FR2710006A1 - Method of decorating a part made of plastic - Google Patents

Method of decorating a part made of plastic Download PDF

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Publication number
FR2710006A1
FR2710006A1 FR9311128A FR9311128A FR2710006A1 FR 2710006 A1 FR2710006 A1 FR 2710006A1 FR 9311128 A FR9311128 A FR 9311128A FR 9311128 A FR9311128 A FR 9311128A FR 2710006 A1 FR2710006 A1 FR 2710006A1
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FR
France
Prior art keywords
decorative element
mold
face
decorative
mould
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
FR9311128A
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French (fr)
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FR2710006B1 (en
Inventor
Desjobert Xavier
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.)
AMS EUROP
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AMS EUROP
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Publication date
Application filed by AMS EUROP filed Critical AMS EUROP
Priority to FR9311128A priority Critical patent/FR2710006B1/en
Publication of FR2710006A1 publication Critical patent/FR2710006A1/en
Application granted granted Critical
Publication of FR2710006B1 publication Critical patent/FR2710006B1/en
Anticipated expiration legal-status Critical
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
    • B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
    • B29C45/14—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor incorporating preformed parts or layers, e.g. injection moulding around inserts or for coating articles
    • B29C45/14688—Coating articles provided with a decoration
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
    • B29C45/14—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor incorporating preformed parts or layers, e.g. injection moulding around inserts or for coating articles
    • B29C45/14778—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor incorporating preformed parts or layers, e.g. injection moulding around inserts or for coating articles the article consisting of a material with particular properties, e.g. porous, brittle
    • B29C45/14811—Multilayered articles

Abstract

Method of decorating a part (1) based on plastic and made by injection moulding. A decorative element (2) is first placed in the mould which is subsequently closed. This decorative element (2) is thin, self-supporting, can be deformed perpendicularly to its plane, and is cut out such that it can be deformed and applied flat, without wrinkling, onto the internal face of a female part of the mould; the material making up the part is injected into the mould and, once the part has been made in this way incorporating the decorative element, it is removed from the mould which is opened for this purpose. The decorative element (2) used is a sheet of coated paper with a concealed shiny face (3) on one side, which is in contact with the plastic, and on the other side a matt face (4) including a decorative design in the form of a powder (5) of one or more minerals with a diluent, this face (4) being calendered, covered with an adhesive (10) and with a polypropylene film (7).

Description

L'invention concerne des perfectionnements apportés au procédé de décoration d'une pièce à base de matière plastique portant un insert décoratif et aux pièces ainsi injectées. The invention relates to improvements made to the method of decorating a plastic-based part carrying a decorative insert and to the parts thus injected.

On connaît déjà un procédé de décoration d'une pièce à base de matière plastique réalisée par injection dans un moule. There is already known a process for decorating a plastic-based part produced by injection into a mold.

Dans ce procédé, on réalise les étapes suivantes
- avec le moule à l'état ouvert, on fixe localement et de façon amovible à une partie mâle d'injection de celui-ci un élément décoratif mince, en forme de feuille, autoportant, déformable perpendiculairement à son plan, découpé de manière à pouvoir être déformé et appliqué à plat, sans pli, sur la face interne d'une partie femelle du moule
- puis on fait coopérer les parties mâle et femelle pour amener le moule à l'état fermé
- puis, le moule étant à l'état fermé, on injecte progressivement dans le moule la matière constitutive de la pièce, on remplit le moule, on déplace et on déforme l'élément décoratif avec le flux de matière injectée pour le détacher de la partie mâle et l'appliquer à plat en général sur la face interne de la partie femelle
- puis, une fois la pièce réalisée, on amène le moule à l'état ouvert et on éjecte la pièce du moule.In this process, the following steps are carried out
- With the mold in the open state, a thin decorative element, in the form of a sheet, self-supporting, deformable perpendicular to its plane, is fixed locally and removably to a male injection part thereof. be able to be deformed and applied flat, without folds, on the internal face of a female part of the mold
- then the male and female parts are made to cooperate to bring the mold to the closed state
- Then, the mold being in the closed state, the constituent material of the part is gradually injected into the mold, the mold is filled, the decorative element is moved and deformed with the flow of injected material to detach it from the male part and apply it generally flat on the internal face of the female part
- Then, once the part has been produced, the mold is brought to the open state and the part is ejected from the mold.

Ce procédé permet de réaliser une pièce dans lequel l'élément décoratif en question est inclus, la jonction entre eux étant lisse. This process makes it possible to produce a room in which the decorative element in question is included, the junction between them being smooth.

Un tel procédé est décrit notamment dans le document FR-A-91 03 213. On a constaté dans la pratique un certain nombre de problèmes notamment de cloquage de l'élément décoratif ou de passage de la matière plastique à la périphérie de l'élément décoratif. Such a method is described in particular in document FR-A-91 03 213. A number of problems have been found in practice, in particular the blistering of the decorative element or the passage of the plastic material at the periphery of the element decorative.

L'invention a donc pour but de remédier à ces inconvénients. The invention therefore aims to remedy these drawbacks.

Elle propose en conséquence un procédé du type précédemment décrit dans lequel on met en oeuvre, comme élément décoratif, une feuille en papier couché ayant une face brillante cachée, dirigée vers et en contact avec la matière plastique et comportant, sur sa face opposée mate, un décor sous la forme d'une poudre d'un ou plusieurs minéraux avec un liant, calandrée, revêtue d'une colle et d'un pelliculage en polypropylène. It therefore proposes a method of the type previously described in which a coated paper sheet is used as a decorative element having a glossy hidden face, directed towards and in contact with the plastic material and comprising, on its mat opposite face, a decoration in the form of a powder of one or more minerals with a binder, calendered, coated with an adhesive and a polypropylene coating.

Selon une autre caractéristique, l'élément décoratif est découpé au moyen d'un outil de coupe oeuvrant à partir de la face mate vers la face brillante. According to another characteristic, the decorative element is cut by means of a cutting tool working from the matt side towards the shiny side.

L'invention concerne également une pièce injectée obtenue par une mise en oeuvre du procédé. The invention also relates to an injected part obtained by implementing the method.

L'invention sera mieux comprise grâce à la description qui suivra en référence à la figure unique annexée qui est une vue schématique en coupe par un plan transversal illustrant schématiquement et partiellement une pièce injectée obtenue par une mise en oeuvre du procédé selon l'invention. The invention will be better understood from the description which follows with reference to the single appended figure which is a schematic sectional view through a transverse plane schematically and partially illustrating an injected part obtained by implementing the method according to the invention.

L'invention concerne donc un procédé de décoration d'une pièce 1 à base de matière plastique réalisée par injection dans un moule, cette pièce 1 comportant un élément décoratif inclus. The invention therefore relates to a method of decorating a part 1 based on plastic material produced by injection into a mold, this part 1 comprising a decorative element included.

Le procédé est du type de celui objet du document
FR-A-91 03 213.The process is of the type described in the document
FR-A-91 03 213.

Dans ce procédé, on place d'abord dans le moule amené ultérieurement à l'état fermé, un élément décoratif. In this process, a decorative element is first placed in the mold brought later in the closed state.

On injecte ensuite la matière constitutive de la pièce dans le moule. Et, une fois la pièce ainsi réalisée, avec l'élément décoratif 2 inclus dedans, on ejecte la pièce du moule ouvert à cet effet.The constituent material of the part is then injected into the mold. And, once the part thus produced, with the decorative element 2 included therein, the part is ejected from the mold opened for this purpose.

L'élément décoratif 2 se présente sous la forme d'une feuille mince, autoportante, déformable perpendiculairement à son plan, découpée de manière à pouvoir être déformée et appliquée à plat, sans pli, sur la face interne d'une partie femelle du moule. The decorative element 2 is in the form of a thin, self-supporting sheet, deformable perpendicular to its plane, cut so as to be able to be deformed and applied flat, without folds, to the internal face of a female part of the mold. .

Selon l'invention, on met en oeuvre comme élément décoratif, une feuille en papier couché, ayant une face brillante 3 cachée, dirigée vers et en contact avec la matière plastique et comportant, sur sa face opposée mate 4 un décor sous la forme d'une poudre 5 d'un ou plusieurs minéraux avec un liant, calendrée, revêtue d'une colle 6 et d'un pelliculage 7 en polypropylène. According to the invention, a coated sheet of paper is used as a decorative element, having a glossy side 3 hidden, directed towards and in contact with the plastic material and comprising, on its mat opposite face 4, a decoration in the form of 'A powder 5 of one or more minerals with a binder, calendared, coated with an adhesive 6 and a film coating 7 made of polypropylene.

Selon une caractéristique supplémentaire correspondant à une réalisation ayant donné d'excellents résultats, le pelliculage 7 a une épaisseur de l'ordre de 5 p.  According to an additional characteristic corresponding to an embodiment having given excellent results, the lamination 7 has a thickness of the order of 5 p.

Enfin, selon une autre caractéristique, l'élément décoratif 2 est découpé au moyen d'un outil de coupe oeuvrant à partir de face mate 4 vers la face brillante 3 c'est-à-dire dans le sens de la flèche F représentée sur le dessin. Finally, according to another characteristic, the decorative element 2 is cut by means of a cutting tool working from the mat face 4 towards the shiny face 3, that is to say in the direction of the arrow F shown on the drawing.

La couche de colle 6 réagit et maintient en permanence le pelliculage 7 sur le décor réalisé à partir de la poudre 5. Le pelliculage 7 est mis en place par une légère pression sur la feuille de papier du côté de sa face mate 4, après enduction de colle. The layer of adhesive 6 reacts and permanently maintains the film coating 7 on the decoration produced from the powder 5. The film coating 7 is put in place by light pressure on the sheet of paper on the side of its mat face 4, after coating glue.

On constate que la mise en oeuvre d'un tel élément décoratif permet d'éviter les migrations non souhaitées de la matière plastique et évite aussi l'infiltration de cette matière plastique à la périphérie de l'élément décoratif. It can be seen that the use of such a decorative element makes it possible to avoid unwanted migrations of the plastic material and also prevents the infiltration of this plastic material at the periphery of the decorative element.

La mise en oeuvre de l'outil de coupe dans le sens de coupe mentionné permet de former, à la périphérie de l'élément décoratif 2, une sorte de joint avec la matière plastique.  The implementation of the cutting tool in the mentioned cutting direction makes it possible to form, at the periphery of the decorative element 2, a kind of seal with the plastic.

Claims (4)

R E V E N D I C A T I O N8R E V E N D I C A T I O N8 1. Procédé de décoration d'une pièce (1) à base de matière plastique réalisée par injection dans un moule dans lequel on place d'abord dans le moule amené ultérieurement à l'état fermé, un élément décoratif (2), mince, autoportant, déformable perpendiculairement à son plan, découpé de manière à pouvoir être déformé et appliqué à plat, sans pli, sur la face interne d'une partie femelle du moule ; on injecte ensuite la matière constitutive de la pièce dans le moule et une fois la pièce ainsi réalisée avec l'élément décoratif inclus dedans on l'éjecte du moule ouvert à cet effet, caractérisé par le fait qu'on met en oeuvre, comme élément décoratif (2), une feuille en papier couché ayant une face brillante (3), cachée, dirigée vers et en contact avec la matière plastique et comportant sur une face opposée mate (4) un décor sous la forme d'une poudre (5) d'un ou plusieurs minéraux avec un liant, calendrée, revêtue d'une colle (10) et d'un pellliculage (7) en polypropylène. 1. A method of decorating a part (1) based on plastic material produced by injection into a mold in which a thin decorative element (2) is first placed in the mold brought later in the closed state, self-supporting, deformable perpendicular to its plane, cut so as to be able to be deformed and applied flat, without folds, to the internal face of a female part of the mold; the constituent material of the part is then injected into the mold and once the part thus produced with the decorative element included therein, it is ejected from the mold open for this purpose, characterized in that it is used as an element decorative (2), a coated paper sheet having a glossy side (3), hidden, directed towards and in contact with the plastic material and comprising on a mat opposite face (4) a decoration in the form of a powder (5 ) one or more minerals with a calendar binder, coated with an adhesive (10) and a film-coating (7) made of polypropylene. 2. Procécé selon la revendication 1, caractérisé par le fait que le pelliculage (7) a une épaisseur de l'ordre de 5 p.  2. Process according to claim 1, characterized in that the film coating (7) has a thickness of the order of 5 p. 3. Procédé selon l'une quelconque des revendications 1 et 2, caractérisé par le fait l'élément décoratif (2) est découpé au moyen d'un outil de coupe oeuvrant à partir de la face mate (4) vers la face brillante (3). 3. Method according to any one of claims 1 and 2, characterized in that the decorative element (2) is cut by means of a cutting tool working from the mat face (4) to the shiny face ( 3). 4. Pièce injectée obtenue par une mise en oeuvre du procédé selon l'une quelconque des revendications 1 à 3.  4. Injected part obtained by implementing the method according to any one of claims 1 to 3.
FR9311128A 1993-09-17 1993-09-17 Method of decorating a plastic part. Expired - Fee Related FR2710006B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR9311128A FR2710006B1 (en) 1993-09-17 1993-09-17 Method of decorating a plastic part.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR9311128A FR2710006B1 (en) 1993-09-17 1993-09-17 Method of decorating a plastic part.

Publications (2)

Publication Number Publication Date
FR2710006A1 true FR2710006A1 (en) 1995-03-24
FR2710006B1 FR2710006B1 (en) 1995-12-08

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FR9311128A Expired - Fee Related FR2710006B1 (en) 1993-09-17 1993-09-17 Method of decorating a plastic part.

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Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2107979A1 (en) * 1970-09-25 1972-05-12 Pictorial Productions
FR2150209A1 (en) * 1971-08-20 1973-04-06 Pictorial Productions Reflecting plastic mouldings prodn - by injection moulding thermoplastic material in mould contg reflecting metallised plastic
JPS5869015A (en) * 1981-10-22 1983-04-25 Oji Yuka Gouseishi Kk Method of bonding label
FR2523042A1 (en) * 1982-03-11 1983-09-16 Beugin Jean Resin covered labels laminated into surface of moulding - for permanent markings opt. textured to inhibit subsequent copying
WO1992016349A1 (en) * 1991-03-15 1992-10-01 Ams Europe Method for decorating a part fabricated by injection and decorated part thus obtained

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2107979A1 (en) * 1970-09-25 1972-05-12 Pictorial Productions
FR2150209A1 (en) * 1971-08-20 1973-04-06 Pictorial Productions Reflecting plastic mouldings prodn - by injection moulding thermoplastic material in mould contg reflecting metallised plastic
JPS5869015A (en) * 1981-10-22 1983-04-25 Oji Yuka Gouseishi Kk Method of bonding label
FR2523042A1 (en) * 1982-03-11 1983-09-16 Beugin Jean Resin covered labels laminated into surface of moulding - for permanent markings opt. textured to inhibit subsequent copying
WO1992016349A1 (en) * 1991-03-15 1992-10-01 Ams Europe Method for decorating a part fabricated by injection and decorated part thus obtained

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN vol. 7, no. 163 (M - 229)<1308> 16 July 1983 (1983-07-16) *

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FR2710006B1 (en) 1995-12-08

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