CN104986438B - A kind of novel film coating aluminium sheet or aluminium foil and preparation method thereof - Google Patents
A kind of novel film coating aluminium sheet or aluminium foil and preparation method thereof Download PDFInfo
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- CN104986438B CN104986438B CN201510320126.1A CN201510320126A CN104986438B CN 104986438 B CN104986438 B CN 104986438B CN 201510320126 A CN201510320126 A CN 201510320126A CN 104986438 B CN104986438 B CN 104986438B
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Abstract
The present invention provides a kind of novel film coating aluminium sheet or aluminium foil and preparation method thereof.The novel film coating aluminium sheet or aluminium foil include：Aluminium sheet or aluminium foil, are closely overlying on the upper bottom surface of the aluminium sheet or aluminium foil and/or the first film of bottom surface by way of hot pressing；Second film torn on another surface of the first film is overlying on by way of hot pressing；Combination power between another surface of second film and the first film, less than the combination power between the first film and the aluminium sheet or the bottom surface of aluminium foil.The present invention uses hot film coating technique principle, without any pollution in production process, needs not move through aluminium sheet and aluminium foil Passivation Treatment；In use, it will can be torn positioned at second film of outer layer, so as to retain the bright and clean and hygienic of the first film surface.
Description
Technical field
The present invention relates to a kind of new overlay film aluminium sheet, film coated aluminum foil material and preparation method thereof, for food, beverage,
The packaging fields such as medicine.
Background technology
Canned food, beverage, the aluminium sheet of medical packaging, aluminum foil material is presently used for handle the antirust of its aluminium, corrosion protection
It is essentially all the mode that one layer of organic coating is applied in aluminium sheet, aluminium foil surface.Processing is first passivated to aluminium sheet before coating,
Passivation Treatment and coating coating process can generation environment pollutions.The general process of the Passivation Treatment of aluminium sheet and aluminium foil is：It is alkaline clear
Wash --- washing 1 --- washing 2 --- chemical chromium plating；The coating process of coating is：Coating --- 220-240 degrees Celsius of drying.
The chemical chrome-plating process of aluminium sheet and aluminium foil surface can cause serious chrome waste water to pollute, in coating process, the discharge of a large amount of solvents
It will cause more serious environmental pollution.Research particularly in recent years shows that the epoxy coating in coating is using
During there is free bisphenol-A to separate out.The security of its coating is also troubling.
Moreover, mental package product made of existing aluminium sheet, aluminium foil coating material are being stored up because outside is without other protective layers
Deposit, outer package can be formed and polluted in transportational process, have very big safe and healthy hidden danger when using eating, drinking.Such as
Our common pop can drink products, usually pop can top is without cleaning treatment, after tearing drawing lid before use
Directly drink, it is clear that unhygienic.
The content of the invention
In view of described in background technology, it can effectively reduce pollution it is an object of the invention to provide a kind of preparation process, make
Use and the convenient and healthy safe new aluminium sheet or aluminium foil that are used to pack.
The purpose of the present invention is what is be achieved through the following technical solutions：
A kind of novel film coating aluminium sheet or aluminium foil, it includes：
Aluminium sheet or aluminium foil,
The upper bottom surface of the aluminium sheet or aluminium foil and/or the first film of bottom surface are closely overlying on by way of hot pressing；
Second film torn on another surface of the first film is overlying on by way of hot pressing；
Combination power between another surface of second film and the first film, less than the first film and institute
State the combination power between aluminium sheet or the bottom surface of aluminium foil.
Preferably, the first film and the second film are using food and the polyester by FDA certifications of Key works Drug packing level
(PET) film, polypropylene (PP) film, polyethylene (PE) film, polyamide (PA) film, polystyrene (PS) film or poly- four
The modified film of vinyl fluoride (PTFE) film etc. and its above-mentioned all class films.
Optionally, it is the 3rd thin to be also covered with one or more layers by way of hot pressing for another surface of second film
Film.
A kind of method for being used to prepare above-mentioned overlay film aluminium sheet or aluminium foil, it comprises the following steps：
S1, by aluminium sheet or aluminium foil do cleaning treatment；
S2, be heated to aluminium sheet or aluminium foil and the first film can be by the first film and the aluminium sheet or aluminium foil
Surface phase hot pressing degree；
S3, by the first film hot pressing together in the aluminium sheet or the upper bottom surface and/or bottom surface of aluminium foil；
S4, by obtained by S3 with second film heating；
S5, another surface that second film hot-pressing is bonded to the first film.
Optionally, after the S5, further include：Answered again by way of hot pressing on another surface of second film
Close one or more layers the 3rd film.
Another novel film coating aluminium sheet or aluminium foil, it includes：
Aluminium sheet or aluminium foil,
The upper bottom surface of the aluminium sheet or aluminium foil and/or the film of bottom surface are closely overlying on by way of hot pressing.
Preferably, the film is thin using the polyester (PET) of the certification by FDA certifications of food and Key works Drug packing level
Film, polypropylene (PP) film, polyethylene (PE) film, polyamide (PA) film, polystyrene (PS) film or polytetrafluoroethylene (PTFE)
(PTFE) modified film of film etc. and its above-mentioned all class films.
The preparation method of another novel film coating aluminium sheet or aluminium foil, it comprises the following steps：
S11, by aluminium sheet or aluminium foil do cleaning treatment；
S12, by aluminium sheet or aluminium foil and the film heating to can be by the surface of the film and the aluminium sheet or aluminium foil
The temperature of phase hot pressing；
S13, by the film hot-pressing together in the aluminium sheet or the upper bottom surface and/or bottom surface of aluminium foil.
Relative to the prior art, advantages of the present invention includes：
The overlay film aluminium sheet and film coated aluminum foil material of the present invention uses hot film coating technique principle, without any pollution in production process
(needing not move through aluminium sheet and aluminium foil Passivation Treatment).In use, it will can be torn positioned at second film of outer layer, so as to retain
The first film surface it is bright and clean and hygienic.One or more layers film of the present invention is selected by FDA certifications
High-molecular organic material safe and nontoxic, reliability is high, can be subjected to the required high temperature of food, beverage, Key works Drug packing and disappear
Poison simultaneously has to oil, soda acid, chemicals extremely good tolerability.
Brief description of the drawings
Fig. 1 is the cross-sectional view of the overlay film aluminium sheet of the embodiment of the present invention one；
Fig. 2 is the preparation principle schematic diagram of the overlay film aluminium sheet of the embodiment of the present invention one.
Embodiment
Embodiment one：
The present embodiment provides a kind of novel film coating aluminium sheet (or aluminium foil), as shown in Figure 1, it includes：Aluminium sheet 10, is overlying on aluminium sheet
The first film 20 of 10 upper and lower surface, and be overlying on respectively two layers of the first film 20 outer surface (or another surface,
The one side not being in contact with the surface of aluminum plate) two layers of second films 30 for tearing stripping.
The first film 20 and 10 surface of the aluminium sheet are fixed by way of hot pressing, second film 30 and institute
State between the first film 20 is also to be fixed by way of hot pressing.This fixed form has abandoned traditional viscose glue bonding side
Formula, can effectively reduce pollution, moreover, when the second film 30 by tear peel off when, will not in the remained on surface glue of the first film 20,
Cause surface not clean, unhygienic.
Simply, the combination power on 10 surface of the first film 20 and the aluminium sheet is greater than second film 30 and first
Combination power between film 20, in this way, in use, for example：Before opening pop can, it can first tear off and be easier the work for tearing removal
For the overlay film aluminium sheet described in the present embodiment on pop can top surface by the second film 30 of environmental pollution, leave light
Clean hygienic the first film 20, will not be contaminated when people drinks.
In the selection of material, 20 and second film 30 of the first film of the present embodiment uses food and medicine bag
Polyester (PET) film by FDA certifications, polypropylene (PP) film, polyethylene (PE) film, the polyamide (PA) for filling level are thin
The modified film of film, polystyrene (PS) film or polytetrafluoroethylene (PTFE) (PTFE) film etc. and its above-mentioned all class films.
The present embodiment also provides a kind of method for being used to prepare above-mentioned overlay film aluminium sheet, it comprises the following steps：
S1, by the surface of aluminium sheet 10 do cleaning treatment；
S2, be heated to the aluminium sheet 10 and the first film 20 can be by the first film 20 and the aluminium sheet 10
Surface be heated to hot pressing conjunction degree；
S3, the upper bottom surface by the first film 20 by 40 hot pressing of pressure roller together in the aluminium sheet 10, as shown in Figure 2；
S4, will heat obtained by S3 with second film 30；
S5, another surface that 30 hot pressing of the second film is bonded to the first film 20.
In fact, in practical applications, may be not limited to this kind of product of pop can needs to use overlay film aluminium sheet or aluminium foil,
In other field, such as：On special pharmaceutical packing material, it can not also be limited in aluminium sheet or aluminium foil surface hot pressing two membranes
(above-mentioned 20 and second film 30 of the first film), can also be the film of three layers or more than three layers, determines each layer as needed
Between combination power, so as to tear one or more layers film as needed, expose the surface of needs.The system of the product of such case
Preparation Method it is necessary to including：After the S5, it can also include：Another surface of second film passes through hot pressing again
One or more layers compound the 3rd film of mode.
Embodiment two：
The present embodiment provides another novel film coating aluminium sheet, it includes：Aluminium sheet (or aluminium foil) is tight by way of hot pressing
The close film for being overlying on the aluminium sheet (or aluminium foil) upper and lower surface.The selection of the present embodiment film and embodiment one are identical, use
It is food and polyester (PET) film by FDA certifications of Key works Drug packing level, polypropylene (PP) film, polyethylene (PE) film, poly-
The modification of acid amides (PA) film, polystyrene (PS) film or polytetrafluoroethylene (PTFE) (PTFE) film etc. and its above-mentioned all class films is thin
Film.
The overlay film aluminium sheet of the present embodiment, the product suitable for surface of aluminum plate overlay film is not required during use, directly tears film off
It can be used.Equally can be to avoid the problem of environmental pollution in preparation process.
The preparation method of the novel film coating aluminium sheet of the present embodiment is as follows：
S11, by aluminium sheet (or aluminium foil) do cleaning treatment；
S12, by aluminium sheet (or aluminium foil) and the film heating to can be by the film and the aluminium sheet (or aluminium foil)
The degree of surface phase hot pressing；
S13, the upper and lower surface by the film hot-pressing together in the aluminium sheet (or aluminium foil).
The invention is not restricted to described in the various embodiments described above, a certain layer or a few layer films are not limited to the upper of covering aluminium sheet or aluminium foil
Lower two surfaces, can also be one of surface, or the part on one or two surface.
It should be pointed out that for those of ordinary skill in the art, without departing from the inventive concept of the premise,
Various modifications and improvements can be made, these belong to protection scope of the present invention.Therefore, the protection domain of patent of the present invention
It should be determined by the appended claims.
Claims (5)
1. a kind of novel film coating aluminium sheet or aluminium foil, it is characterised in that including：
Aluminium sheet or aluminium foil,
The upper bottom surface of the aluminium sheet or aluminium foil and/or the first film of bottom surface are closely overlying on by way of hot pressing；
Second film torn on another surface of the first film is overlying on by way of hot pressing；
Combination power between another surface of second film and the first film, less than the first film and the aluminium
Combination power between plate or the bottom surface of aluminium foil.
2. novel film coating aluminium sheet according to claim 1 or aluminium foil, it is characterised in that the first film and the second film
Using food and Key works Drug packing level by the polyester film of FDA certifications, polypropylene film, polyethylene film, polyamide film,
Polystyrene film or polytetrafluoroethylene film, or the modified film of above-mentioned film.
3. novel film coating aluminium sheet according to claim 1 or aluminium foil, it is characterised in that another surface of second film
One or more layers the 3rd film is also covered with by way of hot pressing.
4. a kind of method of overlay film aluminium sheet being used to prepare described in claim 1 or 2 or aluminium foil, it is characterised in that it include with
Lower step：
S1, by aluminium sheet or aluminium foil do cleaning treatment；
S2, be heated to aluminium sheet or aluminium foil and the first film can be by the first film and the aluminium sheet or the table of aluminium foil
The degree of face phase hot pressing；
S3, by the first film hot pressing together in the aluminium sheet or the upper bottom surface and/or bottom surface of aluminium foil；
S4, by obtained by S3 with second film heating；
S5, another surface that second film hot-pressing is bonded to the first film.
5. according to the method described in claim 4, it is characterized in that, after the S5, further include：Second film it is another
One surface one or more layers compound the 3rd film by way of hot pressing again.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201510320126.1A CN104986438B (en) | 2015-06-11 | 2015-06-11 | A kind of novel film coating aluminium sheet or aluminium foil and preparation method thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510320126.1A CN104986438B (en) | 2015-06-11 | 2015-06-11 | A kind of novel film coating aluminium sheet or aluminium foil and preparation method thereof |
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| CN104986438A CN104986438A (en) | 2015-10-21 |
| CN104986438B true CN104986438B (en) | 2018-05-01 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106079744A (en) * | 2016-05-19 | 2016-11-09 | 上海梓霄新材料科技有限公司 | A kind of mental package overlay film thin aluminum sheet and preparation method thereof |
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| CN102502069A (en) * | 2011-09-02 | 2012-06-20 | 浙江金石包装有限公司 | Compound easy-to-tear packaging film and manufacturing method thereof |
| CN103264840A (en) * | 2013-06-07 | 2013-08-28 | 浙江金石包装有限公司 | Aluminum foil openable cover and preparation method thereof |
| CN203427413U (en) * | 2013-08-16 | 2014-02-12 | 杭州塑料工业有限公司 | PE (Poly Ethylene) composite hard sheet for aluminum-plastic packaging |
| CN103587165A (en) * | 2013-10-31 | 2014-02-19 | 佛山佛塑科技集团股份有限公司 | High sealing flexible composite film material for cold punching molding and its manufacturing method |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2009157012A2 (en) * | 2008-06-24 | 2009-12-30 | Bilcare Limited | Multilayer film |
| JP5915710B2 (en) * | 2014-09-18 | 2016-05-11 | 大日本印刷株式会社 | Production method of packaging bags for alcohol-containing materials |
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2015
- 2015-06-11 CN CN201510320126.1A patent/CN104986438B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102502069A (en) * | 2011-09-02 | 2012-06-20 | 浙江金石包装有限公司 | Compound easy-to-tear packaging film and manufacturing method thereof |
| CN103264840A (en) * | 2013-06-07 | 2013-08-28 | 浙江金石包装有限公司 | Aluminum foil openable cover and preparation method thereof |
| CN203427413U (en) * | 2013-08-16 | 2014-02-12 | 杭州塑料工业有限公司 | PE (Poly Ethylene) composite hard sheet for aluminum-plastic packaging |
| CN103587165A (en) * | 2013-10-31 | 2014-02-19 | 佛山佛塑科技集团股份有限公司 | High sealing flexible composite film material for cold punching molding and its manufacturing method |
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