EP3810826A1 - Vorrichtung zum beschichten von behältern mit einer barriereschicht und verfahren zur heizung eines behälters - Google Patents
Vorrichtung zum beschichten von behältern mit einer barriereschicht und verfahren zur heizung eines behältersInfo
- Publication number
- EP3810826A1 EP3810826A1 EP19732336.3A EP19732336A EP3810826A1 EP 3810826 A1 EP3810826 A1 EP 3810826A1 EP 19732336 A EP19732336 A EP 19732336A EP 3810826 A1 EP3810826 A1 EP 3810826A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- container
- plasma
- range
- heating
- gas
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn
Links
- 238000010438 heat treatment Methods 0.000 title claims abstract description 38
- 238000000034 method Methods 0.000 title claims abstract description 35
- 238000000576 coating method Methods 0.000 title claims abstract description 33
- 239000011248 coating agent Substances 0.000 title claims abstract description 32
- 230000004888 barrier function Effects 0.000 title claims abstract description 31
- 229910052756 noble gas Inorganic materials 0.000 claims abstract description 17
- 230000008569 process Effects 0.000 claims abstract description 13
- 238000011282 treatment Methods 0.000 claims abstract description 7
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 6
- 229910052814 silicon oxide Inorganic materials 0.000 claims description 6
- 229910052786 argon Inorganic materials 0.000 claims description 5
- 229910052743 krypton Inorganic materials 0.000 claims description 4
- 239000000463 material Substances 0.000 claims description 4
- 229910052754 neon Inorganic materials 0.000 claims description 4
- 239000007789 gas Substances 0.000 description 15
- 238000011161 development Methods 0.000 description 9
- 230000008901 benefit Effects 0.000 description 6
- 238000012986 modification Methods 0.000 description 5
- 230000004048 modification Effects 0.000 description 5
- 230000007547 defect Effects 0.000 description 4
- 238000000151 deposition Methods 0.000 description 3
- 230000008021 deposition Effects 0.000 description 3
- 230000001066 destructive effect Effects 0.000 description 3
- 235000008519 pasta sauces Nutrition 0.000 description 3
- 230000035699 permeability Effects 0.000 description 3
- 230000003746 surface roughness Effects 0.000 description 3
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 description 2
- 238000001816 cooling Methods 0.000 description 2
- 238000005137 deposition process Methods 0.000 description 2
- 238000002474 experimental method Methods 0.000 description 2
- 150000002835 noble gases Chemical class 0.000 description 2
- 238000002203 pretreatment Methods 0.000 description 2
- 239000000758 substrate Substances 0.000 description 2
- 235000012976 tarts Nutrition 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- 238000012546 transfer Methods 0.000 description 2
- 238000013459 approach Methods 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000009529 body temperature measurement Methods 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 238000005429 filling process Methods 0.000 description 1
- 238000010849 ion bombardment Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 238000005268 plasma chemical vapour deposition Methods 0.000 description 1
- 238000004886 process control Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000012549 training Methods 0.000 description 1
- 238000010792 warming Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J37/00—Discharge tubes with provision for introducing objects or material to be exposed to the discharge, e.g. for the purpose of examination or processing thereof
- H01J37/32—Gas-filled discharge tubes
- H01J37/32431—Constructional details of the reactor
- H01J37/32458—Vessel
- H01J37/32477—Vessel characterised by the means for protecting vessels or internal parts, e.g. coatings
-
- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C16/00—Chemical coating by decomposition of gaseous compounds, without leaving reaction products of surface material in the coating, i.e. chemical vapour deposition [CVD] processes
- C23C16/04—Coating on selected surface areas, e.g. using masks
- C23C16/045—Coating cavities or hollow spaces, e.g. interior of tubes; Infiltration of porous substrates
-
- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C16/00—Chemical coating by decomposition of gaseous compounds, without leaving reaction products of surface material in the coating, i.e. chemical vapour deposition [CVD] processes
- C23C16/22—Chemical coating by decomposition of gaseous compounds, without leaving reaction products of surface material in the coating, i.e. chemical vapour deposition [CVD] processes characterised by the deposition of inorganic material, other than metallic material
- C23C16/30—Deposition of compounds, mixtures or solid solutions, e.g. borides, carbides, nitrides
- C23C16/40—Oxides
- C23C16/401—Oxides containing silicon
-
- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C16/00—Chemical coating by decomposition of gaseous compounds, without leaving reaction products of surface material in the coating, i.e. chemical vapour deposition [CVD] processes
- C23C16/44—Chemical coating by decomposition of gaseous compounds, without leaving reaction products of surface material in the coating, i.e. chemical vapour deposition [CVD] processes characterised by the method of coating
- C23C16/455—Chemical coating by decomposition of gaseous compounds, without leaving reaction products of surface material in the coating, i.e. chemical vapour deposition [CVD] processes characterised by the method of coating characterised by the method used for introducing gases into reaction chamber or for modifying gas flows in reaction chamber
- C23C16/45563—Gas nozzles
- C23C16/45578—Elongated nozzles, tubes with holes
-
- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C16/00—Chemical coating by decomposition of gaseous compounds, without leaving reaction products of surface material in the coating, i.e. chemical vapour deposition [CVD] processes
- C23C16/44—Chemical coating by decomposition of gaseous compounds, without leaving reaction products of surface material in the coating, i.e. chemical vapour deposition [CVD] processes characterised by the method of coating
- C23C16/46—Chemical coating by decomposition of gaseous compounds, without leaving reaction products of surface material in the coating, i.e. chemical vapour deposition [CVD] processes characterised by the method of coating characterised by the method used for heating the substrate
-
- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C16/00—Chemical coating by decomposition of gaseous compounds, without leaving reaction products of surface material in the coating, i.e. chemical vapour deposition [CVD] processes
- C23C16/44—Chemical coating by decomposition of gaseous compounds, without leaving reaction products of surface material in the coating, i.e. chemical vapour deposition [CVD] processes characterised by the method of coating
- C23C16/50—Chemical coating by decomposition of gaseous compounds, without leaving reaction products of surface material in the coating, i.e. chemical vapour deposition [CVD] processes characterised by the method of coating using electric discharges
- C23C16/511—Chemical coating by decomposition of gaseous compounds, without leaving reaction products of surface material in the coating, i.e. chemical vapour deposition [CVD] processes characterised by the method of coating using electric discharges using microwave discharges
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J37/00—Discharge tubes with provision for introducing objects or material to be exposed to the discharge, e.g. for the purpose of examination or processing thereof
- H01J37/32—Gas-filled discharge tubes
- H01J37/32009—Arrangements for generation of plasma specially adapted for examination or treatment of objects, e.g. plasma sources
- H01J37/32192—Microwave generated discharge
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J37/00—Discharge tubes with provision for introducing objects or material to be exposed to the discharge, e.g. for the purpose of examination or processing thereof
- H01J37/32—Gas-filled discharge tubes
- H01J37/32009—Arrangements for generation of plasma specially adapted for examination or treatment of objects, e.g. plasma sources
- H01J37/32192—Microwave generated discharge
- H01J37/32211—Means for coupling power to the plasma
- H01J37/3222—Antennas
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J37/00—Discharge tubes with provision for introducing objects or material to be exposed to the discharge, e.g. for the purpose of examination or processing thereof
- H01J37/32—Gas-filled discharge tubes
- H01J37/32009—Arrangements for generation of plasma specially adapted for examination or treatment of objects, e.g. plasma sources
- H01J37/32394—Treating interior parts of workpieces
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J37/00—Discharge tubes with provision for introducing objects or material to be exposed to the discharge, e.g. for the purpose of examination or processing thereof
- H01J37/32—Gas-filled discharge tubes
- H01J37/32431—Constructional details of the reactor
- H01J37/3244—Gas supply means
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J37/00—Discharge tubes with provision for introducing objects or material to be exposed to the discharge, e.g. for the purpose of examination or processing thereof
- H01J37/32—Gas-filled discharge tubes
- H01J37/32431—Constructional details of the reactor
- H01J37/3244—Gas supply means
- H01J37/32449—Gas control, e.g. control of the gas flow
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J37/00—Discharge tubes with provision for introducing objects or material to be exposed to the discharge, e.g. for the purpose of examination or processing thereof
- H01J37/32—Gas-filled discharge tubes
- H01J37/32431—Constructional details of the reactor
- H01J37/32458—Vessel
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
- B65D23/00—Details of bottles or jars not otherwise provided for
- B65D23/02—Linings or internal coatings
-
- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C16/00—Chemical coating by decomposition of gaseous compounds, without leaving reaction products of surface material in the coating, i.e. chemical vapour deposition [CVD] processes
- C23C16/02—Pretreatment of the material to be coated
- C23C16/0209—Pretreatment of the material to be coated by heating
Definitions
- the present invention relates to a device for coating containers with a barrier layer with at least one plasma chamber and a method for heating a container by means of such a device.
- Such devices are used, for example, in the vacuum control of a silicon oxide coating process, in particular in the plasma CVD coating of plastic containers, such as, for example, PET bottles.
- a coating barrier systems for different
- WO 98/40531 A1 it is also known to heat the PET bottles before they enter the coating system.
- a heating of the PET bottles in the coating system by means of a heating device embedded in the wall of a holder for the PET bottle is known from WO 2012/122559 A2. It is the object of the present invention to improve the barrier properties of the coating on the inner wall of the coated container and to enable better conditions for the hot filling process of the containers.
- the device for coating containers with a barrier layer has at least one plasma chamber which comprises at least one treatment station, in which at least one container with a container interior can be used and positioned at the treatment station.
- the plasma chamber is at least partially evacuable and is set up to at least partially fill the container interior with a plasma and a process gas.
- the device is designed such that the container is preheated by means of a plasma, in particular by means of a
- Microwave plasma can be carried out using a noble gas, the noble gas being able to be introduced into the interior of the container via the gas lance.
- a plasma to heat the containers, the energy used in the deposition of the barrier can be increased significantly and the barrier layer then has fewer defects, which leads to better barrier performance.
- a PET container in particular a PET bottle, is preferably used as the container.
- the container can also be made of another plastic, in particular PP, PE or POC.
- the coupled heating power into the container interior can be controlled by varying the gas lance length
- the microwave is coupled through the gas lance into the valve block, so that the heating plasma can be ignited over a higher pressure range, as a result of which different heating intensities for the plasma can be achieved.
- the microwave is coupled through the gas lance into the valve block, so that the heating plasma can be ignited for various gases
- the noble gas is taken from the group Ne, Ar, Kr and / or Xe; preferably only Ar, optionally with residual air, is taken as the noble gas.
- a further advantageous development of the invention provides that a heating tunnel is present in the device's conveying path into the device in front of it. This enables encapsulated air transport in the transfer area of a block machine.
- the heating carried out in the heating tunnel pre-stretches the
- Plasma chamber is part of a plasma wheel, which is a plurality of such
- Such a method for heating a container is carried out by means of an inventive device explained above. It is provided according to the invention that the heating by means of a plasma in a pressure range of 1-25 mbar, preferably in a pressure range of 1-5 mbar or in one
- Pressure range of 15-25 mbar using a noble gas. This makes it possible to introduce a well-defined output and thus quantity of heat into the container, which means that the temperature reached in the container can thereby be set exactly to a desired temperature at which the following processes, especially when applying the barrier layer, achieve particularly good results. If the process is carried out in the lower of the two pressure ranges mentioned, a gentler treatment of the inner surface of the container is made possible than at a higher pressure, but this takes more time. When the method is carried out in the higher of the two pressure ranges mentioned, the surface of the container is bombarded more strongly, which leads to faster heating of the inner surface of the container. In both pressure ranges there is a better surface modification compared to the prior art, which leads to better results with regard to heating, contact angle, surface roughness and pretreatment. Containers made of PET are preferably used.
- the noble gas is taken from the group Ne, Ar, Kr and / or Xe; preferably only Ar, optionally with residual air, is taken as the noble gas. This results in the advantages already explained above for the device with regard to the noble gases used.
- a further advantageous development of the method according to the invention provides that the mean power introduced by the plasma is in the range of 80-670 W, in particular 500 W, and / or the pulse power in the range of 250-2000 W, in particular 1,500 W, lies.
- the mean power introduced by the plasma is in the range of 80-670 W, in particular 500 W, and / or the pulse power in the range of 250-2000 W, in particular 1,500 W, lies.
- a further advantageous development of the method according to the invention provides that the temperature of the container is in the range from 30-75 ° C., preferably in the range from 33-70 ° C. and particularly preferably at 50 ° C. at
- the heater has a cycle duration in the range of 0-5,000 ms, in particular 3,000 ms, with a pulse duration in the range of 1-20 ms, preferably 10 ms, and a pause duration in the range of 10 -50 ms, preferably 20 ms.
- a further advantageous development of the method according to the invention provides that before this heating, the container is preheated to a temperature in the range of 80-200 ° C., in particular in a heating tunnel, which is arranged in an inlet to the plasma chamber. This results in the advantages with regard to the heating tunnel already explained above for the device.
- a filling material that is hotter than 50 ° C, preferably hotter than 70 ° C, particularly preferably hotter than 90 ° C.
- pasta sauces or other filling goods to be filled at such high temperatures can also be filled into the coated containers.
- Fig. 1 shows the dependence of the temperature of a bottle on the
- Fig. 3 shows the dependence of the temperature of a bottle on the pressure of the
- Fig. 4 shows the dependence of the plasma power or the reflection on the
- a coating system in the form of a plasma wheel was used, by means of which a barrier layer made of oxygen can be applied to a PET container in a plasma chamber after a silicon oxide deposition process has taken place.
- the PET container can then be filled with a product hotter than 90 ° C.
- the PET container was preheated using a plasma made of pure Ar (with a residual air content), which was ignited using a microwave unit.
- T S tart 20 ° C.
- the specified pulse-pause ratio was chosen in order to obtain controllability of the temperature distribution. Bottles made of PET with a volume of 500 ml and a weight of 29 g were used as the PET container.
- the specified measured temperature was always measured approx. 5 s after the plasma had gone out, since the sleeve for the vacuum first had to be removed in order to carry out a temperature measurement on the PET container using the existing one
- the average power (P_mean) of the energy input (in each case in watts) into the PET containers based on the Ar plasma is shown in Tab. 1.
- the set power P_korr (also given in watts) results from the product of the pulse power with the duty cycle and the factor (1 reflection). The reflection is also given in Table 1. Reflection is understood to mean the portion of the coupled power of the magnetron that is not absorbed by the plasma; this portion is reflected by the PET container and directed to a water load via a circulator, where it is converted into heat.
- Tab. 1 also shows the ratio of the final temperature of the PET container to its initial temperature.
- R 1 shows the results of the final temperature of the PET containers over the set output.
- R 2 is understood to be the regression coefficient which specifies a measure of certainty and describes how good the
- Bottle temperature T FiaS che rises with increasing pressure, because at higher pressures the number of collisions with the wall of the PET container increases and therefore a greater heat flow from the hot Ar plasma to the cold wall can take place. Above an Ar pressure of approx. 2 mbar, there is a good approximation of a linear dependence, which is indicated by a straight line with an offset of 40.332 and a
- FIG. 4 also shows the dependence of the set plasma power P_korr on the Ar pressure by means of squares standing on the edge.
- a particularly effective heating of the PET container is achieved by generating an Ar plasma at a pressure range of 15-25 mbar (P1 pressure range). The higher pressure creates a stronger ion bombardment on the surface of the PET container. Rapid, rapid heating of the inner surfaces with appropriate surface modification (heating, contact angle,
- Medium heating of the PET container can be achieved by igniting an Ar plasma at a pressure range of 1-5 mbar (P2 pressure range). This pressure range enables the surface to be treated more gently, but this takes more time. This is a medium warming of the inner
- the process can be optimized in particular through another heating tunnel in front of the coating system (encapsulated air transport, block machine transfer area) if it is only a matter of heating the PET container (pre-stretching).
- the heating expands the PET container so that the coating is carried out on an extended PET container (80-200 ° C).
- the barrier layer on its inner wall no longer expands, but only contracts in a cooling process that follows the filling of the PET container. Shrinkage is less destructive to the coating than elongation.
- Process control can be used, which stress the coating less and thus lead to better barrier performance (gas tightness, flexibility).
- different pre-treatments and conditions can be used, which stress the coating less and thus lead to better barrier performance (gas tightness, flexibility).
- the energy used (microwave energy) in the deposition of the barrier can be increased significantly.
- the layer can grow with fewer defects and the barrier performance can be improved.
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Plasma & Fusion (AREA)
- Analytical Chemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Chemical Vapour Deposition (AREA)
- Details Of Rigid Or Semi-Rigid Containers (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102018114776.7A DE102018114776A1 (de) | 2018-06-20 | 2018-06-20 | Vorrichtung zum Beschichten von Behältern mit einer Barriereschicht und Verfahren zur Heizung eines Behälters |
PCT/EP2019/066112 WO2019243378A1 (de) | 2018-06-20 | 2019-06-19 | Vorrichtung zum beschichten von behältern mit einer barriereschicht und verfahren zur heizung eines behälters |
Publications (1)
Publication Number | Publication Date |
---|---|
EP3810826A1 true EP3810826A1 (de) | 2021-04-28 |
Family
ID=66999830
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP19732336.3A Withdrawn EP3810826A1 (de) | 2018-06-20 | 2019-06-19 | Vorrichtung zum beschichten von behältern mit einer barriereschicht und verfahren zur heizung eines behälters |
Country Status (4)
Country | Link |
---|---|
US (1) | US20220013334A1 (de) |
EP (1) | EP3810826A1 (de) |
DE (1) | DE102018114776A1 (de) |
WO (1) | WO2019243378A1 (de) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102020130917A1 (de) | 2020-11-23 | 2022-05-25 | Khs Corpoplast Gmbh | Mehrweg-Kunststoffbehälter, Verfahren zum Waschen von solchen Behältern, Verfahren zum Beschichten von solchen Behältern und Behälterbehandlungsmaschine für die Getränkeindustrie |
Family Cites Families (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE69117077T2 (de) * | 1990-03-06 | 1996-06-27 | Sumitomo Electric Industries | Verfahren zum Aufwachsen einer Dünnschicht aus Diamant oder c-BN |
DE19629877C1 (de) | 1996-07-24 | 1997-03-27 | Schott Glaswerke | CVD-Verfahren und Vorrichtung zur Innenbeschichtung von Hohlkörpern |
US6223683B1 (en) | 1997-03-14 | 2001-05-01 | The Coca-Cola Company | Hollow plastic containers with an external very thin coating of low permeability to gases and vapors through plasma-assisted deposition of inorganic substances and method and system for making the coating |
DE19802333A1 (de) * | 1998-01-23 | 1999-07-29 | Leybold Systems Gmbh | Barriereschicht für Verpackungsmaterial und Verfahren zur Herstellung einer Barriereschicht für Verpackungsmaterial |
JP4595276B2 (ja) * | 2000-12-25 | 2010-12-08 | 東洋製罐株式会社 | マイクロ波プラズマ処理方法及び装置 |
AU2003229287A1 (en) * | 2002-05-24 | 2003-12-12 | Sig Technology Ltd. | Method and device for plasma treatment of work pieces |
DE102006058771B4 (de) * | 2006-12-12 | 2018-03-01 | Schott Ag | Behälter mit verbesserter Restentleerbarkeit und Verfahren zu dessen Herstellung |
US10081864B2 (en) | 2011-03-10 | 2018-09-25 | Kaiatech, Inc | Method and apparatus for treating containers |
DE102012110131A1 (de) * | 2012-10-24 | 2014-04-24 | Schott Ag | Verbundmaterial für ein pharmazeutisches Packmittel, Verfahren zu dessen Herstellung und Verwendung des Verbundmaterials |
US9725802B2 (en) * | 2014-11-11 | 2017-08-08 | Graham Packaging Company, L.P. | Method for making pet containers with enhanced silicon dioxide barrier coating |
DE102016105548A1 (de) | 2016-03-24 | 2017-09-28 | Khs Plasmax Gmbh | Verfahren und Vorrichtung zur Plasmabehandlung von Behältern |
US20200030847A1 (en) * | 2016-09-30 | 2020-01-30 | Sabic Global Technologies B.V. | Method for plasma coating on thermoplastic |
-
2018
- 2018-06-20 DE DE102018114776.7A patent/DE102018114776A1/de active Pending
-
2019
- 2019-06-19 US US17/253,365 patent/US20220013334A1/en not_active Abandoned
- 2019-06-19 EP EP19732336.3A patent/EP3810826A1/de not_active Withdrawn
- 2019-06-19 WO PCT/EP2019/066112 patent/WO2019243378A1/de unknown
Also Published As
Publication number | Publication date |
---|---|
WO2019243378A1 (de) | 2019-12-26 |
DE102018114776A1 (de) | 2019-12-24 |
US20220013334A1 (en) | 2022-01-13 |
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