EP1986836A1 - Process for colouring plastics by feeding liquid colour from feed equipment, and container for liquid colour comprising at least one machine-readable memory element - Google Patents

Process for colouring plastics by feeding liquid colour from feed equipment, and container for liquid colour comprising at least one machine-readable memory element

Info

Publication number
EP1986836A1
EP1986836A1 EP07704426A EP07704426A EP1986836A1 EP 1986836 A1 EP1986836 A1 EP 1986836A1 EP 07704426 A EP07704426 A EP 07704426A EP 07704426 A EP07704426 A EP 07704426A EP 1986836 A1 EP1986836 A1 EP 1986836A1
Authority
EP
European Patent Office
Prior art keywords
container
liquid
machine
data
color
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Withdrawn
Application number
EP07704426A
Other languages
German (de)
French (fr)
Inventor
Maurice Weelen
Martin Welp
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.)
Evonik Operations GmbH
Original Assignee
Evonik Degussa GmbH
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Evonik Degussa GmbH filed Critical Evonik Degussa GmbH
Priority to EP07704426A priority Critical patent/EP1986836A1/en
Publication of EP1986836A1 publication Critical patent/EP1986836A1/en
Withdrawn legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
    • B29C45/17—Component parts, details or accessories; Auxiliary operations
    • B29C45/18—Feeding the material into the injection moulding apparatus, i.e. feeding the non-plastified material into the injection unit
    • B29C45/1816—Feeding auxiliary material, e.g. colouring material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
    • B29C45/16—Making multilayered or multicoloured articles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F33/00—Other mixers; Mixing plants; Combinations of mixers
    • B01F33/80—Mixing plants; Combinations of mixers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F33/00—Other mixers; Mixing plants; Combinations of mixers
    • B01F33/80—Mixing plants; Combinations of mixers
    • B01F33/84—Mixing plants with mixing receptacles receiving material dispensed from several component receptacles, e.g. paint tins
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F33/00—Other mixers; Mixing plants; Combinations of mixers
    • B01F33/80—Mixing plants; Combinations of mixers
    • B01F33/84—Mixing plants with mixing receptacles receiving material dispensed from several component receptacles, e.g. paint tins
    • B01F33/844—Mixing plants with mixing receptacles receiving material dispensed from several component receptacles, e.g. paint tins with means for customizing the mixture on the point of sale, e.g. by sensing, receiving or analysing information about the characteristics of the mixture to be made
    • B01F33/8442—Mixing plants with mixing receptacles receiving material dispensed from several component receptacles, e.g. paint tins with means for customizing the mixture on the point of sale, e.g. by sensing, receiving or analysing information about the characteristics of the mixture to be made using a computer for controlling information and converting it in a formula and a set of operation instructions, e.g. on the point of sale
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F33/00—Other mixers; Mixing plants; Combinations of mixers
    • B01F33/80—Mixing plants; Combinations of mixers
    • B01F33/84—Mixing plants with mixing receptacles receiving material dispensed from several component receptacles, e.g. paint tins
    • B01F33/848—Mixing plants with mixing receptacles receiving material dispensed from several component receptacles, e.g. paint tins using data, i.e. barcodes, 3D codes or similar type of tagging information, as instruction or identification codes for controlling the dispensing and mixing operations
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F35/00—Accessories for mixers; Auxiliary operations or auxiliary devices; Parts or details of general application
    • B01F35/20—Measuring; Control or regulation
    • B01F35/21—Measuring
    • B01F35/2131—Colour or luminescence
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F35/00—Accessories for mixers; Auxiliary operations or auxiliary devices; Parts or details of general application
    • B01F35/20—Measuring; Control or regulation
    • B01F35/22—Control or regulation
    • B01F35/2201—Control or regulation characterised by the type of control technique used
    • B01F35/2209—Controlling the mixing process as a whole, i.e. involving a complete monitoring and controlling of the mixing process during the whole mixing cycle
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
    • B29C45/17—Component parts, details or accessories; Auxiliary operations
    • B29C45/76—Measuring, controlling or regulating
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/25—Component parts, details or accessories; Auxiliary operations
    • B29C48/92—Measuring, controlling or regulating
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B44—DECORATIVE ARTS
    • B44D—PAINTING OR ARTISTIC DRAWING, NOT OTHERWISE PROVIDED FOR; PRESERVING PAINTINGS; SURFACE TREATMENT TO OBTAIN SPECIAL ARTISTIC SURFACE EFFECTS OR FINISHES
    • B44D3/00—Accessories or implements for use in connection with painting or artistic drawing, not otherwise provided for; Methods or devices for colour determination, selection, or synthesis, e.g. use of colour tables
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B44—DECORATIVE ARTS
    • B44D—PAINTING OR ARTISTIC DRAWING, NOT OTHERWISE PROVIDED FOR; PRESERVING PAINTINGS; SURFACE TREATMENT TO OBTAIN SPECIAL ARTISTIC SURFACE EFFECTS OR FINISHES
    • B44D3/00—Accessories or implements for use in connection with painting or artistic drawing, not otherwise provided for; Methods or devices for colour determination, selection, or synthesis, e.g. use of colour tables
    • B44D3/12—Paint cans; Brush holders; Containers for storing residual paint
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C2945/00—Indexing scheme relating to injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould
    • B29C2945/76—Measuring, controlling or regulating
    • B29C2945/76494—Controlled parameter
    • B29C2945/76545—Flow rate
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C2945/00—Indexing scheme relating to injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould
    • B29C2945/76—Measuring, controlling or regulating
    • B29C2945/76655—Location of control
    • B29C2945/76792—Auxiliary devices
    • B29C2945/76809—Auxiliary devices raw material feeding devices
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C2945/00—Indexing scheme relating to injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould
    • B29C2945/76—Measuring, controlling or regulating
    • B29C2945/76822—Phase or stage of control
    • B29C2945/76829—Feeding
    • B29C2945/76832—Feeding raw materials
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C2948/00—Indexing scheme relating to extrusion moulding
    • B29C2948/92—Measuring, controlling or regulating
    • B29C2948/92504—Controlled parameter
    • B29C2948/9258—Velocity
    • B29C2948/926—Flow or feed rate
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C2948/00—Indexing scheme relating to extrusion moulding
    • B29C2948/92—Measuring, controlling or regulating
    • B29C2948/92819—Location or phase of control
    • B29C2948/92828—Raw material handling or dosing, e.g. active hopper or feeding device
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C2948/00—Indexing scheme relating to extrusion moulding
    • B29C2948/92—Measuring, controlling or regulating
    • B29C2948/92819—Location or phase of control
    • B29C2948/92857—Extrusion unit
    • B29C2948/92866—Inlet shaft or slot, e.g. passive hopper; Injector, e.g. injector nozzle on barrel
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/03—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the shape of the extruded material at extrusion
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/25—Component parts, details or accessories; Auxiliary operations
    • B29C48/285—Feeding the extrusion material to the extruder
    • B29C48/288—Feeding the extrusion material to the extruder in solid form, e.g. powder or granules
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/25—Component parts, details or accessories; Auxiliary operations
    • B29C48/285—Feeding the extrusion material to the extruder
    • B29C48/29—Feeding the extrusion material to the extruder in liquid form
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
    • B29K2105/00—Condition, form or state of moulded material or of the material to be shaped
    • B29K2105/0005—Condition, form or state of moulded material or of the material to be shaped containing compounding ingredients

Definitions

  • the invention relates to a process for coloring plastics in a continuously operated extruder or an intermittently operating injection molding machine and a container suitable for the process liquid paint, with which a uniform and reproducible coloration of plastics can be achieved even with a not exactly standardized liquid color.
  • liquid paints with standardized properties are usually used and the liquid paints are dosed with a constant weight or volume to produce a particular coloring.
  • the standardization of the properties of a liquid color requires additional processing steps and is especially difficult for liquid colors, which are dosed both by weight and by volume and for which therefore both the color strength and the density of the liquid color must be standardized.
  • DE 197 28 733 A1 discloses a method in which liquid dye is metered into the conveying path of the spray material to form cavities in an injection molding machine that operates intermittently. In this case, predetermined quantities of liquid color are metered.
  • DE 35 05 036 A1 discloses a method for the controlled addition of color concentrates to a screw machine in which the color intensity of the colored mixture is measured with a spectrometer mounted on the screw machine and the measurement signal controls the addition of solid color concentrates to the screw machine.
  • the process achieves consistent coloration with variations in the color strength of the color concentrates, but requires equipment of the machine with an expensive spectrometer.
  • EP 131 414 describes a method for the production of color mixtures in which a metering device doses dye from a container which comprises a storage element in which information on color properties of the dye is stored. In the method, the metering device responds to information stored in the storage element to dose an amount of dye required to achieve the predetermined color.
  • EP 131 414 contains no indication of a coloring of plastics. There continues to be a need for a process for coloring plastics with liquid paint which reliably achieves a consistent and reproducible dyeing result even with a non-standard liquid paint.
  • Substance properties of the liquid paint contained in the container are stored, the metering device used reads from the memory element of such a container data on material properties of the liquid color and adjusts the amount of metered liquid color with the data read or controls.
  • the invention relates to a process for coloring plastics by dosing liquid paint from a metering device for liquid paint, which is connected to at least one container for liquid paint, in a continuously operated extruder or an intermittently operating injection molding machine, which is characterized in that at least one container is used, which comprises at least one machine-readable storage element, are stored in the data on material properties of liquid contained in the container and the metering device reads from the machine-readable storage element of the container at least a portion of the data to material properties of liquid contained in the container and the read data Set or control amount of dosed liquid color.
  • the invention furthermore relates to a container for liquid paint, comprising at least one machine-readable storage element, in which data on material properties of the liquid color contained in the container are stored, wherein data on the density of the liquid color are stored in the machine-readable storage element.
  • a container for liquid paint which comprises at least one machine-readable storage element.
  • Machine readable in the sense of the invention are memory elements from which a data processing system can read data directly.
  • Barcode imprints are an example of machine-readable storage elements from which a data processing system can directly optically read data while
  • Text imprints are not machine-readable storage elements in the sense of the invention, since the data contained in the text can not be read out directly by machine.
  • the machine-readable storage elements used are barcodes, magnetic strips, electrically contacted storage elements, or radio-frequency readable storage elements.
  • machine-readable storage elements only readable storage elements, such as bar codes or ROM memory modules can be used.
  • writable memory elements such as magnetic stripe or EEPROM memory devices.
  • radio frequency readable storage elements are used which are known to those skilled in the art as RFID tags.
  • the container for liquid paint is designed so that the machine-readable storage element in the connection of the container with a Dosing device for the liquid color is aligned in a predetermined orientation to the metering device so that the metering device can read data from the storage element.
  • Substance properties of the liquid color contained in the container stored.
  • data on one or more of hue, chroma, brightness, chroma, opacity, transparency, and density of the liquid color are stored in the storage element.
  • the data on hue, brightness and color saturation are preferably stored in the form of the parameters L, a and b or the parameters L, C ab and h ab of the CIELAB system or the corresponding parameters X, Y and Z.
  • the machine-readable storage element may store further data on the liquid color contained in the container, such as the weight of the liquid color contained in the container, or one or more product identification numbers.
  • Container for liquid paint connected to a metering device for liquid paint. From the metering device, the data on the properties of the liquid color contained in the container are read in whole or in part from the machine-readable storage element and set or controlled with this data, the amount of metered liquid color.
  • the reading of the data can be effected by the user of the metering device, for example, by the user with a barcode reader reads the data from a barcode attached to the container and of the
  • Barcode reader transfers to the metering device.
  • the reading of the data is carried out automatically when connecting the container with the Metering device, for example via a coupling between the container and the metering device, via which the storage element is electrically contacted, or via an integrated into the metering device reader for RFID tags.
  • the metering device automatically reads data from the machine-readable storage element of the container newly connected to the metering device.
  • dosing devices are used for the method according to the invention, in which the metering of the liquid color takes place continuously or intermittently with constant flow rates.
  • the metering device reads from the storage element of the container data on the density of the
  • Container liquid containing color and sets with the read data a volumetric dosing of the liquid color or controls this.
  • This embodiment allows a consistent and reproducible coloration with liquid colors that are standardized to a constant weight color strength and have no exactly standardized density.
  • Particularly preferred in this embodiment are commercially available containers for liquid colors used, which are additionally marked with a bar code in which the density of the im
  • Container contained liquid paint is stored. This embodiment allows the use of commercially available, standardized to a constant weight color strength liquid colors, with metering devices with volumetric dosing of the liquid color.
  • the metering device reads from the machine-readable storage element data on the weight of the liquid color contained in the container and monitors with the data read the remaining amount of liquid color in the container.
  • the metering device reads from the machine-readable storage element data on the weight of the liquid color contained in the container and monitors with the data read the remaining amount of liquid color in the container.
  • the metering device is connected to at least two containers for liquid paint and mixes at least two liquid colors with one another.
  • Each of the containers connected to the metering device has a machine-readable storage element in which data on the hue of the liquid paint contained in the container are stored, and the metering device adjusts or controls the mixing ratio of the liquid colors with the read-out data.
  • a correction for the mixing ratio can be calculated in the metering device be, with the deviations of the parameters L, a and b or L, C ab and h from or the corresponding parameters X, Y and Z of the liquid color from the target value, a mixed liquid color is obtained with a consistent and reproducible coloration is achieved.
  • Liquid colors are required, which are not required for the formulation with the setpoints. Suitable methods for calculating the correction are known to those skilled in the art, for example from G. A. Klein, color physics for industrial applications, Springer. With this embodiment, it is possible to obtain a mixed liquid color from not exactly standardized liquid colors, with which a consistent and reproducible coloration is achieved. Even with standardized liquid paints can with this
  • Embodiment of the inventive method even better reproducibility of the coloring can be achieved because the remaining deviations from the setpoint in the dosage even with a standardization can still compensate.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • General Engineering & Computer Science (AREA)
  • Analytical Chemistry (AREA)
  • Details Of Rigid Or Semi-Rigid Containers (AREA)
  • Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)
  • Injection Moulding Of Plastics Or The Like (AREA)
  • Paints Or Removers (AREA)
  • Processes Of Treating Macromolecular Substances (AREA)

Abstract

Plastics are coloured by feeding liquid colour into a continuously operated extruder or an intermittent injection-moulding machine from feed equipment for liquid colour, connected to a container for liquid colour, using a container which comprises a machine-readable memory element in which data concerning properties of the liquid colour present in the container have been stored, and where the feed equipment reads off, from the machine-readable memory element of the container, data concerning properties of the liquid colour present in the container, and uses the data read off to control or adjust the amount of liquid colour fed.

Description

VERFAHREN ZUR EINFARBUNG VON KUNSTSTOFFEN DURCH DOSIEREN VON FLUSSIGFARBE AUS EINER DOSIEREINRICHTUNG, UND BEHÄLTER FÜR FLÜSSIGFARBE UMFASSEND MINDESTENS EIN MASCHINENLESBARES SPEICHERELEMENTMETHOD OF DYING PLASTICS BY DOSING FLUX COLOR FROM A DOSING DEVICE, AND LIQUID COLD VESSELS COMPRISING AT LEAST ONE MACHINE READABLE MEMORY ELEMENT
Die Erfindung betrifft ein Verfahren zur Einfärbung von Kunststoffen in einem kontinuierlich betriebenen Extruder oder einer intermittierend arbeitenden Spritzgießmaschine und einen für das Verfahren geeigneten Behälter für Flüssigfarbe, mit denen auch mit einer nicht genau standardisierten Flüssigfarbe eine gleichbleibende und reproduzierbare Einfärbung von Kunststoffen erzielt werden kann .The invention relates to a process for coloring plastics in a continuously operated extruder or an intermittently operating injection molding machine and a container suitable for the process liquid paint, with which a uniform and reproducible coloration of plastics can be achieved even with a not exactly standardized liquid color.
Die Zudosierung von Flüssigfarbe in einen kontinuierlich betriebenen Extruder oder eine intermittierend arbeitenden Spritzgießmaschine ermöglicht in einfacher Weise eineThe metered addition of liquid paint in a continuously operated extruder or an intermittent injection molding machine allows a simple way
Einfärbung von Kunststoffen bei deren Verarbeitung. Durch eine solche Verwendung von Flüssigfarbe lässt sich eine Lagerhaltung von eingefärbten Kunststoffen vermeiden.Coloring of plastics during their processing. Such a use of liquid paint makes it possible to avoid storage of colored plastics.
Um bei der Einfärbung mit Flüssigfarbe ein gleichbleibendes und reproduzierbares Ergebnis zu erzielen, werden üblicherweise Flüssigfarben mit standardisierten Eigenschaften verwendet und die Flüssigfarben für die Herstellung einer bestimmten Einfärbung mit jeweils konstantem Gewicht bzw. Volumen dosiert. Die Standardisierung der Eigenschaften einer Flüssigfarbe erfordert allerdings zusätzliche Bearbeitungsschritte und ist vor allem schwierig bei Flüssigfarben, die sowohl nach Gewicht als auch nach Volumen dosiert werden und für die deshalb sowohl die Farbstärke als auch die Dichte der Flüssigfarbe standardisiert werden müssen.In order to achieve a consistent and reproducible result when coloring with liquid paint, liquid paints with standardized properties are usually used and the liquid paints are dosed with a constant weight or volume to produce a particular coloring. The standardization of the properties of a liquid color, however, requires additional processing steps and is especially difficult for liquid colors, which are dosed both by weight and by volume and for which therefore both the color strength and the density of the liquid color must be standardized.
Aus WO 02/087849 ist ein Verfahren bekannt, bei dem eine oder mehrere Flüssigfarben einer kontinuierlich betriebenen kunststoffverarbeitenden Maschine zugeführt werden und bei dem die Dosierung der Flüssigfarbe über eine Dosiereinrichtung nach fest vorgegebenen Rezepturen erfolgt .From WO 02/087849 a method is known in which one or more liquid colors of a continuously operated be supplied to plastic processing machine and in which the metering of the liquid color via a metering device according to predetermined recipes.
Aus DE 197 28 733 Al ist ein Verfahren bekannt, bei dem einer intermittierend arbeitenden Spritzgießmaschine Flüssigfarbe in den Förderweg des Spritzmaterials zu den Formhöhlungen dosiert wird. Dabei werden vorgegebene Mengen an Flüssigfarbe dosiert.DE 197 28 733 A1 discloses a method in which liquid dye is metered into the conveying path of the spray material to form cavities in an injection molding machine that operates intermittently. In this case, predetermined quantities of liquid color are metered.
Bei beiden bekannten Verfahren führen Unterschiede in den Stoffeigenschaften der Flüssigfarbe, die sich auf deren Farbstärke auswirken, unweigerlich zu Abweichungen in der Einfärbung des Kunststoffs.In both known methods, differences in the material properties of the liquid color, which have an effect on their color intensity, inevitably lead to deviations in the coloring of the plastic.
DE 35 05 036 Al offenbart ein Verfahren zur gesteuerten Zugabe von Farbkonzentraten in eine Schneckenmaschine, bei dem mit einem an der Schneckenmaschine angebrachten Spektrometer die Farbintensität der eingefärbten Mischung gemessen wird und mit dem Messsignal die Zugabe von festen Farbkonzentraten zur Schneckenmaschine gesteuert wird. Das Verfahren erzielt bei Schwankungen in der Farbstärke der Farbkonzentrate eine gleichmäßige Einfärbung, erfordert aber die Ausrüstung der Maschine mit einem teuren Spektrometer .DE 35 05 036 A1 discloses a method for the controlled addition of color concentrates to a screw machine in which the color intensity of the colored mixture is measured with a spectrometer mounted on the screw machine and the measurement signal controls the addition of solid color concentrates to the screw machine. The process achieves consistent coloration with variations in the color strength of the color concentrates, but requires equipment of the machine with an expensive spectrometer.
EP 131 414 beschreibt eine Methode zur Herstellung von Farbmischungen, bei der mit einer Dosiereinrichtung Farbstoff aus einem Behälter dosiert wird, der ein Speicherelement umfasst, in dem Informationen zu Farbeigenschaften des Farbstoffs gespeichert sind. Bei der Methode reagiert die Dosiereinrichtung auf im Speicherelement gespeicherte Informationen, um eine Menge an Farbstoff zu dosieren, die erforderlich ist, um die vorgegebene Farbe zu erzielen. EP 131 414 enthält keinen Hinweis auf eine Einfärbung von Kunststoffen. Es besteht weiterhin Bedarf nach einem Verfahren zur Einfärbung von Kunststoffen mit Flüssigfarbe, das auch mit einer nicht genau standardisierten Flüssigfarbe in zuverlässiger Weise ein gleichbleibendes und reproduzierbares Ergebnis bei der Einfärbung erzielt.EP 131 414 describes a method for the production of color mixtures in which a metering device doses dye from a container which comprises a storage element in which information on color properties of the dye is stored. In the method, the metering device responds to information stored in the storage element to dose an amount of dye required to achieve the predetermined color. EP 131 414 contains no indication of a coloring of plastics. There continues to be a need for a process for coloring plastics with liquid paint which reliably achieves a consistent and reproducible dyeing result even with a non-standard liquid paint.
Es wurde nun gefunden, dass sich diese Aufgabe lösen lässt durch ein Verfahren, bei dem Flüssigfarbe aus einem Behälter dosiert wird, der ein maschinenlesbares Speicherelement aufweist, in dem Daten zuIt has now been found that this object can be achieved by a method in which liquid ink is metered from a container having a machine-readable storage element in which data to
Stoffeigenschaften der im Behälter enthaltenen Flüssigfarbe gespeichert sind, wobei die verwendete Dosiereinrichtung aus dem Speicherelement eines solchen Behälters Daten zu Stoffeigenschaften der Flüssigfarbe ausliest und mit den ausgelesenen Daten die Menge an dosierter Flüssigfarbe einstellt oder steuert.Substance properties of the liquid paint contained in the container are stored, the metering device used reads from the memory element of such a container data on material properties of the liquid color and adjusts the amount of metered liquid color with the data read or controls.
Gegenstand der Erfindung ist ein Verfahren zur Einfärbung von Kunststoffen durch Dosieren von Flüssigfarbe aus einer Dosiereinrichtung für Flüssigfarbe, die mit mindestens einem Behälter für Flüssigfarbe verbunden ist, in einen kontinuierlich betriebenen Extruder oder eine intermittierend arbeitende Spritzgießmaschine, das dadurch gekennzeichnet ist, dass mindestens ein Behälter verwendet wird, der mindestens ein maschinenlesbares Speicherelement umfasset, in dem Daten zu Stoffeigenschaften der im Behälter enthaltenen Flüssigfarbe gespeichert sind und die Dosiereinrichtung aus dem maschinenlesbaren Speicherelement des Behälters mindestens einen Teil der Daten zu Stoffeigenschaften der im Behälter enthaltenen Flüssigfarbe ausliest und mit den ausgelesenen Daten die Menge an dosierter Flüssigfarbe einstellt oder steuert. Gegenstand der Erfindung ist weiterhin ein Behälter für Flüssigfarbe, umfassend mindestens ein maschinenlesbares Speicherelement, in dem Daten zu Stoffeigenschaften der im Behälter enthaltenen Flüssigfarbe gespeichert sind, wobei im maschinenlesbaren Speicherelement Daten zur Dichte der Flüssigfarbe gespeichert sind.The invention relates to a process for coloring plastics by dosing liquid paint from a metering device for liquid paint, which is connected to at least one container for liquid paint, in a continuously operated extruder or an intermittently operating injection molding machine, which is characterized in that at least one container is used, which comprises at least one machine-readable storage element, are stored in the data on material properties of liquid contained in the container and the metering device reads from the machine-readable storage element of the container at least a portion of the data to material properties of liquid contained in the container and the read data Set or control amount of dosed liquid color. The invention furthermore relates to a container for liquid paint, comprising at least one machine-readable storage element, in which data on material properties of the liquid color contained in the container are stored, wherein data on the density of the liquid color are stored in the machine-readable storage element.
Bei dem erfindungsgemäßen Verfahren wird ein Behälter für Flüssigfarbe verwendet, der mindestens ein maschinenlesbares Speicherelement umfasst. Maschinenlesbar im Sinne der Erfindung sind Speicherelemente, aus denen ein Datenverarbeitungssystem Daten unmittelbar auslesen kann. Barcodeaufdrucke sind ein Beispiel für maschinenlesbare Speicherelemente, aus denen ein Datenverarbeitungssystem Daten unmittelbar optisch auslesen kann, währendIn the method according to the invention, a container for liquid paint is used which comprises at least one machine-readable storage element. Machine readable in the sense of the invention are memory elements from which a data processing system can read data directly. Barcode imprints are an example of machine-readable storage elements from which a data processing system can directly optically read data while
Textaufdrucke keine maschinenlesbaren Speicherelemente im Sinne der Erfindung sind, da die in dem Text enthaltenen Daten nicht unmittelbar maschinell ausgelesen werden können .Text imprints are not machine-readable storage elements in the sense of the invention, since the data contained in the text can not be read out directly by machine.
Vorzugsweise werden als maschinenlesbare Speicherelemente Barcodes, Magnetstreifen, elektrisch kontaktierte Speicherelemente oder durch Radiofrequenz lesbare Speicherelemente verwendet. Als maschinenlesbare Speicherelemente können nur lesbare Speicherelemente, wie zum Beispiel Barcodes oder ROM-Speicherbausteine verwendet werden. Ebenso geeignet sind beschreibbare Speicherelemente, wie zum Beispiel Magnetstreifen oder EEPROM-Speicherbausteine . In einer bevorzugten Ausführungsform werden durch Radiofrequenz lesbare Speicherelemente verwendet, die dem Fachmann als RFID-Tags bekannt sind.Preferably, the machine-readable storage elements used are barcodes, magnetic strips, electrically contacted storage elements, or radio-frequency readable storage elements. As machine-readable storage elements only readable storage elements, such as bar codes or ROM memory modules can be used. Also suitable are writable memory elements, such as magnetic stripe or EEPROM memory devices. In a preferred embodiment, radio frequency readable storage elements are used which are known to those skilled in the art as RFID tags.
In einer Ausführungsform der Erfindung wird der Behälter für Flüssigfarbe so ausgeführt, dass das maschinenlesbare Speicherelement bei der Verbindung des Behälters mit einer Dosiereinrichtung für die Flüssigfarbe in einer vorbestimmten Orientierung zu der Dosiereinrichtung so ausgerichtet wird, dass die Dosiereinrichtung aus dem Speicherelement Daten auslesen kann.In one embodiment of the invention, the container for liquid paint is designed so that the machine-readable storage element in the connection of the container with a Dosing device for the liquid color is aligned in a predetermined orientation to the metering device so that the metering device can read data from the storage element.
In dem maschinenlesbaren Speicherelement sind Daten zuIn the machine-readable storage element, data is too
Stoffeigenschaften der im Behälter enthaltenen Flüssigfarbe gespeichert. Vorzugsweise sind in dem Speicherelement Daten zu einer oder mehreren der Eigenschaften Farbton, Farbstärke, Helligkeit, Farbsättigung, Deckvermögen, Transparenz und Dichte der Flüssigfarbe gespeichert. Die Daten zu Farbton, Helligkeit und Farbsättigung werden vorzugsweise in Form der Parameter L, a und b oder der Parameter L, Cab und hab des CIELAB-Systems oder der dazu korrespondierenden Parameter X, Y und Z gespeichert.Substance properties of the liquid color contained in the container stored. Preferably, data on one or more of hue, chroma, brightness, chroma, opacity, transparency, and density of the liquid color are stored in the storage element. The data on hue, brightness and color saturation are preferably stored in the form of the parameters L, a and b or the parameters L, C ab and h ab of the CIELAB system or the corresponding parameters X, Y and Z.
Zusätzlich können in dem maschinenlesbaren Speicherelement weitere Daten zu der im Behälter enthaltenen Flüssigfarbe gespeichert sein, wie zum Beispiel das Gewicht der im Behälter enthaltenen Flüssigfarbe oder ein oder mehrere Produktidentifikationsnummern .In addition, the machine-readable storage element may store further data on the liquid color contained in the container, such as the weight of the liquid color contained in the container, or one or more product identification numbers.
Bei dem erfindungsgemäßen Verfahren wird mindestens einIn the method according to the invention is at least one
Behälter für Flüssigfarbe mit einer Dosiereinrichtung für Flüssigfarbe verbunden. Von der Dosiereinrichtung werden aus dem maschinenlesbaren Speicherelement die Daten zu Eigenschaften der im Behälter enthaltenen Flüssigfarbe ganz oder teilweise ausgelesen und mit diesen Daten die Menge an dosierter Flüssigfarbe eingestellt oder gesteuert.Container for liquid paint connected to a metering device for liquid paint. From the metering device, the data on the properties of the liquid color contained in the container are read in whole or in part from the machine-readable storage element and set or controlled with this data, the amount of metered liquid color.
Das Auslesen der Daten kann dabei durch den Benutzer der Dosiereinrichtung bewirkt werden, beispielsweise indem der Benutzer mit einem Barcode-Lesegerät die Daten aus einem an dem Behälter angebracht Barcode ausliest und von demThe reading of the data can be effected by the user of the metering device, for example, by the user with a barcode reader reads the data from a barcode attached to the container and of the
Barcode-Lesegerät auf die Dosiereinrichtung überträgt.Barcode reader transfers to the metering device.
In einer anderen Ausführungsform erfolgt das Auslesen der Daten automatisch beim Verbinden des Behälters mit der Dosiereinrichtung, beispielsweise über eine Kupplung zwischen dem Behälter und der Dosiereinrichtung, über die das Speicherelement elektrisch kontaktiert wird, oder über ein in die Dosiereinrichtung integriertes Lesegerät für RFID-Tags. Vorzugsweise liest die Dosiereinrichtung bei einem Wechsel eines Behälters für Flüssigfarbe automatisch Daten aus dem maschinenlesbaren Speicherelement des neu mit der Dosiereinrichtung verbundenen Behälters aus.In another embodiment, the reading of the data is carried out automatically when connecting the container with the Metering device, for example via a coupling between the container and the metering device, via which the storage element is electrically contacted, or via an integrated into the metering device reader for RFID tags. Preferably, when changing a container for liquid paint, the metering device automatically reads data from the machine-readable storage element of the container newly connected to the metering device.
Vorzugsweise werden für das erfindungsgemäße Verfahren Dosiereinrichtungen verwendet, die bei denen die Dosierung der Flüssigfarbe kontinuierlich oder intermittierend mit konstanten Flussraten erfolgt.Preferably, dosing devices are used for the method according to the invention, in which the metering of the liquid color takes place continuously or intermittently with constant flow rates.
In einer bevorzugten Ausführungsform des erfindungsgemäßen Verfahrens liest die Dosiereinrichtung aus dem Speicherelement des Behälters Daten zur Dichte der imIn a preferred embodiment of the method according to the invention, the metering device reads from the storage element of the container data on the density of the
Behälter enthaltenen Flüssigfarbe aus und stellt mit den ausgelesenen Daten eine volumetrische Dosierung der Flüssigfarbe ein oder steuert diese. Diese Ausführungsform ermöglicht eine gleichbleibende und reproduzierbare Einfärbung mit Flüssigfarben, die auf eine gewichtsbezogen konstante Farbstärke standardisiert sind und keine genau standardisierte Dichte aufweisen. Besonders bevorzugt werden bei dieser Ausführungsform handelsübliche Behälter für Flüssigfarben verwendet, die zusätzlich mit einem Barcode gekennzeichnet sind, in dem die Dichte der imContainer liquid containing color and sets with the read data a volumetric dosing of the liquid color or controls this. This embodiment allows a consistent and reproducible coloration with liquid colors that are standardized to a constant weight color strength and have no exactly standardized density. Particularly preferred in this embodiment are commercially available containers for liquid colors used, which are additionally marked with a bar code in which the density of the im
Behälter enthaltenen Flüssigfarbe gespeichert ist. Diese Ausführungsform ermöglicht die Verwendung von handelsüblichen, auf eine gewichtsbezogen konstante Farbstärke standardisierten Flüssigfarben, mit Dosiereinrichtungen mit volumetrischer Dosierung der Flüssigfarbe .Container contained liquid paint is stored. This embodiment allows the use of commercially available, standardized to a constant weight color strength liquid colors, with metering devices with volumetric dosing of the liquid color.
In einer weiteren bevorzugten Ausführungsform des erfindungsgemäßen Verfahrens liest die Dosiereinrichtung aus dem maschinenlesbaren Speicherelement Daten zum Gewicht der im Behälter enthaltenen Flüssigfarbe aus und überwacht mit den ausgelesenen Daten die Restmenge an Flüssigfarbe im Behälter. Mit dieser Ausführungsform lässt sich auch bei der Verwendung von Behältern mit unterschiedlichem Füllgewicht zuverlässig vermeiden, dass die Farbdosierung bei entleertem Behälter unbeabsichtigt ausbleibt. Bei Verwendung von beschreibbaren Speicherelementen ist es außerdem möglich, die im Behälter verbliebene Restmenge an Flüssigfarbe in dem Speicherelement zu speichern. Damit wird es möglich, nur noch teilweise befüllte Behälter auszuwechseln und auch beim Verbinden der Dosiereinrichtung mit einem nur noch teilweise befüllten Behälter die im Behälter verbliebene Restmenge zu überwachen und ein Leerlaufen des Behälters während der Dosierung zu verhindern .In a further preferred embodiment of the method according to the invention, the metering device reads from the machine-readable storage element data on the weight of the liquid color contained in the container and monitors with the data read the remaining amount of liquid color in the container. With this embodiment, it is also possible, when using containers with different filling weights, to reliably avoid the ink dosage from being inadvertently missed when the container is empty. When using writable memory elements, it is also possible to store the residual amount of liquid paint left in the container in the storage element. This makes it possible to replace only partially filled containers and to monitor the connection of the metering device with a only partially filled container remaining in the container residual amount and to prevent emptying of the container during dosing.
In einer weiteren bevorzugten Ausführungsform des erfindungsgemäßen Verfahrens ist die Dosiereinrichtung mit mindestens zwei Behältern für Flüssigfarbe verbunden und mischt mindestens zwei Flüssigfarben miteinander. Jeder der mit der Dosiereinrichtung verbundenen Behälter weist ein maschinenlesbares Speicherelement auf, in dem Daten zum Farbton der in dem Behältern enthaltenen Flüssigfarbe gespeichert sind und die Dosiereinrichtung stellt mit den ausgelesenen Daten das Mischungsverhältnis der Flüssigfarben ein oder steuert dieses.In a further preferred embodiment of the method according to the invention, the metering device is connected to at least two containers for liquid paint and mixes at least two liquid colors with one another. Each of the containers connected to the metering device has a machine-readable storage element in which data on the hue of the liquid paint contained in the container are stored, and the metering device adjusts or controls the mixing ratio of the liquid colors with the read-out data.
Vorzugsweise sind im Speicherelement zusätzlich zum Farbton noch Daten zu Helligkeit und Farbsättigung in Form der Parameter L, a und b oder der Parameter L, Cab und hab des CIELAB-Systems oder der dazu korrespondierenden Parameter X, Y und Z gespeichert. Mit den ausgelesenen Daten und mit in der Dosiereinrichtung hinterlegten Sollwerten für die Parameter L, a und b bzw. L, Cab und hab oder der dazu korrespondierenden Parameter X, Y und Z der Flüssigfarbe kann in der Dosiereinrichtung eine Korrektur für das Mischungsverhältnis berechnet werden, mit der auch bei Abweichungen der Parameter L, a und b bzw. L, Cab und hab oder der dazu korrespondierenden Parameter X, Y und Z der Flüssigfarbe vom Sollwert eine gemischte Flüssigfarbe erhalten wird, mit der eine gleichbleibende und reproduzierbare Einfärbung erzielt wird. Für die Korrektur kann gegebenenfalls auch die Dosierung von weiterenIn addition to the hue, data on brightness and color saturation in the form of the parameters L, a and b or the parameters L, C ab and h ab of the CIELAB system or the corresponding parameters X, Y and Z are preferably stored in the memory element. With the read-out data and with reference values stored in the metering device for the parameters L, a and b or L, C ab and h ab or the corresponding parameters X, Y and Z of the liquid color, a correction for the mixing ratio can be calculated in the metering device be, with the deviations of the parameters L, a and b or L, C ab and h from or the corresponding parameters X, Y and Z of the liquid color from the target value, a mixed liquid color is obtained with a consistent and reproducible coloration is achieved. For the correction, if necessary, the dosage of further
Flüssigfarben erforderlich werden, die für die Rezeptur mit den Sollwerten nicht erforderlich sind. Geeignete Verfahren zur Berechnung der Korrektur sind dem Fachmann beispielsweise aus G. A. Klein, Farbenphysik für industrielle Anwendungen, Verlag Springer bekannt. Mit dieser Ausführungsform ist es möglich, auch aus nicht genau standardisierten Flüssigfarben eine gemischte Flüssigfarbe zu erhalten, mit der eine gleichbleibende und reproduzierbare Einfärbung erzielt wird. Selbst bei standardisierten Flüssigfarben kann mit dieserLiquid colors are required, which are not required for the formulation with the setpoints. Suitable methods for calculating the correction are known to those skilled in the art, for example from G. A. Klein, color physics for industrial applications, Springer. With this embodiment, it is possible to obtain a mixed liquid color from not exactly standardized liquid colors, with which a consistent and reproducible coloration is achieved. Even with standardized liquid paints can with this
Ausführungsform des erfindungsgemäßen Verfahrens noch eine bessere Reproduzierbarkeit der Einfärbung erzielt werden, da sich die auch bei einer Standardisierung verbleibenden Abweichungen vom Sollwert bei der Dosierung noch ausgleichen lassen.Embodiment of the inventive method even better reproducibility of the coloring can be achieved because the remaining deviations from the setpoint in the dosage even with a standardization can still compensate.
Mit dem erfindungsgemäßen Verfahren kann auch mit nicht genau standardisierten Flüssigfarben eine gleichbleibende und reproduzierbare Einfärbung von flüssigen, pastösen, pulverförmigen oder granulatförmigen Zubereitungen erreicht werden. With the method according to the invention, uniform and reproducible coloring of liquid, pasty, powdery or granular preparations can be achieved even with not exactly standardized liquid colors.

Claims

Patentansprüche claims
1. Verfahren zur Einfärbung von Kunstoffen durch Dosieren von Flüssigfarbe aus einer Dosiereinrichtung für Flüssigfarbe, die mit mindestens einem Behälter für Flüssigfarbe verbunden ist, in einen kontinuierlich betriebenen Extruder oder eine intermittierend arbeitende Spritzgießmaschine dadurch gekennzeichnet, dass mindestens ein Behälter verwendet wird, der mindestens ein maschinenlesbares Speicherelement umfasst, in dem Daten zu Stoffeigenschaften der im Behälter enthaltenen Flüssigfarbe gespeichert sind und die Dosiereinrichtung aus dem maschinenlesbaren Speicherelement des Behälters mindestens einen Teil der Daten zu Stoffeigenschaften der im Behälter enthaltenen Flüssigfarbe ausliest und mit den ausgelesenen Daten die Menge an dosierter Flüssigfarbe einstellt oder steuert.A process for coloring plastics by dosing liquid paint from a liquid paint dispenser connected to at least one liquid paint container into a continuous extruder or an intermittent injection molding machine characterized in that at least one container is used comprising at least one includes machine-readable storage element, are stored in the data on material properties of liquid contained in the container and the metering from the machine-readable storage element of the container at least a part of the data to substance properties of the liquid contained in the container reads and sets the amount of metered liquid color with the data read or controls.
2. Verfahren nach Anspruch 1, dadurch gekennzeichnet, dass die im maschinenlesbaren Speicherelement gespeicherten Daten ausgewählt sind aus Daten zu Farbton, Farbstärke, Helligkeit, Farbsättigung, Deckvermögen, Transparenz und Dichte der Flüssigfarbe, sowie Kombinationen davon.2. The method according to claim 1, characterized in that the data stored in the machine-readable storage element data are selected from data on hue, color intensity, brightness, color saturation, opacity, transparency and density of the liquid color, and combinations thereof.
3. Verfahren nach Anspruch 1 oder 2, dadurch gekennzeichnet, dass in dem maschinenlesbaren Speicherelement Daten zur Dichte der im Behälter enthaltenen Flüssigfarbe gespeichert sind und die Dosiereinrichtung mit den ausgelesenen Daten eine volumetrische Dosierung der Flüssigfarbe einstellt oder steuert.3. The method according to claim 1 or 2, characterized in that in the machine-readable storage element data on the density of liquid contained in the container are stored and the metering device with the data read out a volumetric dosing of Liquid color sets or controls.
4. Verfahren nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, dass in dem maschinenlesbaren Speicherelement zusätzlich Daten zum Gewicht der im Behälter enthaltenen Flüssigfarbe gespeichert sind und die Dosiereinrichtung mit den ausgelesenen Daten die Restmenge an Flüssigfarbe im Behälter überwacht.4. The method according to any one of claims 1 to 3, characterized in that in the machine-readable storage element additionally data on the weight of liquid contained in the container are stored and monitors the metering device with the read data, the residual amount of liquid color in the container.
5. Verfahren nach einem der Ansprüche 1 bis 4, dadurch gekennzeichnet, dass die Dosiereinrichtung mit mindestens zwei Behältern für Flüssigfarbe verbunden ist und mindestens zwei Flüssigfarben miteinander mischt, jeder der Behälter ein maschinenlesbares Speicherelement aufweist, in dem Daten zum Farbton der in dem Behältern enthaltenen Flüssigfarbe gespeichert sind und die Dosiereinrichtung mit den ausgelesenen Daten das Mischungsverhältnis der Flüssigfarben einstellt oder steuert.5. The method according to any one of claims 1 to 4, characterized in that the metering device is connected to at least two containers for liquid paint and at least two liquid colors mixed together, each of the container has a machine-readable storage element in the data contained in the color of the containers Liquid color are stored and adjusts the metering device with the read data, the mixing ratio of the liquid colors or controls.
6. Verfahren nach einem der Ansprüche 1 bis 5, dadurch gekennzeichnet, dass das maschinenlesbare Speicherelement ausgewählt ist aus der Gruppe von Barcodes, Magnetstreifen, elektrisch kontaktierten Speicherelementen und durch Radiofrequenz lesbaren Speicherelementen.6. The method according to any one of claims 1 to 5, characterized in that the machine-readable memory element is selected from the group of barcodes, magnetic stripe, electrically contacted memory elements and readable by radio frequency memory elements.
7. Verfahren nach einem der Ansprüche 1 bis 6, dadurch gekennzeichnet, dass die Dosiereinrichtung bei einem Wechsel eines Behälters für Flüssigfarbe automatisch Daten aus dem maschinenlesbaren Speicherelement des neu mit der Dosiereinrichtung verbundenen Behälters ausliest.7. The method according to any one of claims 1 to 6, characterized in that the metering device when changing a container for liquid paint automatically data from the machine-readable storage element of the newly with the Read metering device connected container.
8. Behälter für Flüssigfarbe zur Einfärbung von Kunstoffen, umfassend mindestens ein maschinenlesbares Speicherelement, in dem Daten zu Stoffeigenschaften der im Behälter enthaltenen Flüssigfarbe gespeichert sind, dadurch gekennzeichnet, dass im maschinenlesbaren Speicherelement Daten zur Dichte der Flüssigfarbe gespeichert sind.8. Container for liquid color for coloring of plastics, comprising at least one machine-readable storage element, are stored in the data on material properties of liquid contained in the container, characterized in that data are stored in the machine-readable storage element to the density of the liquid color.
9. Behälter nach Anspruch 8, dadurch gekennzeichnet, dass im maschinenlesbaren Speicherelement zusätzlich Daten zu Farbton, Farbstärke, Helligkeit, Farbsättigung, Deckvermögen und Transparenz der Flüssigfarbe, sowie Kombinationen davon, gespeichert sind.9. A container according to claim 8, characterized in that in the machine-readable storage element additionally data on color, color strength, brightness, color saturation, hiding power and transparency of the liquid color, and combinations thereof are stored.
10. Behälter nach Anspruch 9, dadurch gekennzeichnet, dass im maschinenlesbaren Speicherelement für die10. Container according to claim 9, characterized in that in the machine-readable storage element for the
Flüssigfarbe Parameter L, a und b oder Parameter L, Cab und hab des CIELAB-Systems oder der dazu korrespondierende Parameter X, Y und Z gespeichert sind.Liquid color parameters L, a and b or parameters L, C ab and h ab of the CIELAB system or the corresponding parameters X, Y and Z are stored.
11. Behälter nach einem der Ansprüche 8 bis 10, dadurch gekennzeichnet, dass das maschinenlesbare Speicherelement ausgewählt ist aus der Gruppe von Barcodes, Magnetstreifen, elektrisch kontaktierten Speicherelementen und durch Radiofrequenz lesbaren Speicherelementen.11. A container according to any one of claims 8 to 10, characterized in that the machine-readable storage element is selected from the group of bar codes, magnetic stripe, electrically contacted memory elements and readable by radio frequency memory elements.
12. Behälter nach einem der Ansprüche 8 bis 11, dadurch gekennzeichnet, dass in dem maschinenlesbaren Speicherelement zusätzlich Daten zum Gewicht der im Behälter enthaltenen Flüssigfarbe gespeichert sind. 12. Container according to one of claims 8 to 11, characterized in that data on the weight of the liquid color contained in the container are additionally stored in the machine-readable storage element.
EP07704426A 2006-02-21 2007-02-07 Process for colouring plastics by feeding liquid colour from feed equipment, and container for liquid colour comprising at least one machine-readable memory element Withdrawn EP1986836A1 (en)

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EP07704426A EP1986836A1 (en) 2006-02-21 2007-02-07 Process for colouring plastics by feeding liquid colour from feed equipment, and container for liquid colour comprising at least one machine-readable memory element

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EP06110230A EP1820568A1 (en) 2006-02-21 2006-02-21 Container for liquid paint comprising a machine-readable storing medium, and method for metering liquid paint
EP07704426A EP1986836A1 (en) 2006-02-21 2007-02-07 Process for colouring plastics by feeding liquid colour from feed equipment, and container for liquid colour comprising at least one machine-readable memory element
PCT/EP2007/051171 WO2007096248A1 (en) 2006-02-21 2007-02-07 Process for colouring plastics by feeding liquid colour from feed equipment, and container for liquid colour comprising at least one machine-readable memory element

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EP06110230A Withdrawn EP1820568A1 (en) 2006-02-21 2006-02-21 Container for liquid paint comprising a machine-readable storing medium, and method for metering liquid paint
EP07704426A Withdrawn EP1986836A1 (en) 2006-02-21 2007-02-07 Process for colouring plastics by feeding liquid colour from feed equipment, and container for liquid colour comprising at least one machine-readable memory element

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EP06110230A Withdrawn EP1820568A1 (en) 2006-02-21 2006-02-21 Container for liquid paint comprising a machine-readable storing medium, and method for metering liquid paint

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EP (2) EP1820568A1 (en)
KR (1) KR20080109729A (en)
CN (1) CN101389465A (en)
AU (1) AU2007217689A1 (en)
CA (1) CA2643213A1 (en)
MA (1) MA30280B1 (en)
WO (1) WO2007096248A1 (en)
ZA (1) ZA200807194B (en)

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Also Published As

Publication number Publication date
EP1820568A1 (en) 2007-08-22
AU2007217689A1 (en) 2007-08-30
KR20080109729A (en) 2008-12-17
WO2007096248A1 (en) 2007-08-30
CN101389465A (en) 2009-03-18
MA30280B1 (en) 2009-03-02
ZA200807194B (en) 2009-08-26
CA2643213A1 (en) 2007-08-30

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