DE4200841C1 - Colouring, smoothing or structuring surfaces of e.g. recycled plastic - includes plasticising and then passing through a vortex chamber contg. a conc. dye - Google Patents

Colouring, smoothing or structuring surfaces of e.g. recycled plastic - includes plasticising and then passing through a vortex chamber contg. a conc. dye

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Publication number
DE4200841C1
DE4200841C1 DE4200841A DE4200841A DE4200841C1 DE 4200841 C1 DE4200841 C1 DE 4200841C1 DE 4200841 A DE4200841 A DE 4200841A DE 4200841 A DE4200841 A DE 4200841A DE 4200841 C1 DE4200841 C1 DE 4200841C1
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Germany
Prior art keywords
plastic
smoothing
screen
calibration
dye
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Expired - Fee Related
Application number
DE4200841A
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German (de)
Inventor
Theo 6719 Hettenleidelheim De Rydmann
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Individual
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Individual
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Priority to DE4200841A priority Critical patent/DE4200841C1/en
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Publication of DE4200841C1 publication Critical patent/DE4200841C1/en
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Expired - Fee Related legal-status Critical Current

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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
    • B29C35/00—Heating, cooling or curing, e.g. crosslinking or vulcanising; Apparatus therefor
    • B29C35/02—Heating or curing, e.g. crosslinking or vulcanizing during moulding, e.g. in a mould
    • B29C35/08—Heating or curing, e.g. crosslinking or vulcanizing during moulding, e.g. in a mould by wave energy or particle radiation
    • B29C35/10—Heating or curing, e.g. crosslinking or vulcanizing during moulding, e.g. in a mould by wave energy or particle radiation for articles of indefinite length
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
    • B29B13/00—Conditioning or physical treatment of the material to be shaped
    • B29B13/02—Conditioning or physical treatment of the material to be shaped by heating
    • B29B13/023—Half-products, e.g. films, plates
    • B29B13/024—Hollow bodies, e.g. tubes or profiles
    • 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
    • B29C37/00—Component parts, details, accessories or auxiliary operations, not covered by group B29C33/00 or B29C35/00
    • B29C37/0025—Applying surface layers, e.g. coatings, decorative layers, printed layers, to articles during shaping, e.g. in-mould printing
    • 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
    • B29C48/06—Rod-shaped
    • 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
    • B29C48/07—Flat, e.g. panels
    • 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
    • B29C48/88—Thermal treatment of the stream of extruded material, e.g. cooling
    • B29C48/90—Thermal treatment of the stream of extruded material, e.g. cooling with calibration or sizing, i.e. combined with fixing or setting of the final dimensions of the extruded article
    • 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
    • B29C48/88—Thermal treatment of the stream of extruded material, e.g. cooling
    • B29C48/90—Thermal treatment of the stream of extruded material, e.g. cooling with calibration or sizing, i.e. combined with fixing or setting of the final dimensions of the extruded article
    • B29C48/908—Thermal treatment of the stream of extruded material, e.g. cooling with calibration or sizing, i.e. combined with fixing or setting of the final dimensions of the extruded article characterised by calibrator surface, e.g. structure or holes for lubrication, cooling or venting
    • 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
    • B29C48/88—Thermal treatment of the stream of extruded material, e.g. cooling
    • B29C48/911—Cooling
    • B29C48/9135—Cooling of flat articles, e.g. using specially adapted supporting means
    • B29C48/914—Cooling of flat articles, e.g. using specially adapted supporting means cooling drums
    • 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
    • B29C48/88—Thermal treatment of the stream of extruded material, e.g. cooling
    • B29C48/919—Thermal treatment of the stream of extruded material, e.g. cooling using a bath, e.g. extruding into an open bath to coagulate or cool the 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
    • B29C59/00—Surface shaping of articles, e.g. embossing; Apparatus therefor
    • B29C59/02—Surface shaping of articles, e.g. embossing; Apparatus therefor by mechanical means, e.g. pressing
    • 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
    • B29C35/00—Heating, cooling or curing, e.g. crosslinking or vulcanising; Apparatus therefor
    • B29C35/02—Heating or curing, e.g. crosslinking or vulcanizing during moulding, e.g. in a mould
    • B29C35/08—Heating or curing, e.g. crosslinking or vulcanizing during moulding, e.g. in a mould by wave energy or particle radiation
    • B29C35/0805—Heating or curing, e.g. crosslinking or vulcanizing during moulding, e.g. in a mould by wave energy or particle radiation using electromagnetic radiation
    • B29C2035/0822—Heating or curing, e.g. crosslinking or vulcanizing during moulding, e.g. in a mould by wave energy or particle radiation using electromagnetic radiation using IR radiation
    • 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
    • B29C35/00—Heating, cooling or curing, e.g. crosslinking or vulcanising; Apparatus therefor
    • B29C35/16—Cooling
    • B29C2035/1658—Cooling using gas
    • 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
    • B29C48/001—Combinations of extrusion moulding with other shaping operations
    • B29C48/0017—Combinations of extrusion moulding with other shaping operations combined with blow-moulding or thermoforming
    • 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
    • B29C48/001—Combinations of extrusion moulding with other shaping operations
    • B29C48/0018—Combinations of extrusion moulding with other shaping operations combined with shaping by orienting, stretching or shrinking, e.g. film blowing
    • 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
    • B29C48/05—Filamentary, e.g. strands
    • 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
    • B29C48/12—Articles with an irregular circumference when viewed in cross-section, e.g. window profiles
    • 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
    • B29C48/16—Articles comprising two or more components, e.g. co-extruded layers
    • B29C48/17—Articles comprising two or more components, e.g. co-extruded layers the components having different colours
    • 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
    • B29C48/88—Thermal treatment of the stream of extruded material, e.g. cooling
    • B29C48/90—Thermal treatment of the stream of extruded material, e.g. cooling with calibration or sizing, i.e. combined with fixing or setting of the final dimensions of the extruded article
    • B29C48/904—Thermal treatment of the stream of extruded material, e.g. cooling with calibration or sizing, i.e. combined with fixing or setting of the final dimensions of the extruded article using dry calibration, i.e. no quenching tank, e.g. with water spray for cooling or lubrication
    • 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
    • B29C48/88—Thermal treatment of the stream of extruded material, e.g. cooling
    • B29C48/90—Thermal treatment of the stream of extruded material, e.g. cooling with calibration or sizing, i.e. combined with fixing or setting of the final dimensions of the extruded article
    • B29C48/906—Thermal treatment of the stream of extruded material, e.g. cooling with calibration or sizing, i.e. combined with fixing or setting of the final dimensions of the extruded article using roller calibration
    • 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
    • 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
    • B29K2105/26—Scrap or recycled material
    • 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
    • B29K2995/00—Properties of moulding materials, reinforcements, fillers, preformed parts or moulds
    • B29K2995/0018—Properties of moulding materials, reinforcements, fillers, preformed parts or moulds having particular optical properties, e.g. fluorescent or phosphorescent
    • B29K2995/002—Coloured
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
    • B29L2031/00—Other particular articles
    • B29L2031/001—Profiled members, e.g. beams, sections
    • B29L2031/003—Profiled members, e.g. beams, sections having a profiled transverse cross-section

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Toxicology (AREA)
  • Oral & Maxillofacial Surgery (AREA)
  • Application Of Or Painting With Fluid Materials (AREA)

Abstract

Colouring and/or smoothing or structuring the surfaces of components made of plastic, esp. recycling plastic, includes plastifying the component and passing it through a vortex chamber contg. a concentrated dye. The component is then further heated in a radiation unit and is then smoothed or pressed in a unit contg. a calibration nozzle and/or smoothing rollers. The component is then cooled. ADVANTAGE - The process is simple and reliable and enables uniformly coloured components to be formed.

Description

Die Erfindung betrifft ein Verfahren nach dem Oberbegriff des Anspruchs 1 und eine Vorrichtung zur Durchführung des Verfahrens.The invention relates to a method according to the preamble of claim 1 and a device to carry out the procedure.

Verfahren zum Herstellen von glatten Oberflächen, insbe­ sondere bei Artikeln aus Recycling-Kunststoff, sind mehr­ fach bekannt. So wird z. B. in der DE-OS 34 41 906 A1 vorgeschlagen, eine Folie aus Polyamid oder Polyester, die eventuell auch eingefärbt sein kann, um dem betref­ fenden Gegenstand farblich das gewünschte Aussehen zu geben, in die Preßform einzulegen und aufzukaschieren. Diese Folie kann auch vorher im Tiefziehverfahren der Grundform des herzustellenden Gegenstandes angepaßt werden. Zur besseren Verbindung mit der Grundform des herzustellenden Gegenstandes können auch Schmelzkleber oder Haftvermittler, wie beispielsweise einem ionomeren Kunststoff, verwendet werden. Der Nachteil dieses Verfah­ rens ist, daß die eingebrachte Folie an gewissen Stellen beim Verpressen überdehnt wird, Falten bildet oder auch zerreißen kann. Jedwede Überdehnung der Folie ergibt Farbunterschiede im Endprodukt oder nicht bzw. schlecht eingefärbte und rauhe Stellen in der Oberfläche des fertigen Gegenstandes. Process for the production of smooth surfaces, esp especially for articles made from recycled plastic, there are more well known. So z. B. in DE-OS 34 41 906 A1 proposed a film made of polyamide or polyester, which may also be colored in order to color the object to the desired look give to insert in the mold and laminate. This film can also be thermoformed beforehand Adjusted basic shape of the object to be manufactured will. For a better connection with the basic form of the The object to be manufactured can also be melt adhesive or adhesion promoters, such as an ionomer Plastic. The disadvantage of this procedure rens is that the introduced film in certain places is overstretched during pressing, wrinkles or can also tear. Any stretching of the film results in color differences in the end product or not or badly colored and rough spots on the surface of the finished item.  

In der DE 35 35 255 A1 ist offenbart, wie die Oberfläche eines Kunststoffgegenstandes mit einem Trennmittel wie Mineralöl, Aminsalzen, Alkaliseifen etc. porenfrei ge­ staltet werden kann. Die DE 39 34 199 A1 behandelt ein Verfahren mit einem Trennmittel aus gelösten Wachsen, um Gegenstände aus Kunststoff mit einer glatten Oberflä­ che herzustellen. Alle diese bekannten Herstellungsver­ fahren bringen jedoch bei Gegenständen aus Recycling- Kunststoff nicht den gewünschten Erfolg, weil diese Gegenstände durch die vielen Fremdeinschlüsse eine rauhe, mit kleinen Vertiefungen und Blasen versehene Oberfläche haben.DE 35 35 255 A1 discloses how the surface a plastic object with a release agent such as Mineral oil, amine salts, alkali soaps etc. non-porous can be designed. DE 39 34 199 A1 deals with one Method with a release agent from dissolved waxes, around plastic objects with a smooth surface to manufacture. All of these known manufacturing ver drive but bring items from recycling Plastic does not achieve the desired success because of this Objects due to the many foreign inclusions a rough, surface with small depressions and bubbles to have.

Aufgabe der Erfindung ist es, ein Verfahren und eine Vorrichtung aufzuzeigen, die selbst bei einer rauhen, unebenen Oberfläche, wie dies bei Gegenständen aus Recycling-Kunststoff üblich ist, eine gleichmäßig einge­ färbte, glatte und mit dem betreffenden Gegenstand fest­ verbundene Oberflächenschicht wirkt. Diese Aufgabe wird durch die Maßnahmen des kennzeichnenden Teils des Anspruchs 1 in Verbindung mit den Maßnahmen des Oberbegriffes gelöst.The object of the invention is a method and Show device that even in a rough, uneven surface, as is the case with objects Recycled plastic is common, evenly inserted colored, smooth and solid with the object in question connected surface layer acts. This task is accomplished through the measures of the characteristic part of the Claim 1 solved in connection with the measures of the preamble.

Der als Profilstrang aus Kunststoff, insbesondere aus Recycling-Kunststoff hergestellte Gegenstand wird mittels eines Förderbandes zugeführt, unter einem Strahlerschirm, der allseitig auf den Gegenstand einwirkt, oder anderen intensiv einwirkenden Hitzestrahlungen hindurchgeführt. The as a profile strand made of plastic, in particular Recycled plastic is manufactured using fed to a conveyor belt, under an emitter screen, who affects the object from all sides, or others intense heat radiation passed through.  

Die auf den Gegenstand einwirkende Energie ist durch die Länge des Weges durch den Strahlerschirm und die Geschwindigkeit des Förderbandes bestimmt, mit welcher der Kunststoffgegenstand im Strahlerschirm bewegt wird, und ist so bemessen, daß lediglich eine Oberflächen­ schicht des Kunststoffgegenstandes von 2 bis 3 mm Tiefe plastifiziert wird. Unmittelbar danach wird der Gegen­ stand durch eine Wirbelkammer mit verwirbeltem Farbstoff­ konzentrat geführt. Das verwirbelte Farbkonzentrat muß allseitig auf den Gegenstand einwirken können.The energy acting on the object is through the length of the path through the lampshade and the The speed of the conveyor belt determines which one the plastic object is moved in the lampshade, and is dimensioned so that only one surface layer of the plastic object of 2 to 3 mm depth is plasticized. Immediately afterwards the opponent stood by a swirl chamber with swirled dye guided concentrate. The swirled color concentrate must can affect the object from all sides.

Das Farbkonzentrat bleibt auf der plastifizierten, kle­ brigen Oberfläche des Gegenstandes gut haften. Ein nachfolgender Strahlerschirm erwärmt die Oberfläche des Gegenstandes mit dem daran haftenden Farbkonzentrat nochmals. In der anschließenden Kalibratordüse und/oder den Glättewalzen verbindet sich die teigige Oberflächen­ schicht fest mit dem Kernteil des Kunststoffgegenstandes, welcher in einer nachfolgenden Kühlstrecke abgekühlt wird.The color concentrate remains on the plastified, kle stick to the rest of the surface of the object. A the following lampshade warms the surface of the object with the color concentrate adhering to it again. In the subsequent calibrator nozzle and / or the doughy surfaces combine with the smoothing rollers layer firmly with the core part of the plastic object, which is cooled in a subsequent cooling section.

In weiterer Ausgestaltung der Erfindung kann bei der Behandlung mit Farbkonzentrat das Prinzip der statischen Aufladung angewandt werden. Dies hat den Vorteil, daß die Farbpartikel vom Kunststoffgegenstand angezogen werden und somit die gesamte Oberfläche gleichmäßig einhüllen. Der Farbauftrag ist auf der gesamten Oberflä­ che gleichmäßig aufgetragen.In a further embodiment of the invention, the Treatment with color concentrate the principle of static Charging can be applied. This has the advantage that the paint particles attracted to the plastic object and thus the entire surface is even envelop. The paint application is on the entire surface  che evenly applied.

Bei einer Vorrichtung zur Durchführung des Verfahrens nach Anspruch 1 oder 2 kann gemäß Anspruch 3 die Zuführeinrichtung aus einem Förderband, der Strahlerschirm aus einem Infrarotstrahler, die Farbein­ richtung aus einer Wirbelkammer mit verwirbeltem Farb­ stoffkonzentrat, der nachfolgende Strahlerschirm wieder aus einem Infrarotstrahler, die Kalibriereinrichtung aus einer Kalibrierdüse, die Glättewalzen aus Profilwalzen und die Kühlstrecke aus einem Wasserbad bestehen. Selbstverständlich kann anstelle eines Wasserbades der Kunststoffgegenstand auch mit Kaltluft angeblasen oder anderweitig gekühlt werden.In a device for performing the method according to claim 1 or 2 can according to claim 3 the feed device from a conveyor belt, the Emitter screen made of an infrared emitter, the color Direction from a swirl chamber with swirled color material concentrate, the following lampshade again from an infrared heater, the calibration device from a calibration nozzle, the smoothing rollers Profile rollers and the cooling section from a water bath consist. Of course, instead of one Water bath the plastic object also with cold air blown or otherwise cooled.

Außerdem können die Infrarotstrahler von allen vier Seiten auf den Kunststoffgegenstand einwirken. Dadurch wird die Oberfläche des Kunststoffgegenstandes gleich­ mäßig erwärmt und plastifiziert.In addition, the infrared emitters can be used by all four Apply sides to the plastic object. Thereby the surface of the plastic object becomes the same moderately heated and plasticized.

Schließlich kann die Verwirbelung des Farbstoffkonzen­ trats in der Wirbelkammer mittels eines Gebläses erfol­ gen.Finally, the swirling of the dye concentrate occurred in the vortex chamber by means of a fan gene.

Anhand eines in der Zeichnung dargestellten Ausführungs­ beispieles soll die Erfindung näher erläutert werden. Based on an execution shown in the drawing example, the invention will be explained in more detail.  

Es zeigen:Show it:

Fig. 1 eine schematische Darstellung einer Vorrichtung gemäß einem Ausführungsbeispiel der Erfindung und Fig. 1 is a schematic representation of a device according to an embodiment of the invention and

Fig. 2 eine schematische Darstellung einer Anordnung der Infrarotstrahler. Fig. 2 is a schematic representation of an arrangement of the infrared radiators.

Die in den Fig. dargestellte Vorrichtung besteht aus einem Förderband 9, mit welchem der Kunststoffgegenstand (hier ein Profilstrang) 1 einem ersten Strahlerschirm 2 zugeführt wird. Der Strahlerschirm 2 besteht aus Infra­ rotstrahlern 10, welche auf den Profilstrang 1 von allen vier Seiten einwirken, wie dies die Fig. 2 zeigt. Die Geschwindigkeit der Zuführung, die Energie der Infrarot­ strahlung 10 und die Wegstrecke durch den Strahlerschirm 2 sind derart aufeinander abgestimmt, daß die Oberfläche 7 des Profilstranges 1 in einer Tiefe von etwa 2 bis 3 mm plastifiziert wird. Anschließend gelangt der Profil­ strang 1 in eine Wirbelkammer 12 mit verwirbeltem Farb­ stoffkonzentrat 15. Durch ein Gebläse 13 wird die Verwirbelung erzeugt und aufrechterhalten. Das Farbkon­ zentrat 15 bleibt an der plastifizierten, klebrigen Oberfläche 7 des Profilstranges 1 gut haften. Es kann hierbei auch das Prinzip der statischen Aufladung mit angewandt werden, wodurch die Farbpartikel vom behandel­ ten Profilstrang 1 angezogen werden, so daß der Farbauf­ trag allseitig gleichmäßig erfolgt. Ein nachgeschalteter Strahlerschirm 4 erhitzt die Oberfläche 7 des Profil­ stranges 1 mit den daran haftenden Farbpartikeln weiter, so daß beim Durchgang durch die anschließende Kalibrier­ düse 5 ein fester Verbund mit dem Kernstück des Profil­ stranges 1 herbeigeführt wird. Gleichzeitig wird die so behandelte Oberfläche 7 geglättet. Im Anschluß an die Kalibriereinrichtung 16 können Glättewalzen 6 ange­ ordnet sein, welche auch gekühlt sein können. Die Glät­ tewalzen 6 können auch als Profilwalzen ausgebildet sein. Anschließend passiert der Profilstrang 1 eine Kühlstrecke 14, die aus einem Wasserbad bestehen kann. Selbstverständlich kann die Kühlstrecke 14 auch mit Kaltluft oder mit einem anderen kalten Medium beauf­ schlagt werden. Im Falle, daß kein Farbauftrag auf den Profilstrang 1 aufgebracht werden soll, kann die Vorrich­ tung auch zum alleinigen Glätten bzw. Strukturieren der Oberfläche 7 des Profilstranges 1 verwendet werden.The apparatus shown in Figs. Consists of a conveyor belt 9 with which the plastic article (here a profile strand) 1 a first radiator screen 2 is supplied. The emitter screen 2 consists of infrared emitters 10 , which act on the profile strand 1 from all four sides, as shown in FIG. 2. The speed of the feed, the energy of the infrared radiation 10 and the path through the radiator screen 2 are matched to one another in such a way that the surface 7 of the profile strand 1 is plasticized to a depth of about 2 to 3 mm. Subsequently, the profile strand 1 comes into a swirl chamber 12 with swirled dye concentrate 15th The swirl is generated and maintained by a fan 13 . The color concentrate 15 remains well adhered to the plasticized, sticky surface 7 of the profile strand 1 . The principle of static charging can also be applied here, as a result of which the color particles are attracted to the profile strand 1 treated, so that the color order is uniform on all sides. A downstream radiator screen 4 heats the surface 7 of the profile strand 1 with the paint particles adhering to it, so that when passing through the subsequent calibration nozzle 5, a firm bond with the core of the profile strand 1 is brought about. At the same time, the surface 7 treated in this way is smoothed. Following the calibration device 16 , smoothing rollers 6 can be arranged, which can also be cooled. The smoothing rollers 6 can also be designed as profile rollers. Subsequently, the profile strand 1 passes through a cooling section 14 , which can consist of a water bath. Of course, the cooling section 14 can also be supplied with cold air or with another cold medium. In the event that no paint is to be applied to the profile strand 1 , the device can also be used for smoothing or structuring the surface 7 of the profile strand 1 .

Claims (6)

1. Verfahren zum Einfärben und/oder Glätten bzw. Strukturieren der Oberfläche von Gegenständen aus Kunst­ stoff, insbesondere aus Recycling-Kunststoff, dadurch gekennzeichnet, daß
  • a) der Kunststoffgegenstand (1) von einem Strahler­ schirm (2) an der Oberfläche (7) plastifiziert wird,
  • b) der Kunststoffgegenstand (1) durch eine Wirbelkam­ mer (12) mit verwirbeltem Farbkonzentrat (15) gebracht wird,
  • c) der Kunststoffgegenstand (1) in einem nachfolgen­ den Strahlerschirm (4) weiter erhitzt wird,
  • d) der Kunststoffgegenstand (1) durch eine Kalibrier­ düse (5) und/oder Glättewalzen bzw. Strukturierwalzen (6) geglättet bzw. verpreßt wird und daß
  • e) der Kunststoffgegenstand (1) anschließend längs einer Kühlstrecke (14) abgekühlt wird.
1. A method for coloring and / or smoothing or structuring the surface of objects made of plastic, in particular made of recycled plastic, characterized in that
  • a) the plastic object ( 1 ) is plasticized by a radiator screen ( 2 ) on the surface ( 7 ),
  • b) the plastic object ( 1 ) is brought through a whirl chamber ( 12 ) with swirled color concentrate ( 15 ),
  • c) the plastic object ( 1 ) is further heated in a subsequent radiator screen ( 4 ),
  • d) the plastic article (1) nozzle (5) through a calibration and / or smoothness or texturing rolls (6) is smoothed and pressed and in that
  • e) the plastic object ( 1 ) is then cooled along a cooling section ( 14 ).
2. Verfahren nach Anspruch 1, dadurch gekennzeichnet, daß bei der Behandlung mit Farbstoffkonzentrat (15) das Prinzip der statischen Aufladung angewandt wird. 2. The method according to claim 1, characterized in that the principle of static charging is applied in the treatment with dye concentrate ( 15 ). 3. Vorrichtung zur Durchführung des Verfahrens nach Anspruch 1 oder 2, mit einer Zuführeinrichtung, einem Strahlerschirm, einer Farb­ auftrageinrichtung, einem nachfolgenden Strahlerschirm und einer Kalibriereinrichtung und/oder Glättewalzen und einer Kühlstrecke, dadurch gekennzeichnet, daß die Zuführeinrichtung (8) aus einem Förderband (9), der Strahlerschirm (2) aus einem Infrarotstrahler (10), die Farbauftrageinrichtung (11) aus einer Wir­ belkammer (12) mit verwirbeltem Farbstoffkonzentrat (15), der nachfolgende Strahlerschirm (4) aus einem Infrarotstrahler (10), die Kalibriereinrichtung (16) aus einer Kalibrierdüse (5), die Glättewalzen (6) aus Profilwalzen (17) und die Kühlstrecke (14) aus einem Wasserbad (18) besteht.3. Device for performing the method according to claim 1 or 2, with a feed device, a lamp screen, a paint application device, a subsequent lamp screen and a calibration device and / or smoothing rollers and a cooling section, characterized in that the feed device ( 8 ) from a conveyor belt ( 9 ), the emitter screen ( 2 ) from an infrared emitter ( 10 ), the paint application device ( 11 ) from a we belkammer ( 12 ) with swirled dye concentrate ( 15 ), the subsequent emitter screen ( 4 ) from an infrared emitter ( 10 ), the calibration device ( 16 ) from a calibration nozzle ( 5 ), the smoothing rollers ( 6 ) from profile rollers ( 17 ) and the cooling section ( 14 ) from a water bath ( 18 ). 4. Vorrichtung nach Anspruch 3, dadurch gekennzeichnet, daß die Infrarotstrahler (10) von allen vier Seiten auf den Kunststoffgegenstand (1) einwirken.4. The device according to claim 3, characterized in that the infrared radiators ( 10 ) act on all four sides of the plastic object ( 1 ). 5. Vorrichtung nach Anspruch 4, dadurch gekennzeichnet, daß die Verwirbelung des Farbstoffkonzentrats (15) in der Wirbelkammer (12) mittels eines Gebläses (13) erfolgt.5. The device according to claim 4, characterized in that the swirling of the dye concentrate ( 15 ) in the swirl chamber ( 12 ) by means of a fan ( 13 ). 6. Vorrichtung nach Anspruch 4, dadurch gekennzeichnet, daß ohne Aufbringen eines Farbkonzentrates die erweichte Außenschicht mittels Glätte- oder Struktu­ rierwalzen geprägt wird.6. The device according to claim 4, characterized in that without applying a color concentrate softened outer layer by means of smoothness or structure rierwalzen is shaped.
DE4200841A 1992-01-15 1992-01-15 Colouring, smoothing or structuring surfaces of e.g. recycled plastic - includes plasticising and then passing through a vortex chamber contg. a conc. dye Expired - Fee Related DE4200841C1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE4200841A DE4200841C1 (en) 1992-01-15 1992-01-15 Colouring, smoothing or structuring surfaces of e.g. recycled plastic - includes plasticising and then passing through a vortex chamber contg. a conc. dye

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DE4200841A DE4200841C1 (en) 1992-01-15 1992-01-15 Colouring, smoothing or structuring surfaces of e.g. recycled plastic - includes plasticising and then passing through a vortex chamber contg. a conc. dye

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0829339A1 (en) * 1996-09-13 1998-03-18 Technoplast Kunststofftechnik Gesellschaft m.b.H. Method for manufacturing plastic profiles
EP0942092A1 (en) * 1998-03-06 1999-09-15 Solipat Ag An apparatus for drying and/or polymerizing an impregnated web material

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3441906A1 (en) * 1984-11-16 1986-05-28 Erich 6520 Worms Beck Process for producing mouldings from thermoplastics-containing waste and from pure thermoplastics
DE3535255A1 (en) * 1984-12-10 1986-07-10 VEB Kombinat Härtol Magdeburg, DDR 3019 Magdeburg Process for producing non-porous surface of construction elements
DE3934199A1 (en) * 1988-10-15 1990-04-19 Phoenix Ag Mould release agent for plastic mouldings - comprising soln. of wax in mixt. of high b.pt. petroleum hydrocarbon(s) or higher alcohol acetate(s) and chlorinated hydrocarbon(s)

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3441906A1 (en) * 1984-11-16 1986-05-28 Erich 6520 Worms Beck Process for producing mouldings from thermoplastics-containing waste and from pure thermoplastics
DE3535255A1 (en) * 1984-12-10 1986-07-10 VEB Kombinat Härtol Magdeburg, DDR 3019 Magdeburg Process for producing non-porous surface of construction elements
DE3934199A1 (en) * 1988-10-15 1990-04-19 Phoenix Ag Mould release agent for plastic mouldings - comprising soln. of wax in mixt. of high b.pt. petroleum hydrocarbon(s) or higher alcohol acetate(s) and chlorinated hydrocarbon(s)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0829339A1 (en) * 1996-09-13 1998-03-18 Technoplast Kunststofftechnik Gesellschaft m.b.H. Method for manufacturing plastic profiles
EP0942092A1 (en) * 1998-03-06 1999-09-15 Solipat Ag An apparatus for drying and/or polymerizing an impregnated web material

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