CN104928620A - Preparation method of vacuum aluminum plating film for reinforcing aluminum layer adhesion strength - Google Patents
Preparation method of vacuum aluminum plating film for reinforcing aluminum layer adhesion strength Download PDFInfo
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- CN104928620A CN104928620A CN201510274891.4A CN201510274891A CN104928620A CN 104928620 A CN104928620 A CN 104928620A CN 201510274891 A CN201510274891 A CN 201510274891A CN 104928620 A CN104928620 A CN 104928620A
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Abstract
The invention discloses a preparation method of a vacuum aluminum plating film for reinforcing aluminum layer adhesion strength. The method comprises the following steps: (1) an aluminum plating basal material is cooled at a temperature of -20 DEG C in a vacuum state; (2) the online plasma treatment is performed for the aluminum plating basal material by a plasma treatment system; (3) an aluminum wire is fed into an evaporation boat for evaporating and plating; and (4) the vacuum aluminum plating film is prepared after the cooling. The method for preparing the vacuum aluminum plating film with adhesion strength, provided by the invention, improves the adhesive force (metal bonding force) and the barrier property, and reduces the production cost.
Description
Technical field
The present invention relates to vacuum aluminized film preparation field, particularly relate to a kind of preparation method strengthening the vacuum aluminized film of aluminium lamination adhesion strength.
Background technology
The effect of commodity packaging becomes more and more important, especially food, medicine, makeup, articles for washing etc. are guaranteed the quality and require higher commodity, single-material is difficult to meet above-mentioned requirement, and therefore at present the increasing producer of flexible packaging industry adopts compound package material to reach to meet the requirement of the wrapping material inherences such as barrier (block water, choke, resistance light etc.), aesthetic property.This compound package material by having the thin-film material of barrier property as containing EVOtt resin coextruded film, coating PVDC film, evaporation sull, aluminium foil and vacuum aluminized film etc., meets the packing instructions of above product usually through composite membrane.
EVOII resin coextruded film, transparent material such as a class such as coating PVDC film and evaporation sull etc. have good barrier property, and have the features such as microwave transparent is good, transparent, but these material costs are relatively high.Meanwhile, because the reason of printing opacity, these materials can not be used for there is requirement as the packaging of the products such as fried food product to resistance light.
Aluminium foil may be barrier property best material in the barrier material that current flexible packaging uses, and under the prerequisite that aluminum foil thickness is enough, substantially can intercept gas and moisture completely.But the processing characteristics of aluminium foil in Compound Machining is poor, easy generation gauffer, fracture, affect the barrier of aluminium foil, be packaged in when shelf are shown and select as clutched by client, then easily cause the folding line of packing bag, not only destroy the bandwagon effect of product, barrier property also can be caused simultaneously to decline, use the packing cost of aluminium foil relatively high, it can not be used for needing transparent packaging simultaneously.
The eighties in last century, vacuum aluminized film is used in soft packaging.Due to its comparatively excellent barrier property, excellent metalluster and lower production cost, obtain rapidly universal, a lot of producer starts ensureing under the prerequisite that Package Quality requires, using the first-selection of vacuum aluminized film as compound package material, particularly CPP, BOPP, PE etc., the reaching its maturity of vacuum aluminized film technology of heat sealable material and in succession succeeding in developing of product, more open up the range of application of vacuum aluminized film, not only reduce packing cost, and be that the variation of packing provides possibility.
Al metallizing Fool has good flexility, good metal luster, higher barrier property, avoids aluminium foil bend fracture and the problem that significantly reduces of the barrier property caused, in some cases, Al metallizing Fool instead of the market of aluminium foil flexible packaging greatly.But traditional vacuum aluminium plating film still has many defects, namely Al metallizing Fool with other base material compounds after, than be easier to occur aluminum transfer to the phenomenon of adhesive layer, cause composite membrane combined strength bination to reduce, barrier property decline.
Summary of the invention
For above problem, the invention provides a kind of method preparing the vacuum aluminized film of high aluminium lamination adhesion strength, both improve sticking power (metlbond power) and the barrier property of vacuum aluminized film, and again reduced production cost.
For reaching above-mentioned purpose, the present invention, a kind of preparation method strengthening the vacuum aluminized film of aluminium lamination adhesion strength, comprise the following steps:
(1) base material of aluminizing cools at vacuum state-20 DEG C;
(2) base material of aluminizing adopts the online plasma treatment of plasma handling system;
(3) send aluminum steel to evaporate in evaporation boat and carry out evaporation;
(4) obtained described vacuum aluminized film after cooling.
Wherein said base material of aluminizing is PET film.
Wherein said PET film is the PET film of non-corona treatment, the PET film of corona treatment or chemically treated PET film.
Wherein said aluminum steel aluminium content is higher than 99.7%.
It is N that wherein said step (2) carries out plasma treatment process gas
2, gas flow is 200-300ml/min; Vacuum tightness is 1.0-3.0*10
-4mbar; Plasma power is less than 4kw.
In wherein said step (3), evaporation rate is 360-400 m/min; Frequency is at 80-95MHz.
The invention difference from existing technology is that the present invention achieves following technique effect:
The high aluminium lamination Adhesion enhancement of the vacuum aluminized film that the present invention adopts the present invention to obtain, make the aluminium lamination of vacuum aluminized film and the combination of aluminizing between base material more firm, stripping strength significantly improves, compared with ordinary process aluminium plating film, its metallic adhesion is better, therefore not easily causes physical abuse, its aluminium be full of cracks of all reducing aluminium plated surface the same as esters of acrylic acid coating aluminium plating film, metal level is even compact more, and free of pinholes and bubble.Although because the technique that plasma treatment is aluminized is different, aluminium coated sticking power is caused to have larger difference, but from the result drawn, even the minimum aluminium lamination sticking power of plasma treatment aluminum plating process also exceeds 2-3 doubly than common maximum sticking power of aluminizing, minimumly also reach 2.4N/min.The barrier Performance Detection of carrying out the same period also shows and also has greatly improved to the barrier property of metallized film and improve, reach the coordinating and unifying of aluminium coated metlbond power and high obstructing performance, for the innovation of composite soft packaging material on Structure and energy provides new selection.
Embodiment
Below in conjunction with embodiment, to above-mentioned being described in more detail with other technical characteristic and advantage of the present invention.
Use plant and instrument:
1) semi continuous high vacuum aluminum-spraying machine, this equipment is run treatment system, vapo(u)rization system etc. formed by vacuum evacuating system, cooling system, film.Film is carried to rolling docking station by unreeling docking station under the state of high vacuum, and above evaporating area, adsorb deposition of aluminum steam.This equipment is furnished with advanced internal cooling system, evaporated film is cooled: be configured with two low temperature power refrigeration systems, ensure the vacuum tightness of vacuum evaporation room: be configured with aluminum layer thickness on-line detecting system (infrared optical penetron), thickness and the homogeneity of aluminium coated can be regulated by automatic or manual interference mode.
2) TIG RADIO-FREQUENCY GENERATORS, Sigma technology international corporation of U.S. TIG RADIO-FREQUENCY GENERATORS (the online radio frequency plasma treatment system of TIG is called for short IPT), the online radio frequency plasma treatment system IPT of TIG mainly comprise: RF plasma generator, Hollow Cathode Magnetron, water-cooling system, supply of electric power, process gas Controlling System etc.
3) electronic tension tester (Guangzhou), for detecting the stripping strength of aluminium lamination.
4) heat sealing tester (U.S. 12AS/I), for the heat sealing of EAA film and aluminium plating film aluminium lamination.
The concrete preparation process of material and detected result
Embodiment 1
With the PET of non-corona treatment for base material of aluminizing, under vacuum state ,-20 DEG C of temperature lower cooling times, adopt the online plasma treatment of plasma handling system afterwards, processing parameter: plasma treatment process gas is N
2, gas flow is 200ml/min; Vacuum tightness is 1.8*10
-4mbar; Plasma power 3kw; Evaporation rate is 360 ms/min; Frequency 80MHz; In evaporation boat (evaporation boat evaporation after current flow heats temperature starts thawing at 1400 DEG C after plasma treatment, vaporization temperature is at 1410 DEG C, aluminium wire amount is at 500mm/min) send aluminum steel (aluminium content is higher than 99.7%) evaporation, obtained described vacuum aluminized film 1 after cooling.
Embodiment 2
With the PET of corona treatment for base material of aluminizing, under vacuum state ,-20 DEG C of temperature lower cooling times, adopt the online plasma treatment of plasma handling system afterwards, processing parameter: plasma treatment process gas is N
2, gas flow is 250ml/min; Vacuum tightness is 1.3*10
-4mbar; Plasma power 3.5kw; Evaporation rate is 400 ms/min; Frequency 90MHz, send aluminum steel (aluminium content is higher than 99.7%) evaporation in (evaporation boat evaporation after current flow heats temperature starts thawing at 1400 DEG C, vaporization temperature is at 1430 DEG C, and aluminium wire amount is at 800mm/min) in evaporation boat; Obtained described vacuum aluminized film 2 after cooling.
Embodiment 3
With chemically treated PET(Du Pont 121) for base material of aluminizing, under vacuum state, cool at-20 DEG C of temperature, adopt the online plasma treatment of plasma handling system afterwards, processing parameter: plasma treatment process gas is N
2, gas flow is 300ml/min; Vacuum tightness is 1.0 × 10
-4mbar; Plasma power is 3.8kw; Evaporation rate is 380 ms/min; Frequency, at 95MHz, send aluminum steel (aluminium content is higher than 99.7%) evaporation in (evaporation boat evaporation after current flow heats temperature starts thawing at 1400 DEG C, vaporization temperature is at 1450 DEG C, and aluminium wire amount is at 1000mm/min) in evaporation boat; Obtained described vacuum aluminized film 3 after cooling.
Above preparation method to be combined with TIG online radio frequency plasma treatment system by semi continuous high vacuum aluminum-spraying machine and to carry out online plasma treatment and vapor deposition treatment.
Testing method:
Adopt metal adhesion test-results and the technical Analysis of AIMCAL Programmable detection aluminium plating film
The metlbond power test-results of VMPET sees the following form
Table 1 is the non-corona of base material, processes corona and process chemically treated corona value
The non-corona of table 1 base material, process corona and process chemically treated corona value
| Base material | Non-corona treatment | Corona treatment | Chemical treatment |
| Corona value, dyne | 44 | 52 | 48 |
The metallized film aluminium lamination adhesion values of above three kinds of base materials (embodiment 1,2 and 3) that the existing technique of table 2 and the inventive method obtain
As can be seen from Table 2, compared with traditional conventional vacuum metallized film, the technical superiority that high aluminium lamination adhesion strength vacuum aluminized film has:
A) high aluminium lamination adhesion strength is ensure to provide possibility with combined strength bination between raising composite film: the aluminium lamination sticking power of data presentation height aluminium lamination adhesion strength VMPET film, compared with common VMPET, on average improves 3-5 doubly: met or exceeded the aluminum plated PET film (being commonly called as chemical treatment aluminium plating film) of thick painting acrylic resin coating; 85 DEG C of boiling test cards prove, its water boiling resistance performance and chemical treatment are aluminized quite thin.There is the technical characterstic of substituted chemistry process metallized film, and than the advantage adopting chemical treatment aluminium plating film to have more cost aspect.By dry multiple and crowded multiple production test, under identical complex condition, it is even higher that interlaminar strength improves 0.4-1.ON/15mm, achieves the set goal and reasonable effect.
B) pack content extended shelf-life is made to become possibility to the contribution of composite membrane barrier property: oxygen resistance and moisture barrier property are all greatly improved.
By above-mentioned test and test result, the high aluminium lamination adhesion strength vacuum aluminized film that the present invention obtains can be found out because fully utilized the state-of-the-art online plasma treatment coating technique (IFr) in the current world, vacuum aluminum-coated technology, make the aluminium lamination of vacuum aluminized film and the combination of aluminizing between base material more firm, stripping strength significantly improves.Compared with ordinary process aluminium plating film, it is better that its metal picks up attached property, therefore not easily cause physical abuse: its aluminium be full of cracks all reducing aluminium plating film surface the same as esters of acrylic acid coating (chemical treatment) metallized film, metal level is even compact more, and free of pinholes and bubble.
Although because the technique that IPT aluminizes is different, aluminium coated sticking power is caused to have larger difference, even but from the result drawn. the minimum aluminium lamination sticking power of IPT aluminum plating process also exceeds 2-3 doubly than common maximum sticking power of aluminizing, and minimumly also reaches 2.4N/1 5min.The barrier Performance Detection of carrying out the same period also shows and also has greatly improved to the barrier property of metallized film and improve. reach the coordinating and unifying that aluminium coated metal glues platform power and high obstructing performance, for the innovation of composite soft packaging material on Structure and energy provides new selection.
Above-described embodiment is only be described the preferred embodiment of the present invention; not scope of the present invention is limited; under not departing from the present invention and designing the prerequisite of spirit; the various distortion that those of ordinary skill in the art make technical scheme of the present invention and improvement, all should fall in protection domain that claims of the present invention determines.
Claims (6)
1. strengthen a preparation method for the vacuum aluminized film of aluminium lamination adhesion strength, it is characterized in that comprising the following steps:
(1) base material of aluminizing cools at vacuum state-20 DEG C;
(2) base material of aluminizing adopts the online plasma treatment of plasma handling system;
(3) send aluminum steel to evaporate in evaporation boat and carry out evaporation;
(4) obtained described vacuum aluminized film after cooling.
2. the preparation method of the vacuum aluminized film of enhancing aluminium lamination adhesion strength according to claim 1, is characterized in that: described in base material of aluminizing be PET film.
3. the preparation method of the vacuum aluminized film of enhancing aluminium lamination adhesion strength according to claim 2, is characterized in that: described PET film is the PET film of non-corona treatment, the PET film of corona treatment or chemically treated PET film.
4. the preparation method of the vacuum aluminized film of enhancing aluminium lamination adhesion strength according to claim 1, is characterized in that: described aluminum steel aluminium content is higher than 99.7%.
5. the preparation method of the vacuum aluminized film of enhancing aluminium lamination adhesion strength according to claim 1, is characterized in that: described step (2) plasma treatment process gas is N
2, gas flow is 200-300ml/min; Vacuum tightness is 1.0-3.0*10
-4mbar; Plasma power is less than 4kw.
6. the preparation method of the vacuum aluminized film of enhancing aluminium lamination adhesion strength according to claim 1, is characterized in that: in described step (3), evaporation rate is 360-400 m/min; Frequency is at 80-95MHz.
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106756778A (en) * | 2016-12-27 | 2017-05-31 | 嘉兴鹏翔包装材料有限公司 | A kind of preparation method of the vacuum aluminized film of aluminium coated adhesive force high |
| CN107799674A (en) * | 2017-09-29 | 2018-03-13 | 易佰特新能源科技有限公司 | A kind of manufacture method of lithium ion battery plastic-aluminum packaging film |
| CN107839328A (en) * | 2016-09-20 | 2018-03-27 | 上海永超新材料科技股份有限公司 | Aluminizer, microwave composite membrane and preparation method thereof |
| CN108004519A (en) * | 2017-08-09 | 2018-05-08 | 嘉兴鹏翔包装材料有限公司 | Medicine is packed for high-barrier VMCPP method for manufacturing thin film and medicine and is packed for high-barrier VMCPP films automatically automatically |
| CN112435776A (en) * | 2020-09-08 | 2021-03-02 | 浙江长宇新材料股份有限公司 | Flexible conductive film and preparation method thereof |
| CN112606372A (en) * | 2020-12-15 | 2021-04-06 | 广东正一包装股份有限公司 | Preparation method of high-barrier aluminized polyethylene film |
| CN114456429A (en) * | 2022-01-30 | 2022-05-10 | 上海翎屿科技有限公司 | Gas-barrier water-blocking laminated film, preparation method and application thereof in packaging |
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2015
- 2015-05-26 CN CN201510274891.4A patent/CN104928620A/en active Pending
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107839328A (en) * | 2016-09-20 | 2018-03-27 | 上海永超新材料科技股份有限公司 | Aluminizer, microwave composite membrane and preparation method thereof |
| CN107839328B (en) * | 2016-09-20 | 2020-09-01 | 上海永超新材料科技股份有限公司 | Aluminized film, microwave composite film and preparation method thereof |
| CN106756778A (en) * | 2016-12-27 | 2017-05-31 | 嘉兴鹏翔包装材料有限公司 | A kind of preparation method of the vacuum aluminized film of aluminium coated adhesive force high |
| CN108004519A (en) * | 2017-08-09 | 2018-05-08 | 嘉兴鹏翔包装材料有限公司 | Medicine is packed for high-barrier VMCPP method for manufacturing thin film and medicine and is packed for high-barrier VMCPP films automatically automatically |
| CN107799674A (en) * | 2017-09-29 | 2018-03-13 | 易佰特新能源科技有限公司 | A kind of manufacture method of lithium ion battery plastic-aluminum packaging film |
| CN112435776A (en) * | 2020-09-08 | 2021-03-02 | 浙江长宇新材料股份有限公司 | Flexible conductive film and preparation method thereof |
| CN112435776B (en) * | 2020-09-08 | 2021-10-19 | 浙江柔震科技有限公司 | Flexible conductive film and preparation method thereof |
| CN112606372A (en) * | 2020-12-15 | 2021-04-06 | 广东正一包装股份有限公司 | Preparation method of high-barrier aluminized polyethylene film |
| CN114456429A (en) * | 2022-01-30 | 2022-05-10 | 上海翎屿科技有限公司 | Gas-barrier water-blocking laminated film, preparation method and application thereof in packaging |
| CN114456429B (en) * | 2022-01-30 | 2023-12-01 | 上海翎屿科技有限公司 | Air-blocking and water-blocking laminated film, preparation method and application thereof in packaging |
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Application publication date: 20150923 |