EP1753544A1 - Dispositif de revetement - Google Patents
Dispositif de revetementInfo
- Publication number
- EP1753544A1 EP1753544A1 EP05731298A EP05731298A EP1753544A1 EP 1753544 A1 EP1753544 A1 EP 1753544A1 EP 05731298 A EP05731298 A EP 05731298A EP 05731298 A EP05731298 A EP 05731298A EP 1753544 A1 EP1753544 A1 EP 1753544A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- coating device
- bottle
- coating
- bottles
- washing apparatus
- 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.)
- Granted
Links
- 238000000576 coating method Methods 0.000 title claims abstract description 118
- 239000011248 coating agent Substances 0.000 title claims abstract description 117
- 238000005406 washing Methods 0.000 claims abstract description 45
- 239000011521 glass Substances 0.000 claims abstract description 8
- 239000004033 plastic Substances 0.000 claims abstract description 5
- 229920003023 plastic Polymers 0.000 claims abstract description 5
- 239000007921 spray Substances 0.000 claims description 55
- 239000000463 material Substances 0.000 claims description 19
- 238000005507 spraying Methods 0.000 claims description 7
- 238000010438 heat treatment Methods 0.000 claims description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 5
- 239000004698 Polyethylene Substances 0.000 claims description 3
- -1 polyethylene Polymers 0.000 claims description 3
- 229920000573 polyethylene Polymers 0.000 claims description 3
- 239000007788 liquid Substances 0.000 claims description 2
- 238000000034 method Methods 0.000 claims description 2
- 239000000203 mixture Substances 0.000 claims description 2
- 238000009420 retrofitting Methods 0.000 abstract description 3
- 238000007689 inspection Methods 0.000 description 8
- 238000009825 accumulation Methods 0.000 description 5
- 238000004140 cleaning Methods 0.000 description 4
- 238000009434 installation Methods 0.000 description 4
- 238000005299 abrasion Methods 0.000 description 3
- 230000008901 benefit Effects 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 238000004064 recycling Methods 0.000 description 3
- 239000002699 waste material Substances 0.000 description 3
- 241000894006 Bacteria Species 0.000 description 2
- 238000011109 contamination Methods 0.000 description 2
- 238000002372 labelling Methods 0.000 description 2
- 230000007246 mechanism Effects 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 238000005192 partition Methods 0.000 description 2
- 238000009877 rendering Methods 0.000 description 2
- 238000010408 sweeping Methods 0.000 description 2
- NIXOWILDQLNWCW-UHFFFAOYSA-N acrylic acid group Chemical group C(C=C)(=O)O NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 239000000443 aerosol Substances 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
- 235000013405 beer Nutrition 0.000 description 1
- 239000011247 coating layer Substances 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 230000001627 detrimental effect Effects 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 239000003595 mist Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000010422 painting Methods 0.000 description 1
- 235000014214 soft drink Nutrition 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- 239000013589 supplement Substances 0.000 description 1
- 238000009736 wetting Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
- B05B13/00—Machines or plants for applying liquids or other fluent materials to surfaces of objects or other work by spraying, not covered by groups B05B1/00 - B05B11/00
- B05B13/02—Means for supporting work; Arrangement or mounting of spray heads; Adaptation or arrangement of means for feeding work
- B05B13/0278—Arrangement or mounting of spray heads
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05C—APPARATUS FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05C9/00—Apparatus or plant for applying liquid or other fluent material to surfaces by means not covered by any preceding group, or in which the means of applying the liquid or other fluent material is not important
- B05C9/08—Apparatus or plant for applying liquid or other fluent material to surfaces by means not covered by any preceding group, or in which the means of applying the liquid or other fluent material is not important for applying liquid or other fluent material and performing an auxiliary operation
- B05C9/10—Apparatus or plant for applying liquid or other fluent material to surfaces by means not covered by any preceding group, or in which the means of applying the liquid or other fluent material is not important for applying liquid or other fluent material and performing an auxiliary operation the auxiliary operation being performed before the application
Definitions
- the present invention which is the result of work done by the inventor as consultant for Carlsberg Brewery, relates to a coating device for applying a coating to an outer surface of a bottle, such as a glass or plastic bottle.
- Bottles, especially returnable bottles, such as bottles for beer or soft drinks are subject to rough handling at the brewery during bottling, conveying etc and during transport to shops, by the consumer, and during recycling to the brewery. This rough handling may lead to surface damage of the bottle, or even breakage of the bottle. Surface damage, such as abrasion, will deteriorate the look of the bottle in that the bottle will look old and worn. Furthermore a worn surface will adversely affect inspection of the bottles, especially automatic inspection, as the worn surface will constitute a barrier for a light source normally used for the inspection.
- Breakage of bottles is of course another serious problem, as any content in the bottle will be lost, as well as the bottle itself, and cleaning is needed. If the bottle is made of glass the pieces of broken glass require caution during cleaning and sweeping up to minimize the risk of cuts. It is a known measure to apply a so-called "anti-scuffing" coating to the bottle.
- the coating provides a bottle having an outer surface with an im- proved resistance to scuffing.
- the prior art includes a complicated coating system adapted for mounting as a section of a bottle conveyor system in a brewery or the like. In this prior art coating system, the bottles are divided into e.g. 10 parallel rows of single lines. The bottles are rotated while they pass a vertical liquid- filled sponge, whereby the vertical surfaces of the bottle are coated.
- a disadvantage of this prior art system is that it introduces a bottleneck in the conveyor system, as the bottles are divided into parallel rows, which may lead to accumulation. Such bottlenecks are highly undesirable, as the risk of jam- ming of the conveyor system increases, and the risk of break of bottles increases, which further increases the risk of jamming in the conveyor system. Retrofitting such a coating system into an existing conveyor system is furthermore a relatively compli- cated and extensive operation, and thus expensive.
- Another prior art coating system comprises an air-controlled nozzle mounted on a driving mechanism across a bottle conveyor. Bottles are coated on one side as the nozzle advances between the rows of bot- ties and on the other side as the nozzle returns. This system is also relatively complicated and necessitates a relatively complicated driving and control mechanism.
- Yet another prior art coating system comprises two or more air-controlled spray nozzles mounted on opposite sides of a bottle conveyor.
- the bottles are coated from both sides as they pass the nozzles, which spray continuously.
- It is however a disadvantage that the bottles pass the nozzles with a velocity as this makes it difficult to apply an even coating layer on the bottles.
- the continuous spraying leads to a high rate of waste of coating material, which increases the cost and the need for cleaning around the spray nozzles.
- the continuous spraying creates an aerosol of coating material, which may enter the bottles and possibly contaminate the content of the bottle.
- US patent no. 5,686,188 discloses a coating method and system for applying a topcoat to glass bottles.
- the coat is a heat- or UV-curable acrylic material, which is sprayed on the bottle, solvents flashed off and the remaining solids cured with heat or UV-light. It is stated that the resulting coating is at once scratch and abrasion resistant, impact resistant and retains a high gloss throughout its life.
- the coat may be applied after labelling to protect the label of the bottle.
- This coating system is intended for operation in bottle production, whereas it is unsuitable for applying a coat to a bottle in a bottle recycling facility. The system requires curing of the applied coat by heat or UV-light, rendering the system relatively complex and thus expensive.
- 3,952,698 relates to a can treating system for washing and coating metal can bodies immediately after the can bodies are drawn and subse- quently washed and rinsed.
- the coating is applied simultaneous to both the inside and the outside can surfaces by spray nozzles arranged above and below a conveyor transporting the can bodies.
- the coating is applied to the metal cans to avoid attack by the con- tents, i.e. for corrosion proofing.
- the coating is subsequently cured by passing the can bodies through an oven, and the coating can hence be seen as a painting of the can bodies.
- This coating system is intended for operation in can production, whereas it is unsuitable for applying a coat to a bottle in a bottle recycling facility.
- the system requires curing of the applied coat by heat, rendering the system relatively complex and thus expensive.
- a coating device for applying a coating to an outer surface of a bottle is characterized in that said coating device is adapted for mounting at an exit of a bottle washing apparatus.
- the exit of the bottle washing apparatus may be seen as the entry to the brewery or factory, i.e. the conveyor system, filling stations, inspection, labelling etc.
- Use of a coating device at an exit of a bottle washing apparatus is particularly advantageous in that by coating the bottles at this early point, the coating will confer maximum protection against scuffing, as the bottles are protected from their entry in the system.
- the coating device is adapted for mounting at an exit of the bottle washing apparatus facilitates retrofitting on existing installations with minimum intervention in the existing installation. Thus the functioning of the existing installation will not be deteriorated.
- the bottles are slightly wet, which is found to be advantageous for the application of the coating. Furthermore the bottles are still at an elevated temperature as a result of the preceding washing proc- ess, which is also found to be advantageous.
- the coating device may comprise sponges, brushes or rollers, for application of the coating.
- the coating de- vice comprises at least one spray nozzle arranged at the exit of the bottle washing apparatus. The spray nozzle may supply a coating material without any contact with the bottle, which could restrict the functioning of the system.
- the spray nozzle is not prone to contamination, as there is no direct contact between the bottle and the spray nozzle.
- spaced spray nozzles are arranged on opposite sides of an exit line for bottles leaving the bottle washing apparatus.
- each spray nozzle may be arranged between exits to cover bottles leaving two adjacent exits .
- the spray nozzles may be provided with a shield to avoid spray to enter an opening of the bottle.
- the coating device may comprise a protection shield arranged above the bottles to at least partially cover any openings in the top thereof .
- the coating device may comprise a hinge to be tiltable or swingable away from an active operating position.
- the coating device may comprise locking means for locking the coating device in the operating position, to avoid the potential risk of inadvertedly tilting or swinging the coating device away from the operating position.
- the spray nozzles continuously spray a coating material, how- ever to reduce the waste of coating material
- the coating device may comprise spray actuation means for triggering spray, so the nozzles are activated at the presence or potential presence of a bottle at a coating position, whereas the nozzle spray is discontin- ued when a bottle is not present or cannot be present at the coating position.
- the coating material may be any suitable material, such as a liquid mixture of water and polyethylene, which is found to provide a number of advan- tages, such as ease of application by spraying, cost of coating material, and anti-scuffing features of resulting coating. Furthermore, an anti-scuffing coating of this material will stay on the bottles, until the bottles return to the washing apparatus again, where the coating is washed off, without any detrimental effect.
- the coating device further comprises heating means for heating the coating material to an application temperature in the range of 50-80°C, preferably approximately 60 °C. The heating reduces the risk of contamination of the bottle by bacteria or the like in the coating material, as most bacteria are killed at elevated temperatures.
- the coating device may further comprise back-pressure valves arranged at the nozzles, whereby dripping of the nozzles in closed position is eliminated.
- the coating device may comprise means for tilting the spray nozzles during spraying, whereby the spray can perform a sweeping motion on the bottle, to produce a uniform coat- ing.
- Another aspect of the invention relates to a method for coating an outer surface of a bottle, comprising the steps of: providing a bottle, providing a bottle washing apparatus and washing the bottle in the bottle washing apparatus, characterized in the further step of coating the bottle immediately after the bottle leaves the bottle washing apparatus.
- Fig. la is a cross-section of an exit end of a washing apparatus with a coating device
- Fig. lb is a front view of the washing apparatus with the coating device
- Fig. 2 is an enlarged schematic front view of the coating device
- Fig. 3 is an enlarged schematic side view of the coating device
- Fig. 4 is an enlarged schematic plan view of the coating device.
- Fig. la can be seen a cross-section of an exit end of a washing apparatus 2 for bottles. After washing the bottles 3 are discharged to an exit area, which may hold a line of two-three bottles from each exit. Each bottle 3 delivered from the washing apparatus 2 pushes the outermost bottle onto an accumulation conveyor 4 bringing the bottles to the next station.
- a coating device 5 is arranged above the bot- ties 3 at the exit of the washing apparatus.
- the coating device may comprise a spray nozzle 6 arranged between two exits, as seen in Fig. lb, adapted for applying a water soluble anti-scuffing polish or shine to the outer surface of the bottles.
- the coating device 5 is mounted above the accumulation conveyor 4 and may comprise a hinge means 7 to enable at least a part of the coating device to be tiltable or swingable from an active posi- tion to a passive position 8, in which the spray nozzles may be inspected and cleaned, if necessary.
- a frontal view of the exit end of the washing apparatus for bottles is illustrated in Fig. lb.
- the coating device 5 is mounted on a rack 9 extending in the full width of the washing apparatus 2.
- the rack 9 may be mounted permanently or re- leasably on the washing apparatus, such as by means of bolts, above the exit.
- the coating device 5 also extends in the full width of the washing apparatus, and spray nozzles 6 are arranged between the exits from the washing apparatus.
- the spray nozzles 6 face downwards and the spray nozzles 6 are arranged at a level substantially aligned with the top of the bottles, so the bottles 3 are spray-coated from the top down.
- the spray nozzles are arranged to coat from approximately 10 mm below the opening downwards .
- Fig. 2 is a schematic front view of a coating device.
- Bottles 3 from the washing apparatus are delivered to the exit between partitions 10.
- the coating device comprises a feed conduit 11 and a number of spray nozzles 6, each arranged substantially with equal spacing to adjacent lines of bottles 3, so each spray nozzle 6 may apply coating to two bottles.
- a screen 12 may be arranged around each spray nozzle 6, to prevent any stray jets from the spray nozzles from entering the opening of the bottles. Such stray jets may for example result from clogging of the spray nozzle.
- Fig. 3 illustrates a side view of a line of three bottles 3, which have just left a washing appa- ratus . The bottles 3 travel in the direction indicated by the arrow, when a new bottle exits the washing apparatus, to enter an accumulation conveyor bringing the bottles to the next station.
- the spray nozzles 6 may be provided with a back-pressure valve (not shown) to control the spray- ing, to turn off the spray nozzles and avoid dripping when the spray nozzles are not spraying.
- Actuation of the spray nozzles may be provided by a signal from the washing apparatus, or a sensor, such as a photo cell (not shown) detecting the presence of bottles at a coating position.
- the spray nozzles may spray continuously, making the device particularly simple, however increasing the consumption of coating material.
- Fig. 4 the arrangement of the coating device of Fig.
- the bottles are coated immediately after leaving the washing apparatus, i.e. before any scuffing of the bottles can take place. This means that the bottles are protected by an anti-scuffing coating all the way through their entire life cycle.
- the benefits of the invention are evident with regard to glass bottles, but also with returnable plastic bottles, such as PEN-bottles, the benefits are pronounced.
- the present invention has been tested with good results on a Simonazzi bottle washing apparatus, which delivers 78 bottles every 3 seconds.
- the coat- ing device was installed without alteration or modification of the washing apparatus. It was found that the coating device worked well and did not deteriorate the functioning of the washing apparatus or other parts of the installation.
- the bottles were coated with 0.4 ml of TEGOGLAS ® 3000 plus (an aqueous polyethylene dispersion) supplied by ATOFINA Vlissin- gen B.V., PO Box 70, NL-4380 AB Vlissingen, The Neth- erlands .
- TEGOGLAS ® 3000 plus an aqueous polyethylene dispersion supplied by ATOFINA Vlissin- gen B.V., PO Box 70, NL-4380 AB Vlissingen, The Neth- erlands .
- This amount was found to be a good compromise, as more coating makes it difficult to label the bottles, and less coating does not provide the necessary anti-scuffing protection.
- the coated bottles will reduce noise generation, as the rattling noise of the bottle will be moderated. Further an increased flow of bottles with fewer disturbances is expected, and less breakage due to scuffing and abrasion. Moreover it is likely that consumption of water in the detection or inspection station
- the preferred type of spray nozzle is a so-called flat spray nozzle having a spray angle at 3 bar of 80° and a capacity of 0.07 litres per minute at 3 bar.
- other types of spray nozzles may be used, such as a so-called hollow cone nozzle, which could be used to spray the bottles when they are stationary, however with a considerable waste of coating material.
- air atomizing nozzles could be used, such as nozzles having a flat or circular spray pattern, however considerable amounts of mist would result, which may be unfavourable.
Landscapes
- Spray Control Apparatus (AREA)
- Surface Treatment Of Glass (AREA)
- Coating Apparatus (AREA)
Abstract
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PL05731298T PL1753544T3 (pl) | 2004-04-21 | 2005-04-20 | Urządzenie do powlekania |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DKPA200400628 | 2004-04-21 | ||
PCT/DK2005/000269 WO2005102540A1 (fr) | 2004-04-21 | 2005-04-20 | Dispositif de revetement |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1753544A1 true EP1753544A1 (fr) | 2007-02-21 |
EP1753544B1 EP1753544B1 (fr) | 2014-04-09 |
Family
ID=34964223
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP05731298.5A Active EP1753544B1 (fr) | 2004-04-21 | 2005-04-20 | Dispositif de revetement |
Country Status (8)
Country | Link |
---|---|
EP (1) | EP1753544B1 (fr) |
BR (1) | BRPI0510049B1 (fr) |
DK (1) | DK1753544T3 (fr) |
ES (1) | ES2474725T3 (fr) |
MX (1) | MXPA06012178A (fr) |
PL (1) | PL1753544T3 (fr) |
WO (1) | WO2005102540A1 (fr) |
ZA (1) | ZA200609415B (fr) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
MA43427A (fr) | 2015-12-10 | 2021-05-12 | Ecolab Usa Inc | Composition de masquage d'abrasion destinée à être utilisée avec des récipients réutilisables et son procédé d'utilisation |
Family Cites Families (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2926101A (en) * | 1956-11-23 | 1960-02-23 | Owens Illinois Glass Co | Method of treating glass container surfaces |
US3195501A (en) * | 1961-02-20 | 1965-07-20 | Owens Illinois Glass Co | Apparatus for spray coating glassware |
US3509852A (en) * | 1967-11-24 | 1970-05-05 | Armstrong Cork Co | Glass container coating machine |
DE1919646C3 (de) * | 1969-04-18 | 1979-08-09 | Baxter Travenol Laboratories, Inc., Deerfield, Ill. (V.St.A.) | Verfahren und Vorrichtung zum Bestäuben von Gegenständen, insbesondere von unregelmäßig gestalteten Gegenständen aus Kunststoff oder Kautschuk |
GB1347655A (en) * | 1972-07-13 | 1974-02-27 | Shell Int Research | Coated bottle |
US4420578A (en) * | 1980-11-10 | 1983-12-13 | Diversey Corporation | Surface treatment of glass containers |
US6776359B2 (en) * | 2001-11-06 | 2004-08-17 | Kolene Corporation | Spray nozzle configuration |
-
2005
- 2005-04-20 PL PL05731298T patent/PL1753544T3/pl unknown
- 2005-04-20 BR BRPI0510049-6A patent/BRPI0510049B1/pt not_active IP Right Cessation
- 2005-04-20 ES ES05731298.5T patent/ES2474725T3/es active Active
- 2005-04-20 WO PCT/DK2005/000269 patent/WO2005102540A1/fr active Application Filing
- 2005-04-20 MX MXPA06012178A patent/MXPA06012178A/es active IP Right Grant
- 2005-04-20 DK DK05731298.5T patent/DK1753544T3/da active
- 2005-04-20 EP EP05731298.5A patent/EP1753544B1/fr active Active
- 2005-04-21 ZA ZA200609415A patent/ZA200609415B/en unknown
Non-Patent Citations (1)
Title |
---|
See references of WO2005102540A1 * |
Also Published As
Publication number | Publication date |
---|---|
WO2005102540A1 (fr) | 2005-11-03 |
PL1753544T3 (pl) | 2014-09-30 |
ZA200609415B (en) | 2008-07-30 |
DK1753544T3 (da) | 2014-06-30 |
EP1753544B1 (fr) | 2014-04-09 |
MXPA06012178A (es) | 2007-03-26 |
BRPI0510049B1 (pt) | 2018-07-31 |
BRPI0510049A (pt) | 2007-10-16 |
ES2474725T3 (es) | 2014-07-09 |
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