WO2005037528A2 - Procede pour appliquer une marque - Google Patents

Procede pour appliquer une marque Download PDF

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Publication number
WO2005037528A2
WO2005037528A2 PCT/EP2004/009712 EP2004009712W WO2005037528A2 WO 2005037528 A2 WO2005037528 A2 WO 2005037528A2 EP 2004009712 W EP2004009712 W EP 2004009712W WO 2005037528 A2 WO2005037528 A2 WO 2005037528A2
Authority
WO
WIPO (PCT)
Prior art keywords
protection film
surface protection
semi
finished product
film
Prior art date
Application number
PCT/EP2004/009712
Other languages
German (de)
English (en)
Other versions
WO2005037528A3 (fr
Inventor
Markus Hartmann
Waldemar Wiewiora
Original Assignee
Veka 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
Priority claimed from DE2003144195 external-priority patent/DE10344195B4/de
Application filed by Veka Ag filed Critical Veka Ag
Priority to EP04764677A priority Critical patent/EP1663619A2/fr
Publication of WO2005037528A2 publication Critical patent/WO2005037528A2/fr
Publication of WO2005037528A3 publication Critical patent/WO2005037528A3/fr

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B44—DECORATIVE ARTS
    • B44B—MACHINES, APPARATUS OR TOOLS FOR ARTISTIC WORK, e.g. FOR SCULPTURING, GUILLOCHING, CARVING, BRANDING, INLAYING
    • B44B5/00—Machines or apparatus for embossing decorations or marks, e.g. embossing coins
    • B44B5/0004—Machines or apparatus for embossing decorations or marks, e.g. embossing coins characterised by the movement of the embossing tool(s), or the movement of the work, during the embossing operation
    • B44B5/0009—Rotating embossing tools
    • 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
    • B29C59/00—Surface shaping of articles, e.g. embossing; Apparatus therefor
    • B29C59/02—Surface shaping of articles, e.g. embossing; Apparatus therefor by mechanical means, e.g. pressing
    • B29C59/026—Surface shaping of articles, e.g. embossing; Apparatus therefor by mechanical means, e.g. pressing of layered or coated substantially flat surfaces
    • 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
    • B29C63/00—Lining or sheathing, i.e. applying preformed layers or sheathings of plastics; Apparatus therefor
    • B29C63/02—Lining or sheathing, i.e. applying preformed layers or sheathings of plastics; Apparatus therefor using sheet or web-like material
    • 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
    • B29C59/00—Surface shaping of articles, e.g. embossing; Apparatus therefor
    • B29C59/02—Surface shaping of articles, e.g. embossing; Apparatus therefor by mechanical means, e.g. pressing
    • B29C59/022—Surface shaping of articles, e.g. embossing; Apparatus therefor by mechanical means, e.g. pressing characterised by the disposition or the configuration, e.g. dimensions, of the embossments or the shaping tools therefor
    • B29C2059/023—Microembossing
    • 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
    • B29C63/00—Lining or sheathing, i.e. applying preformed layers or sheathings of plastics; Apparatus therefor
    • B29C63/0056—Provisional sheathings

Definitions

  • the invention relates to a method for applying a sealing mark to a semifinished product to be covered with a surface protective film, with the following method steps: feeding the semifinished product to a coating device with at least one pressure roller, supplying the partially transparent surface protective film provided with an adhesive layer and laying the surface protective film with the adhesive layer on a flat surface of the semi-finished product, passing the semi-finished product coated with the surface protection film under the pressure roller.
  • Semi-finished products such as plastic sheets are often not permanently marked with a brand or any other indication of origin because they should not be visible on the visible surfaces of the workpieces made from them.
  • the manufacturer of the semi-finished products is interested in identifying original goods manufactured by him on the market and thus protecting himself from imitations with possibly lower quality.
  • Printing the surface protection film before placing it on the semi-finished product is possible for this purpose, but it is relatively more expensive. Appropriate printing entails costs that are hardly justifiable for large-scale packaging that can be disposed of after only a short period of use.
  • the task therefore arises of applying the surface protection film at the same time in a cost-effective manner to a tamper-evident seal mark on a semi-finished product with a smooth and dense surface.
  • this object is achieved by a method having the features of claim 1.
  • the surface protection film is locally overstretched by a sharp-edged embossing stamp, so that the pigmented marking layer of the multilayer film used in the process of the invention tears open and a light color remains in the stretched area.
  • the seal mark produced in this way is irreversibly incorporated into the surface protection film.
  • the embossing dies print the film against a smooth rubber roller as a counter-pressure roller, specifically from the adhesive side. The web thus pretreated is then placed on the plate and printed on.
  • the surface protection film preferably comprises two transparent carrier layers, between which a colored marking layer is arranged.
  • a colored marking layer In the areas where the marking layer is destroyed after embossing, the view of the semi-finished product underneath, which should be colored in contrast to the marking layer, is clear.
  • the marking layer could be colored blue and the semi-finished product white.
  • the seal mark then appears as a white imprint in the blue surface protection film.
  • a coating device for carrying out the method of the invention comprises at least: a feed device for a semifinished product, a film feed device for a surface protection film, an embossing roller with at least one embossing stamp with raised webs corresponding to the contours of the sealing marks, which embossing roller abuts at least with the webs of its embossing stamp on an elastic counter-pressure roller; and at least one pressure roller for pressing the surface protection film onto the semi-finished product.
  • a spreading roller known per se is preferably provided between the embossing of the sealing marks and the application of the film to the plate, so that the formation of folds and bubbles on the surface protection film applied is substantially reduced.
  • the embossing stamps are preferably applied to a bushing which can be pushed onto the stamping roller, so that they can be easily replaced and, depending on the width of the semifinished product produced, can be arranged next to one another in more or less large numbers.
  • the object is achieved by a method with the features of claim 10.
  • This embodiment is particularly suitable for semi-finished products with a roughness depth R z of 10 ... 60 ⁇ m.
  • the pressure rollers are provided with at least one raised relief made of an elastic material, through which the surface protection film in the area of the relief with its
  • Adhesive layer is applied to the rough surface of the semi-finished product and is only partially applied to the surface of the semi-finished product in the area outside the relief in the area of the roughness peaks.
  • the surface protection film there is an almost full-surface application of the surface protection film, it being clear to the person skilled in the art that, on a microscopic scale, individual air bubble inclusions can still be present or in particularly narrow ones Deepening of the surface no adhesion of the film can be achieved.
  • the areas outside the relief in relief are only printed to such an extent that the surface protection film is mostly only adhered to the raised areas of the rough surface.
  • part of the light passes through the film in the non-adhering areas and is reflected on the lightly colored surface of the semi-finished product.
  • a blue-colored surface protection film for example, which is placed on a white semi-finished product, the colors of the film and the semi-finished product underneath mix for the viewer, so that the film appears lighter here.
  • the seal marks make semi-finished products recognizable to everyone as original products from a particular manufacturer.
  • the seal brands preferably represent a company logo or other protected brands of the manufacturer. It is then difficult to imitate the semi-finished products, since the delivery without the seals shows the user that he does not have the desired original goods: If the seals were applied to imitation products, the violation of the brand would automatically be fulfilled.
  • the elasticity of the applied relief is essential to the invention. This must be adjusted so that the surface protection film is pressed almost over the entire surface onto the rough surface of the semi-finished product, so that the relief relief deforms elastically without damaging the surface of the semi-finished product.
  • a coating device with the features of claim 8 is particularly suitable for carrying out the method. It is advantageous here that the only difference to the existing systems is the relief reliefs applied to at least one pressure roller. By using a cut of a self-adhesive plastic film with the appropriate elasticity and thickness, this coating device can be easily manufactured by retrofitting.
  • Figure 1 shows a coating device for the first embodiment of the method in a schematic side view.
  • FIG. 2 a perspective roller of the device from FIG. 1 in a perspective view
  • FIG. 3 shows the structure of the surface protection film for the first embodiment of the procedure in a schematic sectional view
  • FIG. 4 shows a coating device for the second embodiment of a method in a schematic perspective view
  • FIG. 5 shows the contact point of the semi-finished product and the pressure roller in the device according to FIG. 4 in a schematic sectional side view.
  • a first coating device 100 is shown schematically in FIG. This can be set, for example, over the extraction area of a plate extrusion system.
  • a semifinished product 20 is withdrawn from the extruder via take-off rollers (not shown) and fed to a packaging system in which the endless semifinished product 20 is cut and palletized.
  • a surface protection film 12 which has an adhesive layer on its underside, is placed on the semi-finished product 11 and printed on it.
  • film feed devices 31, 32 are attached, which can be used alternately, so that the surface protection film 12 can be fed continuously and even if the supply roll for the surface protection film 12 changes, there is no need to interrupt the plate production.
  • the surface protection film 12 drawn off from one of the film feed devices 31, 32 is guided over a pair of rolls which consists of a counter-pressure roll 22 with an elastic coating and a stamping roll 23.
  • a spreader roll 27 can also be provided behind the pair of rolls 22, 23, the outward-directed spiral profile of which causes a slight pre-stretching transversely to the pull-off direction.
  • Fig. 3 shows the structure of the surface protection film 12 in section.
  • a colored marking layer 12.2 lies between transparent or partially transparent carrier layers 12.1, 12.3. This can either be partially transparent or opaque. It is only essential to the invention that it differs visually and that a color contrast arises in those areas in which the marking layer 12.2 is destroyed by overstretching.
  • the surface protection film 12 is coated on one side with an adhesive layer 12.4, preferably a pressure sensitive adhesive, which enables good adhesion to the semi-finished product 11, but at the same time also allows the surface protection film 12 to be removed easily and without residues after the semi-finished product 11 coated in this way has been processed.
  • Fig. 2 shows the securede roller 23 with counter-pressure roller 22 in a perspective view.
  • a deflection roller 26 is shown, which is not shown in FIG. 1.
  • the embossing roller 23 has, in the embodiment shown, pushed-on bushes with embossing dies 24, which have an engraved relief.
  • the relief has raised webs 25, the height of which is selected in coordination with the depth of penetration into the elastomeric coating of the counter-pressure roller such that local expansion of the surface protection film 12 takes place to such an extent that the colored marking layer 12.2 tears, whereas the tra - layers 12.1, 12.3 are so elastic that their expansion largely resets after passing through the die 24. What remains is a seal mark, which is formed by the visible cracks in the marking layer within the surface protection film 12.
  • a surface protection film with at least three layers is used, at least one of which is a marking layer which has a lower stretchability than a carrier layer and which is colored in a color-contrasting manner to the carrier layers in a partially transparent manner.
  • the further process step is provided to locally stretch the specially designed surface protection film to the crack of the marking layer by means of the embossing stamp. The cracks thus created remain visible and together form a seal mark that is permanently visible even on very smooth surfaces.
  • FIG. 4 schematically shows a second coating device for applying sealing marks 13 'to a semifinished product 11' to be covered with a surface protection film 12 ', which at least comprises: a feed device for a semifinished product 11', for example an extruded plastic sheet, a film feed device 20 'for a surface protection film 12', and pressure rollers 21 ', 22' for pressing the surface protection film 12 'onto the surface of the semi-finished product 11'.
  • the pressure roller 21 ' is provided with embossing reliefs 23', which are formed from blanks of an elastic, self-adhesive PVC plastic film with a thickness of approximately 325 ⁇ m.
  • the sealing marks 13' are destroyed again by detaching the surface protection film 12 'from the finished semi-finished product 10.
  • it is coated on at least one side with an adhesive or tackifier, for example with an acrylic layer or a natural rubber.
  • the adhesion is set in such a way that there is sufficient adhesion when transporting the semifinished product 10, but that the surface protective film 12 'can also be removed easily and quickly from the plastic sheet 11'.
  • the linear adhesive value measured according to the AFERA 4001 standard is, for example, approximately 65 cN / cm.
  • the surface protection film 12 ' is transparent and preferably colored in a clearly visible color contrast to the semifinished product 11', so that the sealing marks 13 'designed according to the invention can be recognized even from a distance and even under unfavorable light conditions.
  • the method according to the invention can be used in all systems of semi-finished products and surface protection films in which the rigidity of the surface protection film is combined with the roughness of the semi-finished product offers the possibility of achieving the effect of a differently intense coloring described below in order to produce a seal mark.
  • the roughness is characterized by the following key figures measured according to DIN ISO 4287 and 4288: a maximum roughness depth R max of 10 to 80 ⁇ m, an average roughness depth R z of 10 to 60 ⁇ m and an arithmetic mean roughness value R a of 2 to 10 ⁇ m
  • the thickness of the self-adhesive PVC plastic film must be selected as a relief in such a way that the surface protection film 12 'is pressed into the roughness tips of the surface of the semi-finished product 11'.
  • the surface protection film 12' In the areas outside the relief relief 23 ', the surface protection film 12' only rests on the tips of the surface of the semi-finished product 11 '. As a result, light passes through the transparent film 12 'and allows the color of the semifinished product 11' to shine through from the back.
  • the surface protection film 12 ' If the surface protection film 12 'is removed, it is pulled out of the microscopic surface structure of the semifinished product 11'.
  • the surface protection film 12 ' is deformed;
  • the embossed microscopic structures are mostly destroyed again, so that the surface of the film is smoothed again.
  • the seal mark 13 ' is in any case destroyed, because when the surface protective film 12' is re-applied by hand, only a superficial contact of the film occurs at the roughness tips of the semi-finished product. It is therefore impossible that the surface protection film 12 'of the original manufacturer can be placed on semi-finished products from a third party.
  • the seal mark 13 ' cannot be restored without the original embossed reliefs 23'.
  • sealing marks 13 ' directly to the withdrawal devices 21', 22 'in the manufacture of semi-finished products, it is also possible to use hand-held embossing stamps with embossed relief.

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  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Mechanical Engineering (AREA)
  • Shaping Of Tube Ends By Bending Or Straightening (AREA)
  • Laminated Bodies (AREA)
  • Application Of Or Painting With Fluid Materials (AREA)

Abstract

L'invention concerne un procédé pour appliquer une marque (13; 13') sur un produit semi-fini (11'), présentant une teinte claire, recouvert d'une feuille de protection superficielle (12') teintée de manière partiellement transparente. Selon ce procédé, les rouleaux presseurs (21, 22') sont pourvus d'un relief d'estampage (23') constitué d'un matériau élastique, lorsque le produit semi-fini présente une profondeur de rugosité Rz comprise entre 10 et 60 µm, lesdits rouleaux presseurs plaquant la couche adhésive de la feuille de protection superficielle (12'), dans la zone du relief d'estampage (23'), sur la surface rugueuse du produit semi-fini (11') et, dans la zone située à l'extérieur du relief d'estampage (23'), uniquement partiellement dans la zone des aspérités, sur la surface du produit semi-fini (11'). Lorsque les produits semi-finis présentent une profondeur de rugosité inférieure, on utilise une feuille de protection superficielle comportant au moins trois couches, au moins une couche étant une couche de marquage qui présente une élasticité inférieure à une couche de support et qui est teintée de manière partiellement transparente pour présenter un contraste par rapport aux couches de support. Avant d'être appliquée sur le produit semi-fini, la feuille de protection superficielle est introduite entre un rouleau de contre-pression élastique et un rouleau d'estampage comportant au moins un poinçon d'estampage pourvu d'éléments de liaison saillants, correspondant aux contours des marques et est partiellement étirée sur les éléments de liaison jusqu'à ce que des fissures apparaissent dans la couche de marquage teintée de manière partiellement transparente, de façon à permettre la formation d'une marque durable.
PCT/EP2004/009712 2003-09-22 2004-09-01 Procede pour appliquer une marque WO2005037528A2 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP04764677A EP1663619A2 (fr) 2003-09-22 2004-09-01 Procede pour appliquer une marque

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
DE2003144195 DE10344195B4 (de) 2003-09-22 2003-09-22 Verfahren zum Aufbringen einer Siegelmarke auf ein mit einer Oberflächenschutzfolie abzudeckendes Halbzeug
DE10344195.6 2003-09-22
DE200410012586 DE102004012586A1 (de) 2003-09-22 2004-03-12 Verfahren zum Aufbringen einer Siegelmarke
DE102004012586.4 2004-03-12

Publications (2)

Publication Number Publication Date
WO2005037528A2 true WO2005037528A2 (fr) 2005-04-28
WO2005037528A3 WO2005037528A3 (fr) 2005-08-04

Family

ID=34466007

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2004/009712 WO2005037528A2 (fr) 2003-09-22 2004-09-01 Procede pour appliquer une marque

Country Status (3)

Country Link
EP (1) EP1663619A2 (fr)
DE (1) DE102004012586A1 (fr)
WO (1) WO2005037528A2 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1813561A3 (fr) * 2006-01-27 2009-07-08 Veka AG Procédé destiné au revêtement de surfaces de profilés dotés de bandes de feuilles de revêtement et son dispositif
WO2011070102A1 (fr) * 2009-12-09 2011-06-16 Fluimedix Aps Procédé de production d'une structure comprenant une nanostructure
AT514827A1 (de) * 2013-09-30 2015-04-15 Isosport Verbundbauteile Oberflächenschutzfolie

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1226641A (fr) * 1967-03-08 1971-03-31
EP0537455A1 (fr) * 1991-09-25 1993-04-21 KARL DICKEL & Co. KG Feuille étirée en matière plastique thermoélastique pour emballer
US5670003A (en) * 1994-04-04 1997-09-23 Novavision, Inc. Holographic document and method for forming
US5693405A (en) * 1995-01-13 1997-12-02 Tredegar Industries, Inc. Masking film having embossed areas and unembossed areas
GB2333995A (en) * 1998-02-06 1999-08-11 Athlone Extrusions Dev Ltd Applying protective plastics film to plastics panel sheet
DE20111350U1 (de) * 2001-07-07 2001-10-11 Roethel Gmbh & Co Kg Laminiervorrichtung und kunststoffbeschichtete Papierbahn

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1226641A (fr) * 1967-03-08 1971-03-31
EP0537455A1 (fr) * 1991-09-25 1993-04-21 KARL DICKEL & Co. KG Feuille étirée en matière plastique thermoélastique pour emballer
US5670003A (en) * 1994-04-04 1997-09-23 Novavision, Inc. Holographic document and method for forming
US5693405A (en) * 1995-01-13 1997-12-02 Tredegar Industries, Inc. Masking film having embossed areas and unembossed areas
GB2333995A (en) * 1998-02-06 1999-08-11 Athlone Extrusions Dev Ltd Applying protective plastics film to plastics panel sheet
DE20111350U1 (de) * 2001-07-07 2001-10-11 Roethel Gmbh & Co Kg Laminiervorrichtung und kunststoffbeschichtete Papierbahn

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1813561A3 (fr) * 2006-01-27 2009-07-08 Veka AG Procédé destiné au revêtement de surfaces de profilés dotés de bandes de feuilles de revêtement et son dispositif
WO2011070102A1 (fr) * 2009-12-09 2011-06-16 Fluimedix Aps Procédé de production d'une structure comprenant une nanostructure
US9242408B2 (en) 2009-12-09 2016-01-26 Fluidmedix ApS Method of producing a structure comprising a nanostructure
AT514827A1 (de) * 2013-09-30 2015-04-15 Isosport Verbundbauteile Oberflächenschutzfolie
AT514827B1 (de) * 2013-09-30 2018-02-15 Isosport Verbundbauteile Ges M B H Oberflächenschutzfolie

Also Published As

Publication number Publication date
EP1663619A2 (fr) 2006-06-07
WO2005037528A3 (fr) 2005-08-04
DE102004012586A1 (de) 2005-09-29

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