DE3637524A1 - Multicoloured thermoplastic film - Google Patents

Multicoloured thermoplastic film

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Publication number
DE3637524A1
DE3637524A1 DE19863637524 DE3637524A DE3637524A1 DE 3637524 A1 DE3637524 A1 DE 3637524A1 DE 19863637524 DE19863637524 DE 19863637524 DE 3637524 A DE3637524 A DE 3637524A DE 3637524 A1 DE3637524 A1 DE 3637524A1
Authority
DE
Germany
Prior art keywords
base material
colored
thermoplastic film
particles
softening temperature
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
DE19863637524
Other languages
German (de)
Other versions
DE3637524C2 (en
Inventor
Konrad Dipl Ing Eysel
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.)
GOEPPINGER KALIKO KUNSTLEDER
Original Assignee
GOEPPINGER KALIKO KUNSTLEDER
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Filing date
Publication date
Application filed by GOEPPINGER KALIKO KUNSTLEDER filed Critical GOEPPINGER KALIKO KUNSTLEDER
Priority to DE19863637524 priority Critical patent/DE3637524A1/en
Publication of DE3637524A1 publication Critical patent/DE3637524A1/en
Application granted granted Critical
Publication of DE3637524C2 publication Critical patent/DE3637524C2/de
Granted 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
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/40—General aspects of joining substantially flat articles, e.g. plates, sheets or web-like materials; Making flat seams in tubular or hollow articles; Joining single elements to substantially flat surfaces
    • B29C66/41—Joining substantially flat articles ; Making flat seams in tubular or hollow articles
    • B29C66/43—Joining a relatively small portion of the surface of said articles
    • 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
    • B29C43/00—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor
    • B29C43/22—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor of articles of indefinite length
    • B29C43/30—Making multilayered or multicoloured articles
    • 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
    • B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/56—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor using mechanical means or mechanical connections, e.g. form-fits
    • B29C65/62—Stitching
    • 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
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/01—General aspects dealing with the joint area or with the area to be joined
    • B29C66/05—Particular design of joint configurations
    • B29C66/10—Particular design of joint configurations particular design of the joint cross-sections
    • B29C66/11—Joint cross-sections comprising a single joint-segment, i.e. one of the parts to be joined comprising a single joint-segment in the joint cross-section
    • B29C66/114—Single butt joints
    • B29C66/1142—Single butt to butt joints
    • 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
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/70—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material
    • B29C66/72—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the structure of the material of the parts to be joined
    • B29C66/721—Fibre-reinforced 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
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/70—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material
    • B29C66/73—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset
    • B29C66/733—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the optical properties of the material of the parts to be joined, e.g. fluorescence, phosphorescence
    • B29C66/7332—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the optical properties of the material of the parts to be joined, e.g. fluorescence, phosphorescence at least one of the parts to be joined being coloured
    • 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
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/70—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material
    • B29C66/73—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset
    • B29C66/735—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the extensive physical properties of the parts to be joined
    • B29C66/7352—Thickness, e.g. very thin
    • B29C66/73521—Thickness, e.g. very thin of different thickness, i.e. the thickness of one of the parts to be joined being different from the thickness of the other part
    • 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
    • B29C67/00—Shaping techniques not covered by groups B29C39/00 - B29C65/00, B29C70/00 or B29C73/00
    • B29C67/0007—Manufacturing coloured articles not otherwise provided for, e.g. by colour change
    • 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
    • B29C70/00—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts
    • B29C70/58—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts comprising fillers only, e.g. particles, powder, beads, flakes, spheres
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B44—DECORATIVE ARTS
    • B44F—SPECIAL DESIGNS OR PICTURES
    • B44F11/00—Designs imitating artistic work
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B44—DECORATIVE ARTS
    • B44F—SPECIAL DESIGNS OR PICTURES
    • B44F3/00—Designs characterised by outlines
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R13/00—Elements for body-finishing, identifying, or decorating; Arrangements or adaptations for advertising purposes
    • B60R13/02—Internal Trim mouldings ; Internal Ledges; Wall liners for passenger compartments; Roof liners
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L27/00—Compositions of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Compositions of derivatives of such polymers
    • C08L27/02—Compositions of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Compositions of derivatives of such polymers not modified by chemical after-treatment
    • C08L27/04—Compositions of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Compositions of derivatives of such polymers not modified by chemical after-treatment containing chlorine atoms
    • C08L27/06—Homopolymers or copolymers of vinyl chloride
    • 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
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/70—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material
    • B29C66/71—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the composition of the plastics material of the parts to be joined
    • 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
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/70—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material
    • B29C66/72—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the structure of the material of the parts to be joined
    • B29C66/721—Fibre-reinforced materials
    • B29C66/7214—Fibre-reinforced materials characterised by the length of the fibres
    • B29C66/72141—Fibres of continuous length
    • 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
    • B29K2995/0021—Multi-coloured
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L2205/00—Polymer mixtures characterised by other features
    • C08L2205/14—Polymer mixtures characterised by other features containing polymeric additives characterised by shape
    • C08L2205/18—Spheres
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L33/00—Compositions of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and only one being terminated by only one carboxyl radical, or of salts, anhydrides, esters, amides, imides or nitriles thereof; Compositions of derivatives of such polymers
    • C08L33/04—Homopolymers or copolymers of esters
    • C08L33/06—Homopolymers or copolymers of esters of esters containing only carbon, hydrogen and oxygen, which oxygen atoms are present only as part of the carboxyl radical
    • C08L33/08—Homopolymers or copolymers of acrylic acid esters

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Composite Materials (AREA)
  • Manufacturing & Machinery (AREA)
  • Laminated Bodies (AREA)

Abstract

The invention relates to a multicoloured thermoplastic film, in particular for lining vehicle interiors, comprising a preferably single-coloured basic material and at least one differently coloured admixture. For aesthetic reasons, a textile appearance is required for such a film, for which purpose its visible surface is not only embossed to imitate the course of a knitted or woven thread, but also exhibits speckles of colour imitating the inhomogeneous coloration of a natural fibre. To produce an abrasion-resistant speckling, it is proposed, as a departure from the previous practice of printing onto the film, to colour it throughout the material by mixing in with the preferably single-coloured basic material particles of a different colour which are significantly larger than pigments and, at the softening point of the basic material, are solid or at least significantly more viscous than the basic material. In contrast to the known different coloured admixtures for floorings and desk pads etc., any streaking is avoided.

Description

Die Erfindung bezieht sich auf mehrfarbige thermoplastische Folien, bestehend aus einem vorzugsweise einfarbigen Grundmaterial und minde­ stens einer andersfarbigen Beimischung. Solche Folien werden häufig für die Innenausstattung von Kraftfahrzeugen eingesetzt, beispiels­ weise zur Innenverkleidung der Türen. Aus äthetischen Gründen wird für solche Folien häufig ein textiles Aussehen verlangt. Dazu muß nicht nur die sichtbare Oberfläche der Folie so geprägt werden, daß ein bestimmter Fadenlauf, beispielsweise ein Strick- oder Webdessin, imitiert wird, sondern es muß auch die inhomogene Färbung eines natür­ lichen Fadens nachgeahmt werden. Die charakteristischen Farbsprenkel müssen etwa die Größe des zu imitierenden Fadens aufweisen. Sie dür­ fen keine hervorstechende Längsachse zeigen, und jeder Sprenkel muß eine etwa gleich große Oberfläche aufweisen in der Größenordnung von einem Viertel-Quadratmillimeter und darunter. Diese Anforderungen konnten bislang nur dadurch erfüllt werden, daß die geprägten Ober­ flächen vorzugsweise einfarbiger Folien mit mindestens einem anderen Farbton bedruckt wurden. Die so erstellten Produkte hatten den Nach­ teil, daß nach längerer Strapazierung und Beanspruchung auf Abrieb, wie er bei Kraftfahrzeugtüren im Bereich der Türgriffe, der Fenster­ kurbeln und der gerade bei Kleinwagen zu beobachtenden Knieanlage des Fahrers an die Tür auftritt, neben einer Verflachung der eingeprägten Oberflächenstruktur die Farbsprenkelung verloren ging und dadurch der stilistisch erwünschte Textileindruck beeinträchtigt wurde. Der Erfin­ dung liegt die Aufgabe zugrunde, eine abriebbeständigere Farbsprenke­ lung thermoplastischer Folien zu ermöglichen.The invention relates to multicolored thermoplastic films, consisting of a preferably single-colored base material and minde at least a different colored admixture. Such slides are common used for the interior of motor vehicles, for example wise for the interior lining of the doors. For aesthetic reasons often requires a textile appearance for such films. To do this not only the visible surface of the film can be shaped in such a way that a certain thread course, for example a knitting or weaving design, is imitated, but it must also the inhomogeneous coloring of a natural imitation thread. The characteristic color speckles must be about the size of the thread to be imitated. You may fen show no salient longitudinal axis, and each speckle must have an approximately equal surface area on the order of a quarter of a square millimeter and below. These requirements could only be fulfilled so far that the embossed waiters surfaces preferably monochrome films with at least one other Color were printed. The products created in this way had the night partly that after prolonged wear and tear for abrasion, as in the case of motor vehicle doors in the area of the door handles, the windows crank and the knee system of the Driver appears at the door, in addition to flattening the embossed The surface structure lost the speckles of color and as a result the stylistically desired textile impression was impaired. The inventor The task is based on a more abrasion-resistant paint spray to enable thermoplastic films.

Die Aufgabe wird erfindungsgemäß dadurch gelöst, daß dem vorzugsweise einfarbigen Grundmaterial andersfarbige Partikel beigemischt sind, die bei der Erweichungstemperatur des Grundmaterials fest oder zumin­ dest wesentlich zäher als das Grundmaterial sind. Infolgedessen fin­ det sich die Farbsprenkelung nicht mehr nur an der sichtbaren Ober­ fläche, sondern sie erstreckt sich über die gesamte Folienstärke; die Farbgebung der Folie ist also - und zwar einschließlich der Sprenke­ lung - massiv. Auch nach Abrieb der Oberfläche bleibt die Sprenkelung erhalten. The object is achieved in that the preferably single-colored base material is mixed with differently colored particles which are solid at the softening temperature of the base material or at least substantially tougher than the base material. As a result, the color speckling is no longer found only on the visible surface, but extends across the entire film thickness; The coloring of the film is massive - including the sprinkling. The mottling is retained even after the surface has been abraded.

Von besonderer Wichtigkeit ist, daß die dem Grundmaterial zugesetzte andersfarbige Beimischung Partikel sind und - während aller nachfol­ genden Verfahrungsschritte des Mischens, Kalandrierens und des eventuellen Prägens - Partikel von höchstens geringfügig geänderter geometrischer Form bleiben. Dabei wird eine genäherte Kugelgestalt der andersfarbigen Partikel mit Durchmessern zwischen 30% und 80% der Folienwandstärke bevorzugt.It is of particular importance that the different colored admixtures added to the base material are particles and - during all subsequent procedural steps of mixing, calendering and eventual embossing - particles of at most slightly changed geometric shape remain. An approximate spherical shape of the different colored particles with diameters between 30% and 80% of the film wall thickness is preferred.

Unter Aufgabe der bislang immer geforderten engen chemischen Verwandt­ schaft zwischen Grundmaterial und Beimischung wird die Formbeständig­ keit der beigemischten andersfarbigen Partikel dadurch erreicht, daß sie bei der Erweichungstemperatur des Grundmaterials hart oder zumin­ dest wesentlich zäher als das Grundmaterial sind. Durch die große Un­ terschiedlichkeit beider miteinander vermischter Massen im Erwei­ chungs- bzw. Schmelzverhalten wird das bislang bei zweifarbigen Mi­ schungen immer zu beobachtende Zerfließen der eingefärbten Flächen in der Kalandrierrichtung, was einen streifenartigen, eine bevorzugte Längsrichtung aufweisenden Farbeffekt nach sich zog, verhindert. Als Werkstoffe mit der geforderten Unterschiedlichkeit werden ein Weich- PVC als Grundmaterial und ein vorzugsweise vernetztes Acryl-Polymeri­ sat für die andersfarbigen Partikel vorgeschlagen.With the abandonment of the close chemical relatives that have always been required The shape between the base material and the admixture becomes stable speed of the mixed different colored particles achieved in that it hard or at the softening temperature of the base material least much tougher than the base material. Because of the big Un Differences between the two masses mixed together in expansion So far, the two-color Mi always observed bleeding of the colored areas in the calendering direction, which is a streak-like one, preferred Longitudinal color effect, prevented. As Materials with the required diversity are soft PVC as the base material and a preferably cross-linked acrylic polymer sat suggested for the different colored particles.

Mit Rücksicht darauf, daß sich als Grundmaterial der Folie ein Kunst­ stoff besonders eignet, wird zur Kennzeichnung des Foliengrundmate­ rials nicht von einem Schmelzpunkt, sondern einer Erweichungstempera­ tur ϑ gesprochen; der Übergang vom festen in den flüssigen Zustand erfolgt beim erwähnten Weich-PVC nicht scharf begrenzt bei einer Temperatur, sondern allmählich innerhalb eines Temperaturintervalles (amorphes Verhalten). Mit dem Begriff "Erweichungstemperatur" ist im Rahmen dieser Anmeldung die Temperatur gemeint, wo 50 Gramm des zähflüssig gewordenen Werkstoffes in dem "Plasti-Corder" der Firma Brabender ein Schermoment von etwa 56 Nm bei der Drehzahl 56 1/min hervorrufen. Wenn aber - was auch im Rahmen dieser Erfindung liegt - als Foliengrundmaterial ein Werkstoff mit ausgeprägtem Schmelzpunkt eingesetzt wird, so kann der allgemeine Begriff "Erweichungstempera­ tur" durch "Schmelztemperatur" ersetzt werden. Particularly suitable with regard to the fact that a plastic material is as a base material of the film, for the identification of the film base mate rials not spoken by a melting point, but a structure Erweichungstempera θ; The transition from the solid to the liquid state does not take place sharply delimited at one temperature in the soft PVC mentioned, but gradually within a temperature interval (amorphous behavior). By the term "softening point" in the context of this application is meant the temperature where 50 grams of the company / cause of the now viscous material in the "Plasti-Corder" Brabender a shear torque of about 56 Nm at the speed of 56 1 min. But if - which is also within the scope of this invention - a material with a pronounced melting point is used as the film base material, the general term "softening temperature" can be replaced by "melting temperature".

Die beschriebenen thermoplastischen Folien nehmen ein mit echten Tex­ tilien verwechselbares Aussehen an, wenn der Konstrast zwischen dem Grundmaterial und den andersfarbigen Partikeln groß gewählt wird. Zur Farbgebung der andersfarbigen Partikel wird deren Pigmentierung vor­ geschlagen, vorzugsweise mit Ruß.The described thermoplastic films take on real Tex confused appearance when the contrast between the Base material and the different colored particles is chosen large. To Coloring of the different colored particles becomes their pigmentation beaten, preferably with soot.

Die beschriebenen textilimitierenden thermoplastischen Folien werden vorzugsweise nach folgendem Verfahren hergestellt: Zunächst wird das flüssige farblose Acryl-Polymerisat sprühgetrocknet, d.h. mit Ruß vermischt, durch eine kalibrierte Düse gesprüht, wobei sich etwa kugelförmige Tröpfchen bilden, die bei Abkühlung erstarren, dann werden die festen eingefärbten Partikel dem auf seine Erweichungstem­ peratur oder bis knapp darüber erhitzten Weich-PVC zugesetzt, beide Substanzen werden nach an sich bekannten Verfahren im Innenmischer oder auf Kalandern gemischt, wobei die Drücke und insbesondere Temperaturen deutlich unterhalb der für eine Verformung der Polyacryl­ partikel erforderlichen Zustände bleiben, aus dieser Materialbahn wird schließlich, wie an sich bekannt, die gewünschte Folie als Bahn kalandriert, geprägt, abgekühlt und zugeschnitten.The described textile-limiting thermoplastic films are preferably manufactured according to the following process: First, the liquid colorless acrylic polymer spray-dried, i.e. with soot mixed, sprayed through a calibrated nozzle, with approximately then form spherical droplets that solidify when cooled the solid colored particles will soften at their softening point added to the temperature or to slightly heated PVC, both Substances are mixed in the internal mixer using methods known per se or mixed on calenders, the pressures and in particular Temperatures well below that for deformation of the polyacrylic Particle required states remain from this web of material finally, as is known per se, the desired film as a web calendered, embossed, cooled and cut.

Die Erfindung wird nachfolgend anhand dreier Figuren näher erläutert. Es zeigt:The invention is explained in more detail below with the aid of three figures. It shows:

Fig. 1 einen Querschnitt durch eine gesprenkelt mehrfarbige thermoplastische Folie mit auf einer Seite eingeprägtem Textildessin, Fig. 1 shows a cross section through a mottled multicolor thermoplastic film embossed with the pattern on one side of the textile,

Fig. 2 zwei randverstärkte Folien mit einer stumpfen Verbindungs­ naht in der Draufsicht und Fig. 2 two edge-reinforced films with a butt connection seam in plan view and

Fig. 3 die gleichen Folien wie in der vorigen Figur, jedoch im Querschnitt. Fig. 3 shows the same films as in the previous figure, but in cross section.

Die in Fig. 1 gezeigte Folie besteht aus einem einfarbigen hellgrauen Grundmaterial 1, in das schwarze Partikel 2 eingebettet sind. Einige der Partikel 2 berühren die obere, mit einem Textilmuster geprägte Sichtfläche 3 und rufen dort eine gesprenkelte Mehrfarbigkeit hervor. The film shown in Fig. 1 consists of a single-color light gray base material 1 , in which black particles 2 are embedded. Some of the particles 2 touch the upper visible surface 3, which is embossed with a textile pattern, and produce a speckled multicolor there.

Das Grundmaterial 1 ist Weich-PVC, das mit den schwarzen Partikel 2 gemischt wurde. Die schwarzen, in etwa gleichmäßig verteilten Partikel 2 sind mit Ruß schwarz pigmentierte Polyacrylkügelchen, die durch Sprühtrocknung gebildet wurden. Insbesondere im Bereich der Folien­ oberflächen 3, 3 a sind die Partikel 2 geringfügig abgeflacht durch ungleichmäßige Druckeinwirkung in diesen Zonen während des letzten Kalandrierens und Prägens. Die Folie hat die Form einer Bahn, die zu beiden Seiten durch die Ränder 7 begrenzt ist.The base material 1 is soft PVC, which has been mixed with the black particles 2 . The black, approximately evenly distributed particles 2 are black pigmented polyacrylic beads with soot, which were formed by spray drying. In the area of the film surfaces 3 , 3 a in particular, the particles 2 are slightly flattened due to uneven pressure in these zones during the last calendering and embossing. The film has the shape of a web which is delimited on both sides by the edges 7 .

Die beiden in Fig. 2 gezeigten Folien 9, 10 sind an ihren Rändern 7 durch eingelegte Fäden 4, 5 verstärkt. Die linke Folie 9 weist zwei dünne Fäden 4 pro Rand, die rechte 10 einen dicken 5 pro Rand auf. Diese Randverstärkungen der Folien 9, 10 empfehlen sich dann, wenn die textilimitierenden Folien mit für Textilien typischen Verfahren weiterverarbeitet werden sollen wie Säumen, Bördeln und Nähen. Neben dem üblichen überlappenden Nähen ist auch, wie dargestellt, ein stumpfes Voreinandernähen mit dem Faden 6 möglich. Durch kurze örtli­ che Erhitzung der Nahtoberflächen kann die Naht 8 unter Ausnutzung des thermoplastischen Verhaltens zumindest des Grundmaterials 1 was­ serdicht gemacht werden.The two films 9 , 10 shown in FIG. 2 are reinforced at their edges 7 by inserted threads 4 , 5 . The left film 9 has two thin threads 4 per edge, the right 10 has a thick 5 per edge. These edge reinforcements of the foils 9 , 10 are recommended if the textile-imitating foils are to be processed further using processes typical of textiles, such as hemming, flanging and sewing. In addition to the usual overlapping sewing, blunt sewing together with the thread 6 is also possible, as shown. By briefly heating the seam surfaces locally, the seam 8 can be made water-tight using the thermoplastic behavior of at least the base material 1 .

Natürlich können in an sich bekannter Weise zwei erfindungsgemäße Folien auch allein durch Schweißung miteinander verbunden werden, wo­ zu an den Folienrändern keine Fadeneinlagen benötigt werden. In jedem Falle bleibt beim Schweißen - und das ist für den äthetischen Eindruck von besonderer Wichtigkeit - die textiltypische Farbsprenkelung vollkommen erhalten, weil die andersfarbigen Partikel 2 bei der Erweichungstemperatur des Grundmaterials 1 fest oder zumindest wesentlich zäher als das Grundmaterial 1 sind.Of course, in a manner known per se, two foils according to the invention can also be connected to one another solely by welding, where no thread inserts are required at the foil edges. In any case, remains in welding - and this is for the äthetischen impression of particular importance - perfectly preserved the textile typical Farbsprenkelung because the different colored particles 2 are at the softening temperature of the base material 1 fixed or at least substantially tougher than the base material. 1

Die beiden zusammengenähten und oberflächlich verschweißten Folien­ bahnen 9, 10 werden in Fig. 3 im Querschnitt gezeigt. An der stumpfen Naht 8 erkennt man das örtliche Zusammenfließen der Grundmaterialien 1 der beiden Folien 9 und 10. Die Dichtigkeit der Naht 8 wird beson­ ders zuverlässig erreicht, wenn beide Folien 9, 10 in ihrem Grund­ material übereinstimmen. Die andersfarbigen Partikel 2 beider Folien 9, 10 brauchen hingegen nicht gleich zu sein, weder im Werkstoff, noch der Größe, noch der Farbgebung, da die Sprenkelungen nicht zerfließen und sich nicht miteinander vermischen. Wie gezeigt, ist es bei mit Fäden 4, 5 verstärkten Rändern 7 sogar möglich, verschieden starke Folien 9, 10 zusammenzunähen. Dadurch, daß der Verbindungsfaden 6 jeweils abwechselnd einem der beiden Fäden 4 der Folie 9 umschlingt, sind die dünnen Fäden 4 gegenüber dem einen starken Faden 5 der Folienbahn 10 nicht rißgefährdet. Diese Verfahrenstechnik erlaubt er­ hebliche Materialeinsparungen, zum einen weil keine Überlappungen nö­ tig sind und zum anderen, weil mit einem Fügeverfahren wie diesem die Folienwandstärke der örtlichen Beanspruchung angepaßt werden kann. Erst dadurch, daß bei einer solchen Verbindung der textile Gesamtein­ druck der Folie nicht beeinträchtigt wird, wird die beschriebene Verbindungstechnik stilistisch vertretbar. Während bislang die typische Farbsprenkelung bei Ausnutzung der Thermoplastizität verloren ging, bleibt sie nun, wo in das Foliengrundmaterial 1 andersfarbige Partikel 2 eingebettet sind, die bei der Erweichungstemperatur des Grundmaterials 1 nicht weich sind, erhalten.The two sewn together and superficially welded film webs 9 , 10 are shown in cross-section in Fig. 3. The blended seam 8 shows the local confluence of the base materials 1 of the two foils 9 and 10 . The tightness of the seam 8 is particularly reliably achieved when both foils 9 , 10 match in their basic material. The differently colored particles 2 of both foils 9 , 10 , on the other hand, need not be the same, neither in the material, nor in the size, nor in the coloring, since the speckles do not flow and do not mix with one another. As shown, it is even possible in the case of edges 7 reinforced with threads 4 , 5 to sew foils 9 , 10 of different thickness together. Characterized in that the connecting thread 6 alternately wraps around one of the two threads 4 of the film 9 , the thin threads 4 are not at risk of tearing compared to the one strong thread 5 of the film web 10 . This process technology allows considerable material savings, on the one hand because there are no overlaps and on the other hand, because with a joining process like this, the film wall thickness can be adapted to local stress. Only by the fact that with such a connection the overall textile pressure of the film is not impaired, the connection technology described is stylistically justifiable. While in the past the typical Farbsprenkelung was lost when utilizing the thermal plasticity, it remains now, is where embedded in the film base material 1 differently colored particles 2, which are not soft at the softening temperature of the base material 1 was obtained.

Aufgrund dieser guten Verarbeitungsmöglichkeiten, der Dichtheit, der Abwaschbarkeit und des von Textilien nicht zu unterscheidenden Aussehens eignen sich erfindungsgemäße Folien auch zur Herstellung von Tischdecken, Servietten, Krawatten, Regenmänteln und ähnlichem. Entscheidend ist ganz allgemein, daß die thermoplastischen Eigen­ schaften des Foliengrundmaterials, das vorzugsweise ein weich einge­ stelltes PVC ist, beim Kalandrieren, Prägen oder eventuellen Fugen ohne Erweichung der die Sprenkelung hervorrufenden andersfarbigen Partikel möglich ist. Bei verbesserter Produktqualität wird überdies mit der Erfindung ein einfaches Herstellungsverfahren ermöglicht: Es ist kein Bedrucken mehr erforderlich.Because of these good processing options, the tightness, the Washability and indistinguishable from textiles In terms of appearance, films according to the invention are also suitable for production of tablecloths, napkins, ties, raincoats and the like. It is crucial in general that the thermoplastic Eigen shafts of the film base material, which is preferably a soft turned PVC is, when calendering, embossing or possible joints without softening the different colored ones causing the mottling Particle is possible. In addition, with improved product quality allows a simple manufacturing process with the invention: It printing is no longer necessary.

Claims (10)

1. Mehrfarbige, thermoplastische Folie, insbesondere zur Verkleidung von Fahrzeuginnenräumen, bestehend aus einem vorzugsweise einfar­ bigen Grundmaterial und mindestens einer andersfarbigen Beimi­ schung, dadurch gekennzeichnet, daß die andersfarbi­ gen Beimischungen solche Partikel (2) sind, die wesentlich größer als Pigmente sind und die bei der Erweichungstemperatur des Grundmaterials (1) fest oder zumindest wesentlich zäher als das Grundmaterial (1) sind.1. Multi-colored, thermoplastic film, in particular for cladding vehicle interiors, consisting of a preferably monochrome base material and at least one different colored admixture, characterized in that the differently colored admixtures are particles ( 2 ) which are substantially larger than pigments and which at the softening temperature of the base material ( 1 ) are solid or at least considerably tougher than the base material ( 1 ). 2. Mehrfarbige, thermoplastische Folie nach Anspruch 1, dadurch ge­ kennzeichnet, daß die andersfarbigen Partikel (2) näherungsweise die Kugelgestalt aufweisen.2. Multi-colored, thermoplastic film according to claim 1, characterized in that the differently colored particles ( 2 ) have approximately the spherical shape. 3. Mehrfarbige, thermoplastische Folie nach Anspruch 1, dadurch ge­ kennzeichnet, daß die Durchmesser der andersfarbigen Partikel (2) etwa 30% bis 80% der Folienwandstärke betragen.3. Multi-colored, thermoplastic film according to claim 1, characterized in that the diameter of the differently colored particles ( 2 ) are about 30% to 80% of the film wall thickness. 4. Mehrfarbige, thermoplastische Folie nach Anspruch 1, dadurch ge­ kennzeichnet, daß das Grundmaterial (1) eine Erweichungstemperatur zwischen etwa 160°C und 180°C aufweist und alle andersfarbigen Partikel (2) eine um mindestens 30°C höher liegende Erweichungstem­ peratur als das Grundmaterial aufweisen.4. Multi-colored, thermoplastic film according to claim 1, characterized in that the base material ( 1 ) has a softening temperature between about 160 ° C and 180 ° C and all differently colored particles ( 2 ) are at least 30 ° C higher than Softening temperature have the base material. 5. Mehrfarbige, thermoplastische Folie nach Anspruch 1, dadurch ge­ kennzeichnet, daß das Grundmaterial (1) ein Weich-PVC ist.5. Multi-colored, thermoplastic film according to claim 1, characterized in that the base material ( 1 ) is a soft PVC. 6. Mehrfarbige, thermoplastische Folie nach Anspruch 1, dadurch ge­ kennzeichnet, daß die andersfarbigen Partikel (2) ein Acryl-Polyme­ risat sind.6. Multi-colored, thermoplastic film according to claim 1, characterized in that the differently colored particles ( 2 ) are an acrylic polymer risat. 7. Mehrfarbige, thermoplastische Folie nach Anspruch 1, dadurch ge­ kennzeichnet, daß die andersfarbigen Partikel (2) pigmentiert sind, vorzugsweise mit Ruß.7. Multi-colored, thermoplastic film according to claim 1, characterized in that the differently colored particles ( 2 ) are pigmented, preferably with carbon black. 8. Verfahren zur Herstellung einer mehrfarbigen, thermoplastischen, kalandrierten Folienbahn, dadurch gekennzeichnet, daß in das vor­ zugsweise einfarbige Foliengrundmaterial mit einer bestimmten Erweichungstemperatur ϑ andersfarbige Partikel beigemischt werden, die bei der Erweichungstemperatur ϑ des Grundmaterials fest oder zumindest wesentlich zäher als das Grundmaterial sind, und daß während des Mischens, des nachfolgenden Kalandrierens und des eventuell nachfolgenden Prägens die Temperaturen die Erwei­ chungstemperatur ϑ nicht übersteigen und die Drücke so gering sind, daß die geometrische Form der andersfarbigen Partikel im we­ sentlichen unverändert bleibt.8. A method for producing a multicolored thermoplastic calendered film web, characterized in that are mixed in the single-color before preferably film base material having a certain softening temperature θ differently colored particles at the softening temperature of the base material θ fixed, or at least are significantly tougher than the base material, and that during the mixing, the subsequent calendering and the subsequent embossing, the temperatures do not exceed the softening temperature ϑ and the pressures are so low that the geometric shape of the differently colored particles remains essentially unchanged. 9. Verfahren zur Herstellung einer mehrfarbigen Folienbahn nach An­ spruch 8, dadurch gekennzeichnet, daß die andersfarbigen Partikel, die dem Grundmaterial vor oder bei dessen Mischung beigegeben wer­ den, durch Sprühtrocknen hergestellt werden.9. A method for producing a multi-colored film web according to An Proverb 8, characterized in that the different colored particles, who are added to the base material before or when it is mixed which are produced by spray drying. 10. Mehrfarbige, thermoplastische Folie nach Anspruch 1, dadurch ge­ kennzeichnet, daß in den Rändern (7) textile Festigkeitsträger (4, 5) eingebettet sind.10. Multi-colored, thermoplastic film according to claim 1, characterized in that in the edges ( 7 ) textile reinforcements ( 4 , 5 ) are embedded.
DE19863637524 1986-11-04 1986-11-04 Multicoloured thermoplastic film Granted DE3637524A1 (en)

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DE19863637524 DE3637524A1 (en) 1986-11-04 1986-11-04 Multicoloured thermoplastic film

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EP0484797A2 (en) * 1990-11-07 1992-05-13 GROSS, Heinz, Dr.-Ing. Extruded plastic web with calendered surface
EP0625170A1 (en) * 1992-02-04 1994-11-23 Congoleum Corporation Decorative floor coverings having the appearance of ceramic tile and compositions and methods for making same
WO1997015429A2 (en) * 1995-10-21 1997-05-01 Benecke-Kaliko Ag Process for producing a multi-coloured thermoplastic plastics foil, and a multi-coloured thermoplastic plastics foil
US6083446A (en) * 1996-10-18 2000-07-04 Banecke-Kaliko Ag Process for producing a multi-colored thermoplastic plastics foil, and a multi-colored thermoplastic plastics foil
EP1240990A1 (en) * 2001-03-15 2002-09-18 Bayerische Motoren Werke Aktiengesellschaft Slush moulding process

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DE19525136C1 (en) * 1995-07-11 1996-08-22 Benecke Kaliko Ag Multicoloured thermoplastic film prodn.

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CH593810A5 (en) * 1973-04-26 1977-12-15 All Decostone Nv
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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0484797A2 (en) * 1990-11-07 1992-05-13 GROSS, Heinz, Dr.-Ing. Extruded plastic web with calendered surface
EP0484797A3 (en) * 1990-11-07 1992-05-27 Roehm Gmbh Extruded plastic web with calendered surface
EP0625170A1 (en) * 1992-02-04 1994-11-23 Congoleum Corporation Decorative floor coverings having the appearance of ceramic tile and compositions and methods for making same
JPH08503493A (en) * 1992-02-04 1996-04-16 コンゴレアム コーポレーション Decorative floor coverings having the appearance of ceramic tiles and compositions and methods for making the floor coverings
EP0625170A4 (en) * 1992-02-04 1996-06-05 Congoleum Corp Decorative floor coverings having the appearance of ceramic tile and compositions and methods for making same.
WO1997015429A2 (en) * 1995-10-21 1997-05-01 Benecke-Kaliko Ag Process for producing a multi-coloured thermoplastic plastics foil, and a multi-coloured thermoplastic plastics foil
WO1997015429A3 (en) * 1995-10-21 1997-07-17 Benecke Kaliko Ag Process for producing a multi-coloured thermoplastic plastics foil, and a multi-coloured thermoplastic plastics foil
US6083446A (en) * 1996-10-18 2000-07-04 Banecke-Kaliko Ag Process for producing a multi-colored thermoplastic plastics foil, and a multi-colored thermoplastic plastics foil
EP1240990A1 (en) * 2001-03-15 2002-09-18 Bayerische Motoren Werke Aktiengesellschaft Slush moulding process

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