EP3496871B1 - Procédé de fabrication d'un panneau en matière plastique muni d'un revêtement, panneau en matière plastique et appareil ménager contenant ce panneau en matière plastique - Google Patents

Procédé de fabrication d'un panneau en matière plastique muni d'un revêtement, panneau en matière plastique et appareil ménager contenant ce panneau en matière plastique Download PDF

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Publication number
EP3496871B1
EP3496871B1 EP17743305.9A EP17743305A EP3496871B1 EP 3496871 B1 EP3496871 B1 EP 3496871B1 EP 17743305 A EP17743305 A EP 17743305A EP 3496871 B1 EP3496871 B1 EP 3496871B1
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EP
European Patent Office
Prior art keywords
plastic
film
coating layer
plastic body
partial surface
Prior art date
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Active
Application number
EP17743305.9A
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German (de)
English (en)
Other versions
EP3496871A1 (fr
Inventor
Alexander John
Lothar Knopp
Bernhard Kobl
Alexander Schlaß
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.)
BSH Hausgeraete GmbH
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BSH Hausgeraete 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 BSH Hausgeraete GmbH filed Critical BSH Hausgeraete GmbH
Priority to PL17743305T priority Critical patent/PL3496871T3/pl
Publication of EP3496871A1 publication Critical patent/EP3496871A1/fr
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Publication of EP3496871B1 publication Critical patent/EP3496871B1/fr
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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D7/00—Processes, other than flocking, specially adapted for applying liquids or other fluent materials to particular surfaces or for applying particular liquids or other fluent materials
    • B05D7/02—Processes, other than flocking, specially adapted for applying liquids or other fluent materials to particular surfaces or for applying particular liquids or other fluent materials to macromolecular substances, e.g. rubber
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D3/00—Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials
    • B05D3/06—Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials by exposure to radiation
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D7/00—Processes, other than flocking, specially adapted for applying liquids or other fluent materials to particular surfaces or for applying particular liquids or other fluent materials
    • B05D7/50—Multilayers
    • B05D7/52—Two layers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B44—DECORATIVE ARTS
    • B44C—PRODUCING DECORATIVE EFFECTS; MOSAICS; TARSIA WORK; PAPERHANGING
    • B44C1/00—Processes, not specifically provided for elsewhere, for producing decorative surface effects
    • B44C1/22—Removing surface-material, e.g. by engraving, by etching
    • B44C1/228—Removing surface-material, e.g. by engraving, by etching by laser radiation
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B44—DECORATIVE ARTS
    • B44C—PRODUCING DECORATIVE EFFECTS; MOSAICS; TARSIA WORK; PAPERHANGING
    • B44C3/00—Processes, not specifically provided for elsewhere, for producing ornamental structures
    • B44C3/005—Removing selectively parts of at least the upper layer of a multi-layer article
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
    • D06F34/00—Details of control systems for washing machines, washer-dryers or laundry dryers
    • D06F34/28—Arrangements for program selection, e.g. control panels therefor; Arrangements for indicating program parameters, e.g. the selected program or its progress
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24C—DOMESTIC STOVES OR RANGES ; DETAILS OF DOMESTIC STOVES OR RANGES, OF GENERAL APPLICATION
    • F24C7/00—Stoves or ranges heated by electric energy
    • F24C7/08—Arrangement or mounting of control or safety devices
    • F24C7/082—Arrangement or mounting of control or safety devices on ranges, e.g. control panels, illumination

Definitions

  • the invention relates to a method for producing a coated plastic panel, a coated plastic panel and a domestic appliance containing this coated plastic panel.
  • WO 2006/025016 A1 describes a method and an apparatus for applying a pattern.
  • the disclosure document DE 44 19 197 A1 describes a method for producing a coating having a colored decoration.
  • Domestic appliances generally have an operating panel with an operating panel, which offers the possibility of setting programs to be carried out in the domestic appliance, as well as a display of information about the execution of a selected program.
  • Household appliances are, for example, laundry treatment devices such as washing machines, dryers and washer-dryers, dishwashers, microwave ovens, ovens and blenders, coffee machines, etc.
  • Information and selected programs are generally shown on an optical display in which programs are often assigned to individual display areas by illuminating the display areas can be highlighted so that their implementation can be displayed.
  • Control panels can therefore have a very complex structure. Often exist Control panels essentially made of one or more plastics. Such control panels are also referred to herein as plastic panels.
  • the DE 10 2005 024 934 A1 describes a control panel arrangement for a household appliance with a panel base body, a transparent cover and an information carrier that represents graphically designed elements such as plain text labels, position markings, symbols and / or frame elements, the information carrier consisting of at least two carrier elements, each of which is part of the graphic elements wearing.
  • the DE 10 2007 048 222 A1 describes a touch-sensitive screen in which at least one capacitive sensor key is produced as a surface electrode on a transparent carrier plate using printing technology, the transparent Carrier plate consists in particular of glass or plastic and the surface electrodes are printed with transparent conductive varnish on the back of the transparent carrier plate opposite the operating side.
  • the DE 10 2009 045 665 A1 describes an operating device for a domestic appliance with a touch-sensitive operating surface, a display unit and a spacer frame, by means of which the operating surface and the display unit are arranged at a distance from one another, the spacer frame being formed in one piece with a housing part of a housing of the operating device.
  • the DE 10 2011 006 402 A1 describes a control panel of a household appliance, which consists of a plastic material, which can be injected into an injection mold in a plasticized state and thus forms a panel plastic, and has at least one section for receiving contact elements, which is made of a contact element film strip, which is produced by means of an injection molding process the control panel, in particular on a surface of the control panel, is correctly positioned and permanently connected to the panel plastic.
  • the DE 10 2010 028 164 A1 describes an operating device for a household appliance, with a touch-sensitive operating surface and a display unit with a housing and a circuit carrier, the housing being detachably connected to the circuit carrier.
  • the EP 1 970 479 A2 describes a control panel for controlling the operation of an apparatus, the control panel comprising: a semi-transparent cover; a film disposed behind the lid and printed with a plurality of characters or symbols; a detecting panel behind the film having a plurality of detecting members for detecting a capacitance of a human body; a control panel having a light emitting unit which directs light onto the film to display characters or symbols of the film on a rear surface of the semi-transparent cover; and a guide member having a plurality of optical paths that guides the light emitted from the light emitting unit into each of the characters or symbols of the film.
  • the DE 10 2010 063 014 A1 describes a control panel, preferably for a household appliance, in particular for a washing machine, a washer-dryer or a tumble dryer, for determining an at least partially automatic treatment process for laundry, the control panel having a cover-like design that stands out from the housing of the household appliance, and wherein a cover base body is provided, onto which a hood almost completely encompassing the cover base body can be placed.
  • the diaphragms described in the prior art are in some cases very complex in construction and can only be produced in several steps, in which case, in particular, tools placed on a desired diaphragm also have to be used.
  • control panels are provided with a coating, for example an opaque layer of lacquer, in order to display information, to keep certain parts of a household appliance invisible to a user, especially when using a transparent panel body, and / or to protect the surface of the control panel.
  • a coating for example an opaque layer of lacquer
  • the masking effort for the production of such a coated control panel can be very high in order not to impair the function of control and display elements.
  • the subject matter of the invention is thus a method for producing a coated plastic panel according to claim 1.
  • the second lacquer layer is more transparent than the first lacquer layer. This can be achieved, for example, in that the second lacquer layer is thinner than the first lacquer layer and / or is made of an optically less dense material.
  • step (a) is followed by step (a1); (a1) applying a colored plastic film to an uncoated partial surface T F of the surface of the plastic body; carried out.
  • the colored plastic film is generally designed so that it can permanently adhere to the surface of the plastic body.
  • the partial surface T C lies at least partially in the partial surface T F.
  • the partial surface T C can advantageously lie completely in the partial surface T F in step (e).
  • the coated plastic film according to the invention is illuminated from behind by one or more light sources. The colored representation of symbols etc. can then be emphasized by the lighting.
  • the uncoated partial surface T K of the surface can be partially exposed to laser radiation until a predetermined change in the optical permeability is achieved there.
  • opaque characters, symbols and other characters can then be displayed within the uncoated partial surface T K.
  • a step is carried out here “in time after” another step, this means that the step is carried out immediately or indirectly after the other step.
  • the cover film when using a cover film, in a preferred embodiment of the method according to the invention, the cover film consists of the release film.
  • the use of a cover film advantageously enables further design options.
  • a cover film which is a laminate of the peel-off film and at least one further film, wherein after step (a2) the peel-off film adheres to the residual laminate consisting of the at least one further film with an adhesive force F 1 , which is smaller than the adhesive force F 2 between the plastic body and a film lying on it and optionally the adhesive forces F n-2 between the other films, where n is the number of films in the laminate.
  • step (d1) the first and second lacquer layers and, if present, further layers along the side contour with a width of 0.2 to 1 mm, preferably 0.3 mm to 0.8 mm, in particular 0.4 mm to 0.7 mm, can be removed. It has been shown that in this way the peel-off film can be removed easily and safely with a large number of lacquer layers used.
  • the lacquer layers can be exclusively on the film or partially on the coated surface of the plastic body can be removed. It is preferred that 25 to 50% of the total removed width of the lacquer coating, ie in particular the first and second lacquer layers, are removed on the coated surface of the plastic body.
  • the plastic body is not restricted as long as there is sufficient transparency and properties adapted to the respective purpose can be realized.
  • the term “plastic body” used herein therefore means in particular that the plastic body consists essentially of plastic. Other materials such as Metals or inorganic / organic compounds can be contained in the plastic body to a certain extent.
  • the plastic component present in the plastic body can be composed of any plastic as long as there is partial transparency and the plastic is suitable for use in plastic panels.
  • the plastic body contains or consists of a plastic which is selected from the group consisting of styrene-acrylonitrile (SAN) copolymers, polymethyl methacrylate (PMMA), polycarbonate (PC) and acryl-butadiene-styrene ( ABS) copolymer.
  • SAN styrene-acrylonitrile
  • PMMA polymethyl methacrylate
  • PC polycarbonate
  • ABS acryl-butadiene-styrene copolymer
  • the cover body is a flat or curved plastic plate.
  • the sub-surfaces T C and sub-surfaces T F and / or T K lie within the surface of the plastic body. This generally means that these partial surfaces are at a certain distance from an edge of the plastic body.
  • the side contour mentioned for embodiments of the method according to the invention preferably lies within the surface of the plastic body. The side contour is thus at a distance other than zero from an edge delimitation of the plastic body.
  • the coated plastic cover generally contains operating elements for controlling a domestic appliance.
  • Such operating elements can be mechanically movable switches and / or preferably be designed to be touch-sensitive.
  • Touch-sensitive operating elements are preferably based on changes in capacity.
  • the cover film and / or the colored plastic film therefore contain sensor elements.
  • a covering film and / or colored plastic film used in embodiments of the method according to the invention can be applied in different ways, in particular by gluing or welding, regardless of whether e.g. the cover film consists only of the peel-off film or is a laminate of several films.
  • a self-adhesive cover film and / or a self-adhesive colored plastic film can be used.
  • a self-adhesive film has an adhesive on the sticky side, which is preferably a hotmelt pressure-sensitive adhesive.
  • a film that is not self-adhesive for example, can also be attached, which is then applied to the plastic body, in particular by ultrasonic welding or laser welding.
  • a self-adhesive film is preferably used in steps (a1) and / or (a2).
  • Cover film and / or colored plastic film generally contain a thermoplastic material such as e.g. PMMA, polyethylene terephthalate and / or polycarbonate or consist of these.
  • the cover film and / or colored plastic film preferably contain polyethylene terephthalate and / or polycarbonate or consist of polyethylene terephthalate and / or polycarbonate.
  • the plastics used can be the same for both cases, so that the terms "cover film” and "colored plastic film” used herein are aimed in particular at the intended use and the associated special designs.
  • foils made from the aforementioned materials can adapt well to curved or differently shaped bodies and are at the same time inexpensive to manufacture. For graphic design, these can also be printed without distortion before being attached to the plastic body in a flat state.
  • IR laser radiation is generally used.
  • the composition of the lacquer layers is not limited; a colored lacquer is preferably used in each case, which can be selected in accordance with the intended use, for example providing an opaque cover layer or a special design layer.
  • the application of the lacquer layers in steps (b) and (c) is therefore preferably the application of one colored lacquer in each case.
  • a colored varnish is generally initially in the form of a more or less viscous liquid, which is produced by a customary printing technique, e.g. Screen printing is applied. It is therefore generally first coated with a curable colored lacquer.
  • the individual paint layers are then hardened in a further step, preferably successively.
  • the expression “application of a layer of lacquer” here includes the steps of applying a more or less viscous lacquer and its subsequent hardening.
  • a curing step will generally depend on the type of lacquer used.
  • a curing step can thus be heating or irradiation, for example with UV radiation. UV radiation generally brings about a crosslinking of components of a paint layer.
  • removal of a lacquer layer means in particular the removal of a hardened lacquer layer.
  • One or more films of the cover film and / or colored plastic film used in embodiments of the method according to the invention can contain operating elements for operating, for example a domestic appliance, and display elements for displaying operating states, for example a domestic appliance.
  • One or more such information carrier foils which contain graphic elements such as plain text labels, position markings, symbols and / or frame elements, can easily be applied to the plastic body according to the invention by remaining on the plastic body after the foil has been attached, for example when a peel-off foil is peeled off.
  • An adjustment of a control panel, as which the coated plastic panel is used in particular, to an equipment and / or country variant of a domestic appliance can be done inexpensively, since only one film may need to be replaced.
  • numerous variants of control units and thus control panels can be created. This is because an information-bearing film, which, for example, provides information in different languages, can be changed by simply exchanging a film for another printed film.
  • the number of foils to be provided for forming differently designed information-bearing foils can be limited by a suitable choice of the graphic elements for each foil.
  • the foils used in embodiments of the method according to the invention can therefore in particular have a plurality of foils, that is to say used as laminates, so that an adaptation to different languages can be made.
  • certain display elements such as symbols can be arranged on a slide, while language elements are arranged on a separate slide. In particular, however, it is also possible for both to be on the same film.
  • a specific color of the operating unit can be set by inserting a film having the specific color or by providing a layer of lacquer having the specific color.
  • an inserted cover film contains sensor elements, which can also be referred to as "sensor buttons", in parts remaining on the plastic body, that is not in the peel-off film.
  • sensor elements which can also be referred to as "sensor buttons”
  • a film containing sensor elements which can also be referred to as a sensor film, can be connected directly or indirectly to the plastic body.
  • sensor elements as used herein is to be interpreted broadly. In addition to touch-sensitive keys, this also includes touch-sensitive touch elements with analog input, which are generally referred to as “sliders” or “wheels”.
  • the sensor elements are generally designed as sensor surfaces or sensor electrodes made of a suitable material.
  • the sensor element used in a sensor film can be based on various measurement principles, such as, for example, a measurement of the electrical resistance or the electrical capacitance.
  • An electrical capacitance is preferably measured, so that the sensor elements are preferably capacitive sensors (sensor electrodes).
  • the sensor electrodes are made of a suitable electrically conductive material, the change in capacitance of which can be determined and evaluated when touched. Suitable electrically conductive materials are, for example, transparent semiconductor oxides or else electrically conductive organic materials such as electrically conductive organic polymers.
  • the sensor elements and electrical conductor tracks can be applied to the sensor film in different ways.
  • at least one capacitive sensor electrode and the electrical conductor tracks are printed on the sensor film.
  • organic conductive structures can also be used on the sensor foils used in preferred embodiments.
  • the at least one capacitive sensor and / or the electrical conductor tracks comprise or consist of an intrinsically conductive organic polymer or a metallic conductive material.
  • the aforementioned operating symbols and characters can also be arranged on or in the sensor film, in particular glued or printed on.
  • foils which have haptic elements which are specific in relation to their location and which can advantageously be used for differentiating and / or better recognizing touch-sensitive sensor elements during operation.
  • the coating techniques for the films are not particularly limited as long as sufficient adhesion is ensured.
  • Preferred are printing techniques that again are not particularly limited. Printing is preferably carried out by screen printing.
  • the invention also relates to a coated plastic panel according to claim 10.
  • an at least partially transparent film with sensor elements and an electrical conductive structure is arranged on the plastic body.
  • An electrical conductive structure also includes, in particular, electrical circuits.
  • electrical connections can also be arranged on such a sensor film.
  • the invention also relates to a domestic appliance containing this coated plastic panel, in particular a domestic appliance with a program control and a plastic panel described herein.
  • the domestic appliance is not restricted according to the invention.
  • the household appliance is, however, preferably selected from the group consisting of laundry treatment appliances such as washing machines, dryers and washer-dryers, dishwashers, refrigerators, microwave appliances, ovens, stoves, blenders and coffee machines.
  • the invention has several advantages.
  • the invention enables a large number of different control panels to be produced in a simple manner.
  • only the foils and / or lacquer layers to be applied have to be appropriately designed and selectively removed, in particular by means of IR laser radiation, the
  • the present invention enables the position of operating symbols and characters to be varied widely.
  • a complex opening of the cover base body, ie the plastic body, is not necessary in order to attach an operating unit.
  • the invention enables a reduction in masking costs when painting through the use of layers of paint that can be removed by IR laser radiation, in embodiments also through the use of a removable or non-removable plastic film, referred to herein as colored plastic film and cover film.
  • a quick variant change and a quick change of display windows is possible.
  • the expenditure for tool parts for plastic components is lower and easier to control.
  • savings can be made by eliminating various process steps such as masking, printing, cleaning, etc.
  • Fig. 1 shows a plan view of a coated, coated plastic panel 1 obtained according to the invention according to a first non-limiting embodiment.
  • a coating-free partial surface T K 13 is located within the surface 4, to which a cover film with a peel-off film was attached in a step (a2) while an embodiment of the method according to the invention was being carried out.
  • the coating applied thereon was removed from the first lacquer layer and the second lacquer layer together with the release film.
  • the partial surface T K 13 is located completely within the surface 4.
  • Fig. 2 shows a side view of a coated plastic cover 1 obtained after carrying out an embodiment of the method according to the invention
  • the plastic panel 1 shown has on a surface 4 of a plastic body 2 a first lacquer layer 3 and a second lacquer layer 5, which here are an opaque coating of at least one colored lacquer.
  • a laminate ("residual laminate", after removal of a peel-off film that is no longer present here) from a first film 14, which is attached directly to the plastic body 2 and can therefore also be referred to as a screen film, and a second film 15, in which sensor elements 16 are located as part of a touch-sensitive operating device and which can therefore also be referred to as a sensor film, attached.
  • the first foil 14 there are printed operating symbols 17 and characters 18.
  • a coated plastic cover 1 is then applied to step (a) of the method according to the invention in a step (a1) a colored plastic film 8, for example colored red, on an uncoated partial surface T F 9 of the surface 4 of the plastic body (2).
  • steps (b) and (c) of the method according to the invention a first lacquer layer 3 and a second lacquer layer 5 have also been applied.
  • these lacquer layers are still completely present on the colored plastic film 8 for the sake of a simplified illustration.
  • Fig. 2 also shown how the first lacquer layer 3 and the second lacquer layer 5 can be removed in a targeted manner by laser radiation, in particular IR radiation. Such a step is also known as laser etching.
  • Fig. 2 namely, the case is shown that in step (d) of the method according to the invention the second lacquer layer 5 is removed within a coated partial surface T C 6.
  • the first lacquer layer 3 is also removed at least at some points at which the second lacquer layer 5 had already been removed.
  • the first lacquer layer 3 is thus removed in a lower surface T C1 7 of the partial surface T C 6.
  • Fig. 3 shows a side view of a coated plastic cover after carrying out steps (b) and (c) of the method according to the invention.
  • cover film 10 used in one embodiment of the method according to the invention can be seen. That is, in addition to the arrangement in Fig. 2 a peel-off film 11, on which a coating 3, 5 from the first lacquer layer 3 and the second lacquer layer 5 is located, is applied to the remaining laminate from the foils 14 and 15.
  • step (d) of the method according to the invention ie the removal of the second lacquer layer 5 applied in step (c), and step (e)

Claims (12)

  1. Procédé de fabrication d'un panneau de matière plastique muni d'un revêtement (1) destiné à un appareil ménager, comprenant les étapes suivantes:
    (a) fourniture d'un corps de matière plastique (2) constitué d'une matière plastique au moins partiellement transparente, le corps de matière plastique (2) étant une plaque de matière plastique plate ou pliée;
    (b) application d'une première couche de peinture bloquant la lumière (3) à la surface (4) du corps de matière plastique (2);
    (c) application d'une deuxième couche de peinture (5) sur la première couche de peinture bloquant la lumière (3) de l'étape (b), la deuxième couche de peinture (5) étant plus transparente à la lumière que la première couche de peinture (3); et
    (d) élimination de la deuxième couche de peinture (5) dans une surface partielle TC (6) munie d'un revêtement, de la surface (4), au moyen d'un rayonnement laser infrarouge, dans lequel, consécutivement à l'étape (a), une étape (a1)
    (a1) d'application d'une feuille de matière plastique colorée (8) à la surface partielle non munie d'un revêtement TF (9), de la surface (4), du corps de matière plastique (2) est réalisée;
    dans lequel, consécutivement à l'étape (a) ou (a1), une étape (a2);
    (a2) d'application d'une feuille de recouvrement (10), la feuille de recouvrement (10) contenant une feuille pelliculable (11) et comprenant un profil latéral (12) à la surface partielle non munie d'un revêtement TK (13), de la surface (4), du corps de matière plastique (2);
    et chronologiquement après l'étape (c), des étapes (d1) et (d2);
    (d1) d'élimination de la première couche de peinture (3) et de la deuxième couche de peinture (5) appliquées aux étapes (b) et (c) le long du profil latéral (12) au moyen d'un rayonnement laser IR; et
    (d2) de retrait de la feuille pelliculable (11)
    sont réalisées;
    la feuille de recouvrement (10) et/ou la feuille de matière plastique colorée (8) contenant des éléments de détection (16).
  2. Procédé selon la revendication 1, caractérisé en ce qu'une étape (e);
    (e) d'élimination de la première couche de peinture (3) dans une surface inférieure TC1 (7) de la surface partielle TC (6) est réalisée au moyen d'un rayonnement laser infrarouge.
  3. Procédé selon la revendication 1 ou 2, caractérisé en ce qu'à l'étape (e), la surface partielle TC (6) est située au moins en partie dans la surface partielle TF (9).
  4. Procédé selon la revendication 3, caractérisé en ce qu'à l'étape (e), la surface partielle TC (6) est située entièrement dans la surface partielle TF (9).
  5. Procédé selon l'une des revendications précédentes, caractérisé en ce que chronologiquement après l'étape (d2), une étape (d3);
    (d3) d'attaque de la surface partielle non munie d'un revêtement TK (13), de la surface (4), en partie avec un rayonnement laser, jusqu'à la réalisation d'une modification prédéfinie de la transparence optique, est réalisée.
  6. Procédé selon l'une des revendications précédentes, caractérisé en ce que la feuille de recouvrement (10) est un stratifié constitué de la feuille pelliculable (11) et d'au moins une autre feuille (14,15), après l'étape (a2), la feuille pelliculable (11) adhérant au stratifié résiduel constitué d'au moins une autre feuille (14,15), présentant un pouvoir adhésif F1 inférieur au pouvoir adhésif F2 entre le corps de matière plastique (2) et une feuille (14,15) qui lui est adjacente, et le cas échéant les pouvoirs adhésifs Fn-2 entre les autres feuilles (14,15), n étant le nombre des feuilles dans le stratifié.
  7. Procédé selon l'une des revendications 1 à 6, caractérisé en ce qu'à l'étape (d1), la première couche de peinture (3) et la deuxième couche de peinture (5) sont éliminées le long du profil latéral (12) dans une largeur de 0,2 à 1 mm.
  8. Procédé selon l'une des revendications 1 à 7, caractérisé en ce que le corps de matière plastique contient une matière plastique ou en est constitué, laquelle est sélectionnée parmi le groupe qui comprend le copolymère de styrène-acrylonitrile(SAN), le polyméthacrylate de méthyle (PMMA), le polycarbonate (PC) et le copolymère acrylo-butadiène-styrène (ABS).
  9. Procédé selon l'une des revendications 1 à 8, caractérisé en ce que les surfaces partielles TC (6), ainsi que les surfaces partielles TF (9) et/ou TK (13) sont situées à l'intérieur de la surface (4) du corps de matière plastique (2).
  10. Panneau de matière plastique muni d'un revêtement (1) destiné à un appareil ménager, qu'on obtient par un procédé comprenant les étapes suivantes:
    (a) fourniture d'un corps de matière plastique (2) constitué d'une matière plastique au moins partiellement transparente, le corps de matière plastique (2) étant une plaque de matière plastique plate ou pliée;
    (b) application d'une première couche de peinture bloquant la lumière (3) à la surface (4) du corps de matière plastique (2);
    (c) application d'une deuxième couche de peinture (5) sur la première couche de peinture bloquant la lumière (3) de l'étape (b), la deuxième couche de peinture (5) étant plus transparente à la lumière que la première couche de peinture (3); et
    (d) élimination de la deuxième couche de peinture (5) dans une surface partielle TC (6) munie d'un revêtement, de la surface (4), au moyen d'un rayonnement laser infrarouge, dans lequel, consécutivement à l'étape (a), une étape (a1):
    (a1) d'application d'une feuille de matière plastique colorée (8) à la surface partielle non munie d'un revêtement TF (9), de la surface (4), du corps de matière plastique (2) est réalisée;
    dans lequel, consécutivement à l'étape (a) ou (a1), une étape (a2);
    (a2) d'application d'une feuille de recouvrement (10), la feuille de recouvrement (10) contenant une feuille pelliculable (11) et comprenant un profil latéral (12) à la surface partielle non munie d'un revêtement TK (13), de la surface (4), du corps de matière plastique (2);
    et chronologiquement après l'étape (c), des étapes (d1) et (d2);
    (d1) d'élimination de la première couche de peinture (3) et de la deuxième couche de peinture (5) appliquées aux étapes (b) et (c) le long du profil latéral (12) au moyen d'un rayonnement laser IR; et
    (d2) de retrait de la feuille pelliculable (11)
    sont réalisées;
    la feuille de recouvrement (10) et/ou la feuille de matière plastique colorée (8) contenant des éléments de détection (16).
  11. Appareil ménager comprenant le panneau de matière plastique muni d'un revêtement (1) selon la revendication 10.
  12. Appareil ménager selon la revendication 11, caractérisé en ce qu'il est sélectionné parmi le groupe composé des appareils de traitement du linge comme des machines à laver, des séchoirs et des machines à laver avec sèche-linge, des lave-vaisselle, des appareils frigorifiques, des appareils à micro-ondes, des fours de cuisson, des cuisinières, des appareils mixeurs et des machines à café.
EP17743305.9A 2016-08-08 2017-07-18 Procédé de fabrication d'un panneau en matière plastique muni d'un revêtement, panneau en matière plastique et appareil ménager contenant ce panneau en matière plastique Active EP3496871B1 (fr)

Priority Applications (1)

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PL17743305T PL3496871T3 (pl) 2016-08-08 2017-07-18 Sposób wytwarzania powlekanej blendy z tworzywa sztucznego, blenda z tworzywa sztucznego i urządzenie gospodarstwa domowego zawierające taką blendę

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DE102016214644.0A DE102016214644A1 (de) 2016-08-08 2016-08-08 Verfahren zur Herstellung einer beschichteten Kunststoffblende, Kunststoffblende und diese Kunststoffblende enthaltendes Hausgerät
PCT/EP2017/068109 WO2018028950A1 (fr) 2016-08-08 2017-07-18 Procédé de fabrication d'un panneau en matière plastique muni d'un revêtement, panneau en matière plastique et appareil ménager contenant ce panneau en matière plastique

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EP (1) EP3496871B1 (fr)
CN (1) CN109562411B (fr)
DE (1) DE102016214644A1 (fr)
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WO (1) WO2018028950A1 (fr)

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Also Published As

Publication number Publication date
EP3496871A1 (fr) 2019-06-19
CN109562411A (zh) 2019-04-02
PL3496871T3 (pl) 2021-03-08
DE102016214644A1 (de) 2018-02-08
WO2018028950A1 (fr) 2018-02-15
CN109562411B (zh) 2021-09-28

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