synchro-draw method of carrying out the vertical and horizontal stretching simultaneously.Certainly, adopt casting technique also can realize same effect.
The gross thickness of preparing by above-mentioned process conditions is a kind of transferable biaxially oriented polyester film of aluminizing of 16 μ m, and its performance indications representative value sees Table 2.
Table 2
| Project | Unit | Test value | Method of testing | |
| Hot strength | Longitudinal stretching | N/mm 2 | 220 | DIN53455 |
| Cross directional stretch | N/mm 2 | 220 | ||
| Elastic modelling quantity | Longitudinal stretching | N/mm 2 | 4000 | |
| Cross directional stretch | N/mm 2 | 4200 | ||
| Elongation at break | Longitudinal stretching | ％ | 140 | |
| Cross directional stretch | ％ | 130 | ||
| Percent thermal shrinkage | Longitudinal stretching | ％ | 1.5 | 150℃/30min |
| Cross directional stretch | ％ | 0.2 | ||
| Mist degree | ％ | 3 | ASTM D1003 | |
| Glossiness | ％ | 130 | ASTM D2457 | |
| Coefficient of friction | μs/μk | 0.50/0.40 | DIN53375 | |
| Light transmittance | ％ | 88 | ||
| Wetting tension | Mn/m | AST M D2578 | ||
| Peeling force between the ground floor and the second layer | Use common polyester adhesive tape to glue | |||
A kind of transferable biaxially oriented film of aluminizing that the utility model disclosed, 1) be not limited to three retes, also can be two-layer, but be at least two-layer.2) the aluminize main component of transfer layer 1 and sandwich layer 2 raw material that uses also is not limited to polypropylene copolymer (or homopolymers) and polyester homopolymer, as long as it contains a kind of in the mutual exclusive plastic resin respectively, and the top layer that the transfer layer 1 of aluminizing that is fit to aluminize is positioned at the film layer structure gets final product, for example: the transfer layer 1 of aluminizing is polyester copolymer or homopolymers, and sandwich layer 2 is a polypropylene homopolymer.3) because polyester and polypropylene are inconsistent, so between these two layers, can realize easily peeling off through after the biaxial tension, thereby be easily to separate after aluminizing on the sandwich layer of polypropylene copolymer in main component, and transfer on other carrier, for example paperboard or the like with sandwich layer 2.The utility model is when being used for aluminium coated and shifting, and technology is simple, and cost is low, and after shifting also the outside at aluminium coated keep the extremely thin protective layer of one deck.The utility model is suitable for not only that general paper is transfer aluminum plated, and paperboard is transfer aluminum plated, also is suitable for any film transfer processing that similar requirement is arranged.
Claims (6)
1, a kind of transferable biaxially oriented film of aluminizing, it is characterized in that: have layer structure, the upper epidermis of this layer structure be Main Ingredients and Appearance be plastic resin, and can be thereon the surface transfer layer of aluminizing (1) of aluminizing, it is sandwich layer (2) with the inconsistent another kind of plastic resin of plastic resin that constitutes the described transfer layer of aluminizing (1) Main Ingredients and Appearance that the lower surface coextru-lamination of this transfer layer of aluminizing (1) has its Main Ingredients and Appearance.
2, a kind of transferable biaxially oriented film of aluminizing as claimed in claim 1, it is characterized in that: the described transfer layer of aluminizing (1) is the polypropylene of polypropylene copolymer or the homopolymers transfer layer of aluminizing for Main Ingredients and Appearance, and described sandwich layer (2) is the polyester sandwich layer of polyester homopolymer for Main Ingredients and Appearance.
3, a kind of transferable biaxially oriented film of aluminizing as claimed in claim 2, it is characterized in that: another surperficial coextru-lamination of described sandwich layer (2) has following top layer (3), and this time top layer (3) are top layer under the polyester of polyester homopolymer or polyester copolymer for Main Ingredients and Appearance.
4, a kind of transferable biaxially oriented film of aluminizing as claimed in claim 1, it is characterized in that: the described transfer layer of aluminizing (1) is the polyester of polyester copolymer or the homopolymers transfer layer of aluminizing for Main Ingredients and Appearance, and described sandwich layer (2) is the polypropylene sandwich layer of polypropylene homopolymer for Main Ingredients and Appearance.
5, a kind of transferable biaxially oriented film of aluminizing as claimed in claim 4, it is characterized in that: another surperficial coextru-lamination of described sandwich layer (2) has following top layer (3), and this time top layer (3) are top layer under the polypropylene of polypropylene homopolymer or polypropylene copolymer for Main Ingredients and Appearance.
6, as claim 3 or 5 described a kind of transferable biaxially oriented films of aluminizing, it is characterized in that: the gross thickness of this polyester film is 12～36 μ m, the thickness of transfer layer (1) of wherein aluminizing is 0.5～2.5 μ m, and the thickness on following top layer (3) is 0.5～2.5 μ m.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520081817 CN2794809Y (en) | 2005-03-28 | 2005-03-28 | Transferrable aluminum plating two-way drawing film |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520081817 CN2794809Y (en) | 2005-03-28 | 2005-03-28 | Transferrable aluminum plating two-way drawing film |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2794809Y true CN2794809Y (en) | 2006-07-12 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200520081817 Expired - Lifetime CN2794809Y (en) | 2005-03-28 | 2005-03-28 | Transferrable aluminum plating two-way drawing film |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2794809Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106541585A (en) * | 2016-09-07 | 2017-03-29 | 无锡和烁丰新材料有限公司 | Unlike material is coextruded composite membrane technology |
-
2005
- 2005-03-28 CN CN 200520081817 patent/CN2794809Y/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106541585A (en) * | 2016-09-07 | 2017-03-29 | 无锡和烁丰新材料有限公司 | Unlike material is coextruded composite membrane technology |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CX01 | Expiry of patent term |
Expiration termination date: 20150328 Granted publication date: 20060712 |