EP3141399B1 - Procédé amélioré de production de moules métalliques, tels que des feuilles, des cylindres et analogues pourvus d'au moins une surface structurée et timbres métalliques obtenus selon ledit procédé - Google Patents

Procédé amélioré de production de moules métalliques, tels que des feuilles, des cylindres et analogues pourvus d'au moins une surface structurée et timbres métalliques obtenus selon ledit procédé Download PDF

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Publication number
EP3141399B1
EP3141399B1 EP16180441.4A EP16180441A EP3141399B1 EP 3141399 B1 EP3141399 B1 EP 3141399B1 EP 16180441 A EP16180441 A EP 16180441A EP 3141399 B1 EP3141399 B1 EP 3141399B1
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EP
European Patent Office
Prior art keywords
mould
portions
protective layer
structured surface
metal
Prior art date
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Application number
EP16180441.4A
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German (de)
English (en)
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EP3141399A1 (fr
Inventor
Pio Tosatto
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Flai Srl
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Flai Srl
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Priority to PL16180441T priority Critical patent/PL3141399T3/pl
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B44DECORATIVE ARTS
    • B44BMACHINES, APPARATUS OR TOOLS FOR ARTISTIC WORK, e.g. FOR SCULPTURING, GUILLOCHING, CARVING, BRANDING, INLAYING
    • B44B5/00Machines or apparatus for embossing decorations or marks, e.g. embossing coins
    • B44B5/02Dies; Accessories
    • B44B5/026Dies
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B44DECORATIVE ARTS
    • B44CPRODUCING DECORATIVE EFFECTS; MOSAICS; TARSIA WORK; PAPERHANGING
    • B44C1/00Processes, not specifically provided for elsewhere, for producing decorative surface effects
    • B44C1/22Removing surface-material, e.g. by engraving, by etching
    • B44C1/227Removing surface-material, e.g. by engraving, by etching by etching
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B44DECORATIVE ARTS
    • B44FSPECIAL DESIGNS OR PICTURES
    • B44F1/00Designs or pictures characterised by special or unusual light effects
    • B44F1/02Designs or pictures characterised by special or unusual light effects produced by reflected light, e.g. matt surfaces, lustrous surfaces

Definitions

  • the present invention relates to a process for producing metal moulds having at least one structured surface.
  • the invention also concerns the sheets obtained with this process.
  • the field of application of the present invention is that of metal moulds, such as sheets, cylinders and the like, used to impress, on melamine faced chipboard panels, decorative plastic laminates and the like, motifs or patterns, for example imitating the grains of wood, of wood pore, of stones, or other geometrical patterns and the like.
  • metal moulds provided with a structured surface, i.e. bearing the shape of the decorative pattern to be reproduced, which is transferred onto the respective panel by pressing.
  • metal moulds provided with structured surfaces are obtained by depositing layers or coatings of metal material (usually chrome) onto the structured surface, thereby obtaining a raised pattern that, after it has been stamped on the panel to be decorated, also has different degrees of matt (EP 2 060 658 B1 describing a method for treating a structured surface, in which the masks are removed after the relevant etch/chrome process has taken place).
  • the aforesaid prior art also has the disadvantage of allowing only a very limited range of degrees of gloss to be obtained, which in turn depend on the nature of the specific material used to reach the desired gloss effect.
  • the main object of the present invention is to provide an improved process for producing metal moulds provided with at least one structured surface which, unlike the prior art methods of this type, is simpler, more reliable and less costly.
  • an object of the invention is to provide a process of the aforesaid type, with which it is possible to obtain a structured surface from the same material of which the base mould is made and therefore without requiring to deposit coatings of auxiliary materials.
  • a further object of the invention is to provide a process of the aforesaid type which, unlike analogous prior art solutions, allows a wider range of degrees of gloss to be obtained.
  • the process of the invention makes it possible to obtain a metal mould provided with at least one structured surface in which, as no additional materials are used with respect to the material of which the actual mould is made, the production costs are lower and the method as a whole is also simpler, faster and more effective.
  • the mould with structured surface of the invention is made reliable and durable, also because the absence of coatings on the structured surface prevents adhesion of the panel thereto.
  • a matting solution makes it possible to obtain structured surfaces capable of giving the pattern different degrees of matt and glossy-matt nuances that are more numerous, marked and evident with respect to those that can be obtained with conventional surfaces, structured by means of additional metallic coatings.
  • the metal mould of the invention which in the example illustrated in the figures and described herein consists of a sheet, is indicated as a whole with 1 in Fig. 1 .
  • This comprises in particular a structured surface 2, bearing patterns or ornamental motifs 3 obtained by photo etching or using another technique for engraving said patterns on the metal surface 2 of the sheet 1.
  • the enlargement of an example of pattern 3 of the sheet of the invention is represented in Fig. 2 .
  • the structured surface obtained with the process of the invention is prepared from an initial sheet 4 in raw state ( Fig. 3a ), the surface 10 of which has previously been ground.
  • This surface 10 is therefore partially coated with a first layer 5 of resin, which reproduces the shape to be produced on the structured surface 2 of the sheet 1 of Fig. 1 , for example by screen printing or with other suitable digital systems ( Fig. 3b ).
  • the sheet thus prepared is then placed in contact with a corrosive solution, that etches corroded portions 6 on the surface 10 of the sheet 4 not covered by the protective layer 5 ( Fig. 3c ) .
  • a corrosive solution that etches corroded portions 6 on the surface 10 of the sheet 4 not covered by the protective layer 5 ( Fig. 3c ) .
  • a second protective layer 8 is then applied to the uncorroded portions 7 of the sheet 4, and the surface of the sheet thus obtained is subsequently treated with a matting solution suitable to create, on the unprotected corroded portions 6, a degree of matt gloss ( Fig. 3e ).
  • the structured surface 2 of Fig. 1 is obtained on the final sheet 1 of Fig. 3f , the pattern 3 of which is obtained by the combination of the glossy uncorroded portions 7 and of the corroded portions 9 having a degree of matt gloss ( Fig. 2 ).
  • the second protective layer 8 could be applied to the corroded portions 6 of the sheet of Fig. 3e , in this case obtaining a reverse distribution of the degrees of gloss with respect to that of Fig. 3f .
  • the sheet 1 of Fig. 1 could also have a structured surface on the opposite side to the one in view in the figure, thereby making it suitable for the simultaneous moulding of a panel on each face of the same sheet 1.
  • the distribution of the areas with different degree of gloss can be any, as a function of the pattern and of the aesthetic effect to be obtained.
  • the mould of the invention which can also have different forms to that of the sheet of Fig. 1 , such as a cylinder and the like, is suitable for moulding decorative plastic laminates and faced chipboard panels.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Laminated Bodies (AREA)
  • Casting Or Compression Moulding Of Plastics Or The Like (AREA)
  • Moulds For Moulding Plastics Or The Like (AREA)

Claims (7)

  1. Procédé de production de moules métalliques (1), pourvus d'au moins une surface structurée (2) portant un modèle ou un motif ornemental (3) obtenu par l'application, sur la surface (10) d'un moule de départ (4), d'une première couche protectrice (5) qui reproduit ledit modèle ou motif ornemental (3) et le traitement consécutif de la surface ainsi préparée avec une substance corrosive appropriée pour créer des parties corrodées (6), distinctes des parties non corrodées (7) coïncidant avec ladite couche protectrice (5), caractérisé en ce qu'il prévoit également l'application directement sur les parties non corrodées (7) susmentionnées de la surface (10) du moule (4), d'une seconde couche protectrice (8) et le traitement consécutif de ladite surface (10) ainsi obtenue avec une substance de matage, appropriée pour former une surface structurée (2) ayant des parties corrodées (6) avec un degré de brillant différent de celui des parties non corrodées (7) susmentionnées, dans lequel ladite couche protectrice (5) est retirée de ladite surface (10) du moule (4) après que ladite substance corrosive a été appliquée et ladite couche protectrice (8) est retirée de ladite surface (10) du moule (4) après que ladite substance de matage a été appliquée.
  2. Procédé selon la revendication 1, caractérisé en ce que la seconde couche protectrice (8) susmentionnée est appliquée sur lesdites parties non corrodées (7) de façon à obtenir des parties corrodées (9) avec un degré de brillant mat.
  3. Procédé selon la revendication 1, caractérisé en ce que ladite seconde couche protectrice (8) est appliquée sur lesdites parties corrodées (6) susmentionnées, obtenant ainsi des parties non corrodées (7) ayant un degré de brillant mat.
  4. Moule métallique, caractérisé en ce qu'il présente au moins une surface structurée (2) portant un modèle ou un motif ornemental (3) obtenu avec le procédé selon l'une ou plusieurs des revendications précédentes.
  5. Moule métallique selon la revendication 4, caractérisé en ce qu'il est une feuille, un cylindre ou similaire.
  6. Plastique décoratif laminé, caractérisé en ce qu'il est obtenu par moulage avec le moule selon la revendication 4.
  7. Panneau de particules revêtu, caractérisé en ce qu'il est obtenu par moulage avec le moule selon la revendication 4.
EP16180441.4A 2015-09-11 2016-07-20 Procédé amélioré de production de moules métalliques, tels que des feuilles, des cylindres et analogues pourvus d'au moins une surface structurée et timbres métalliques obtenus selon ledit procédé Active EP3141399B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PL16180441T PL3141399T3 (pl) 2015-09-11 2016-07-20 Ulepszony sposób wytwarzania metalowych form, takich jak arkusze, cylindry i tym podobne, zaopatrzonych w co najmniej jedną powierzchnię strukturalną oraz odciski metalowe otrzymane tym sposobem

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
ITUB2015A003556A ITUB20153556A1 (it) 2015-09-11 2015-09-11 Procedimento migliorato per la realizzazione di stampi metallici, quali lamiere, cilindri e similari provvisti di almeno una superficie strutturata e stampi metallici ottenuti con questo procedimento

Publications (2)

Publication Number Publication Date
EP3141399A1 EP3141399A1 (fr) 2017-03-15
EP3141399B1 true EP3141399B1 (fr) 2021-01-20

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ID=54884189

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EP16180441.4A Active EP3141399B1 (fr) 2015-09-11 2016-07-20 Procédé amélioré de production de moules métalliques, tels que des feuilles, des cylindres et analogues pourvus d'au moins une surface structurée et timbres métalliques obtenus selon ledit procédé

Country Status (5)

Country Link
EP (1) EP3141399B1 (fr)
ES (1) ES2860935T3 (fr)
IT (1) ITUB20153556A1 (fr)
PL (1) PL3141399T3 (fr)
PT (1) PT3141399T (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113978167B (zh) * 2021-10-25 2024-06-04 浙江云峰莫干山装饰建材有限公司 一种重组装饰材或重组装饰单板用模具下模的制作方法

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2060658A2 (fr) 2007-11-16 2009-05-20 Hueck Engraving GmbH & Co. KG Procédé de traitement d'une surface structurée
DE202012004375U1 (de) 2012-05-04 2012-06-11 Hueck Rheinische Gmbh Werkstoffplatte mit einer strukturierten Oberfläche
EP2497650A1 (fr) 2011-03-10 2012-09-12 Hueck Rheinische GmbH Procédé de traitement de la surface structurée d'un outil d'imprégnation
DE102012107827A1 (de) 2012-08-24 2014-02-27 Sandvik Surface Solutions Division Of Sandvik Materials Technology Deutschland Gmbh Verfahren zur Erzeugung von Glanzeffekten auf Presswerkzeugen
EP2848424A1 (fr) 2013-09-13 2015-03-18 Hueck Rheinische GmbH Procédé de fabrication d'une structure de surface sur un outil de presse par l'application de revêtements métalliques

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE1018156A3 (nl) * 2008-05-20 2010-06-01 Flooring Ind Ltd Sarl Werkwijze voor het vervaardigen van beklede panelen en bekleed paneel.
BE1021471B1 (nl) * 2012-04-03 2015-11-27 Flooring Industries Limited, Sarl Laminaatpaneel, werkwijze voor het vervaardigen van een laminaatpaneel en perselement om de werkwijze te verwezenlijken

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2060658A2 (fr) 2007-11-16 2009-05-20 Hueck Engraving GmbH & Co. KG Procédé de traitement d'une surface structurée
EP2497650A1 (fr) 2011-03-10 2012-09-12 Hueck Rheinische GmbH Procédé de traitement de la surface structurée d'un outil d'imprégnation
DE202012004375U1 (de) 2012-05-04 2012-06-11 Hueck Rheinische Gmbh Werkstoffplatte mit einer strukturierten Oberfläche
DE102012107827A1 (de) 2012-08-24 2014-02-27 Sandvik Surface Solutions Division Of Sandvik Materials Technology Deutschland Gmbh Verfahren zur Erzeugung von Glanzeffekten auf Presswerkzeugen
EP2848424A1 (fr) 2013-09-13 2015-03-18 Hueck Rheinische GmbH Procédé de fabrication d'une structure de surface sur un outil de presse par l'application de revêtements métalliques

Also Published As

Publication number Publication date
ITUB20153556A1 (it) 2017-03-11
EP3141399A1 (fr) 2017-03-15
PL3141399T3 (pl) 2021-09-13
ES2860935T3 (es) 2021-10-05
PT3141399T (pt) 2021-03-31

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