EP0774365B1 - Verfahren zum Dekorieren von Verbundkörpern wie Ski, Surfbretter oder Skateboards - Google Patents

Verfahren zum Dekorieren von Verbundkörpern wie Ski, Surfbretter oder Skateboards Download PDF

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Publication number
EP0774365B1
EP0774365B1 EP96115909A EP96115909A EP0774365B1 EP 0774365 B1 EP0774365 B1 EP 0774365B1 EP 96115909 A EP96115909 A EP 96115909A EP 96115909 A EP96115909 A EP 96115909A EP 0774365 B1 EP0774365 B1 EP 0774365B1
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EP
European Patent Office
Prior art keywords
woven
layer
decorating
sheet
during
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.)
Expired - Lifetime
Application number
EP96115909A
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English (en)
French (fr)
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EP0774365A1 (de
Inventor
Alain Grenetier
Philippe Renard
Valérie Rochet
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Salomon SAS
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Salomon SAS
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Anticipated expiration legal-status Critical
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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
    • A—HUMAN NECESSITIES
    • A63—SPORTS; GAMES; AMUSEMENTS
    • A63C—SKATES; SKIS; ROLLER SKATES; DESIGN OR LAYOUT OF COURTS, RINKS OR THE LIKE
    • A63C5/00—Skis or snowboards
    • A63C5/003—Structure, covering or decoration of the upper ski surface
    • 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
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41M—PRINTING, DUPLICATING, MARKING, OR COPYING PROCESSES; COLOUR PRINTING
    • B41M7/00—After-treatment of prints, e.g. heating, irradiating, setting of the ink, protection of the printed stock
    • B41M7/0027—After-treatment of prints, e.g. heating, irradiating, setting of the ink, protection of the printed stock using protective coatings or layers by lamination or by fusion of the coatings or layers
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/24—Structurally defined web or sheet [e.g., overall dimension, etc.]
    • Y10T428/24802—Discontinuous or differential coating, impregnation or bond [e.g., artwork, printing, retouched photograph, etc.]
    • Y10T428/2481—Discontinuous or differential coating, impregnation or bond [e.g., artwork, printing, retouched photograph, etc.] including layer of mechanically interengaged strands, strand-portions or strand-like strips
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/24—Structurally defined web or sheet [e.g., overall dimension, etc.]
    • Y10T428/24802—Discontinuous or differential coating, impregnation or bond [e.g., artwork, printing, retouched photograph, etc.]
    • Y10T428/24843—Discontinuous or differential coating, impregnation or bond [e.g., artwork, printing, retouched photograph, etc.] with heat sealable or heat releasable adhesive layer
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/24—Structurally defined web or sheet [e.g., overall dimension, etc.]
    • Y10T428/24802—Discontinuous or differential coating, impregnation or bond [e.g., artwork, printing, retouched photograph, etc.]
    • Y10T428/24917—Discontinuous or differential coating, impregnation or bond [e.g., artwork, printing, retouched photograph, etc.] including metal layer

Definitions

  • the invention relates to a new method of decorating a composite article. It relates more particularly to articles in the form of laminates combining different plastic and composite materials such as skis in general, surfboards, skateboards and other objects of a similar nature.
  • Sublimation is a technique well suited for decorating skis, which allows to use many different plastic supports and to print any patterns without it being necessary to subject the support to a preliminary specific preparation operation.
  • the transfer principle consists of evaporate inks contained on a backing paper in the form of extracts dry by applying heat and pressure against the support to be decorated. The process is clean, fast and free from harmful vapors or solvents.
  • the decoration is transferred to the external surface of a transparent layer covering the article to be decorated.
  • An ink gradient is formed over a few tenths of a mm from the outer surface towards the inside of the transparent layer.
  • the major drawback is that the decor is directly subject to external aggression and can be deteriorated quickly if the conditions of use of the article are severe (when the article is subject to shocks, scratches, strong UV radiation, etc.).
  • Patent application FR-A-2 620 975 also belonging to the plaintiff is distinguished from the previous one by the fact that sublimation is first performed on an opaque monolayer sheet which is then assembled by gluing on a transparent single-layer protective sheet. The set is then attached to the article by hot gluing.
  • EP-A-606 556 and EP-A-641 575 describe a method of decorating an article composite during which it is assembled hot and under pressure on the decorated side by sublimation, an opaque synthetic fiber sheet (e.g. polyamide).
  • an opaque synthetic fiber sheet e.g. polyamide
  • the transparent layer thus decorated is assembled with an opaque layer.
  • the assembly is then secured to the composite article by hot bonding.
  • the increase in temperature during bonding causes a restart migration of the inks, which then diffuse into the opaque layer. Diffusion in depth creates the aforementioned pastellization problem, which is also associated with significant lateral diffusion due to some heat creep opaque layer; which makes the final decor less clear.
  • the Applicant has provided a satisfactory solution to this problem of ink migration which is exposed in the unpublished French application n ° 95 00684. It consists in covering the transparent layer sublimated by a transparent coating of crosslinkable material and then proceed curing by crosslinking of the coating to improve its resistance to creep and its thermal stability. This process does not only have advantages.
  • the layer of crosslinkable material is preferably chosen from varnishes. It is also necessary to apply a coat of white lacquer or contrasting color over the layer of crosslinkable material.
  • the object of the present invention is to provide a solution to the problems cited above.
  • one of the goals is to offer a decoration solution by internal sublimation which is more ecological by avoiding the use of materials such than solvents, thinners and other similar products.
  • Another object of the invention is in addition to highlighting the patterns of decoration by very diverse and attractive material effects, such as example, a metallic, woven, screened background effect, etc.
  • Sublimation inks do not have the ability to migrate into different materials during the final cycle. Thus, the decor remains clean and retains its original colors. These different materials also make it possible to obtain particularly striking and varied background effects.
  • the contrast sheet is a sheet non-anodized aluminum covered on each side with a film of an olefin copolymer of the ionomer type.
  • the film acts as a bonding interface and makes the aluminum compatible with bonding with most of the substrates with which it is intended to adhere. It also serves as protection against oxidation of the aluminum foil during its storage.
  • a barrier film is approached on the face of the contrast sheet made of natural or synthetic dry fiber material, intended to enter in contact with the flowable resin of the reinforcing structure of the article; said barrier film being chosen from a material with good bonding compatibility with the contrast sheet on the one hand and with the hot-melt resin on the other hand. This prevents the resin from reinforcement structure to cross or impregnate the contrast sheet and create by Consequently, externally visible appearance defects (bubble phenomena, stains, etc.).
  • the barrier film is approached by taking advantage of the heat and pressure exerted during the second assembly cycle of the sheet contrast on the plastic layer.
  • the barrier film can also be provided for the barrier film to come into contact with done during the final assembly of the complex decorated with the reinforcement structure of the article during the subsequent hot pressing cycle.
  • the invention also relates to the decoration complex intended to be assembled with a reinforcement structure based on hot-melt resin of a composite article.
  • Figure 1 shows the first sublimation transfer cycle of the process of the invention.
  • FIGS 2 and 3 show the second hot and under assembly cycle pressure of the process of the invention.
  • FIG. 4 shows a diagrammatic section view of a ski covered with the complex of the invention.
  • Figure 5 is a view similar to Figure 2 according to a variant of the invention.
  • This face 100 is intended to constitute the internal side of the transparent layer in the complex; as opposed to the opposite face 101 which is the outer side.
  • the reason for decoration to be printed is in a manner known per se contained in a sheet of support paper 4 which is applied under a pressure P at a temperature T for a time t against the face 100 of the transparent layer.
  • Layer transparent can be chosen from the sublimable plastics of Polyamides such as PA11, PA12, PA6.3, PA6.6, etc., Polycarbonates, ABS (Acrylonitrile Butadiene Styrene), transparent AS (Acrylonitrile Styrene) mixed with TPU (Thermoplastic Urethane Elastomer), Polyethylenes Terephthalates (PET).
  • Polyamides such as PA11, PA12, PA6.3, PA6.6, etc.
  • Polycarbonates ABS (Acrylonitrile Butadiene Styrene), transparent AS (Acrylonitrile Styrene) mixed with TPU (Thermoplastic Urethane Elastomer), Polyethylenes Terephthalates (PET).
  • the thickness of the transparent layer is between 0.2 and 1.1 mm.
  • the sublimation is carried out at a temperature between 160 and 180 ° C, a pressure from 1 to 2 bars for a time between 1mn30sec and 4mn approximately.
  • the depth of the ink migration front through the layer transparent on the internal side is around or slightly greater than 0.20 mm.
  • this layer is brought together transparent 1 with a solid bonding film 2 and a contrast layer 3.
  • the bonding film 2 is brought into contact with the predecorated face 100 and the layer of contrast 3 is brought into contact with the bonding film ( Figure 2).
  • the contrast layer is a sheet of aluminum not thin anodized 31 covered on each side with a film of ionomer type olefin copolymer (trade name SURLYN®).
  • the thickness of the aluminum foil is between 15 and 60 ⁇ m thickness and the thickness of each film between 10 and 50 ⁇ m.
  • the bonding film is chosen for its adhesive power with the layer transparent 1 and with the contrast layer 3. It is a hot-melt film of thin thickness between a few microns and a few tenths of millimeters.
  • a film 2 based on polymer or copolymer grafted by the action of carboxylic acid or carboxylic acid anhydride by for example by acrylic acid, by methacrylic acid, or by anhydride maleic.
  • Such a film 2 can in particular be made of grafted polyethylene, for example in polyethylene grafted with maleic anhydride.
  • This nature of film allows the bonding of most sublimable materials constituting the transparent layer 1 cited above with the layer of contrast in ionomer treated aluminum.
  • the film 2 can also consist of a copolymer of ethylene and acetate vinyl (EVA), grafted by the action of carboxylic acid or acid anhydride carboxylic.
  • EVA ethylene and acetate vinyl
  • the use of a polyethylene film 2 grafted with anhydride maleic allows the bonding of a first polyamide element 1 on a layer of contrast 3 ionomer treated aluminum.
  • These groupings exist in weak concentration in the material, but have the particularity of migrating to the extreme surface when extruding the polyamide sheet and are therefore available for reaction.
  • the reaction leads to the substitution of the atom of maleic cycle oxygen through the nitrogen atom of the terminal amine group polyamide and formation of a water molecule. It is necessary to wear the substrates at temperatures above 110 ° C to initiate the reaction. We must therefore press hot, by calendering or pressing, film 6 against the first element 1 to ensure their joining together.
  • the various layers 1, 2 are assembled, 3 as part of a single heating and pressurizing cycle.
  • the complex thus formed is then ready for use for use in recovery. of a composite article to decorate.
  • composite article is meant essentially any laminated object having a reinforcing structure. We think in particular of skis, snowboards, skateboards, etc.
  • Figure 4 schematically shows the section of a ski which includes a complex obtained according to the process of the invention.
  • the complex can be joined to the rest of the ski structure in very different processes. In all cases, we proceed generally a hot pressing cycle with the reinforcement structure 4 of the ski based on thermofluable resin.
  • This reinforcing structure 4 can in particular be consisting of a reinforcing textile sheet pre-impregnated with a resin thermosetting or thermoplastic resin.
  • a fiber-based reinforcing textile sheet can be used woven or non-woven glass or carbon impregnated with a resin thermoplastic chosen from the group consisting of polyamides, polycarbonates, PEI (Polyether Imide).
  • a resin thermoplastic chosen from the group consisting of polyamides, polycarbonates, PEI (Polyether Imide).
  • the contrast sheet 3 can be chosen from among the group consisting of non-anodized aluminum, synthetic dry fiber and wood.
  • the contrast sheet When the contrast sheet is made of dry fibers, it appears in the form of a non-woven or woven textile tablecloth (or veil) made of glass fibers, carbon, polyester, polyaramid or other synthetic fibers or natural, like cotton for example.
  • the collage film 20 plays an important role as a buffer for sublimation inks which tend to want to migrate naturally into the dry fiber layer 3.
  • the barrier film 21 is chosen from a material having good bonding compatibility with contrast sheet 3, on the one hand, and with resin hot melt of the reinforcing structure of the composite article to be decorated, other go.
  • the barrier film can also be approached during the final assembly of the complex with the reinforcing structure of the article to be decorated during the subsequent hot pressing cycle.
  • the barrier film 21 can be made of a thermoformable material such than in ionomeric material, preferably dyed in the mass to improve the contrast of sheet 3.
  • the barrier film is chosen from a material whose viscosity is such that it penetrates inside the interstices of the fiber and clogs them.
  • Another advantage of dry fiber lies in its capacity to avoid, just as much, the lateral creep of the bonding film 20. During the hot assembly cycle, the fiber absorbs part of the molten thermoplastic material due to its porosity.
  • an ionomer barrier film allows bonding a contrast sheet chosen from the materials mentioned above with the reinforcement structure based on thermofluidable epoxy resin.

Landscapes

  • Laminated Bodies (AREA)
  • Manufacture Of Macromolecular Shaped Articles (AREA)
  • Application Of Or Painting With Fluid Materials (AREA)

Claims (9)

  1. Verfahren zum Dekorieren eines Verbundartikels, umfassend die Vorbereitung eines verzierten Verbundkörpers, um mit einer Verstärkungsstruktur (4) des Artikels auf Basis eines warmfließfähigen Kunststoffes während eines späteren Warmpreßzyklusses verbunden zu werden, dadurch gekennzeichnet, daß er umfaßt:
    einen ersten Zyklus, in dessen Verlauf man die Übertragung eines Dekors durch die Methode des Aufdruckens sublimierbarer Farbe(n) auf der ersten Stirnfläche (100) einer Schicht aus transparentem oder durchscheinendem Kunststoffmaterial (1) bewirkt;
    man geht anschließend in einem zweiten Zyklus mit Hilfe eines Klebefilms (2, 20) zum Anbringen, im warmen Zustand und unter Druck, auf der ersten so verzierten Stirnfläche (100) einer Kontrastfolie (3) aus einem Material über, das aus der Gruppe bestehend aus dem nichtanodisierten Aluminium, der trockenen Natur- oder Synthetikfaser in der Form eines Tuchs oder eines nichtgewebten oder gewebten Texilschleiers, dem Holz, gewählt ist.
  2. Dekorationsverfahren nach Anspruch 1, dadurch gekennzeichnet, daß die Kontrastfolie (3) eine nichtanodisierte Aluminiumfolie ist, die auf jeder Seite mit einem Film aus einem Kopolymer von Olefin des Ionomertyps bedeckt ist.
  3. Dekorationsverfahren nach Anspruch 1, dadurch gekennzeichnet, daß man zum Anlegen eines Sperrfilms (21) auf der Stirnfläche der Kontrastfolie (3) übergeht, die aus natürlichen oder synthetischen Trockenfasern besteht und dazu bestimmt ist, in Kontakt mit dem fließfähigen Harz der Verstärkungsstruktur (4) des Artikels zu treten; wobei der genannte Sperrfilm (21) aus einem Material gewählt ist, das eine gute Klebeverträglichkeit mit der Kontrastfolie (3) einerseits, und mit dem warmfließfähigen Harz andererseits aufweist.
  4. Dekorationsverfahren nach Anspruch 3, dadurch gekennzeichnet, daß das Anlegen des Sperrfilms (21) unter Nutzung der Wärme und des Druckes erfolgt, der während des zweiten Zyklusses zum Verbinden der Kontrastfaser (3) auf der Kunststoffschicht (1) ausgeübt wird.
  5. Dekorationsverfahren nach Anspruch 3, dadurch gekennzeichnet, daß das Anlegen des Sperrfilms (21) während der Schlußverbindung des verzierten Verbundkörpers mit der Verstärkungsstruktur (4) des Artikels im Verlaufe des nachfolgenden Warmpreßzyklusses erfolgt.
  6. Dekorationsverfahren nach den Ansprüchen 3, 4 oder 5, dadurch gekennzeichnet, daß die Kontrastfolie (3) die Form einer nichtgewebten oder gewebten Textildecke aus Glas-, Kohlenstoff-, Polyester- oder Polyaramid- oder Baumwollfasern aufweist.
  7. Dekorationsverbundartikel, dazu bestimmt, mit einer Verstärkungsstruktur auf der Basis eines warmfließfähigen Harzes verbunden zu werden, wobei der genannte Komplex umfaßt:
    eine Schicht aus transparentem Harzmaterial (1), deren innere Stirnfläche (100) ein Dekor trägt, das durch die Methode des Ausdruckens sublimierbarer Farbe(n) erhalten wird;
    eine Kontrastfolie (3), die die innere Stirnfläche (100) der transparenten Harzschicht (1) bedeckt,
       dadurch gekennzeichnet, daß die Kontrastfolie (3) mit der Stirnfläche (100) der Harzschicht (1) mit Hilfe eines Klebefilms (2) verbunden wird, und daß die Kontrastfolie (3) aus derjenigen Gruppe gewählt wird, die aus nicht anodisiertem Aluminium, der natürlichen oder synthetischen Trockenfaser in Form eines Tuchs oder eines nichtgewebten oder gewebten Textilschleiers, und dem Holz besteht.
  8. DekorationsKomplex nach Anspruch 7, dadurch gekennzeichnet, daß die Kontrastfolie ein nichtgewebtes oder gewebtes Textiltuch aus Glas-, Kohlenstoff-, Polyester- oder Polyaramidfasern ist.
  9. Verbundartikel vom Typ Schneeski oder Schneesurfboard, versehen mit einem Dekorationsverbund nach Anspruch 7 oder 8.
EP96115909A 1995-11-15 1996-10-04 Verfahren zum Dekorieren von Verbundkörpern wie Ski, Surfbretter oder Skateboards Expired - Lifetime EP0774365B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR9513758 1995-11-15
FR9513758A FR2741008B1 (fr) 1995-11-15 1995-11-15 Procede de decoration d'un article composite du type ski, surf ou planche a roulette

Publications (2)

Publication Number Publication Date
EP0774365A1 EP0774365A1 (de) 1997-05-21
EP0774365B1 true EP0774365B1 (de) 2001-08-01

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
EP96115909A Expired - Lifetime EP0774365B1 (de) 1995-11-15 1996-10-04 Verfahren zum Dekorieren von Verbundkörpern wie Ski, Surfbretter oder Skateboards

Country Status (6)

Country Link
US (1) US5851331A (de)
EP (1) EP0774365B1 (de)
JP (1) JPH09193291A (de)
AT (1) ATE203717T1 (de)
DE (1) DE69614222T2 (de)
FR (1) FR2741008B1 (de)

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FR2620628B2 (fr) * 1987-02-27 1994-08-19 Salomon Sa Procede pour realiser un ski et ski fait selon ce procede
FR2620974B1 (fr) * 1987-09-25 1991-09-27 Salomon Sa Procede de decoration d'articles par une methode d'impression par sublimation
FR2620975B1 (fr) * 1987-09-25 1991-09-27 Salomon Sa Procede de decoration d'un objet par la methode d'impression par transfert d'encres sublimables
US5056807A (en) * 1987-10-21 1991-10-15 Norton Company Ski construction
FR2660251A1 (fr) * 1990-04-02 1991-10-04 Rossignol Sa Procede de decoration d'un article et complexe de decoration renforce obtenu par ce procede.
FR2697440B1 (fr) * 1992-10-30 1994-12-30 Salomon Sa Ski comprenant un sous-ensemble de décoration de composition à base d'alliage de polyamides et de polyoléfines.
FR2700273B1 (fr) * 1993-01-12 1995-03-31 Salomon Sa Procédé de décoration d'un dessus de ski.
DE4330077C1 (de) * 1993-09-06 1995-03-16 Blizzard Gmbh Verfahren zur Gestaltung der oberen Fläche und der Seitenwandungen von Ski
US5544908A (en) * 1994-05-06 1996-08-13 K-2 Corporation Thermoplastic composite ski and method of manufacture
FR2729337B1 (fr) * 1995-01-16 1997-07-04 Salomon Sa Procede de decoration d'un article par sublimation

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2353671A1 (de) 2010-01-27 2011-08-10 ATOMIC Austria GmbH Verfahren zur Herstellung eines äußeren Begrenzungselementes für einen Gleitbrettkörper sowie Verfahren zur Herstellung eines damit ausgestatteten Gleitbrettkörpers

Also Published As

Publication number Publication date
JPH09193291A (ja) 1997-07-29
FR2741008B1 (fr) 1998-01-30
DE69614222T2 (de) 2002-06-13
FR2741008A1 (fr) 1997-05-16
EP0774365A1 (de) 1997-05-21
US5851331A (en) 1998-12-22
DE69614222D1 (de) 2001-09-06
ATE203717T1 (de) 2001-08-15

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