EP0930977A1 - Procede de decoration - Google Patents

Procede de decoration

Info

Publication number
EP0930977A1
EP0930977A1 EP96933524A EP96933524A EP0930977A1 EP 0930977 A1 EP0930977 A1 EP 0930977A1 EP 96933524 A EP96933524 A EP 96933524A EP 96933524 A EP96933524 A EP 96933524A EP 0930977 A1 EP0930977 A1 EP 0930977A1
Authority
EP
European Patent Office
Prior art keywords
decal
decorative material
protective layer
layer
adhesive
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP96933524A
Other languages
German (de)
English (en)
Inventor
Timothy Barrett Evans
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.)
Waveney Plastics Ltd
Original Assignee
Waveney Plastics Ltd
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 Waveney Plastics Ltd filed Critical Waveney Plastics Ltd
Publication of EP0930977A1 publication Critical patent/EP0930977A1/fr
Withdrawn legal-status Critical Current

Links

Classifications

    • 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
    • B44C1/16—Processes, not specifically provided for elsewhere, for producing decorative surface effects for applying transfer pictures or the like
    • B44C1/165—Processes, not specifically provided for elsewhere, for producing decorative surface effects for applying transfer pictures or the like for decalcomanias; sheet material therefor
    • B44C1/17—Dry transfer
    • B44C1/1712—Decalcomanias applied under heat and pressure, e.g. provided with a heat activable adhesive
    • B44C1/1716—Decalcomanias provided with a particular decorative layer, e.g. specially adapted to allow the formation of a metallic or dyestuff layer on a substrate unsuitable for direct deposition
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41M—PRINTING, DUPLICATING, MARKING, OR COPYING PROCESSES; COLOUR PRINTING
    • B41M5/00—Duplicating or marking methods; Sheet materials for use therein
    • B41M5/025—Duplicating or marking methods; Sheet materials for use therein by transferring ink from the master sheet
    • B41M5/035—Duplicating or marking methods; Sheet materials for use therein by transferring ink from the master sheet by sublimation or volatilisation of pre-printed design, e.g. sublistatic
    • 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
    • B29C2045/14721—Coating articles provided with a decoration decorations transferred by diffusion or sublimation

Definitions

  • This invention concerns a method of decoration, particularly but not exclusively a method of decorating items made of certain plastics materials, and/or a method of decoration using decals.
  • Difficulties can be encountered when decorating many different items and materials. For example, with items such as plastics material baths, bath panels or the like, it would often be desirable to apply a decoration to the item. Such items being conventionally made of plastics materials such as acrylic. However, using conventional techniques it is difficult to provide a decoration on such material which is durable and would not be worn away during use and/or cleaning of the item.
  • Such items are generally provided with a protective layer of a plastics material film such as polyethylene.
  • This layer is applied during manufacture of the plastics material, usually into sheets of material and is desirably only removed at the latest possible opportunity for example after a bath has been installed in a building.
  • a method of decoration comprising applying a decorative material onto a surface of a member, and heating the member such that at least part of the decorative ma erial diffuses into the member whilst still being visible through said surface.
  • the member is heated subsequently to application of the decorative material thereon.
  • the decorative material is preferably applied onto a remo able protective layer on the member, and during said heating at least part of the decorative material passes through the layer to diffuse into the member.
  • the protective layer preferably comprises a plastics material film such as polyethylene.
  • the protective layer may comprise paper, which may be coated with for example polypropylene or si licone .
  • the member is preferably made of a plastics material such as an acrylic, polypropylene or ABS ( aery loni t ri 1 e butadiene styrene).
  • the subsequent heating of the member may take place during forming of an article from the member.
  • the article may be formed by vacuum forming.
  • the decorative material may be applied to a member during injection moulding thereof, such that the heating is provided by the moulding process .
  • the member may alternativel comprise other materials, for example wood or steel, and said materials may be provided with a coating which may comprise a plastics material, such as for example powder coated steel .
  • the decorative material may be applied in the form of a decal.
  • the decal is preferably flexible. Any backing paper for the decal is preferably removed prior to heating of the member.
  • the decal preferably includes a water soluble, pressure sensitive and/or heat sensitive adhesive engageable with the member.
  • the decal may be of the water slide type, comprising a removable backing paper or support layer releasably held on the decal by a water actuable adhesive .
  • the decal may be of the heat release type, with a first heat sensitive adhesive on the design layer for adhering the decal to an article to be decorated, and a further heat sensitive adhesive releasably holding a backing paper or support layer on the decal .
  • the decal may comprise a pressure sensitive adhesive on the design layer, and a further adhesive releasably holding the backing paper or support layer on the decal.
  • Said further adhesive may be water soluble.
  • no adhesive may be provided on the design layer of the decal but adhesive may be applied on to the member, preferably by spraying, prior to the decal being applied thereto.
  • the backing paper may be held on said decal by any of a heat sensitive adhesive, a water actuable adhesive, or a pressure release adhesive which permits the backing paper to be peeled off.
  • the invention also provides a decal usable in a decorative material according to any of the preceding si paragraphs.
  • the decorative material may be applied directly onto the member, by for example screen or ink jet printing.
  • the surface of the member may be prepared prior to printing, by for example application of a primer.
  • the decorative material preferably comprises one or more inks which sublime.
  • the decorative material preferably comprises inks in the form of organic dyes which are stable at the temperature the member is heated to.
  • Plasticisers may be provided in the inks, and/or where the decorative material is in the form of a decal, in the carrier layer .
  • a heat absorbing material may be provided at selective areas on the decorative material where high colour intensity is required.
  • the heat absorbing material is preferably particulate and insoluble, and may comprise carbon black.
  • the decorative material is in the form of a decal, the heat absorbing material is preferably provided in the carrier layer.
  • the invention further provides a member or article decorated by a method according to any of the preceding eighteen paragraphs.
  • Figs. 1 to 3 of the accompanying drawings respectively show diagrammatic sectional views of first, second and third decals according to, and usable in methods according to, the invention.
  • a decorated bath panel is made by the following method.
  • a sheet of acrylic with a polyethylene protective film on at least one side is mounted on a frame.
  • a decorative pattern of decals is applied onto the plastics film so as to adhere thereto, and the backing paper for the decals is removed.
  • the decals comprise a required pattern of inks and may be in the form of any of the first, second or third decals as will be hereinafter described.
  • the framed sheet is placed on a vacuum plate with the decorated side upwards.
  • Heating units are located over the top of the sheet and switched on to apply a temperature of between 130 and 220°C.
  • the particular temperature chosen depends on the grade of acrylic material used and/or the colour intensity required.
  • the bath panel thus formed still has a protective film and this protective film would usually only be removed following installation of the panel in a bathroom. Removal of the protective film with any decorative material left thereon will reveal a decoration on the bath panel which whilst visible, is not formed directly on the surface of the panel and therefore cannot be readily worn away. Following removal of the film, excess decorative materials on the bath panel can be cleaned off with a suitable solvent or detergen .
  • the drawings show three decals usable in this method.
  • the first decal 10 is of the water slide type.
  • the decal 10 comprises a conventional water slide decal paper 11.
  • a carrier layer 13 in the form of a water insoluble acrylic such as Synocryl 9123S (TM) available from Cray Valley Products.
  • a plasticiser may be provided in the carrier layer.
  • the plasticiser may comprise phthalate, adipate or other esters .
  • the layer 14 comprises organic dyes dispersed in a carrier such as an acrylic solution or emulsion.
  • the organic dyes may be in the form of inks such as Sericol Subliscreen (TM). Inks which sublime have been found to be particularly appropriate for use with this method.
  • a plasticiser may also be provided in the layer 14. Plasticisers have been found to increase colour intensity in the decorated product and assist movement/diffusion of the inks into the plastics materials and particularly through the protective layer.
  • the paper 11 would be removed from the decal 10 by sliding, using water to release the paper 11 from the layer 12. The decal 10 can then be positioned on an article with the layer 12 providing adhesion onto the article .
  • Fig. 2 shows a heat release decal 20.
  • the decal comprises a conventional decal paper 21.
  • a layer 22 of a first heat sensitive adhesive is provided on the paper 21 .
  • the layer 22 comprises: a wax such as paraffin or microcrystalline wax; a tackifier such as a rosin ester e.g. Staybelite (TM); an adhesive such as vinyl acetate e.g. Elvax (TM); and non-blocking additives such as micronised waxes.
  • a carrier layer 23 is provided above the layer 22, of a similar type to the layer 13.
  • a design layer 24 again of a similar type to the layer 14 is provided on the layer 23.
  • a heat adhesive layer 25 is provided on the layer 24.
  • the layer 25 comprises a polyethylene glycol wax with a melting point of around 60-70°C.
  • the decal 20 is heated to melt the adhesive of the layer 25.
  • the decal 20 is then placed on an article to be decorated, with the layer 25 against the article, and providing adhesion thereto.
  • the decal 20 can then be "ironed” onto the article with the further heat melting the adhesive in the layer 22 and 416
  • Fig. 3 shows a third decal 30.
  • the decal 30 comprises a decal paper 31 similar to the paper 11.
  • a release layer 32 similar to the layer 12 is provided on the paper 31.
  • a carrier layer 33 is provided on the layer 32.
  • the layer 33 may comprise modified cellulose such as cellulose acetate butyrate, or a similar layer to the layer 13 could be used.
  • a design layer 34 similar to the layer 14 is provided on the layer 33.
  • a pressure sensitive adhesive layer 35 is provided on the layer 34.
  • the pressure sensitive adhesive may comprise an adhesive such as Sericol Drystick Extra (TM).
  • the decal 30 is placed on an article to be decorated and "ironed" without heat thereonto to activate the layer 35.
  • the paper 31 can subsequently be removed using water to activate the layer 32.
  • the decal 30 it is possible to use a very thin carrier layer 33 which is advantageous as the decal 30 is required to stretch and distort during the forming process.
  • the decals 30 can be stored interleaved with silicone paper.
  • a decal (not shown) could be used without any adhesive on the design layer.
  • a decal adhesive would be applied onto the article, probably by spraying a "spray mount” type adhesive, and the decal placed onto the adhesive.
  • the backing paper may be held on by any of a heat sensitive, water actuable or pressure release adhesive, and removed accordingly. In the latter case the backing paper can simply be peeled off.
  • the i n vention can be used other than with vacuum forming.
  • a decal in a mould such that the decoration on the decal is taken up by plastics material placed into the mould, with the heat of moulding providing the required diffusion of the inks into the plastics material.
  • Heat could be applied other than during forming of an article. The heat could be applied as a separate stage. Where the decal is to be applied prior to forming of an article, a flexible decal is required.
  • Methods according to the invention can be used to decorate other materials such as for example, polypropylene or A8S.
  • the latter may be used as tubing for use for example in plumbing.
  • the decorative method may be used for providing a marking rather than an aesthetic decoration.
  • the method is usable with materials other than plastics material.
  • coated metals such as powder coated steel could be decorated.
  • Wood could also be decorated using this method with for example a plastics coating, or when uncoated for example if varnished.
  • the decorative material may be applied other than as a decal.
  • the decorative material could be applied directly by screen or ink jet printing.
  • a primer may be applied prior to printing.
  • a decorative material is applied to a protective film, the material can in many instances be applied directly onto an article to be decorated. Further the material can be applied onto a wide range of protective films, which may comprise papers.
  • the invention provides the advantage of enabling a protective layer to be maintained if required.
  • Various other modifications may also be made without departing from the scope of the invention.
  • a heat absorbing material may be provided at selective locations on the decorative material to provide enhanced colour intensity.
  • the heat absorbing material is preferably particulate and insoluble such that it does not pass through the protective layer nor into an article being decorated.
  • a suitable heat absorbing material is carbon black which in a decal could be provided in the carrier layer.

Landscapes

  • Laminated Bodies (AREA)

Abstract

Procédé permettant de décorer un article, notamment un article en matière plastique (par exemple un panneau de baignoire/douche en acrylique). Le procédé peut comprendre l'application sur l'article d'une décalcomanie (10) qui contient des encres à sublimation. Dans une autre forme d'exécution du procédé on peut appliquer directement sur l'article la matière décorative. Après l'application de la matière décorative sur l'article on peut former ce dernier à l'aide de techniques de formage sous vide ou à l'aide de techniques de moulage par injection. Dans tous les cas, la matière décorative subit une sublimation qui provoque sa diffusion (au moins partielle) dans la surface de l'article à décorer. On peut également appliquer sur l'article un film protecteur avant l'application de la matière décorative, dans ce cas cette dernière subit une sublimation à travers le film protecteur dans la surface de l'article.
EP96933524A 1996-10-08 1996-10-08 Procede de decoration Withdrawn EP0930977A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/GB1996/002471 WO1998015416A1 (fr) 1996-10-08 1996-10-08 Procede de decoration

Publications (1)

Publication Number Publication Date
EP0930977A1 true EP0930977A1 (fr) 1999-07-28

Family

ID=10788279

Family Applications (1)

Application Number Title Priority Date Filing Date
EP96933524A Withdrawn EP0930977A1 (fr) 1996-10-08 1996-10-08 Procede de decoration

Country Status (3)

Country Link
EP (1) EP0930977A1 (fr)
AU (1) AU7222596A (fr)
WO (1) WO1998015416A1 (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0995570A1 (fr) * 1998-10-13 2000-04-26 Bush Industries, Inc. Procédé pour fabriquer un article moulé par injection décoré par coloration
ITPD20070195A1 (it) * 2007-06-01 2008-12-02 Maxi Studio S R L "procedimento di decorazione di lastre in resina termoplastica"

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2147614A (en) * 1983-10-01 1985-05-15 Kenneth Porter Heat transfer printing
DE4230229A1 (de) * 1992-09-10 1994-03-17 Ge Polymertrend Gmbh Beschichtungsmittel zur Beschichtung von Substraten aus thermoplastischem Kunststoff sowie Verfahren zum Aufbringen einer Schicht aus Pulverlack auf ein thermoplastisches Kunststoffsubstrat
DE4330077C1 (de) * 1993-09-06 1995-03-16 Blizzard Gmbh Verfahren zur Gestaltung der oberen Fläche und der Seitenwandungen von Ski
CH685934A5 (de) * 1993-11-24 1995-11-15 Sicpa Holding Sa Sublimationstransferdruckverfahren.
CA2172442A1 (fr) * 1995-03-28 1996-09-29 Ronald J. Meister Methode de transfert thermique de caracteres imprimes sur un support metallique, et article portant de tels caracteres

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO9815416A1 *

Also Published As

Publication number Publication date
AU7222596A (en) 1998-05-05
WO1998015416A1 (fr) 1998-04-16

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