EP1557206A1 - Decoration d'un produit multi-couches, plus particulierement d'un dispositif de sports d'hiver - Google Patents

Decoration d'un produit multi-couches, plus particulierement d'un dispositif de sports d'hiver Download PDF

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Publication number
EP1557206A1
EP1557206A1 EP04001355A EP04001355A EP1557206A1 EP 1557206 A1 EP1557206 A1 EP 1557206A1 EP 04001355 A EP04001355 A EP 04001355A EP 04001355 A EP04001355 A EP 04001355A EP 1557206 A1 EP1557206 A1 EP 1557206A1
Authority
EP
European Patent Office
Prior art keywords
decoration
layers
basic layer
semi
color
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Withdrawn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
EP04001355A
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German (de)
English (en)
Inventor
Zef Breukers
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.)
SITRA AG
Original Assignee
Gurit Ittigen AG
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 Gurit Ittigen AG filed Critical Gurit Ittigen AG
Priority to EP04001355A priority Critical patent/EP1557206A1/fr
Priority to EP05100337A priority patent/EP1557207A1/fr
Priority to US11/038,473 priority patent/US20050170154A1/en
Publication of EP1557206A1 publication Critical patent/EP1557206A1/fr
Withdrawn legal-status Critical Current

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Classifications

    • 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
    • A63C5/12—Making thereof; Selection of particular materials
    • 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

Definitions

  • the invention is related to a process of applying a decoration to an especially area-measured device, especially a (winter) sports apparatus, possessing a multi-layered structure, devices and semi-finished sheet products obtainable by said process and the use of crosslinkable, preferably irradiation curable color agents within said purpose.
  • a winter sports apparatus such as e.g. skis and snowboards possess a core structure, commonly made from wood or synthetic material such as urethane foam.
  • a ski further possesses a reinforcing, upper layer ("Obergurt"), made from synthetic fibers such as e.g. glass, carbon or aramids, typically connected to the core structure by e.g. an epoxy resin.
  • a plastic protective layer is currently always provided, usually referred to as top surface.
  • decorations such as text, images or the like are applied.
  • the protective layer is applied in order to provide abrasion- and impact resistance, and needs to withstand dynamic load and temperature conditions which are common in outdoor use.
  • additional lacquers or varnishes are applied for increased scratch and UV resistance and control of glossy or matt surface appearance.
  • Silk screen printing is a discontinuous process, wherein each surface is decorated with individual, investment-intensive equipment, i.e. individual screens for each decoration. Each color needed for the decoration is to be applied and dried separately, rendering the process highly time-consuming and elaborative. Moreover, expensive inks are required if the device is to be used under high dynamic loads, as is the case e.g. for winter sports apparatuses, in order to assure improved resistance to peeling, shearing and shock impact in the device.
  • the dye sublimation technology is characterized in that especially multi-colored patterns are printed on a carrier, e.g. paper and are subsequently transferred to the protective top surface plastic sheet, e.g. of a ski, discontinuously in a thermal press cycle or continuously in a roll calender.
  • a carrier e.g. paper
  • the protective top surface plastic sheet e.g. of a ski
  • PAll or PA 12 need to be used in order to resist these temperatures.
  • this technique is prone to a relatively high transfer failure rate.
  • Another disadvantage of dye sublimation is that it is not a WYSIWYG technique, i.e. transferred colors may appear different as initially expected.
  • thermoplastic toners up to 90-140°C or even higher, typically for about 5 to 20 minutes at pressures of about 2 to 15 bars; conventional thermoplastic toners would melt and flow under these conditions, thus blurring of the decoration would occurs.
  • conventional thermoplastic toners with glass transition temperatures in the range of about 50°C to 80°C and melting temperatures below 120°C are not preferably suitable for such processes.
  • the decoration such as a text, logo, image or the like comprises at least two layers, each layer comprising at least one color agent.
  • the process is characterized in that it comprises the steps of:
  • the glass transition temperature of the decoration is preferably chosen suchlike to withstand the above-mentioned parameters of temperature and pressure, especially at least for times of about 5 to 20 minutes, i.e. to avoid especially blurring of the decoration, visible by the unaided eye. Moreover, delamination at the interface of neighboring layers comprising the color agent(s) is to be avoided under typically occurring dynamic loads for e.g. skis or snowboards in use.
  • the decoration Upon applying the decoration to a basic layer which is intended to form an inner part of the assembled device, a more flexible material can be chosen for the basic layer in contrast to the prior art, thus facilitating the application of the decoration.
  • the decoration may be applied on only one single or even both area-measured sides thereof.
  • the decoration may furthermore be oriented suchlike within the finished device to face either outwards or inwards, when a transparent basic layer is chosen.
  • the decoration was applied directly onto the inwards directed face of an outer, transparent protective sheet, which is relatively thick and stiff, whereby an efficient work-flow (i.e. separate production, supply and storage of semi-finished products, e.g. decorations) in the production of the device was hampered.
  • the process according to the invention of applying a decoration to a device involves the steps of:
  • crosslinkable layers comprising color agents
  • the problem of delamination especially within the decoration under dynamic load a major drawback of the prior art, is overcome:
  • crosslinking may also preferably involve neighboring layers adjacent to the color agents.
  • irradiation-cured color agents such as e.g. toners curing under ultra-violet irradiation will no longer become liquid and cannot subsequently flow during further manufacturing in e.g. presses under high temperatures, such as commonly applied in the production of a winter sports apparatus such as e.g. ski or snowboard.
  • the crosslinkable component(s) within the layers of color agent(s), especially of such toners are (a) in case of thermally crosslinkable formulations e.g. fluorosilicic resins, poysiloxanes, silicas, acrylics, polyurethanes or the like, and (b) in case of irradiation-crosslinkable formulations e.g. pentaerythritol triacrylate (PETA), trimethylolpropane triacrylate (TMPTA), N-vinylpyrrolidone (VP), N-vinylcaprolactam (VC), triallyl isocyanurate (TAIC), trimethallyl isocyanurate (TMAIC) or the like.
  • thermally crosslinkable formulations e.g. fluorosilicic resins, poysiloxanes, silicas, acrylics, polyurethanes or the like
  • irradiation-crosslinkable formulations e.g. pentaerythri
  • preferred crosslinkable formulations contain suitable amounts of e.g. polyethylene in all its forms and their blends (e.g. LDPE, LLPE, MDPE, HDPE, etc.), ethylene copolymers (e.g. EVA, EPDM, EEA, EBA, EMA, CSM, etc.), polyvinyl chloride (PVC), polyurethane (PU), polybutylene terephtalate (PBT) or the like.
  • polyethylene in all its forms and their blends e.g. LDPE, LLPE, MDPE, HDPE, etc.
  • ethylene copolymers e.g. EVA, EPDM, EEA, EBA, EMA, CSM, etc.
  • PVC polyvinyl chloride
  • PU polyurethane
  • PBT polybutylene terephtalate
  • a winter sports apparatus may be any kind of device intended for use on snow and/or ice, e.g. skis, snowboards, etc.; according to the invention, the decoration may be applied either to the top surface or the running surface of the device.
  • the invention is especially useful for devices that are exposed to dynamic loads such as shear load. It is obvious to the person of routine skill in the art to implement the invention also to other sports and/or outdoor devices such as e.g. skate-boards, surf-boards, etc..
  • color agent comprises any kind of substances known in the art for coloration and/or decoration of substrates.
  • Preferred color agents are inks and dry or solvent-based toners, such as those routinely used by the person of routine skill in the art of especially digital printing.
  • the color agents are solvent-based, especially preferred dry toners of the YMCK (yellow, magenta, cyan, black; sometimes comprising a fifth, specially pre-composed color agent) or RGB (red, green, black) system.
  • YMCK yellow, magenta, cyan, black
  • RGB red, green, black
  • Such dry toners are typically based on polyols and/or polyesters, filled with pigments and processing additives such as e.g. rheology modifiers, etc..
  • crosslinking is used in the sense of chemical crosslinking. Upon crosslinking of and within a layer of a first color agent, a chemically compatible, adjacent layer of a second color agent is thus chemically crosslinked within itself, too, but also to the first layer. Crosslinking may thereby occur via an ionic or, especially preferred, a radical pathway.
  • an irradiation source suitable for initiation of an ionic and/or radical pathway may be used.
  • curing and/or crosslinking is effected by means of microwave or radio frequency, infra-red, electron beam or, especially preferred, ultra-violet (UV).
  • curing and/or crosslinking is based on the presence of activated carbon-carbon double bonds such as acrylates, methacrylates, allyl, styrenyl or vinyl.
  • activated carbon-carbon double bonds such as acrylates, methacrylates, allyl, styrenyl or vinyl.
  • any other suitable process known in the art of polymerization may be applied for crosslinking of the different color agent layers.
  • any kind of initiation may be applied such as e.g. moisture-curing and/or -crosslinking systems and/or heat-curing and/or -crosslinking systems.
  • chemically blocked reagents such as deactivated isocyantes or the like; deactivation of isocyanates with e.g.
  • 1° or 2° aliphatic amines, di- or polyamines, hydrazine derivatives, amidines or guanides is known to the person of routine skill in the art) or micro-encapsulated reagents (both to liberate by either moisture, heat, irradiation or the like) may be used.
  • the at least two layers of irradiation curable color agents are applied by means of a digital printing process, preferably a high resolution digital press.
  • a digital printing process preferably a high resolution digital press.
  • Preferred high resolution digital presses are commercially available, e.g. Xeikon DCP 320/500 simplex or duplex machines (Xeikon International, Lier, Belgium); HP Indigo w3200 digital press (HP Indigo, Maastricht, The Netherlands); Agfa Chromapress (Agfa-Gevaert, Mortsel, Belgium); Xerox Docu-color 70 and 100 (Xerox Corp., Stamford, CT, USA), IBM Infocolor 3170 and IBM Infoprint Color 130 (IBM Corp., Armonk, NY, USA); or the like.
  • the layer thickness of each color agent is within the range of about 5 to 8 ⁇ m.
  • conventional computer-based ink-jet printing, laser printing, etc. is applicable within the concept of the present invention. Due to the ease of computer-based image-processing, disadvantages of e.g. silk screen printing and offset printing, where further technical equipment for each separate image or decoration is necessary, are overcome.
  • the basic layer to be attached to the core construction of the device is made from plastic, especially comprising polyethylene terephtalate (PET).
  • PET polyethylene terephtalate
  • the basic layer is pre-treated for enhancement of the bonding of the color agents.
  • Suchlike coated PET films are commercially available e.g. from Hanita Coatings (Kibbutz Hanita, Israel) under the tradename Durakote, e.g. article K07512; from Folex AG (Seewen-Schwyz, Switzerland), under the tradename Digiprint XE Films (e.g. article 0681.5.736); and from Hifi Film (Stevenage, Hertfordshire, United Kingdom) under the tradename Digital Print Polyester Films.
  • the basic layer is white or transparent in order to aid the appearance of the decoration; especially white basic layers are preferred in order to 'hide' undesired patterns, roughnesses and discolorations of underlying layers.
  • suitable adhesives known to the person of routine skill in the art are preferably used. These adhesives need to be adapted to the materials to be connected and may be applied as bulk material or film. As an alternative, e.g. surface flame treatment with a Pyrosil® additive (Sura Instruments, Jena, Germany) may be used for attachment of the decorated basic layer to the core construction.
  • the decoration is applied to a basic layer, preferably mediated by a primer layer, and the decoration is based on developing of a multi-layered photographic emulsion, preferably a light-sensitive color-photographic emulsion.
  • a multi-layered photographic emulsion preferably a light-sensitive color-photographic emulsion.
  • Such multi-layered photographic emulsions are known in the art and are especially useful for production processes of devices that afford application of high temperatures, when they are mouldable.
  • Such mouldable photographic materials are e.g. known from WO 98/35269, herewith incorporated by reference. It is especially preferred that the multiple layers of the photographic layer are cured and crosslinked by means of an outer influence, e.g. irradiation.
  • the invention moreover relates to a semi-finished sheet product for manufacturing of a device, preferably a sports apparatus, most preferably a winter sports apparatus, comprising a preferably white basic layer carrying a decoration, wherein the decoration comprises at least two layers of color agents with an interface in between these at least two layers of color agents, and wherein the composition of the decoration is configured suchlike to withstand heated press cycles of
  • Such a semi-finished product is resistant to blurring of the decoration under normal heat press cycles typically applied in e.g. ski and snowboard manufacturing. Morevover, delamination at the interface in between the two layers of color agents is avoided, especially under dynamic shear loads commonly occurring in use of e.g. skis or snowboards.
  • the semi-finished product preferably comprises a basic layer carrying a decoration, wherein the decoration comprises at least two layers of color agents, and wherein the color agents are crosslinked with each other.
  • the decoration comprises at least two layers of color agents, and wherein the color agents are crosslinked with each other.
  • a semi-finished product according to the invention may be supplied to the manufacturer of the final device e.g. pre-assembled (e.g. laminated) to the protective top surface layer. After commonly used heat press cycles of the production line of e.g. ski and snowboard manufacturing, additional protective-lacquers or - varnishes may be applied.
  • the basic layer carrying the decoration may be preliminarily coated with a release film, which is suitable to withstand common transport-, storing- and preferably also heat press cycle conditions.
  • the release film is taken off preferably only after the heat press cycles.
  • a conventional protective layer or, especially preferred, an impact- and scratch resistant, especially UV-resistant lacquer or varnish may be applied to the device.
  • lacquers or varnishes are typically e.g. based on two-component urethane resins applied in a curtain coating process.
  • a device, especially a winter sports apparatus, possessing a multi-layered surface is preferably made by a process outlined above and/or by using a semi-finished product outlined above, especially a laminated sheet product, comprising layers of color agents on a basic layer, wherein the layers of color agents are crosslinked with each other by means of an outer influence such as irradiation, heat or moisture, especially UV-irradiation.
  • a device 1, especially a winter sports apparatus, possessing a multi-layered surface is built up on a core construction 5.
  • the core construction 5 is mostly made from epoxy resin such as 100 parts by weight of Araldite 136N with e.g. 35 parts by weight of Araldite HY 991 (Vantico, Huntsman, Eversberg, Belgium).
  • the device 1 comprises a decoration made up from at least two layers of irradiation curable color agents 2A,2B,2C,2D applied to a basic layer 3, preferably by means of a digital printing process.
  • UV-curing and crosslinkable color agents 2A,2B,2C,2D were prepared by mixing and homogenizing commercially available dry toners with equally grain-sized, crosslinkable components such as triallyl isocyanurate (TAIC; Sartomer, Exton, PA, USA).
  • TAIC triallyl isocyanurate
  • the necessary amount of the crosslinkable component to be added to the color agent in order to achieve a sufficient increase of the glass transition temperature Tg of the decoration is easily to determine by routine experiments of the person of routine skill in the art.
  • the basic layer 3 is a Durakote K0712 film (Hanita Coatings, Hanita Kibbutz, Israel).
  • irradiation curable and crosslinkable color agents 2A,2B,2C,2D are used for the decoration.
  • an irradiation source such as UV light
  • the different color agents are forming a chemically crosslinked network, thus overcoming the problem of occasional delamination at the interface of different color layers.
  • a semi-finished laminated sheet product comprising the basic layer 3 and the color agents 2A,2B,2C,2D may be produced, stored and supplied (e.g.
  • Such a semi-finished laminated sheet is to be connected to the protecting sheet 4, e.g. by means of a suitable adhesive 6A, e.g. a polyurethane-based, thermoplastic adhesive film such as Puro L (Collano Xiro AG, Sau).
  • a suitable adhesive 6A e.g. a polyurethane-based, thermoplastic adhesive film such as Puro L (Collano Xiro AG, Sau).
  • a protecting sheet 4 Duraclear (IMS Kunststoff AG, Worb, Switzerland) was chosen with a thickness in the range of about 300 ⁇ m to about 1mm, preferably in the range of about 600 ⁇ m.
  • an appropriate adhesive 6B may also be chosen for the connection of the basic layer 3 to the core construction 5; in this embodiment, Puro L (Collano Xiro AG, Switzerland) was chosen, too.
  • hot melt adhesives preferably based on co-polyester resins, such as XAF 37.204 and XAF 37.304 (Collano Xiro AG, Switzerland) may also be used.
  • co-polyester resins such as XAF 37.204 and XAF 37.304 (Collano Xiro AG, Switzerland) may also be used.
  • additional layers or not need to be integrated in addition to the adhesives 6A,6B in order to achieve a suffiently delamination-resistent laminate can be easily investigated by routine experiments.
  • a flame treatment of the PET basic layer with Pyrosil® flame additives as provided by Sura Instruments (Jena, Germany) may be used in order to improve the bonding strength of the adhesive system onto the PET film.

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EP04001355A 2004-01-22 2004-01-22 Decoration d'un produit multi-couches, plus particulierement d'un dispositif de sports d'hiver Withdrawn EP1557206A1 (fr)

Priority Applications (3)

Application Number Priority Date Filing Date Title
EP04001355A EP1557206A1 (fr) 2004-01-22 2004-01-22 Decoration d'un produit multi-couches, plus particulierement d'un dispositif de sports d'hiver
EP05100337A EP1557207A1 (fr) 2004-01-22 2005-01-20 decoration d'un produit multi-couches, notamment d'un dispositif de sports d'hiver
US11/038,473 US20050170154A1 (en) 2004-01-22 2005-01-21 Decoration of a multi-layered device, especially a (winter) sports apparatus

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP04001355A EP1557206A1 (fr) 2004-01-22 2004-01-22 Decoration d'un produit multi-couches, plus particulierement d'un dispositif de sports d'hiver

Publications (1)

Publication Number Publication Date
EP1557206A1 true EP1557206A1 (fr) 2005-07-27

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EP04001355A Withdrawn EP1557206A1 (fr) 2004-01-22 2004-01-22 Decoration d'un produit multi-couches, plus particulierement d'un dispositif de sports d'hiver

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EP (1) EP1557206A1 (fr)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1719617A1 (fr) * 2005-05-03 2006-11-08 Ims Kunststoff Ag Decoration d'un produit multi-couches, notamment d'un dispositif de sports d'hiver
US8206800B2 (en) 2006-11-02 2012-06-26 Louis Brown Abrams Flocked adhesive article having multi-component adhesive film
US20120276309A1 (en) * 2011-04-29 2012-11-01 Bryan Marc Failing Apparatus configuration
US8354050B2 (en) 2000-07-24 2013-01-15 High Voltage Graphics, Inc. Co-molded direct flock and flock transfer and methods of making same
US8475905B2 (en) 2007-02-14 2013-07-02 High Voltage Graphics, Inc Sublimation dye printed textile
USRE45802E1 (en) 2005-07-28 2015-11-17 High Voltage Graphics, Inc. Flocked articles having noncompatible insert and porous film
US9193214B2 (en) 2012-10-12 2015-11-24 High Voltage Graphics, Inc. Flexible heat sealable decorative articles and method for making the same

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0722843A1 (fr) * 1995-01-16 1996-07-24 Salomon S.A. Procédé de décoration d'un article par sublimation
FR2741011A1 (fr) * 1995-11-13 1997-05-16 Rossignol Sa Procede de decoration d'un support possedant une geometrie de surface presentant des reliefs
EP0936080A2 (fr) * 1998-02-11 1999-08-18 Fischer Gesellschaft m.b.H. Procédé de décoration de skis ou similaires

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0722843A1 (fr) * 1995-01-16 1996-07-24 Salomon S.A. Procédé de décoration d'un article par sublimation
FR2741011A1 (fr) * 1995-11-13 1997-05-16 Rossignol Sa Procede de decoration d'un support possedant une geometrie de surface presentant des reliefs
EP0936080A2 (fr) * 1998-02-11 1999-08-18 Fischer Gesellschaft m.b.H. Procédé de décoration de skis ou similaires

Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8354050B2 (en) 2000-07-24 2013-01-15 High Voltage Graphics, Inc. Co-molded direct flock and flock transfer and methods of making same
EP1719617A1 (fr) * 2005-05-03 2006-11-08 Ims Kunststoff Ag Decoration d'un produit multi-couches, notamment d'un dispositif de sports d'hiver
USRE45802E1 (en) 2005-07-28 2015-11-17 High Voltage Graphics, Inc. Flocked articles having noncompatible insert and porous film
US8206800B2 (en) 2006-11-02 2012-06-26 Louis Brown Abrams Flocked adhesive article having multi-component adhesive film
US8475905B2 (en) 2007-02-14 2013-07-02 High Voltage Graphics, Inc Sublimation dye printed textile
US9884244B1 (en) 2011-04-29 2018-02-06 Bryan Marc Failing Sports board configuration
US9305120B2 (en) * 2011-04-29 2016-04-05 Bryan Marc Failing Sports board configuration
US9526970B1 (en) 2011-04-29 2016-12-27 Bryan Marc Failing Sports board configuration
US20120276309A1 (en) * 2011-04-29 2012-11-01 Bryan Marc Failing Apparatus configuration
US10471333B1 (en) 2011-04-29 2019-11-12 Bryan Marc Failing Sports board configuration
US11285375B1 (en) 2011-04-29 2022-03-29 Bryan Marc Failing Sports board configuration
US11724174B1 (en) 2011-04-29 2023-08-15 Bryan Marc Failing Sports board configuration
US9193214B2 (en) 2012-10-12 2015-11-24 High Voltage Graphics, Inc. Flexible heat sealable decorative articles and method for making the same

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