EP1831322A1 - Pellicule protectrice autocollante destinee a la protection mecanique de couches de vernis chimiquement non durcies, procede de fabrication d'une telle pellicule et utilisation - Google Patents

Pellicule protectrice autocollante destinee a la protection mecanique de couches de vernis chimiquement non durcies, procede de fabrication d'une telle pellicule et utilisation

Info

Publication number
EP1831322A1
EP1831322A1 EP05825237A EP05825237A EP1831322A1 EP 1831322 A1 EP1831322 A1 EP 1831322A1 EP 05825237 A EP05825237 A EP 05825237A EP 05825237 A EP05825237 A EP 05825237A EP 1831322 A1 EP1831322 A1 EP 1831322A1
Authority
EP
European Patent Office
Prior art keywords
self
adhesive
protective film
cover
sheet
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Withdrawn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
EP05825237A
Other languages
German (de)
English (en)
Inventor
Nicolai Böhm
Karsten Seitz
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.)
Tesa SE
Original Assignee
Tesa SE
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 Tesa SE filed Critical Tesa SE
Publication of EP1831322A1 publication Critical patent/EP1831322A1/fr
Withdrawn legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
    • C09J7/00—Adhesives in the form of films or foils
    • C09J7/20—Adhesives in the form of films or foils characterised by their carriers
    • C09J7/22—Plastics; Metallised plastics
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
    • C09J7/00—Adhesives in the form of films or foils
    • C09J7/30—Adhesives in the form of films or foils characterised by the adhesive composition
    • C09J7/38—Pressure-sensitive adhesives [PSA]
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
    • C09J2407/00—Presence of natural rubber
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
    • C09J2423/00—Presence of polyolefin
    • C09J2423/006—Presence of polyolefin in the substrate
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
    • C09J2427/00—Presence of halogenated polymer
    • C09J2427/006—Presence of halogenated polymer in the substrate
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
    • C09J2433/00—Presence of (meth)acrylic polymer
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
    • C09J2475/00—Presence of polyurethane
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
    • C09J2483/00—Presence of polysiloxane
    • 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
    • Y10T156/00—Adhesive bonding and miscellaneous chemical manufacture
    • Y10T156/10—Methods of surface bonding and/or assembly therefor
    • 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
    • Y10T428/14—Layer or component removable to expose adhesive
    • Y10T428/1462—Polymer derived from material having at least one acrylic or alkacrylic group or the nitrile or amide derivative thereof [e.g., acrylamide, acrylate ester, etc.]
    • 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
    • Y10T428/14—Layer or component removable to expose adhesive
    • Y10T428/1476—Release layer

Definitions

  • Self-adhesive protective film for the mechanical protection of non-chemically cured lacquer layers method for producing such and the
  • the invention relates to a self-adhesive protective film for the mechanical protection of chemically and / or electron beams or UV rays not cured lacquer layers, wherein the lacquer layers applied to thermoplastic films, converted in the uncured state and after forming and curing with reinforcing plastics be back-injected, a process for producing such a self-adhesive protective film and their use.
  • the self-adhesive protective film is intended to protect the uncured paint applied to the carrier film from mechanical damage during the subsequent forming, hardening and backmolding process.
  • Sheet metal parts are degreased, chemically primed (phosphated), usually provided with a cathodic dip paint as the base layer and spray-painted in successive steps with a filler, a coloring topcoat and a final clearcoat.
  • a filler, a coloring topcoat and a final clearcoat are also spray-painted.
  • the colored design of plastic parts in addition to the paint is possible by coloring the plastic compound, but does not meet in the least the requirements for mechanical and weather resistance and optical quality.
  • colored plastic films can be coextruded together with carrier and protective layers.
  • thermoforming and subsequent injection molding can thus produce plastic moldings with high quality surface.
  • the limitation is, however, that the color matching to differently manufactured, colored parts is possible only with solid colors.
  • the extension to metallic paints is only given if you apply the paints in liquid form, so that a completely isotropic distribution of the metal baubles is achieved. Such a process is described in US 2004/0123942, in which a smooth carrier film is first painted with a final clear coat, on which the coloring topcoat and on this in turn a binder layer is applied.
  • thermoformable plastic sheet of, for example, ABS (acrylonitrile-butadiene-styrene copolymer).
  • ABS acrylonitrile-butadiene-styrene copolymer
  • the dry-painted plate can be thermoformed and back-injected with a suitable plastic.
  • a disadvantage of this method is that the paint system is deformed in the already cured state, which is possible only with a few paints and greatly limits the selection of suitable paints. This disadvantage is circumvented in the following process, as set forth by A. Grefenstein and K. Kaymaak, Kunststoffe 93 (8) (2003), pages 84 to 87.
  • a web-shaped carrier film made of ASA (styrene-acrylonitrile copolymer impact-modified with acrylic ester rubber) or ASA / PC (blend of ASA and polycarbonate) is coated in a continuous process with a coloring topcoat and subsequently a final clearcoat.
  • the paint system is initially dried only physically, that is freed from solvents, but not chemically and / or cured by electron beams or by UV radiation. Although it is block-resistant, but mechanically deformable. To protect against mechanical influences on the soft paint is provided to apply a protective film on this. Plates of the desired size are then cut from the lacquered and protective-covered sheet, formed in a thermal process and then cured by UV Exposure hardened. At the end, the molded component is reinforced by injection molding and then peeled off the protective film again.
  • ASA styrene-acrylonitrile copolymer impact-modified with acrylic ester rubber
  • ASA / PC blend of ASA and polycarbonate
  • the optical quality of the component painted in this way depends not only on the choice of paint, but also on the suitability of the protective film. This must adhere securely to the block-resistant paint and can be applied to the paint easily and free of air bubbles.
  • Self-adhesive protective films which can preferably be molded in the thermoforming process, are suitable for this purpose. In particular, soft, non-stretched carrier foils come into question.
  • all known self-adhesive protective films that meet the requirements for applicability, adhesion and deformability leave surface deformations of the clearcoat, which result from a cancellation of the intrinsic structure of the self-adhesive protective films in the deformable paint. This is unacceptable and calls the innovative concept into question, as long as no self-adhesive protective film is available, which leaves the paint undisturbed.
  • a standard in the paint industry for the optical quality of a paint also described as “brilliance” is the DOI value (Distinctiveness of Image), which describes the imaging quality of rectilinear structures reflected on the paint Gloss measurement, in which the sharpness of the image or the reflection of certain objects (window cross, ceiling light) is expressed through the varnished surface in a dimensional representation that reflects the visual impression as well as possible.
  • the measurement is carried out either subjectively or objectively with a special measuring device As a consequence of a variegation process, the mirror image is disturbed, the edges are perceived as out of focus or blurred, and the DOl value covers wavelength ranges from less than 0.1 mm to about 1 mm, ie close to the resolution limit of the human eye.
  • the DOI value can be measured with suitable measuring instruments (for example, the "Wave Scan DOI” from BYK-Gardner, Germany), which record the intensity of the light reflected from different areas of the sample surface at defined angles.
  • suitable measuring instruments for example, the "Wave Scan DOI” from BYK-Gardner, Germany
  • Typical surface structures of films or film coatings are often of a similar order of magnitude as those of paints (strip coating defects excepted). Imprints of film structures in paints also turn out to be lacking image quality noticeable and can therefore be well quantified with the DOl value.
  • the object of the invention is to provide a protective film for the mechanical protection of chemically and / or by electron beams or UV rays not cured lacquer layers and methods for producing such, which does not solve the problems of the prior art or not in the Measured.
  • a protective film for the mechanical protection of chemically and / or by electron beams or UV rays not cured lacquer layers and methods for producing such, which does not solve the problems of the prior art or not in the Measured.
  • the proposed self-adhesive protective film that causes these planar deformations of the clearcoat in the chemically uncured state.
  • the invention relates to a self-adhesive protective film for covering chemically and / or by electron beams or non-UV cured resist layers, with a support, a self-adhesive applied thereto and a sheet-like cover thereof, wherein the self-adhesive composition after removal of the cover immediately prior to application the lacquer layer has a DOI value (Distinctiveness of Image) of at least 60 units, preferably 75 units, and wherein the peel force of the protective film from the final clear coat does not exceed 4 N / cm before or after the curing of the lacquer layer.
  • DOI value Distinctiveness of Image
  • the self-adhesive protective film consists in a first advantageous embodiment of a film carrier in particular of 20 to 200 microns thick, more preferably 40 to 120 microns thick to impart a sufficient protective effect, but on the other hand not too much to lose flexibility.
  • the carrier is coated with a releasable self-adhesive composition having a basis weight of 5 to 100 g / m 2 , preferably 8 to 50 g / m 2 .
  • the web-shaped cover has on the self-adhesive side facing such a surface finish that the self-adhesive composition after intensive contact with the sheet-shaped cover the DOl value according to the invention of at least 60 units, preferably 75 units.
  • the sheet-like cover consists of an abhesively finished film, more preferably of a stretched, abhesively finished film.
  • the idea according to the invention consists in transferring the smooth structure of the side of the sheet-like covering facing the self-adhesive composition onto the self-adhesive composition, which prevents a planar deformation of the chemically uncured coating layer.
  • the sheet-shaped cover serves to prevent the contamination of the self-adhesive by foreign particles such as dust and the like.
  • the invention relates to methods for producing the protective film according to the invention by the protective film on the side of the self-adhesive composition is brought together with a sheet-like cover or - in an alternative - the self-adhesive is applied directly to the sheet-like cover and the backing of the protective film on the exposed side of the Self-adhesive is laminated, wherein the sheet-like cover on the self-adhesive side facing side has such a surface finish that the self-adhesive composition after intensive contact with the sheet-like cover the DOl value according to the invention of at least 60 units, preferably 75 units.
  • the backing of the protective film is a plastic film with a non-embossed or textured surface in order not to impair the surface quality of the adhesive by a self-structure.
  • the film is preferably not stretched.
  • suitable film materials must always be done in the context of the intended thermoform ble substrate. For example, if ASA is used as a carrier film for the paint system, a typical processing temperature for thermal Form at about 160 to 180 0 C. It must be ensured that the support of the protective film is already softened at this temperature.
  • Thermoplastic polymers such as polyolefins are therefore preferably used as materials for the backing of the protective film. These may be, for example, polyethylene, polypropylene, and mixtures or copolymers thereof (for example, random copolymer or polypropylene block copolymer).
  • the films may also contain different amounts of other polyolefin copolymers such as copolymers of ethylene and ⁇ -olefins such as 1-butene, 1-hexene, 1-octene but also ethylene-styrene copolymers, ethylene with polar comonomers, such as acrylic acid, and copolymers of propylene with ⁇ -olefins, such as ethylene, 1-butene, 1-butylene glycol (depending on the proportion and method of preparation). Containing hexene, 1-octene.
  • polyolefin copolymers such as copolymers of ethylene and ⁇ -olefins such as 1-butene, 1-hexene, 1-octene but also ethylene-styrene copolymers, ethylene with polar comonomers, such as acrylic acid, and copolymers of propylene with ⁇ -olefins, such as ethylene, 1-butene,
  • PVC films are also suitable.
  • films of polymers such as polystyrene, polycarbonate, polyamide, polyester (polyethylene terephthalate, polybutylene terephthalate), polymethylmethacrylate, polyurethane, copolymers (for example acrylonitrile-butadiene) or film composites of different material layers.
  • UV curing of the final clearcoat is to take place through the protective film, it must be UV-permeable. This means that in this case no or only very small amounts of UV absorbers, whether as filler or light stabilizer, may be contained.
  • the protective film of the invention is self-adhesive with a pressure-sensitive adhesive, since the chemically uncured lacquers, while still deformable, but at the same time block-resistant, that is not sticky. Suitable adhesives must immediately have a good adhesion to the paints, but still be easily removable after prolonged contact time, the thermal deformation and the UV-induced curing of the paint.
  • the adhesive must be flowable by contact with the sheet-like cover so that it can assume the DOl value according to the invention of at least 60 units, preferably 75 units. Inhomogeneities, such as may result from coarse fillers, inhomogeneous distribution of additives such as tackifier resins or thermodynamic incompatibilities of adhesive constituents, are therefore to be avoided.
  • resin-blended natural rubber self-adhesive compositions acrylic acid ester copolymers (with and without the addition of adhesive resins), silicone, polyurethane or synthetic rubber self-adhesive compositions, for example based on butyl rubber, polyisobutylene or polyethylene vinyl acetate.
  • All self-adhesives if available, can be applied from solution, from the melt or as an aqueous dispersion either to the support or the sheet-like cover with suitable coating aids.
  • the peel force of the final clearcoat material must be adjusted even after a long bonding time, thermal deformation, UV-induced and / or chemical paint curing, so that preferably 2 N / cm is not be crossed, be exceeded, be passed.
  • the self-adhesive of the protective film according to the invention is on one side with the carrier, on the other side with the sheet-like cover in contact.
  • the latter should be able to be solved easily and without chatter marks of the self-adhesive.
  • such web-shaped cover materials are usually equipped with adhesive abhesive silicone compounds. Less common are materials such as polyvinyl stearyl carbamate, Polyethyleniminstearylcarbamid or fluoroorganic compounds.
  • carrier materials for sheet-like covers papers are very common, sometimes with polymeric coatings of, for example, polyethylene, which often do not meet the requirements of the DOI.
  • the sheet-like cover preferably consists of a non-embossed or structured film material, more preferably of biaxially stretched polyethylene terephthalate or stretched polypropylene film (mono- or biaxial).
  • the abhesive coating whether applied from solution or as a 100% system, must not degrade the surface properties of the base film of the sheet-like cover material to such an extent that it has the DOI value of the self-adhesive composition according to the invention falls below at least 60 units, preferably 75 units after intensive contact with the web-shaped cover.
  • the abhesive surface of the sheet-like cover itself preferably has a DOI value which does not fall below the number 60.
  • the processes for the production of the protective film according to the invention include both the way of coating the carrier with a self-adhesive and then providing it with the sheet-like cover, and of coating the first with the self-adhesive composition and then the carrier zuzukaschieren.
  • a certain maturation time of the coated material may be advantageous before use as protective film (optionally at elevated temperatures) to improve the subsequent smoothing of the self-adhesive, this is not necessary in the second method, since the self-adhesive still in liquid form the surface of the sheet-like covering material directly images.
  • the self-adhesive protective film according to the invention is applied to the lacquer layer directly after the physical drying of the lacquered carrier film.
  • the paint film can be wound up after the cover with the self-adhesive protective film, since the deformable paint would otherwise come into contact with the unpainted back of the carrier film and thus could suffer damage.
  • the sheet-like cover material must be removed from the adhesive layer of the self-adhesive protective film in the first step, before it is applied to the lacquer layer of the lacquered carrier film free of wrinkles and air bubbles, for example with the aid of a laminating device.
  • coated carrier film can be rolled up on itself and is in this form over a longer Shelf life in moderate environmental conditions, without sacrificing quality, especially the surface finish of the paint to suffer.
  • the plates are cut from the rolls, the plates are brought into the desired shape by the action of heat and mechanical forces, and the lacquer is chemically crosslinked, ie cured, by the self-adhesive protective film with electron beams or UV radiation, thereby obtaining its final ready-to-use resistance ,
  • the self-adhesive protective film can be removed after the manufacture or assembly of the component.
  • the protective film according to the invention is described below in a preferred embodiment with reference to several examples, without wishing to limit the invention in any way. Furthermore, comparative examples are listed in which unsuitable protective films are shown.
  • the self-adhesive composition consisting of a mixture of the polyisobutylenes Oppanol B80 and B10 (BASF, Germany) in a weight ratio of 9: 1, dissolved in toluene, was on a laboratory coating system using a spreading bar on a 80 micron thick carrier film of LDPE (strike side corona-pretreated ) struck that after drying in the air flow of the drying channel an adhesive application of 30 g / m 2 resulted.
  • the protective film was laminated on a siliconized polyester film (Silphan VQ50 M072, Siliconature, Italy) as a sheet-like cover without creases and bubbles, rolled up on itself and stored for two weeks at room temperature before use.
  • Example 3 As in Example 1, in contrast to a 60 micron thick carrier film of a propylene propylene Randomcopolymer was used with an ethylene content of 8%. Example 3
  • Example 1 As in Example 1, in contrast to this, a self-adhesive composition consisting of butyl rubber Butyl 301 (Lanxess, Germany) and the adhesive resin Regalite R 1090 (Eastman Chemical, USA) in a weight ratio of 9: 1, dissolved in toluene, was used.
  • Example 1 in contrast to this, a self-adhesive composition based on a polyacrylic ester dispersion (Acronal A 110, BASF, Germany) which had been mixed with 2% of the isocyanate crosslinker Basonat F 200 WD (BASF, Germany) was coated with a wire bar streaked.
  • the adhesive application was 20 g / m 2 .
  • Example 2 As in Example 1, except as a sheet-like cover an alternative siliconized polyester film (Silphan VS50 M44A, Siliconature, Italy) was used.
  • Siphan VS50 M44A Siliconature, Italy
  • Example 2 in contrast to the adhesive was painted onto the sheet-like cover and laminated at the end of the LDPE carrier.
  • Example 1 As in Example 1, in contrast to this, a release paper (Natrosil 23944, Schleipen & Erkens, Germany) was selected as a sheet-like cover.
  • Example 2 As in Example 1, in contrast to the adhesive was applied so that an adhesive application of 3 g / m 2 resulted.
  • Example 4 in contrast to the protective film was not provided with a sheet-like cover, but wound on itself. test criteria
  • sample protective films were applied without folds and bubbles on the paints with the aid of a rubber roller. These were stored for 14 days under standard conditions (25 ° C, 50% relative humidity). Subsequently, the plates were exposed to UV-C radiation and an energy density of 200 mJ / cm 2 .
  • the protective film was peeled off on a tensile testing machine at a speed of 300 mm / min and the peeling force was absorbed. A peel value below 4 N / cm was rated as suitable for use.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Laminated Bodies (AREA)
  • Adhesive Tapes (AREA)
  • Application Of Or Painting With Fluid Materials (AREA)

Abstract

L'invention concerne une pellicule protectrice autocollante destinée à recouvrir des couches de vernies non durcies chimiquement et/ou par rayonnement électronique ou par rayonnement UV, comportant un support, une masse autocollante appliquée sur le support, et une couverture en forme de bande de ladite masse. Après retrait de la couverture et directement avant application sur la couche de vernis, la masse autocollante présente une valeur de DOI (distinctibilité d'image) d'au moins 60 unités, de préférence de 75 unités, la force de pelage de la pellicule protectrice par rapport au vernis transparent de finition n'excédant pas 4 N/cm avant ou après durcissage.
EP05825237A 2004-12-20 2005-12-06 Pellicule protectrice autocollante destinee a la protection mecanique de couches de vernis chimiquement non durcies, procede de fabrication d'une telle pellicule et utilisation Withdrawn EP1831322A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102004062323A DE102004062323A1 (de) 2004-12-20 2004-12-20 Selbstklebende Schutzfolie für den mechanischen Schutz von chemisch nicht ausgehärteten Lackschichten, Verfahren zur Herstellung einer solchen und die Verwendung dieser
PCT/EP2005/056522 WO2006067034A1 (fr) 2004-12-20 2005-12-06 Pellicule protectrice autocollante destinee a la protection mecanique de couches de vernis chimiquement non durcies, procede de fabrication d'une telle pellicule et utilisation

Publications (1)

Publication Number Publication Date
EP1831322A1 true EP1831322A1 (fr) 2007-09-12

Family

ID=35781445

Family Applications (1)

Application Number Title Priority Date Filing Date
EP05825237A Withdrawn EP1831322A1 (fr) 2004-12-20 2005-12-06 Pellicule protectrice autocollante destinee a la protection mecanique de couches de vernis chimiquement non durcies, procede de fabrication d'une telle pellicule et utilisation

Country Status (5)

Country Link
US (1) US20090263607A1 (fr)
EP (1) EP1831322A1 (fr)
JP (1) JP2008524012A (fr)
DE (1) DE102004062323A1 (fr)
WO (1) WO2006067034A1 (fr)

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DE102009022980A1 (de) * 2009-05-28 2010-12-02 Tesa Se Schutzfolie für Oberflächen
FR2969626B1 (fr) * 2010-12-23 2014-04-25 Novacel Sa Film de protection de surface et son utilisation
CN106808821A (zh) * 2017-04-05 2017-06-09 苏州安洁科技股份有限公司 一种新型轮转辊涂工艺

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US20090263607A1 (en) 2009-10-22
JP2008524012A (ja) 2008-07-10
DE102004062323A1 (de) 2006-06-22

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