CN106079744A - A kind of mental package overlay film thin aluminum sheet and preparation method thereof - Google Patents
A kind of mental package overlay film thin aluminum sheet and preparation method thereof Download PDFInfo
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- CN106079744A CN106079744A CN201610333300.0A CN201610333300A CN106079744A CN 106079744 A CN106079744 A CN 106079744A CN 201610333300 A CN201610333300 A CN 201610333300A CN 106079744 A CN106079744 A CN 106079744A
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- overlay film
- aluminum sheet
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B15/00—Layered products comprising a layer of metal
- B32B15/04—Layered products comprising a layer of metal comprising metal as the main or only constituent of a layer, which is next to another layer of the same or of a different material
- B32B15/08—Layered products comprising a layer of metal comprising metal as the main or only constituent of a layer, which is next to another layer of the same or of a different material of synthetic resin
- B32B15/09—Layered products comprising a layer of metal comprising metal as the main or only constituent of a layer, which is next to another layer of the same or of a different material of synthetic resin comprising polyesters
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B15/00—Layered products comprising a layer of metal
- B32B15/20—Layered products comprising a layer of metal comprising aluminium or copper
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B27/00—Layered products comprising a layer of synthetic resin
- B32B27/06—Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material
- B32B27/08—Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material of synthetic resin
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B27/00—Layered products comprising a layer of synthetic resin
- B32B27/36—Layered products comprising a layer of synthetic resin comprising polyesters
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B37/00—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding
- B32B37/06—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the heating method
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B37/00—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding
- B32B37/10—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the pressing technique, e.g. using action of vacuum or fluid pressure
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B38/00—Ancillary operations in connection with laminating processes
- B32B38/16—Drying; Softening; Cleaning
- B32B38/162—Cleaning
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B38/00—Ancillary operations in connection with laminating processes
- B32B38/18—Handling of layers or the laminate
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2307/00—Properties of the layers or laminate
- B32B2307/50—Properties of the layers or laminate having particular mechanical properties
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2307/00—Properties of the layers or laminate
- B32B2307/70—Other properties
- B32B2307/714—Inert, i.e. inert to chemical degradation, corrosion
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2307/00—Properties of the layers or laminate
- B32B2307/70—Other properties
- B32B2307/746—Slipping, anti-blocking, low friction
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2439/00—Containers; Receptacles
- B32B2439/70—Food packaging
Landscapes
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Laminated Bodies (AREA)
- Wrappers (AREA)
Abstract
The invention discloses a kind of mental package overlay film thin aluminum sheet and preparation method thereof, this preparation method is: by surface of aluminum plate through over cleaning and Passivation Treatment；Co-extrusion polyester film is fitted in the surface of aluminum plate through over cleaning Yu Passivation Treatment；Described co-extrusion polyester film includes: the surface layer being made up of polyethylene terephthalate；The intermediate layer being made up of the mixed layer of polyester Yu modified poly ester, described polyester is with the mixed layer of modified poly ester, and polyester is mixed by the mass percent of 0～70:30～100 with modification polyester materials；The laminating layer being made up of modified resin.The invention has the beneficial effects as follows: have good combination property；Use overlay film aluminium sheet to produce two piece can and the processing procedure of product can be greatly shortened；The application of aluminium sheet covering material will be greatly reduced the cost of beverage tank packaging product；The manufacturing process of clean environment firendly government especially and industry are found pleasure in sees.
Description
Technical field
The present invention relates to metal packing material, especially relate to a kind of mental package overlay film thin aluminum sheet and preparation side thereof
Method.
Background technology
Along with the raising of consumers living, food, the demand of beverage packaging will quickly increase.Particularly function drink
Material, the quick increase of canned food, provide more chances for metal packaging tank.At present, universally acknowledged packaging container of metal is
The product of safety and environmental protection, future development has a high potential.China's mental package industry has been formed and has included that print is coated with ferrum, tank processed, system lid, system
The complete metal packaging industry system of the products such as bucket.In recent years, China's mental package industry enters the fast-developing phase.
The advantages such as aluminium is good with its heat conductivity, and amount is light, easy-formation, good barrier property, and safety is high, easy recovery, at gold
Belong to and used widely in the application of packaging, the soda pop of various aluminium pots packaging, medicated beer；At the bottom of red cattle built-up tin
Lid；The easy-open lid of built-up tin/two piece can；Aluminum Bottle, inhalator jar etc..Traditional product is usually and uses two kinds of production technologies to realize:
A. can body/bottle purposes, the techniques such as surface carries out the aluminium sheet of transpassivation process through punching press, cleans, spraying, printing, finally process
Become two panels aluminium pot/bottle；B. drawn can/lid class purposes, surface treated aluminium sheet, it is coated with dry solidification standby through coiled material
With, it is reprocessed into DRD tank, bottom or easy-open lid.Without exception, the part contacted with content has coating epoxy to two series products
Class chemicals.Hidden danger, the migration precipitation of harmful substance, the risk etc. of bisphenol-A certainly will be there is in this in terms of food safety.
Aluminium alloy sheet: be the elements such as Al, Mg, Mn, makes the process manufactures such as annealing through pressure after smelting by a certain percentage
Thin plate out, generally with coiled strip form directly manufacture two DI tanks or with coiled strip form complete coating and uncoiling ripple cut into slices
Material is coated the production for easy-open lid and full open end again.
------secondary cup stamping---cleans---spraying---baking---closing in a cup stamping to deep-draw tank body: blanking；
---coating---baking---cutting---punching press of drawn can body/cover: blanking；
The aluminum mental package that prior art produces, towards food, the one side of beverage has a coating of one layer of heat cure, typically with
Epoxies or epoxy novolac class are main.
In sum, the drawback that prior art is main is as follows:
A) coating height VOC emission, high pollution, interior painting, primary coat, finishing oil be all mainly based on solvent based coating, effective film forming
Material only accounts for about 40%, and the organic solvent of remaining about 60% needs to evaporate in working environment and air, makes to direct labor
Become great injury, be also applied with to environment and pollute pressure greatly；
B) production technology high energy consumption, the baking process after spraying uses traditional high temperature drying room, and temperature is high, and the time is long, and energy consumption is relatively
Greatly；
C) tank processed (deep-draw) production process is complicated
------secondary cup stamping---cleans---spraying---baking---closing in a cup stamping to old technique tank process: blanking
New technology tank process: blanking---one time close up by punching press---two times punch---
D) potential risk of bisphenol-A: the epoxy resin coating containing bisphenol-A, because of adhesive force and the processing characteristics of its excellence,
Coatings for tin plate printing is widely used.But research in recent years finds, Effects of Bisphenol A on Human body has potential risks.Although European Food safety
Office (EFSA) and FDA (Food and Drug Adminstration) (FDA) all confirm food by the safety of bisphenol-A in tactile material, but thus draw
The bisphenol-A fear sent out terminates far away, moreover solvent type speciality, has also been doomed the destiny being finally eliminated.
E) resist processing is poor, and coating is the most damaged.
Summary of the invention
It is an object of the invention to provide a kind of mental package overlay film thin aluminum sheet and preparation method thereof, its clean environment firendly,
Low cost, function admirable, not only have good mechanical strength, rub and examine coefficient in superpower acid and alkali-resistance ability, extremely low surface, and
The damage caused in reheating processing procedure after making product has repair.
For solving above-mentioned technical problem, embodiments of the present invention provide the system of a kind of mental package overlay film thin aluminum sheet
Preparation Method, this preparation method is: by surface of aluminum plate that thickness is 0.2-0.6mm through over cleaning and Passivation Treatment；By co-extrusion polyester
Film fits in the surface of aluminum plate through over cleaning Yu Passivation Treatment；Described co-extrusion polyester film includes: by polyethylene terephthalate
The surface layer that ester is constituted；The mixed layer of the intermediate layer being made up of the mixed layer of polyester Yu modified poly ester, described polyester and modified poly ester
In, polyester is 0～70:30～100 with the mixing ratio (mass percent) of modification polyester materials；The laminating being made up of modified resin
Layer.
In the preparation method of a kind of mental package overlay film thin aluminum sheet of the present invention, the thickness of described co-extrusion polyester film is
12-30um。
In the preparation method of a kind of mental package overlay film thin aluminum sheet of the present invention, the thickness of described surface layer accounts for whole co-extrusion
The 5%-30% of polyester film thickness.
In the preparation method of a kind of mental package overlay film thin aluminum sheet of the present invention, the thickness in described intermediate layer accounts for whole common
The 40%-90% of cohering ester film thickness.
In the preparation method of a kind of mental package overlay film thin aluminum sheet of the present invention, the thickness of described laminating layer accounts for whole common
The 5%-30% of cohering ester film thickness.
In the preparation method of a kind of mental package overlay film thin aluminum sheet of the present invention, co-extrusion polyester film fits in through over cleaning
With the surface of aluminum plate step of Passivation Treatment, overlay film point temperature is 150-300 DEG C, and pressure limit is 300kg-5000kg.
In the preparation method of a kind of mental package overlay film thin aluminum sheet of the present invention, the polyester in described mixed layer is for poly-right
PET, modified poly ester is one or more the combination in M-phthalic acid, pungent pentanediol, butanediol.
In the preparation method of a kind of mental package overlay film thin aluminum sheet of the present invention, in mixed layer, described modified poly ester
Composition shared by mol ratio be 5%～100%.
The mental package of aforementioned preparation process gained overlay film thin aluminum sheet, comprising:
Aluminum layer, its surface has passivation layer；
Being arranged at the co-extrusion polyester film structure sheaf of aluminum layer upper and lower surface, this co-extrusion polyester film structure sheaf includes:
The surface layer being made up of polyethylene terephthalate；
The intermediate layer being made up of the mixed layer of polyester Yu modified poly ester；
The laminating layer being made up of modified resin.
Wherein, the thickness of described aluminium sheet is 0.2-0.6mm, and the thickness of co-extrusion polyester film structure sheaf is 12～30um.
There is advantages that
(1) there is good combination property.Not only having good mechanical strength, rubs in superpower acid and alkali-resistance ability, extremely low surface
Examine coefficient, and the damage caused in heating to processing procedure after making product has repair.This performance will significantly
Reduce defective products rate.
(2) use overlay film aluminium sheet to produce two piece can and the processing procedure of product can be greatly shortened, the processing procedure saved, such as: clear
Wash, spray, baking etc. is all to have certain pollution and power consumption, time-consuming operation to environment.Self-evident, two piece can is production efficiency
Will be greatly improved, cost reduces.
(3) application of aluminium sheet covering material will be greatly reduced the cost of beverage tank packaging product.
(4) manufacturing process of clean environment firendly government especially and industry are found pleasure in and are seen.And can save in coating process today dirty
The puzzlement of dye, along with the most ripe of film coating technique and extensive application, traditional coatings aluminium sheet method faces unavoidably is washed in a pan
The final result eliminated.
Accompanying drawing explanation
Fig. 1 is the mental package overlay film thin aluminum sheet structural representation of the present invention；
Fig. 2 is the production line schematic diagram of mental package overlay film thin aluminum sheet.
Detailed description of the invention
For the technological means making the present invention realize, creation characteristic, reach purpose and be easy to understand with effect, below knot
Close specific embodiment, the present invention is expanded on further.
As it is shown in figure 1, mental package overlay film thin aluminum sheet, comprising: aluminum layer 1, its surface has passivation layer 2；Arrange
In the co-extrusion polyester film structure sheaf E of aluminum layer upper and lower surface, this co-extrusion polyester film structure sheaf includes: by poly terephthalic acid second two
The surface layer E1 that alcohol ester is constituted；The intermediate layer E2 being made up of the mixed layer of polyester Yu modified poly ester；The laminating being made up of modified resin
Layer E3.
Mental package overlay film thin aluminum sheet can meet Pressing Deformation that reduction is container within 80%, to meet 135 Celsius
Degree high temperature steaming requires, meets 150～210 degree of tin graphed sheet technological requirements.
The preparation method of this mental package overlay film thin aluminum sheet is described below in detail.
The preparation method of described mental package overlay film thin aluminum sheet includes:
S1. the surface of aluminum plate that thickness is 0.2-0.6mm is more than 0.1mg/m through over cleaning and Passivation Treatment, chromium content2。
S2., co-extrusion polyester film fits in the surface of aluminum plate through over cleaning Yu Passivation Treatment, and overlay film point temperature is 150-300
DEG C, pressure limit is 300kg-5000kg.
In step s 2, the co-extrusion polyester film of thickness about 12-30um includes: surface layer, intermediate layer and laminating layer.
Wherein, the surface layer being made up of polyethylene terephthalate, it accounts for the 5%-30% of whole co-extrusion polyester film thickness；
The intermediate layer being made up of the mixed layer of polyester Yu modified poly ester, it accounts for the 40%-90% of whole co-extrusion polyester film thickness；
The laminating layer being made up of modified resin, it accounts for the 5%-30% of whole co-extrusion polyester film thickness.
Described polyester is with the mixed layer of modified poly ester, and polyester with the mixing ratio (mass percent) of modification polyester materials is
0～70:30～100, polyester is polyethylene terephthalate, and modified poly ester is M-phthalic acid, pungent pentanediol, butanediol
In one or more combination, and mol ratio shared by the composition of modified poly ester is 5%～100%.
The preparation process of this mental package overlay film thin aluminum sheet includes: uncoiling → welding → cleaning → heating → overlay film → cold
But → inspection → oiling → rolling.
See Fig. 2, the figure shows the double uncoiling processing sections K1 of entrance, enter rear kink processing sections K2, pre-treatment processing sections K3,
Overlay film unit processing sections K4, inspection section K5, outlet piston section K6, oiling waxing processing sections K7 and outlet rolling processing sections K8.
This mental package overlay film thin aluminum sheet has good combination property.Not only there is good mechanical strength, superpower
Acid and alkali-resistance ability, extremely low surface are rubbed and are examined coefficient, and the damage caused in heating to processing procedure after making product has
Repair.This performance will be substantially reduced defective products rate, and metallic plate method with plastic film and rubbing method Performance comparision see table 1.
Table 1 metallic plate method with plastic film and rubbing method Performance comparision
Further, the application of mental package overlay film thin aluminum sheet will be greatly reduced the cost (seeing table 2) of beverage tank packaging product.
Table 2 aluminium sheet covering material manufacturing cost (is calculated by 0.22mm aluminium sheet per ton)
It will be understood by those skilled in the art that the respective embodiments described above are to realize the specific embodiment of the present invention, and
In actual application, can to it, various changes can be made in the form and details, without departing from the spirit and scope of the present invention.
Claims (10)
1. the mental package preparation method of overlay film thin aluminum sheet, it is characterised in that this preparation method is:
By surface of aluminum plate that thickness is 0.2-0.6mm through over cleaning and Passivation Treatment；
Co-extrusion polyester film is fitted in the surface of aluminum plate through over cleaning Yu Passivation Treatment；
Described co-extrusion polyester film includes:
The surface layer being made up of polyethylene terephthalate；
The intermediate layer being made up of the mixed layer of polyester Yu modified poly ester, in the mixed layer of described polyester and modified poly ester, polyester with
Modification polyester materials is mixed by the mass percent of 0～70:30～100；
The laminating layer being made up of modified resin.
The preparation method of a kind of mental package overlay film thin aluminum sheet the most according to claim 1, it is characterised in that described common
The thickness squeezing polyester film is 12-30um.
The preparation method of a kind of mental package overlay film thin aluminum sheet the most according to claim 1, it is characterised in that described
The thickness of layer accounts for the 5%-30% of whole co-extrusion polyester film thickness.
The preparation method of a kind of mental package overlay film thin aluminum sheet the most according to claim 1, it is characterised in that in described
The thickness of interbed accounts for the 40%-90% of whole co-extrusion polyester film thickness.
The preparation method of a kind of mental package overlay film thin aluminum sheet the most according to claim 1, it is characterised in that described patch
The thickness closing layer accounts for the 5%-30% of whole co-extrusion polyester film thickness.
The preparation method of a kind of mental package overlay film thin aluminum sheet the most according to claim 1, it is characterised in that co-extrusion is gathered
Ester film fits in the surface of aluminum plate step of over cleaning and Passivation Treatment, and overlay film point temperature is 150-300 DEG C, and pressure limit is
300kg-5000kg。
The preparation method of a kind of mental package overlay film thin aluminum sheet the most according to claim 1, it is characterised in that described mixed
The polyester closed in layer is polyethylene terephthalate, and modified poly ester is in M-phthalic acid, pungent pentanediol, butanediol
Kind or multiple combination.
The preparation method of a kind of mental package overlay film thin aluminum sheet the most according to claim 7, it is characterised in that in mixing
In Ceng, mol ratio shared by the composition of described modified poly ester is 5%～100%.
9. the mental package overlay film thin aluminum sheet of a preparation method gained as described in claim 1-8 is arbitrary, it is characterised in that
Comprising:
Aluminum layer, its surface has passivation layer；
Being arranged at the co-extrusion polyester film structure sheaf of aluminum layer upper and lower surface, this co-extrusion polyester film structure sheaf includes:
The surface layer being made up of polyethylene terephthalate；
The intermediate layer being made up of the mixed layer of polyester Yu modified poly ester；
The laminating layer being made up of modified resin.
Mental package overlay film thin aluminum sheet the most according to claim 7, it is characterised in that the thickness of described aluminium sheet is
0.2-0.6mm, the thickness of co-extrusion polyester film structure sheaf is 12～30um.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610333300.0A CN106079744A (en) | 2016-05-19 | 2016-05-19 | A kind of mental package overlay film thin aluminum sheet and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610333300.0A CN106079744A (en) | 2016-05-19 | 2016-05-19 | A kind of mental package overlay film thin aluminum sheet and preparation method thereof |
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| CN201610333300.0A Pending CN106079744A (en) | 2016-05-19 | 2016-05-19 | A kind of mental package overlay film thin aluminum sheet and preparation method thereof |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106985473A (en) * | 2017-02-24 | 2017-07-28 | 上海梓霄新材料科技有限公司 | A kind of mental package pre- color printing metallic plate of anti-hickie and preparation method thereof |
| CN107790579A (en) * | 2017-10-11 | 2018-03-13 | 珠海鼎立包装制品有限公司 | A kind of production technology of overlay film aluminum easy open can lid |
| CN108582755A (en) * | 2018-05-22 | 2018-09-28 | 苏州洛伦兹自动化机械设备有限公司 | A kind of U-shaped aluminum pipe automatic film covering oiler |
| CN109054673A (en) * | 2018-05-25 | 2018-12-21 | 上海梓霄新材料科技有限公司 | A kind of metal plate overlay film three-layer co-extruded double-colored polyester film and preparation method thereof |
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|---|---|---|---|---|
| US20110081512A1 (en) * | 2008-06-27 | 2011-04-07 | Unitika Ltd. | Highly adhesive polyester film and packaging material using the same |
| CN102218881A (en) * | 2011-03-29 | 2011-10-19 | 奥瑞金包装股份有限公司 | Low surface energy polyester film and preparation method and application thereof |
| CN104986438A (en) * | 2015-06-11 | 2015-10-21 | 珠海新一代复合材料有限公司 | Novel membrane-coated aluminum plate or aluminum foil and preparation method thereof |
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2016
- 2016-05-19 CN CN201610333300.0A patent/CN106079744A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20110081512A1 (en) * | 2008-06-27 | 2011-04-07 | Unitika Ltd. | Highly adhesive polyester film and packaging material using the same |
| CN102218881A (en) * | 2011-03-29 | 2011-10-19 | 奥瑞金包装股份有限公司 | Low surface energy polyester film and preparation method and application thereof |
| CN104986438A (en) * | 2015-06-11 | 2015-10-21 | 珠海新一代复合材料有限公司 | Novel membrane-coated aluminum plate or aluminum foil and preparation method thereof |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106985473A (en) * | 2017-02-24 | 2017-07-28 | 上海梓霄新材料科技有限公司 | A kind of mental package pre- color printing metallic plate of anti-hickie and preparation method thereof |
| CN107790579A (en) * | 2017-10-11 | 2018-03-13 | 珠海鼎立包装制品有限公司 | A kind of production technology of overlay film aluminum easy open can lid |
| CN108582755A (en) * | 2018-05-22 | 2018-09-28 | 苏州洛伦兹自动化机械设备有限公司 | A kind of U-shaped aluminum pipe automatic film covering oiler |
| CN108582755B (en) * | 2018-05-22 | 2023-12-12 | 苏州洛伦兹自动化机械设备有限公司 | Automatic tectorial membrane oiling machine of U type aluminum pipe |
| CN109054673A (en) * | 2018-05-25 | 2018-12-21 | 上海梓霄新材料科技有限公司 | A kind of metal plate overlay film three-layer co-extruded double-colored polyester film and preparation method thereof |
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