EP0925236A1 - Spraying can - Google Patents

Spraying can

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Publication number
EP0925236A1
EP0925236A1 EP97941980A EP97941980A EP0925236A1 EP 0925236 A1 EP0925236 A1 EP 0925236A1 EP 97941980 A EP97941980 A EP 97941980A EP 97941980 A EP97941980 A EP 97941980A EP 0925236 A1 EP0925236 A1 EP 0925236A1
Authority
EP
European Patent Office
Prior art keywords
spray
pressure
paint
bar
propellant
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
Application number
EP97941980A
Other languages
German (de)
French (fr)
Other versions
EP0925236B1 (en
Inventor
Rolf Schiestel
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Peter Kwasny GmbH
Original Assignee
Peter Kwasny GmbH
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Filing date
Publication date
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Classifications

    • 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
    • B65D83/00—Containers or packages with special means for dispensing contents
    • B65D83/14—Containers or packages with special means for dispensing contents for delivery of liquid or semi-liquid contents by internal gaseous pressure, i.e. aerosol containers comprising propellant for a product delivered by a propellant
    • B65D83/75—Aerosol containers not provided for in groups B65D83/16 - B65D83/74
    • B65D83/752—Aerosol containers not provided for in groups B65D83/16 - B65D83/74 characterised by the use of specific products or propellants
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B9/00—Spraying apparatus for discharge of liquids or other fluent material, without essentially mixing with gas or vapour
    • B05B9/03—Spraying apparatus for discharge of liquids or other fluent material, without essentially mixing with gas or vapour characterised by means for supplying liquid or other fluent material
    • B05B9/04—Spraying apparatus for discharge of liquids or other fluent material, without essentially mixing with gas or vapour characterised by means for supplying liquid or other fluent material with pressurised or compressible container; with pump
    • B05B9/08—Apparatus to be carried on or by a person, e.g. of knapsack type
    • B05B9/0805—Apparatus to be carried on or by a person, e.g. of knapsack type comprising a pressurised or compressible container for liquid or other fluent material

Definitions

  • the invention relates to a spray can, in particular for paints and paint preparation materials - both referred to below for short as "paint material" -, the spray can being pressurized with propellant, in particular propellant gas, so that the paint material can be sprayed when a valve is opened.
  • propellant in particular propellant gas
  • the application rate of the paint of usually about 10 g can be achieved within 10 seconds in the case of conventional spray cans which have a pressure of 3.5 to 3.6 bar, increase to about 20 g to 24 g in the same time unit.
  • this goes hand in hand with an increased application efficiency compared to a conventional spray gun.
  • This is based essentially on the fact that no compressed air is used in the spray can according to the invention, while in the case of spray guns the material to be sprayed is exposed to a pneumatic pressure which creates a paint mist and, moreover, causes an air rebound in front of the workpiece, so that the paint particles approaching in part be thrown back. This effect is called "overspray".
  • the pressure increase desired compared to conventional spray cans can be achieved according to the invention by adding an additional amount of propane to the known propane-butane mixture, which produces a pressure of about 4.2 bar at 20 ° C. the pressure in the spray can reaches the desired value.
  • a pressure of about 5.2 bar can be achieved according to the invention in that the propellant mixture is 72% from the known propane-butane mixture at a pressure of 4.2 bar at 20 ° C and 28% from propane at a pressure of 9.1 bar at 20 ° C.
  • Known spray cans usually use a propane-butane mixture as propellant, in which the ratio of propane to butane varies from 50:50 to 65% propane and 35% butane.
  • the pressure of the propane / butane propellant mixture is always set exactly by the manufacturer to the desired value of 4.2 bar. This leads together with that to be sprayed Paint material at a pressure in the spray can of 3.5 to 3.6 bar.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Dispersion Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Application Of Or Painting With Fluid Materials (AREA)
  • Containers And Packaging Bodies Having A Special Means To Remove Contents (AREA)
  • Nozzles (AREA)
  • Manufacturing Of Micro-Capsules (AREA)
  • Road Repair (AREA)
  • Spray Control Apparatus (AREA)
  • Details Or Accessories Of Spraying Plant Or Apparatus (AREA)

Abstract

A spray can, particularly for paints and paint preparation materials, is pressurized with a propellant, particularly propellant gas, as a result of which the paint material can be sprayed when a valve is opened. In order to substantially increase the paint output amount per unit time so that a greater layer thickness is achieved in the same working time, the propellant provided in the spray generates a pressure of 4.5 to 6 bar, the output amount of the paint material is 15 g to 35 g per 10 seconds for uninterrupted flow, and that the paint is output in the form of broad-stream atomization.

Description

Sprühdose Spray can
Die Erfindung betrifft eine Sprühdose, insbesondere für Lacke und Lackiervorbereitungsmaterialien - beides nachfolgend kurz "Lackmaterial" genannt -, wobei die Sprühdose mit Treibmittel, insbesondere Treibgas, unter Druck gesetzt wird, wodurch das Lackmaterial bei Öffnen eines Ventils versprüht werden kann.The invention relates to a spray can, in particular for paints and paint preparation materials - both referred to below for short as "paint material" -, the spray can being pressurized with propellant, in particular propellant gas, so that the paint material can be sprayed when a valve is opened.
Derartige Sprühdosen sind seit vielen Jahren für unterschiedlichste Anwendungsbereiche und für unterschiedlichste zu versprühende Materialien bekannt und werden insbesondere für den Haushalt sowie den Heimwerkerbereich in Millionen Stückzahlen vertrieben. Sprühdosen für Lacke und Lackiervor- bereitungsmaterialien werden überwiegend im Do-it-yourself- Bereich verwendet . Im handwerklichen Bereich oder in der industriellen Serienlackierung erfolgt die Beschichtung überlicherweise durch Druckluft-, Airless-, luftunterstützte Airless- oder elektrostatische Zerstäubung. Insbesondere in der handwerklichen oder industriellen Autoreparatur-Lackierung werden entweder Niederdruck-Farbspritzgeräte oder Hochdruck- Farbspritzgeräte verwendet; die weiteren oben genannten Verfahren nur in geringem Maße. Bei dem Hochdruck-Spritzen handelt es sich um das am meisten verbreitete Lackierverfahren. Auch wenn dabei die Qualität der Oberfläche bei der Serienlackierung in der Automobil-Industrie oder bei Repara- turlackierungen den gewünschten Anforderungen entspricht, muß bedacht werden, daß dieses Lackierverfahren den größten "Overspray" hat und nur einen Auftragswirkungsgrad von etwa 30% bis 50% erreicht.Spray cans of this type have been known for many years for a very wide range of applications and for a wide variety of materials to be sprayed and are sold in millions, in particular for the household and for the DIY sector. Spray cans for paints and paint preparation materials are mainly used in the do-it-yourself area. In the craft sector or in industrial serial painting, the coating is usually carried out by compressed air, airless, air-assisted airless or electrostatic atomization. In the artisan or industrial car refinishing, in particular, either low-pressure paint spraying devices or high-pressure paint spraying devices are used; the other methods mentioned above only to a small extent. High pressure spraying is the most common painting process. Even if the quality of the surface for series painting in the automotive industry or for repair painting corresponds to the desired requirements, it must be borne in mind that this painting process has the greatest "overspray" and only achieves an application efficiency of around 30% to 50% .
Während beim Hochdruck-Spritzen die Druckluft-Zerstäubung mitWhile with high pressure spraying the compressed air atomization
Drücken von 1,5 bis 5 bar erfolgt, erfolgt die Zerstäubung des Lackmaterials beim Niederdruck-Spritzen bei Drücken im Bereich von 0,7 bis 1,0 bar. Dieses Niederdruck-Spritzverfahren benötigt hohe Luftvolumina, die u.a. mit Gebläsen erzeugt werden. Da in bestimmten Staaten derU.S.A. für Farbspritz- arbeiten der Zerstäuberdruck auf 0,7 bar begrenzt sein muß und gleichzeitig ein Auftragswirkungsgrad von mindestens 65% gefordert wird, wurden in jüngster Zeit Farbspritzgeräte entwickelt, die unter der Bezeichnung HVLP (= High Volume Low Pressure) auf den Markt gebracht wurden. Gegenüber der konventionellen Druckluftzerstäubung mit 3,5 bis 4 bar hat das Niederdruck-Spritzen den Vorteil, daß Farbnebel ( "Overspray" ) weitgehend vermieden werden und damit eine hohe Materialausbeute sowie ein wesentlich verbesserter Auftragswirkungsgrad erzielt wird.Pressures from 1.5 to 5 bar are carried out, the paint material is atomized during low-pressure spraying at pressures in the area from 0.7 to 1.0 bar. This low pressure spraying process requires high air volumes, which are generated with blowers, among other things. Since the atomizing pressure for paint spraying work has to be limited to 0.7 bar in certain states of the United States and at the same time an application efficiency of at least 65% is required, paint spraying devices have recently been developed which are known as HVLP (= High Volume Low Pressure ) were brought onto the market. Compared to conventional compressed air atomization with 3.5 to 4 bar, low-pressure spraying has the advantage that paint overspray is largely avoided and a high material yield and a substantially improved application efficiency are achieved.
Herkömmliche Sprühdosen werden wegen ihrer geringen Lackausbringmenge und dem stark ungleichmäßigen Lackauftrag von professionellen Anwendern wie Autoreparaturwerkstätten oder in der industriellen Serienlackierung nur in sehr geringem Umfang verwendet, sondern vorwiegend im Do-it-yourself- Bereich.Conventional spray cans are only used to a very limited extent by professional users such as car repair shops or in industrial serial painting because of their low paint application rate and the very uneven paint application, but mainly in the do-it-yourself area.
Aufgabe der vorliegenden Erfindung ist daher, Sprühdosen der eingangs genannten Art dahingehend zu verbessern, daß ihre Lackausbringmenge pro Zeiteinheit deutlich erhöht wird, wodurch bei gleicher Arbeitszeit eine deutlich höhere Schichtstärke bei gleichzeitig deutlich verbessertem Lack- Verlauf auf dem Werkstück erreicht wird.The object of the present invention is therefore to improve spray cans of the type mentioned at the outset in such a way that their coating application rate per unit of time is significantly increased, as a result of which a significantly higher layer thickness is achieved with the same working time and at the same time the coating process on the workpiece is significantly improved.
Diese Aufgabe wird erfindungsgemäß dadurch gelöst, daß das Treibmittel in der Sprühdose einen Druck von 4,5 bis 6 bar erzeugt, daß die Ausbringmenge des Lackmaterials bei ununterbrochener Ausbringung 15 g bis 35 g pro 10 Sekunden beträgt und daß die Ausbringung in Form einer Breitstrahlzerstäubung erfolgt. Mit dieser Lösung wird eine Sprühdose geschaffen, die aufgrund höherer Ausbringungsmengen zur Verwendung im professionellen Bereich geeignet sind, insbesondere zur Verarbeitung von Lacken und Lackvorbereitungsmaterialien bei professionellen Autolackierern. Wie Meßergebnisse zeigen, ist der Auftragswirkungsgrad der erfindungsgemäßen Lacksprühdose vergleichbar oder besser dem einer modernen HVLP-Lack- spritzpistole. Durch die Ausbringung des Lackmaterials in Form einer Breitstrahlzerstäubung wird eine Arbeitsgeschwindigkeit ermöglicht, die der Arbeitsgeschwindigkeit einer Spritzpistole nahekommt. Außerdem ist die Verteilung der Lackpartikel durch den erhöhten Druck in Verbindung mit der Breitstrahlzerstäubung so fein, daß Verlauf und Lackstand vergleichbare Ergebnisse wie bei Einsatz einer Spritzpistole bringen.This object is achieved in that the propellant generates a pressure of 4.5 to 6 bar in the spray can, that the application rate of the coating material is 15 g to 35 g per 10 seconds with continuous application and that the application takes place in the form of a wide jet atomization . With this solution, a spray can is created that is suitable for use in the professional field due to the higher application rates, in particular for processing paints and paint preparation materials for professional car painters. As measurement results show, the application efficiency of the paint spray can according to the invention is comparable or better than that of a modern HVLP paint spray gun. The application of the lacquer material in the form of a wide jet atomization enables a working speed that is close to the working speed of a spray gun. In addition, the distribution of the paint particles due to the increased pressure in connection with the wide jet atomization is so fine that the flow and paint level produce results comparable to those obtained when using a spray gun.
Gemäß einer bevorzugten Ausgestaltung der Erfindung beträgt der Druck in der Sprühdose 5,0 bis 5,5 bar. Die Ausbringmenge des Lackmaterials kann bei ununterbrochener Ausbringung dabei vorteilhafterweise 18 g bis 28 g pro 10 Sekunden betragen.According to a preferred embodiment of the invention, the pressure in the spray can is 5.0 to 5.5 bar. The application rate of the lacquer material can be advantageously 18 g to 28 g per 10 seconds with continuous application.
Beträgt der Druck in der Sprühdose bei einer besonders vorteilhaften Ausgestaltung der Erfindung 5,2 bar, läßt sich die Ausbringmenge des Lackes von üblicherweise ca. 10 g innerhalb von 10 Sekunden bei herkömmlichen Sprühdosen, die über einen Druck von 3,5 bis 3,6 bar verfügen, auf etwa 20 g bis 24 g in der gleichen Zeiteinheit steigern. Dies geht erfindungsgemäß einher mit einem gegenüber einer herkömmlichen Spritzpistole erhöhten Auftragungswirkungsgrad. Dieser beruht im wesentlichen darauf, daß bei der erfindungsgemäßen Sprühdose keine Druckluft verwendet wird, während bei Spritzpistolen das zu versprühende Material einem pneumatischen Druck ausgesetzt wird, der einen Farbnebel erzeugt und darüber hinaus einen Luftrückprall vor dem Werkstück verursacht, so daß die anfliegenden Lackpartikel zum Teil zurückgeworfen werden. Dieser Effekt wird als "Overspray" bezeichnet.If the pressure in the spray can is 5.2 bar in a particularly advantageous embodiment of the invention, the application rate of the paint of usually about 10 g can be achieved within 10 seconds in the case of conventional spray cans which have a pressure of 3.5 to 3.6 bar, increase to about 20 g to 24 g in the same time unit. According to the invention, this goes hand in hand with an increased application efficiency compared to a conventional spray gun. This is based essentially on the fact that no compressed air is used in the spray can according to the invention, while in the case of spray guns the material to be sprayed is exposed to a pneumatic pressure which creates a paint mist and, moreover, causes an air rebound in front of the workpiece, so that the paint particles approaching in part be thrown back. This effect is called "overspray".
Die gegenüber herkömmlichen Sprühdosen gewünschte Druck- erhöhung läßt sich erfindungsgemäß dadurch erreichen, daß dem bekannten Propan-Butan-Gemisch, das einen Druck von etwa 4,2 bar bei 20°C erzeugt, ein zusätzlicher Anteil Propan bis zu einer Menge beigemischt wird, bei der der Druck in der Sprühdose den gewünschten Wert erreicht. Ein Druck von etwa 5,2 bar läßt sich erfindungsgemäß dadurch erreichen, daß das Treibgasgemisch zu 72% aus dem bekannten Propan-Butan-Gemisch mit einem Druck von 4,2 bar bei 20°C und zu 28% aus Propan mit einem Druck von 9,1 bar bei 20° C besteht.The pressure increase desired compared to conventional spray cans can be achieved according to the invention by adding an additional amount of propane to the known propane-butane mixture, which produces a pressure of about 4.2 bar at 20 ° C. the pressure in the spray can reaches the desired value. A pressure of about 5.2 bar can be achieved according to the invention in that the propellant mixture is 72% from the known propane-butane mixture at a pressure of 4.2 bar at 20 ° C and 28% from propane at a pressure of 9.1 bar at 20 ° C.
Durch die erfindungsgemäße Ausbringung des Lackmaterials in Form einer Breitstrahlzerstäubung läßt sich die erhöhte Lackausbringmenge mit homogener Verteilung der Lackpartikel in einem der Spritzpistole nachempfundenen ellipsenförmigen Spritzbild wesentlich gleichmäßiger zerstäuben als die herkömmliche Rundstrahldüse. Damit wird eine optimale Verarbeitung der Lackmaterialien ermöglicht.Due to the application of the paint material in the form of a wide-jet atomization according to the invention, the increased amount of paint applied with a homogeneous distribution of the paint particles in an elliptical spray pattern based on the spray gun can be atomized much more uniformly than the conventional omnidirectional nozzle. This enables optimal processing of the coating materials.
Weitere Merkmale, Vorteile und Anwendungsmöglichkeiten der Erfindung ergeben sich aus der nachfolgenden Beschreibung von Beispielen der Erfindung im Vergleich zum bekannten Fachwissen.Further features, advantages and possible uses of the invention result from the following description of examples of the invention in comparison with the known specialist knowledge.
Beispiel 1 :Example 1 :
Bekannte Sprühdosen verwenden als Treibgas üblicherweise ein Propan-Butan-Gemisch, bei dem das Verhältnis von Propan zu Butan von 50:50 bis zu 65% Propan und 35% Butan schwankt. Der Druck des Treibgasgemisches Propan/Butan wird dabei vom Hersteller immer exakt auf den gewünschten Wert von 4,2 bar eingestellt. Dies führt zusammen mit dem zu versprühenden Lackmaterial zu einem Druck in der Sprühdose von 3,5 bis 3,6 bar.Known spray cans usually use a propane-butane mixture as propellant, in which the ratio of propane to butane varies from 50:50 to 65% propane and 35% butane. The pressure of the propane / butane propellant mixture is always set exactly by the manufacturer to the desired value of 4.2 bar. This leads together with that to be sprayed Paint material at a pressure in the spray can of 3.5 to 3.6 bar.
Beispiel 2:Example 2:
Das erfindungsgemäße Treibgasgemisch besteht zu 72% aus dem in Beispiel 1 beschriebenen Propan/Butan-Gemisch mit einem Druck von 4,2 bar.28% des erfindungsgemäßen Treibgasgemisches ist reines Propan mit einem Druck von 9,1 bar. Insgesamt ergibt dieses einen Sprühdosen-Druck von 5,2 bar.72% of the propellant gas mixture according to the invention consists of the propane / butane mixture described in Example 1 at a pressure of 4.2 bar. 28% of the propellant gas mixture according to the invention is pure propane at a pressure of 9.1 bar. Overall, this results in a spray can pressure of 5.2 bar.
Dieser in Verbindung mit einer Breitstrahlzerstäubung äußerst vorteilhafte Sprühdosen-Druck muß für jedes Lackmaterial individuell eingestellt werden. So hängt die Materialaus- bringung entscheidend auch von dem zu verspritzenden Lackmaterial ab. Je höher gefüllt das Lackmaterial ist, d.h. je höher der Feststoffgehalt des verspritzten Lackmaterials ist, desto höher ist der benötigte Druck, um die gewünschte Aussprühmenge zu erreichen.This spray can pressure, which is extremely advantageous in connection with wide jet atomization, must be set individually for each coating material. The material output also depends crucially on the paint material to be sprayed. The higher the filling material is, i.e. the higher the solids content of the sprayed paint material, the higher the pressure required to achieve the desired spray rate.
Durch die Abstimmung der Höhe des Sprühdosen-Druckes auf die Ausbringmenge des Lackmaterials wird ein Auftragswirkungsgrad erreicht, der dem einer modernen HVLP-Lackspritzpistole entspricht. Auch ist die Verteilung der Lackpartikel durch den erhöhten Druck und die Breitstrahlzerstäubung so fein, daß Verlauf und Lackstand vergleichbare Ergebnisse zum Spritzpistoleneinsatz bringen und dies bei vergleichbaren Arbeitsgeschwindigkeiten. Messungen der Schichtdicken zeigen, daß mit der erfindungsgemäßen Sprühdose gegenüber den Spritzpistolen höhere Schichtdicken in gleicher Zeiteinheit erzielbar sind.By coordinating the height of the spray can pressure with the application rate of the paint material, an application efficiency is achieved that corresponds to that of a modern HVLP paint spray gun. The distribution of the paint particles is also so fine due to the increased pressure and the wide jet atomization that the course and paint level bring comparable results to the spray gun use and this at comparable working speeds. Measurements of the layer thicknesses show that, with the spray can according to the invention, higher layer thicknesses can be achieved in the same time unit compared to the spray guns.
Als Lackmaterialien wurden unterschiedliche Lackmaterialien wie Basislacke, Klarlacke, Decklacke, sowie Spritzspachtel, Korrosionsschutzmittel, Kunststoff aftvermittler u.a. einge- setzt. Die wesentlichen Vorteile der mit der erfindungsgemäßen Sprühdose anwendbaren neuen Sprühtechnik gegenüber den Spritztechniken liegen in einer Materialersparnis wegen nicht vorhandener Restmengen, nur geringem Sprühnebel, einem hohen Auftragswirkungsgrad und nicht vorhandenen Topfzeiten, in einer Kostenreduzierung wegen geringerer Energiekosten (Luftverbrauch) sowie deutlich geringeren Entsorgungskosten für Lackmaterialien sowie in der Handhabung und Zeitersparnis, da gegenüber der Spritzpistolentechnik keine Rüstzeiten erforderlich sind, keine Reinigung der Spritzpistole notwendig ist, diese ein geringeres Gewicht aufweist und außerdem fertige Lackmischungen verwendet werden können, so daß kein Mischvorgang mehr erforderlich ist. Different paint materials such as basecoats, clear coats, top coats, as well as spray fillers, anti-corrosion agents, plastic agents, etc. were used as paint materials. The main advantages of the new spray technology that can be used with the spray can according to the invention compared to the spraying techniques are material savings due to the absence of residual quantities, only low spray mist, high application efficiency and non-existent pot life, cost reduction due to lower energy costs (air consumption) and significantly lower disposal costs for paint materials as well as in handling and time saving, since no set-up times are required compared to the spray gun technology, no cleaning of the spray gun is necessary, this has a lower weight and, in addition, finished paint mixtures can be used, so that a mixing process is no longer necessary.

Claims

Patentansprüche : Claims:
1. Sprühdose, insbesondere für Lacke und Lackiervorberei- tungsmaterialien - beide nachfolgend kurz "Lackmaterial" genannt -, wobei die Sprühdose mit Treibmittel, insbesondere Treibgas, unter Druck gesetzt wird, wodurch das Lackmaterial bei Öffnen eines Ventils versprüht werden kann, dadurch gekennzeichnet, daß das Treibmittel in der Sprühdose einen Druck von 4,5 bis 6 bar erzeugt, daß die Ausbringmenge des Lackmaterial bei ununterbrochener Ausbringung 15 g bis 35 g pro 10 Sekunden beträgt und daß die Ausbringung in Form einer Breitstrahlzerstäubung erfolgt.1. Spray can, in particular for paints and paint preparation materials - both hereinafter referred to briefly as "paint material" -, the spray can being pressurized with propellant, in particular propellant gas, whereby the paint material can be sprayed when a valve is opened, characterized in that the propellant in the spray can generates a pressure of 4.5 to 6 bar, that the application amount of the paint material is 15 g to 35 g per 10 seconds with continuous application and that the application takes place in the form of a wide jet atomization.
2. Sprühdose nach Anspruch 1, dadurch gekennzeichnet, daß der Druck in der Sprühdose 5,0 bis 5,5 bar beträgt.2. Spray can according to claim 1, characterized in that the pressure in the spray can is 5.0 to 5.5 bar.
3. Sprühdose nach Anspruch 1 oder 2, dadurch gekennzeichnet, daß der Druck in der Sprühdose 5,2 bar beträgt.3. Spray can according to claim 1 or 2, characterized in that the pressure in the spray can is 5.2 bar.
4. Sprühdose nach Anspruch 1, wobei das Treibmittel ein Treibgas ist, das im wesentlichen besteht aus einem Propan/Butan-Gemisch mit einem Druck von etwa 4,2 bar bei 20°C, dadurch gekennzeichnet, daß dem Propan/Butan-Gemisch ein zusätzlicher Anteil Propan bis zu einer Menge beigemischt ist, bei der der Druck in der Sprühdose den gewünschten Wert erreicht.4. Spray can according to claim 1, wherein the propellant is a propellant gas which consists essentially of a propane / butane mixture at a pressure of about 4.2 bar at 20 ° C, characterized in that the propane / butane mixture Additional proportion of propane is added up to an amount at which the pressure in the spray can reaches the desired value.
5. Sprühdose nach Anspruch 3 oder 4, dadurch gekennzeichnet, daß das Treibgasgemisch zu 72% aus dem Propan/Butan-Gemisch mit einem Druck von 4,2 bar (bei 20°C) und zu 28% aus Propan mit einem Druck von 9,1 bar besteht, so daß sich ein Druck in der Sprühdose von ca. 5,2 bar ergibt. 5. Spray can according to claim 3 or 4, characterized in that the propellant mixture to 72% from the propane / butane mixture at a pressure of 4.2 bar (at 20 ° C) and 28% from propane at a pressure of 9 , 1 bar, so that there is a pressure in the spray can of about 5.2 bar.
6. Sprühdose nach Anspruch 1, dadurch gekennzeichnet, daß die Ausbringmenge des Lackmaterials bei ununterbrochener Ausbringung 18 g bis 28 g pro 10 Sekunden beträgt.6. Spray can according to claim 1, characterized in that the application rate of the coating material is 18 g to 28 g per 10 seconds with continuous application.
7. Sprühdose nach Anspruch 1 oder 6, dadurch gekennzeichnet, daß die Ausbringmenge des Lackmaterials bei ununterbrochener Ausbringung 20 g bis 24 g pro 10 Sekunden beträgt.7. Spray can according to claim 1 or 6, characterized in that the application rate of the coating material is 20 g to 24 g per 10 seconds with continuous application.
8. Sprühdose nach Anspruch 1, dadurch gekennzeichnet, daß die Ausbringung in Form einer Breitstrahlzerstäubung mittels einer Niederdruck-Breitstrahldüse erfolgt. 8. Spray can according to claim 1, characterized in that the application is in the form of a wide jet atomization by means of a low pressure wide jet nozzle.
EP97941980A 1996-09-06 1997-09-05 Spraying can Expired - Lifetime EP0925236B1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE19636221 1996-09-06
DE19636221A DE19636221C2 (en) 1996-09-06 1996-09-06 Spray can
PCT/EP1997/004818 WO1998009887A1 (en) 1996-09-06 1997-09-05 Spraying can

Publications (2)

Publication Number Publication Date
EP0925236A1 true EP0925236A1 (en) 1999-06-30
EP0925236B1 EP0925236B1 (en) 2003-01-15

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Family Applications (1)

Application Number Title Priority Date Filing Date
EP97941980A Expired - Lifetime EP0925236B1 (en) 1996-09-06 1997-09-05 Spraying can

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US (1) US5957341A (en)
EP (1) EP0925236B1 (en)
AT (1) ATE231094T1 (en)
AU (1) AU738425B2 (en)
CA (1) CA2264696C (en)
CZ (1) CZ296725B6 (en)
DE (3) DE19636221C2 (en)
ES (1) ES2191196T3 (en)
NO (1) NO320865B1 (en)
PL (1) PL332142A1 (en)
TR (1) TR199900502T2 (en)
WO (1) WO1998009887A1 (en)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19636221C2 (en) * 1996-09-06 1999-02-04 Peter Kwasny Gmbh Spray can
DE10005332A1 (en) 2000-02-08 2001-08-16 Peter Kwasny Gmbh Aerosol preparation for two-component paint spray cans
DE10144133A1 (en) * 2001-09-07 2003-03-27 Peter Kwasny Gmbh Two-component paint-spray can, especially e.g. for repairing cars, contains a curable epoxy resin stock component, solvent and propellant gas, with a hardener in a separate, externally-activated tube inside the can
US20050023368A1 (en) * 2003-01-24 2005-02-03 S.C. Johnson & Son, Inc. Method of designing improved spray dispenser assemblies
US6824079B2 (en) * 2003-01-24 2004-11-30 S. C. Johnson & Son, Inc. Aerosol dispenser assembly and method of reducing the particle size of a dispensed product
CA2546478C (en) 2003-11-17 2012-03-27 Peter Kwasny Gmbh Aerosol can
US20090020071A1 (en) * 2007-07-16 2009-01-22 Ike Banoun Spray can that sprays chrome-like coating

Family Cites Families (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2082033A5 (en) * 1969-12-31 1971-12-10 Oreal
US4001391A (en) * 1969-04-18 1977-01-04 Plough, Inc. Means for depositing aerosol sprays in buttery form
US3819119A (en) * 1972-01-26 1974-06-25 Paint Co H Sprayer for decorating surfaces
US3915390A (en) * 1972-10-08 1975-10-28 Green Edward Aerosol valve and sprayhead
DE2649997A1 (en) * 1976-10-30 1978-05-03 Agefko Kohlensaeure Ind Fine spraying aerosol with non-return valve - has discharge tube with spraying valve directly connected to compressed gas
FR2401074A1 (en) * 1977-08-23 1979-03-23 Bisseuil Et Huet Ets Aerosol container for paints and varnishes - using nitrogen peroxide or carbon di:oxide as the propulsive gas
DE2819635C2 (en) * 1978-05-05 1983-09-08 Kurt Vogelsang Gmbh, 6954 Hassmersheim Propellant for spray paint cans
US4278188A (en) * 1979-10-01 1981-07-14 George M. Stephenson Remote delivery nozzle assembly for pressurized container
DE3029704A1 (en) * 1980-08-06 1982-03-11 Alfred 6000 Frankfurt Pröll Refillable paint etc. spraying can - has screw top with dispensing, air compression and pressure relief valves
US4401271A (en) * 1981-07-10 1983-08-30 Minnesota Mining And Manufacturing Company Aerosal fan spray head
DE3808405C1 (en) * 1988-03-14 1989-08-24 Spray-Color Gmbh, 5160 Dueren, De
EP0521060B1 (en) * 1990-03-23 1996-06-05 HUBACEK, Hugo, Prof. Dr. Pressurized gas packaging, in particular mechanical atomizer
US5314097A (en) * 1990-04-23 1994-05-24 Fox Valley Systems, Inc. Long distance marking devices and related method
US5143288A (en) * 1991-02-14 1992-09-01 S. C. Johnson & Son, Inc. Compressed gas aerosol spray system with a dip tube vapor tap hole
FR2684358B1 (en) * 1991-12-02 1995-01-20 Oreal AEROSOL DEVICE FOR DELIVERING A RELATIVELY HIGH VISCOSITY COMPOSITION.
CH682654A5 (en) * 1992-05-18 1993-10-29 Birchmeier & Cie Ag Aerosol can.
DE19511771A1 (en) * 1994-03-30 1995-12-07 Prosol Spraytechnik Gmbh Water-paint aerosol, esp. for car repairs
FR2737084B1 (en) * 1995-07-24 1997-09-05 Rhone Poulenc Agrochimie COMPOSITION FOR THE PROTECTION OF PLANT PRUNING WOUNDS
DE19636221C2 (en) * 1996-09-06 1999-02-04 Peter Kwasny Gmbh Spray can

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO9809887A1 *

Also Published As

Publication number Publication date
NO320865B1 (en) 2006-02-06
DE19636221A1 (en) 1998-03-12
NO991075D0 (en) 1999-03-04
NO991075L (en) 1999-04-20
CA2264696C (en) 2004-08-03
EP0925236B1 (en) 2003-01-15
AU738425B2 (en) 2001-09-20
DE59709163D1 (en) 2003-02-20
DE19636221C2 (en) 1999-02-04
TR199900502T2 (en) 1999-07-21
DE29617635U1 (en) 1996-12-12
WO1998009887A1 (en) 1998-03-12
CZ296725B6 (en) 2006-05-17
PL332142A1 (en) 1999-08-30
US5957341A (en) 1999-09-28
AU4382397A (en) 1998-03-26
ES2191196T3 (en) 2003-09-01
ATE231094T1 (en) 2003-02-15
CA2264696A1 (en) 1998-03-12
CZ74799A3 (en) 1999-11-17

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