EP1640129A2 - Verfahren zur Herstellung von Reliefs auf keramischen Fliesen - Google Patents

Verfahren zur Herstellung von Reliefs auf keramischen Fliesen Download PDF

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Publication number
EP1640129A2
EP1640129A2 EP05020414A EP05020414A EP1640129A2 EP 1640129 A2 EP1640129 A2 EP 1640129A2 EP 05020414 A EP05020414 A EP 05020414A EP 05020414 A EP05020414 A EP 05020414A EP 1640129 A2 EP1640129 A2 EP 1640129A2
Authority
EP
European Patent Office
Prior art keywords
mold
punch
decoration
layer
press
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.)
Ceased
Application number
EP05020414A
Other languages
English (en)
French (fr)
Other versions
EP1640129A3 (de
Inventor
Sergio Tosi
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.)
Tosilab SpA
Original Assignee
Tosi SpA
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 Tosi SpA filed Critical Tosi SpA
Publication of EP1640129A2 publication Critical patent/EP1640129A2/de
Publication of EP1640129A3 publication Critical patent/EP1640129A3/de
Ceased legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B44—DECORATIVE ARTS
    • B44C—PRODUCING DECORATIVE EFFECTS; MOSAICS; TARSIA WORK; PAPERHANGING
    • B44C3/00—Processes, not specifically provided for elsewhere, for producing ornamental structures
    • B44C3/04—Modelling plastic materials, e.g. clay
    • B44C3/046—Modelling plastic materials, e.g. clay using a modelling surface, e.g. plate
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B28—WORKING CEMENT, CLAY, OR STONE
    • B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
    • B28B17/00—Details of, or accessories for, apparatus for shaping the material; Auxiliary measures taken in connection with such shaping
    • B28B17/0063—Control arrangements
    • B28B17/0081—Process control
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B28—WORKING CEMENT, CLAY, OR STONE
    • B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
    • B28B7/00—Moulds; Cores; Mandrels
    • B28B7/34—Moulds, cores, or mandrels of special material, e.g. destructible materials
    • B28B7/346—Manufacture of moulds
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B28—WORKING CEMENT, CLAY, OR STONE
    • B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
    • B28B7/00—Moulds; Cores; Mandrels
    • B28B7/34—Moulds, cores, or mandrels of special material, e.g. destructible materials
    • B28B7/348—Moulds, cores, or mandrels of special material, e.g. destructible materials of plastic material or rubber
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B44—DECORATIVE ARTS
    • B44C—PRODUCING DECORATIVE EFFECTS; MOSAICS; TARSIA WORK; PAPERHANGING
    • B44C1/00—Processes, not specifically provided for elsewhere, for producing decorative surface effects
    • B44C1/22—Removing surface-material, e.g. by engraving, by etching
    • B44C1/228—Removing surface-material, e.g. by engraving, by etching by laser radiation
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B28—WORKING CEMENT, CLAY, OR STONE
    • B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
    • B28B3/00—Producing shaped articles from the material by using presses; Presses specially adapted therefor
    • B28B3/02—Producing shaped articles from the material by using presses; Presses specially adapted therefor wherein a ram exerts pressure on the material in a moulding space; Ram heads of special form
    • B28B3/021—Ram heads of special form

Definitions

  • the invention relates to manufacturing of ceramic tiles with relief decorations.
  • the ceramic industry produces tiles having different decorative relief patterns, for example drawings or geometrical figures, or tiles with particular surface lines or other means for obtaining the desired aesthetic effect.
  • the relief decorations are obtained on the tiles during molding, by the a press punch having a pattern to be obtained impressed in reverse.
  • test stage which includes:
  • the production molding punch can be prepared, otherwise, if the result is not satisfactory, the whole procedure is repeated, beginning from a new aluminium plate.
  • the aluminium plate is used to transfer the decoration pattern onto the punch of the production mold, by a known technique called "heat gumming", which includes substantially applying of layers of gummy material onto the surface, which will push against the tile, with the layers of gum being obviously complementary to the cuts made on the aluminium plate.
  • Another disadvantage of the above mentioned technique relates to the technique of cutting of the aluminium plate, which does not allow to obtain decorations with too small details, because of obvious limits resulting from the use of mechanical tools.
  • the gum parts of the punch are obviously subjected to wear, therefore, they must be reconstructed at programmed intervals, in order to maintain the obtained tiles within the fixed quality standards.
  • the reconstruction of the gummy parts of the punch requires the removal of the worn gum and the new heat gumming by the aluminium plate carrying the mold.
  • the object of the present invention is to propose a method, which allows even complicated decorations to be obtained, with very small details, avoiding the use of the aluminium plate and all the drawbacks resulting therefrom.
  • Another object of the present invention is to render the prove step easier, allowing test samples to be performed in a rapid and cheap way, and to start the production immediately, once the final decoration has been obtained.
  • a further object of the present invention is to avoid possible differences in the decoration mould between one gumming and another of the molding punch, thus assuring identical results in the tiles molding.
  • the method proposed by the present invention allows relief decorations to be obtained on ceramic tiles, indicated with reference numeral 1 in the above drawings.
  • the tiles 1 are molded by a press 4, whose punch 40 has a pattern to be obtained in reverse.
  • the method includes a first step, which allows to apply stably, on one or more punches 40, removed from the relative press 4, a smooth layer S of natural or synthetic material, which can be processed with a laser, e.g. of gummy or polymeric type ( Figure 1).
  • the applied layer has a uniform thickness, suitably bigger with respect to the maximum depth of a prefixed decoration relief.
  • the second step includes cutting the decoration mold M (that is the reverse pattern of the decoration) on the layer 3 of a relative punch 40, by means of a laser beam controlled by an electronic processor (not shown), in which the decoration pattern to be obtained is stored in digital form ( Figure 2).
  • the third step of the method includes mounting of the punch 40 to a press 4, with the mold M turned toward the upper surface 1a of a tile 1, on which the decoration will be molded ( Figure 3).
  • the production starts immediately, using the already mounted punch 40, otherwise, if the result is not satisfying, it is necessary to dismount the punch, modify the digital pattern stored in the electronic processor and then, make the modified decoration once more, by the above mentioned laser beam, on a clear layer S of another punch 40, which is mounted in its turn on the press 4, to mold a new sample of tiles 1.
  • the mounted punch 40 is already adapted, and therefore it is possible to pass directly to the production without further operations.
  • a new mold M is punched on the clear layer S of another punch 40, using the same laser technique described previously.
  • the new punch 40 is mounted on the press 4 to substitute the one with the worn mold M.
  • the mold M can be truly reproduced also on the base of complicated patterns with very small details; the high definition of the mold M allows to raise the quality of the decoration obtained on the tiles, without considerable increase of cost.
  • the particular cutting technique allows to reproduce the same mold M an indefinite number of times, perfectly identical, so as to avoid differences between the tiles molded with different molds.
  • the described method is advantageous with respect to the prior art, because the prove step for obtaining the final decoration is much quicker and cheaper, thus avoiding the waste of time and costs for cutting the aluminium plate and, once the result is satisfactory, it allows process to begin without any further operations, so as to start the production, with obvious advantages.
  • the punches 40 with the worn molds, or carrying the decorations not suiting the final one, are naturally regenerated by the removal of the layer S to eliminate, and subsequent application of a new smooth layer S.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Mechanical Engineering (AREA)
  • Ceramic Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Dispersion Chemistry (AREA)
  • Automation & Control Theory (AREA)
  • Physics & Mathematics (AREA)
  • Health & Medical Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Optics & Photonics (AREA)
  • Toxicology (AREA)
  • Devices For Post-Treatments, Processing, Supply, Discharge, And Other Processes (AREA)
EP05020414A 2004-09-21 2005-09-20 Verfahren zur Herstellung von Reliefs auf keramischen Fliesen Ceased EP1640129A3 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
ITBO20040579 ITBO20040579A1 (it) 2004-09-21 2004-09-21 Metodo per la realizzazione di decori in rilievo su piastrelle ceramiche

Publications (2)

Publication Number Publication Date
EP1640129A2 true EP1640129A2 (de) 2006-03-29
EP1640129A3 EP1640129A3 (de) 2007-05-02

Family

ID=35645837

Family Applications (1)

Application Number Title Priority Date Filing Date
EP05020414A Ceased EP1640129A3 (de) 2004-09-21 2005-09-20 Verfahren zur Herstellung von Reliefs auf keramischen Fliesen

Country Status (2)

Country Link
EP (1) EP1640129A3 (de)
IT (1) ITBO20040579A1 (de)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT202300014226A1 (it) * 2023-07-07 2025-01-07 Siti B & T Group Spa Procedimento per l’ottenimento di tamponi di pressatura rivestiti per la realizzazione di lastre strutturate in materiale ceramico
IT202300014769A1 (it) * 2023-07-14 2025-01-14 Annovi S R L Dispositivo di pressatura di polveri ceramiche

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19756327A1 (de) * 1997-12-18 1999-07-01 Polywest Kunststofftechnik Form für das rotative Bedrucken, Beschichten oder Prägen von bahnförmigen Materialien und Verfahren zur Herstellung der Form
IT1310821B1 (it) * 1999-09-08 2002-02-22 Sergio Tosi Metodo per realizzare matrici utilizzabili per effettuare ladecorazione di piastrelle ceramiche.
FR2808240B1 (fr) * 2000-04-27 2003-03-07 Gravure Et Prec Gep Procede de fabrication d'une plaque gravee pour la reproduction par marquage a chaud, et plaque gravee obtenue
ITBO20020402A1 (it) * 2002-06-24 2003-12-24 Serigrafia Tosi S R L Metodo per la realizzazione di decori in rilievo su piastrelle ceramiche ed apparecchiatura che attua tale metodo
CA2418619A1 (en) * 2003-02-10 2004-08-10 Nino V. Scanni Process for making molds

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT202300014226A1 (it) * 2023-07-07 2025-01-07 Siti B & T Group Spa Procedimento per l’ottenimento di tamponi di pressatura rivestiti per la realizzazione di lastre strutturate in materiale ceramico
IT202300014769A1 (it) * 2023-07-14 2025-01-14 Annovi S R L Dispositivo di pressatura di polveri ceramiche

Also Published As

Publication number Publication date
EP1640129A3 (de) 2007-05-02
ITBO20040579A1 (it) 2004-12-21

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