EP1977872A2 - Verfahren zur Dekoration eines keramischen Rohlings, insbesondere einer Fliese - Google Patents

Verfahren zur Dekoration eines keramischen Rohlings, insbesondere einer Fliese Download PDF

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Publication number
EP1977872A2
EP1977872A2 EP08103145A EP08103145A EP1977872A2 EP 1977872 A2 EP1977872 A2 EP 1977872A2 EP 08103145 A EP08103145 A EP 08103145A EP 08103145 A EP08103145 A EP 08103145A EP 1977872 A2 EP1977872 A2 EP 1977872A2
Authority
EP
European Patent Office
Prior art keywords
base support
ceramic base
ceramic
soft
decoration
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
EP08103145A
Other languages
English (en)
French (fr)
Other versions
EP1977872A3 (de
Inventor
Roberto Schianchi
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.)
Tsc SpA
Original Assignee
Tsc 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 Tsc SpA filed Critical Tsc SpA
Publication of EP1977872A2 publication Critical patent/EP1977872A2/de
Publication of EP1977872A3 publication Critical patent/EP1977872A3/de
Ceased legal-status Critical Current

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Classifications

    • 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
    • B28B11/00—Apparatus or processes for treating or working the shaped or preshaped articles
    • B28B11/001—Applying decorations on shaped articles, e.g. by painting
    • 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
    • B28B11/00—Apparatus or processes for treating or working the shaped or preshaped articles
    • B28B11/04—Apparatus or processes for treating or working the shaped or preshaped articles for coating or applying engobing layers
    • B28B11/044—Apparatus or processes for treating or working the shaped or preshaped articles for coating or applying engobing layers with glaze or engobe or enamel or varnish
    • 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
    • B28B11/00—Apparatus or processes for treating or working the shaped or preshaped articles
    • B28B11/04—Apparatus or processes for treating or working the shaped or preshaped articles for coating or applying engobing layers
    • B28B11/048—Apparatus or processes for treating or working the shaped or preshaped articles for coating or applying engobing layers by spraying or projecting
    • 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
    • B28B13/00—Feeding the unshaped material to moulds or apparatus for producing shaped articles; Discharging shaped articles from such moulds or apparatus
    • B28B13/02—Feeding the unshaped material to moulds or apparatus for producing shaped articles
    • B28B13/0215—Feeding the moulding material in measured quantities from a container or silo
    • B28B13/022—Feeding several successive layers, optionally of different materials
    • 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
    • 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
    • B28B3/12—Producing shaped articles from the material by using presses; Presses specially adapted therefor wherein one or more rollers exert pressure on the material
    • B28B3/123—Producing shaped articles from the material by using presses; Presses specially adapted therefor wherein one or more rollers exert pressure on the material on material in moulds or on moulding surfaces moving continuously underneath or between the rollers, e.g. on an endless belt
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41M—PRINTING, DUPLICATING, MARKING, OR COPYING PROCESSES; COLOUR PRINTING
    • B41M5/00—Duplicating or marking methods; Sheet materials for use therein
    • B41M5/0041—Digital printing on surfaces other than ordinary paper
    • B41M5/0047—Digital printing on surfaces other than ordinary paper by ink-jet printing
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41M—PRINTING, DUPLICATING, MARKING, OR COPYING PROCESSES; COLOUR PRINTING
    • B41M5/00—Duplicating or marking methods; Sheet materials for use therein
    • B41M5/0041—Digital printing on surfaces other than ordinary paper
    • B41M5/007—Digital printing on surfaces other than ordinary paper on glass, ceramic, tiles, concrete, stones, etc.

Definitions

  • the technical field relating to the present invention is that concerning methods for decorating a ceramic base support, in particular a tile.
  • Ceramic field experts know many wet or dry systems to apply decorations on ceramic tiles, which are then transported in a suitable furnace for stably fixing the structure of the tile thus decorated.
  • a first known wet system comprises a decorating roller made up of a cylindrical sleeve, preferably in silicone, wound on a rigid support and with a plurality of pits defining a decoration on the outside.
  • the sleeve cooperates with a feeding apparatus, which feeds the pits with a liquid, enamel based substance and with a doctor which acts on the outer surface of the sleeve itself to remove the enamel in excess.
  • the upper arm of a conveyor located beneath the decorating roller, carries the tiles to decorate, which are constituted by pressed ceramic powders.
  • One variant of such a system provides fixing of the sleeve to two heads keyed on the axis of the decorating roller, the heads enabling stretching of the sleeve; and the usage of two idle rollers internally of the sleeve, respectively to abut the doctor and press the sleeve on the tiles.
  • a second known wet system comprises the usage of the so-called “silk screens”, with flat or folded configuration, to provide a cylindrical film fixed at two heads, which allow its stretching, keyed on the shaft of a decorating roller.
  • the screen comprises a plurality of micro-holes, defining a predetermined decoration, through which a liquid enamel based substance is forced to pass, which substance then deposits itself on the surface of the tile, made up of pressed ceramic powders.
  • the known dry systems provide for the usage of the so-called “sleeve”, made up of an endless belt, on which a plurality of pits are made which are filled with enamel, in granulated and/or powdery form, by means of a prefixed feeder; the enamel in excess being removed by a suitable apparatus.
  • the ceramic tiles to decorate are transported by the upper arm of a conveyor, located beneath the lower tip end of the "sleeve".
  • the desired decoration on a tile, made up of pressed ceramic powders is the result of the combination of a plurality of elementary decorations, each being obtained by means of a corresponding apparatus, for example of the above-described type.
  • the decoration assembly derives form the combination of more apparatuses, arranged in cascade, and this means disadvantages in terms of implementation costs and subsequent maintenance costs.
  • a very important disadvantage concerning the decoration assemblies is their extremely low and limited flexibility, because a change of decoration requires intervening on the corresponding apparatus, for example substituting the decorating roller, the silicone sleeve or the screen in wet systems, or the "sleeve" in dry systems.
  • machine stops Such substitution leads to non-negligible technical times, during which the apparatuses are not productive (so-called “machine stops") and, not less important to the need to stock a plurality of decorating rollers, silicone sleeves, silk screens or sleeves.
  • This problem is principally a result of the coarse granulometry size caused by this kind of decoration, based on the usage of powder enamels, and the more the decoration is thin and/or filiform, the more it is problematic.
  • Another object of the invention is to provide a method for decorating a ceramic base support, whose implementation implies rotating means-free assemblies.
  • a still another object of the present invention consists in providing an extremely reliable and versatile method which enables a clear and defined decoration of the ceramic base support prior to pressing step.
  • Another object of the invention is to provide a decorating method which enables to obtain a ceramic base support characterized by quality and production costs parameters, respectively superior and inferior to the ones achievable by means of the known systems.
  • a further object consists in providing a method particularly flexible, such that it allows to change easily and quickly the decoration to realize, and to avoid the non-productive steps of the operating process characterizing the known systems (so called "machine stops").
  • a method for decorating a ceramic base support characterized in that it comprises the following steps: depositing a powdery layer of ceramic material, in order to define a "soft" ceramic base support; applying liquid ceramic enamels on the surface of the "soft" ceramic base support in order to provide a decoration proof; pressing the "soft" ceramic base support and the related decoration proof in order to provide a decorated "compressed” ceramic base support.
  • the operating steps of a preferred embodiment of the proposed method for decorating a ceramic base support, in particular a tile are the following:
  • the application step of liquid ceramic enamels is carried out by means of a head 3, of the ink jet type, provided with a plurality of nozzles 4, able to dispense said enamels on the surface 2 of the "soft" base support 1.
  • the "compressed” ceramic base support 10 After final pressing the "soft" ceramic base support 1, the "compressed” ceramic base support 10 thus obtained is advantageously introduced in a known baking furnace (not shown for sake of clarity) to stabilize its structure and to give it the predetermined mechanical properties.
  • the "compressed" ceramic base support 10 can be subjected to further operating steps prior to its introduction in the baking furnace.
  • the application step of liquid ceramic enamels is carried out by means of a head 3, of the ink jet type, provided with a plurality of nozzles 4, able to dispense said enamels on the surface 2a of the "pre-compacted" ceramic base support 17.
  • the “compressed” ceramic base support 10 thus obtained is introduced in a known baking furnace (not shown) to stabilize its structure and to give it the predetermined mechanical properties.
  • the "compressed" ceramic base support 10 can be subjected to further operating steps prior to its introduction in the baking furnace, as well.
  • the head 3 moving step with respect to the "soft" ceramic base support 1 or the "pre-compacted" one 17, is controlled by means of a processing software of the predetermined decoration proof D.
  • the movement of the head 3 with respect to the ceramic base support (1, 17) can be carried out in an unique longitudinal direction, or in two longitudinal and transverse orthogonal directions.
  • the nozzles 4 of the head 3 cover all the transverse extension of the ceramic base support (1, 17) and the relative movement is provided in the longitudinal direction of the relative advancement.
  • the head 3 is advantageously movable relative to the ceramic base support (1, 17), both longitudinally, in the direction of the relative advancement, and transversely.
  • the decorations fixing is controlled by the resolution power achievable by means of the ink jet type head, and therefore by the number of nozzles required.
  • the minimum thickness of the decoration in contrast to the known art, allows to maintain the maximum clearness and definition values of the same even after the final pressing step.
  • the proposed method does not advantageously require to be actuated by means of apparatuses equipped with rotating components, consequently offering more flexibility and reliability of the operating steps.
  • the inventive method allows extremely defined and complex decorations also on projecting or recessed portions of the ceramic tile by means of a final pressed plate provided with a corresponding and appropriate known shaping to realize such portions.
  • the high definition is guaranteed by an unique pressing step of the "soft" or “pre-compacted” ceramic base support, on which the decoration proof has already been applied; while in the known art, the "soft" base support is generally pressed first and decorated only after.
  • the method according to the invention assures not only optimal definition and clearness parameters of the decorations, but also allows to strongly limit costs and dimensions of the assemblies thanks to the lack of silos and of conveyors and weighing machines required in such known assemblies.
  • the inventive method allows to prevent possible fouling of the head and relative nozzles since the application of the liquid ceramic enamels is provided on relatively low temperature base supports and without high humidity rates.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Ceramic Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Structural Engineering (AREA)
  • Finishing Walls (AREA)
  • Devices For Post-Treatments, Processing, Supply, Discharge, And Other Processes (AREA)
EP08103145A 2007-04-04 2008-03-28 Verfahren zur Dekoration eines keramischen Rohlings, insbesondere einer Fliese Ceased EP1977872A3 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT000248A ITBO20070248A1 (it) 2007-04-04 2007-04-04 Procedimento per la decorazione di un supporto ceramico, in particolare di una piastrella

Publications (2)

Publication Number Publication Date
EP1977872A2 true EP1977872A2 (de) 2008-10-08
EP1977872A3 EP1977872A3 (de) 2010-09-01

Family

ID=39645368

Family Applications (1)

Application Number Title Priority Date Filing Date
EP08103145A Ceased EP1977872A3 (de) 2007-04-04 2008-03-28 Verfahren zur Dekoration eines keramischen Rohlings, insbesondere einer Fliese

Country Status (2)

Country Link
EP (1) EP1977872A3 (de)
IT (1) ITBO20070248A1 (de)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT201800007720A1 (it) * 2018-08-01 2020-02-01 System Ceram Spa Dispositivo e metodo per la decorazione in massa di prodotti ceramici
IT201800010922A1 (it) * 2018-12-10 2020-06-10 System Ceramics S P A Metodo per la decorazione in spessore di una lastra ceramica
IT201900004593A1 (it) * 2019-03-27 2020-09-27 Errevi Elett S R L Metodo ed impianto per la formazione di lastre ceramiche
EP3750678A1 (de) * 2019-06-11 2020-12-16 Granitifiandre Societa' Per Azioni Verfahren und anlage zur herstellung von massedekorierten keramikplatten
CN113905862A (zh) * 2019-06-06 2022-01-07 系统陶瓷股份公司 用于生产陶瓷板或瓷砖的方法

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1334811A2 (de) 2002-02-07 2003-08-13 System S.p.A. Verfahren und Vorrichtung zum Dekorieren von keramischen Fliesen oder Platten
EP1403019A2 (de) 2002-09-24 2004-03-31 Paolo Malavasi Vorrichtung zur Herstellung einer Art von Dekorationen auf keramischen Fliesen

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB8702813D0 (en) * 1987-02-07 1987-03-11 Marshalls Mono Ltd Concrete units
ES2188391B1 (es) * 2001-08-17 2004-10-16 Esmalglass, S.A. Procedimiento para fabricar baldosas ceramicas.

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1334811A2 (de) 2002-02-07 2003-08-13 System S.p.A. Verfahren und Vorrichtung zum Dekorieren von keramischen Fliesen oder Platten
EP1403019A2 (de) 2002-09-24 2004-03-31 Paolo Malavasi Vorrichtung zur Herstellung einer Art von Dekorationen auf keramischen Fliesen

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT201800007720A1 (it) * 2018-08-01 2020-02-01 System Ceram Spa Dispositivo e metodo per la decorazione in massa di prodotti ceramici
IT201800010922A1 (it) * 2018-12-10 2020-06-10 System Ceramics S P A Metodo per la decorazione in spessore di una lastra ceramica
WO2020121101A1 (en) * 2018-12-10 2020-06-18 System Ceramics S.P.A. Method for decorating in thickness a ceramic slab
CN113165206A (zh) * 2018-12-10 2021-07-23 系统陶瓷股份公司 在厚度上装饰陶瓷板的方法
CN113165206B (zh) * 2018-12-10 2022-11-11 系统陶瓷股份公司 在厚度上装饰陶瓷板的方法
US11926072B2 (en) 2018-12-10 2024-03-12 System Ceramics S.P.A. Method for decorating in thickness a ceramic slab
IT201900004593A1 (it) * 2019-03-27 2020-09-27 Errevi Elett S R L Metodo ed impianto per la formazione di lastre ceramiche
CN113905862A (zh) * 2019-06-06 2022-01-07 系统陶瓷股份公司 用于生产陶瓷板或瓷砖的方法
CN113905862B (zh) * 2019-06-06 2023-08-25 系统陶瓷股份公司 用于生产陶瓷板或瓷砖的方法
EP3750678A1 (de) * 2019-06-11 2020-12-16 Granitifiandre Societa' Per Azioni Verfahren und anlage zur herstellung von massedekorierten keramikplatten

Also Published As

Publication number Publication date
EP1977872A3 (de) 2010-09-01
ITBO20070248A1 (it) 2008-10-05

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