WO2020058906A1 - Process for the manufacture of slabs of ceramic and/or stone material - Google Patents

Process for the manufacture of slabs of ceramic and/or stone material Download PDF

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Publication number
WO2020058906A1
WO2020058906A1 PCT/IB2019/057924 IB2019057924W WO2020058906A1 WO 2020058906 A1 WO2020058906 A1 WO 2020058906A1 IB 2019057924 W IB2019057924 W IB 2019057924W WO 2020058906 A1 WO2020058906 A1 WO 2020058906A1
Authority
WO
WIPO (PCT)
Prior art keywords
ceramic
stone material
leveling
recesses
supporting element
Prior art date
Application number
PCT/IB2019/057924
Other languages
French (fr)
Inventor
Fabio TAROZZI
Original Assignee
Siti - B&T Group S.P.A.
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 Siti - B&T Group S.P.A. filed Critical Siti - B&T Group S.P.A.
Publication of WO2020058906A1 publication Critical patent/WO2020058906A1/en

Links

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
    • B28B1/00—Producing shaped prefabricated articles from the material
    • B28B1/005—Devices or processes for obtaining articles having a marble appearance
    • 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
    • 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
    • B28B13/0295—Treating the surface of the fed layer, e.g. removing material or equalization of the surface
    • 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
    • B28B7/0064—Moulds characterised by special surfaces for producing a desired surface of a moulded article, e.g. profiled or polished moulding 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
    • B29C67/00—Shaping techniques not covered by groups B29C39/00 - B29C65/00, B29C70/00 or B29C73/00
    • B29C67/24—Shaping techniques not covered by groups B29C39/00 - B29C65/00, B29C70/00 or B29C73/00 characterised by the choice of material
    • B29C67/242—Moulding mineral aggregates bonded with resin, e.g. resin concrete
    • B29C67/243—Moulding mineral aggregates bonded with resin, e.g. resin concrete for making articles of definite length

Definitions

  • the present invention relates to a process for the manufacture of slabs of ceramic and/or stone material.
  • the manufacture of slabs made of ceramic and/or stone material generally comprises a deposition phase of a basic material, which can be made up of a ceramic material or a mixture of minerals in granular form (e.g. marble, granite, glass, fragments of mirror, and/or others) as well as quartz powder and, in fact, resins that act as binders, on a supporting element, such as a belt or a mould, to form a slab to be compacted, and a subsequent pressing phase, so as to obtain a compacted slab.
  • a basic material which can be made up of a ceramic material or a mixture of minerals in granular form (e.g. marble, granite, glass, fragments of mirror, and/or others) as well as quartz powder and, in fact, resins that act as binders, on a supporting element, such as a belt or a mould, to form a slab to be compacted, and a subsequent pressing phase, so as to obtain a compacted slab.
  • a supporting element such as a
  • the slabs thus obtained may have an even coloring, may have flakes of various sizes and colors or veins depending on the type of loaded material.
  • the main aim of the present invention is to devise a process for the manufacture of slabs of ceramic and/or stone material that allows obtaining surfaces with different structures and different aesthetic effects compared to the products known today.
  • one object is to obtain surfaces with protrusions or recesses with a depth of even more than 2 mm.
  • Another object of the present invention is to devise a process for the manufacture of slabs of ceramic and/or stone material which allows overcoming the aforementioned drawbacks of the prior art in the context of a simple, rational, easy, effective to use and affordable solution.
  • Figure 1 is a schematic representation of the supply phase of a supporting element according to the invention.
  • Figure 1A is a section of the supporting element of Figure 1;
  • Figure 2 is a schematic representation of the delivery phase of a ceramic and/or stone material on the supporting element of Figure 1 , in a first embodiment of the process according to the invention
  • Figure 2A is a section of the supporting element following the delivery phase of Figure 2;
  • Figure 3 is a schematic cross-sectional representation of the leveling phase of the delivered ceramic and/or stone material, in the first embodiment of the process according to the invention
  • Figure 4 is a schematic cross-sectional representation of the pressing phase of the leveled ceramic and/or stone material
  • Figure 5 is an axonometric view of a slab obtained with the process according to the invention in the first embodiment
  • Figure 6 is a schematic cross-sectional representation of the first delivery phase of a first ceramic and/or stone material onto the supporting element in a second embodiment of the process according to the invention
  • Figure 7 is a schematic cross-sectional representation of the first leveling phase of the first delivered ceramic and/or stone material
  • Figure 8 is a schematic cross-sectional representation of the second delivery phase of a second ceramic and/or stone material above the first ceramic and/or stone material;
  • Figure 9 is a schematic cross-sectional representation of the second leveling phase of the second delivered ceramic and/or stone material
  • Figure 10 is an axonometric view of a slab obtained with the process according to the invention in the second embodiment.
  • the process for the manufacture of slabs of ceramic and/or stone material according to the invention comprises at least one supply phase of at least one supporting element 1 provided with a plurality of recesses 2.
  • the supporting element 1 defines a bottom surface la, corresponding to the bottom of the recesses 2, and a top surface lb, corresponding to the top of the recesses 2.
  • the recesses feature depth values ranging from 1 mm to 4 mm.
  • the supporting element 1 is positioned on a load-bearing top 3, which can be of the fixed type or preferably movable forward along a direction of movement 4.
  • the process then involves a delivery phase of at least one ceramic and/or stone material 5,6 in the form of powder and/or flakes on the supporting element 1 so as to fill the recesses 2 and protrude above these.
  • the delivery of the ceramic and/or stone material 5,6 is therefore such as to exceed the top surface lb of the supporting element 1, so as to define a body to be compacted C that fills the recesses 2 and that protrudes above these.
  • the delivery phase is preferably carried out by means of a hopper 7, having a width substantially equal to that of the supporting element 1, which is adapted to discharge the ceramic and/or stone material 5,6 onto the supporting element 1 during the movement of the load-bearing top 3. It cannot however be ruled out that the load-bearing top 3 is fixed and that the hopper 7 can be moved in relation thereto.
  • the material 5,6 can be of the ceramic type, i.e. based on clay, silica, in the form of atomized products, grains or flakes, and/or stone (such as marble, granite, minerals or other natural stones) in the form of powder and/or granules and/or flakes and mixed with a cement or resinous binder.
  • the ceramic and/or stone material 5,6 may consist of a single type of material, or of a plurality of primary materials of different types and/or with different colors, which may be mixed together or charged in a stratified manner.
  • a leveling phase of the ceramic and/or stone material 5,6 is performed so as to define at least one substantially flat pressing surface 8.
  • the leveling phase is performed by means of a leveling element 9, which has a leveling profile 9a adapted to contact the body to be compacted C so as to equalize the amount of ceramic and/or stone material 5,6 along the entire extension of the supporting element 1.
  • Leveling of the ceramic and/or stone material 5,6 therefore allows preventing the formation of different density areas, which can then cause structural lack of homogeneity following the pressing phase described below.
  • the leveling element 9 can be separate and independent from the hopper 7, or it can be locked together with it, in which case the leveling phase immediately follows the delivery phase.
  • the extension of the leveling element 9 is substantially the same as that of the hopper 7. Following the leveling phase, the thickness of the body to be compacted C, i.e. the distance from the bottom surface la to the pressing surface 8 is substantially constant.
  • a pressing phase is performed of the ceramic and/or stone material 5,6 which is leveled at the point where the pressing surface 8 is located so as to obtain a pressed slab L. Pressing is performed by means of a pressing element 10 adapted to exert a predefined pressure on the pressing surface 8.
  • the slab L then has a visible face La, corresponding to the face facing the load- bearing top 3, and a laying face Lb, corresponding to the face facing upwards.
  • the visible face La has a plurality of protrusions S and/or recesses corresponding to the negative side of the supporting element 1 and a basic element B associated with said protrusions S.
  • the delivery phase requires that only one ceramic and/or stone material 5 is delivered onto the supporting element 1 and that only one leveling phase is therefore performed above the top surface lb.
  • both the protrusions S and the basic element B are made of the first ceramic and/or stone material 5.
  • the delivery phase comprises a first delivery of at least a first ceramic and/or stone material 5, so as to fill at least the recesses 2, and at least a second delivery of a second ceramic and/or stone material 6 above the first ceramic and/or stone material 5, where the second ceramic and/or stone material 6 is different to the first ceramic and/or stone material 5.
  • the leveling phase comprises a first leveling of the first delivered ceramic and/or stone material 5 and a second leveling of the second delivered ceramic and/or stone material 6, where this second leveling defines the pressing surface 8.
  • the process to which the present invention relates comprises a first delivery of the first ceramic and/or stone material 5, a first leveling of the first delivered ceramic and/or stone material 5, a second delivery of the second ceramic and/or stone material 6 and a second leveling of the second delivered ceramic and/or stone material 6.
  • the first leveling is adapted to level the first ceramic and/or stone material 5 substantially flush with the upper edge of the recesses 2.
  • the first leveling is adapted to level the first ceramic and/or stone material 5 at the top surface lb of the supporting element 1 so that the first ceramic and/or stone material 5 fills only the recesses 2 and the second ceramic and/or stone material 6 is placed directly on the upper surface itself.
  • pressing is performed by exerting a pressure on the pressing surface 8 defined by the second leveled ceramic and/or stone material 6.
  • the slab L thus obtained has, in the embodiment shown in Figure 10, a series of protrusions S made with the first ceramic and/or stone material 5, corresponding to the recesses 2 defined on the supporting element 1, and a basic element B made with the second ceramic and/or stone material 6.
  • the process to which the present invention relates allows obtaining ceramic and/or stone slabs characterized by a structured surface appearance, i.e. provided with protrusions and/or recesses, of any geometry and arrangement, where such protrusions and/or recesses may have a height or a depth of up to about 4 mm, respectively.
  • This effect is allowed by the lower positioning of the supporting element and by the leveling of the ceramic and/or stone material delivered thereon.

Landscapes

  • Engineering & Computer Science (AREA)
  • Ceramic Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Chemical & Material Sciences (AREA)
  • Structural Engineering (AREA)
  • Devices For Post-Treatments, Processing, Supply, Discharge, And Other Processes (AREA)

Abstract

The process for the manufacture of slabs of ceramic and/or stone material, comprises the following steps of: - supplying at least one supporting element (1) provided with a plurality of recesses (2); - positioning the supporting element (1) resting on a load-bearing top (3); - delivering at least one ceramic and/or stone material (5, 6) in the form of powder and/or flakes on the supporting element (1) so as to fill the recesses (2) and protrude on top of these; - leveling the ceramic and/or stone material (5, 6) on top of the recesses (2) to define at least one substantially flat pressing surface (8); - pressing the ceramic and/or stone material (5, 6) leveled at the pressing surface (8) to obtain a pressed slab (L) which has a visible face (La), corresponding to the face facing the load-bearing top (3), and a laying face (Lb), corresponding to the face facing upwards, where the visible face (La) has a plurality of protrusions (S) and/or recesses corresponding to the negative side of the supporting element (1) and a basic element (B) associated with the protrusions (S).

Description

PROCESS FOR THE MANUFACTURE OF SLABS OF CERAMIC AND/OR STONE MATERIAL
Technical Field
The present invention relates to a process for the manufacture of slabs of ceramic and/or stone material.
Background Art
The manufacture of slabs made of ceramic and/or stone material, including slabs made of mineral grits bound with resins, generally comprises a deposition phase of a basic material, which can be made up of a ceramic material or a mixture of minerals in granular form (e.g. marble, granite, glass, fragments of mirror, and/or others) as well as quartz powder and, in fact, resins that act as binders, on a supporting element, such as a belt or a mould, to form a slab to be compacted, and a subsequent pressing phase, so as to obtain a compacted slab. Depending on the type of basic material that is delivered on the supporting element, which can be of a single type or of different types mixed or loaded in a layered manner into a relevant hopper, the surface appearance taken by the slab changes.
In particular, the slabs thus obtained may have an even coloring, may have flakes of various sizes and colors or veins depending on the type of loaded material.
The trend today is to look for new aesthetic effects, so as to offer the market a wide range of products.
One drawback of the known product types consists in the obtainable surface conformation, generally characterized by smooth or slightly structured surfaces. Description of the Invention
The main aim of the present invention is to devise a process for the manufacture of slabs of ceramic and/or stone material that allows obtaining surfaces with different structures and different aesthetic effects compared to the products known today.
Within this aim, one object is to obtain surfaces with protrusions or recesses with a depth of even more than 2 mm.
Another object of the present invention is to devise a process for the manufacture of slabs of ceramic and/or stone material which allows overcoming the aforementioned drawbacks of the prior art in the context of a simple, rational, easy, effective to use and affordable solution.
The aforementioned objects are achieved by the present process for the manufacture of slabs of ceramic and/or stone material according to claim 1.
Brief Description of the Drawings
Other characteristics and advantages of the present invention will be more evident from the description of a preferred, but not exclusive, embodiment of a process for the manufacture of slabs of ceramic and/or stone material illustrated by way of an example, but not limited thereto, in the accompanying drawings, wherein:
Figure 1 is a schematic representation of the supply phase of a supporting element according to the invention;
Figure 1A is a section of the supporting element of Figure 1;
Figure 2 is a schematic representation of the delivery phase of a ceramic and/or stone material on the supporting element of Figure 1 , in a first embodiment of the process according to the invention;
Figure 2A is a section of the supporting element following the delivery phase of Figure 2;
Figure 3 is a schematic cross-sectional representation of the leveling phase of the delivered ceramic and/or stone material, in the first embodiment of the process according to the invention;
Figure 4 is a schematic cross-sectional representation of the pressing phase of the leveled ceramic and/or stone material;
Figure 5 is an axonometric view of a slab obtained with the process according to the invention in the first embodiment;
Figure 6 is a schematic cross-sectional representation of the first delivery phase of a first ceramic and/or stone material onto the supporting element in a second embodiment of the process according to the invention;
Figure 7 is a schematic cross-sectional representation of the first leveling phase of the first delivered ceramic and/or stone material;
Figure 8 is a schematic cross-sectional representation of the second delivery phase of a second ceramic and/or stone material above the first ceramic and/or stone material;
Figure 9 is a schematic cross-sectional representation of the second leveling phase of the second delivered ceramic and/or stone material;
Figure 10 is an axonometric view of a slab obtained with the process according to the invention in the second embodiment.
Embodiments of the Invention
The process for the manufacture of slabs of ceramic and/or stone material according to the invention, comprises at least one supply phase of at least one supporting element 1 provided with a plurality of recesses 2.
More specifically, the supporting element 1 defines a bottom surface la, corresponding to the bottom of the recesses 2, and a top surface lb, corresponding to the top of the recesses 2.
Preferably, the recesses feature depth values ranging from 1 mm to 4 mm.
The supporting element 1 is positioned on a load-bearing top 3, which can be of the fixed type or preferably movable forward along a direction of movement 4. The process then involves a delivery phase of at least one ceramic and/or stone material 5,6 in the form of powder and/or flakes on the supporting element 1 so as to fill the recesses 2 and protrude above these. The delivery of the ceramic and/or stone material 5,6 is therefore such as to exceed the top surface lb of the supporting element 1, so as to define a body to be compacted C that fills the recesses 2 and that protrudes above these.
The delivery phase is preferably carried out by means of a hopper 7, having a width substantially equal to that of the supporting element 1, which is adapted to discharge the ceramic and/or stone material 5,6 onto the supporting element 1 during the movement of the load-bearing top 3. It cannot however be ruled out that the load-bearing top 3 is fixed and that the hopper 7 can be moved in relation thereto.
The material 5,6 can be of the ceramic type, i.e. based on clay, silica, in the form of atomized products, grains or flakes, and/or stone (such as marble, granite, minerals or other natural stones) in the form of powder and/or granules and/or flakes and mixed with a cement or resinous binder. The ceramic and/or stone material 5,6 may consist of a single type of material, or of a plurality of primary materials of different types and/or with different colors, which may be mixed together or charged in a stratified manner.
Subsequently, a leveling phase of the ceramic and/or stone material 5,6 is performed so as to define at least one substantially flat pressing surface 8.
More in detail, the leveling phase is performed by means of a leveling element 9, which has a leveling profile 9a adapted to contact the body to be compacted C so as to equalize the amount of ceramic and/or stone material 5,6 along the entire extension of the supporting element 1.
Leveling of the ceramic and/or stone material 5,6 therefore allows preventing the formation of different density areas, which can then cause structural lack of homogeneity following the pressing phase described below. The leveling element 9 can be separate and independent from the hopper 7, or it can be locked together with it, in which case the leveling phase immediately follows the delivery phase. The extension of the leveling element 9 is substantially the same as that of the hopper 7. Following the leveling phase, the thickness of the body to be compacted C, i.e. the distance from the bottom surface la to the pressing surface 8 is substantially constant.
Finally, a pressing phase is performed of the ceramic and/or stone material 5,6 which is leveled at the point where the pressing surface 8 is located so as to obtain a pressed slab L. Pressing is performed by means of a pressing element 10 adapted to exert a predefined pressure on the pressing surface 8.
The slab L then has a visible face La, corresponding to the face facing the load- bearing top 3, and a laying face Lb, corresponding to the face facing upwards. The visible face La has a plurality of protrusions S and/or recesses corresponding to the negative side of the supporting element 1 and a basic element B associated with said protrusions S.
In the first embodiment shown in the Figures 1 to 4, the delivery phase requires that only one ceramic and/or stone material 5 is delivered onto the supporting element 1 and that only one leveling phase is therefore performed above the top surface lb. In this embodiment, both the protrusions S and the basic element B are made of the first ceramic and/or stone material 5. In the second embodiment shown in Figures 6 to 9, on the other hand, the delivery phase comprises a first delivery of at least a first ceramic and/or stone material 5, so as to fill at least the recesses 2, and at least a second delivery of a second ceramic and/or stone material 6 above the first ceramic and/or stone material 5, where the second ceramic and/or stone material 6 is different to the first ceramic and/or stone material 5. In turn, the leveling phase comprises a first leveling of the first delivered ceramic and/or stone material 5 and a second leveling of the second delivered ceramic and/or stone material 6, where this second leveling defines the pressing surface 8.
In other words, in this second embodiment, the process to which the present invention relates comprises a first delivery of the first ceramic and/or stone material 5, a first leveling of the first delivered ceramic and/or stone material 5, a second delivery of the second ceramic and/or stone material 6 and a second leveling of the second delivered ceramic and/or stone material 6.
Advantageously, the first leveling is adapted to level the first ceramic and/or stone material 5 substantially flush with the upper edge of the recesses 2.
More specifically, the first leveling is adapted to level the first ceramic and/or stone material 5 at the top surface lb of the supporting element 1 so that the first ceramic and/or stone material 5 fills only the recesses 2 and the second ceramic and/or stone material 6 is placed directly on the upper surface itself.
In this second embodiment, pressing is performed by exerting a pressure on the pressing surface 8 defined by the second leveled ceramic and/or stone material 6.
The slab L thus obtained has, in the embodiment shown in Figure 10, a series of protrusions S made with the first ceramic and/or stone material 5, corresponding to the recesses 2 defined on the supporting element 1, and a basic element B made with the second ceramic and/or stone material 6.
It has in practice been ascertained that the described invention achieves the intended objects and, in particular, it is underlined that the process to which the present invention relates allows obtaining ceramic and/or stone slabs characterized by a structured surface appearance, i.e. provided with protrusions and/or recesses, of any geometry and arrangement, where such protrusions and/or recesses may have a height or a depth of up to about 4 mm, respectively. This effect is allowed by the lower positioning of the supporting element and by the leveling of the ceramic and/or stone material delivered thereon.

Claims

1) Process for the manufacture of slabs of ceramic and/or stone material, characterized by the fact that it comprises the following steps of:
supplying at least one supporting element (1) provided with a plurality of recesses (2);
positioning said supporting element (1) resting on a load-bearing top (3); delivering at least one ceramic and/or stone material (5, 6) in the form of powder and/or flakes on said supporting element (1) so as to fill said recesses (2) and protrude on top of these;
leveling said ceramic and/or stone material (5, 6) on top of said recesses (2) to define at least one substantially flat pressing surface (8);
pressing said ceramic and/or stone material (5, 6) leveled at said pressing surface (8) to obtain a pressed slab (L) which has a visible face (La), corresponding to the face facing said load-bearing top (3), and a laying face (Lb), corresponding to the face facing upwards, where said visible face (La) has a plurality of protrusions (S) and/or recesses corresponding to the negative side of said supporting element (1) and a basic element (B) associated with said protrusions (S).
2) Process according to claim 1, characterized by the fact that it comprises a step of positioning said supporting element (1) on a load-bearing top (3) moving forward along a direction of movement (4).
3) Process according to claim 1 or 2, characterized by the fact that said leveling is performed by means of a leveling element (9) adapted to intercept said delivered ceramic and/or stone material.
4) Process according to claim 3, characterized by the fact that said delivery is performed by means of at least one hopper (7) adapted to discharge said ceramic and/or stone material (5, 6) onto said supporting element (1) and by the fact that said leveling element (9) is integrally associated with said hopper (7).
5) Process according to one or more of the preceding claims, characterized by the fact that said recesses (2) have a depth ranging from 1 mm to 4 mm.
6) Process according to one or more of the preceding claims, characterized by the fact that said delivery comprises a first delivery of at least a first ceramic and/or stone material (5), so as to fill at least said recesses (2), and at least a second delivery of a second ceramic and/or stone material (6) on top of said first ceramic and/or stone material (5), where said second ceramic and/or stone material (6) is different to said first ceramic and/or stone material (5), said leveling comprising a first leveling of said first delivered ceramic and/or stone material (5) and a second leveling of said second delivered ceramic and/or stone material (6), said second leveling defining said pressing surface (8).
7) Process according to claim 6, characterized by the fact that said first leveling is adapted to level the first ceramic and/or stone material (5) substantially flush with the upper edge of said recesses (2).
8) Process according to claim 6 or 7, characterized by the fact that said pressing is performed by applying a pressure on the upper face of the second leveled ceramic and/or stone material (6) and defining said pressing surface (8).
PCT/IB2019/057924 2018-09-19 2019-09-19 Process for the manufacture of slabs of ceramic and/or stone material WO2020058906A1 (en)

Applications Claiming Priority (2)

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IT102018000008739 2018-09-19
IT201800008739 2018-09-19

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112440507A (en) * 2020-10-21 2021-03-05 金华琦 Eye shadow material die filling device

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0865888A1 (en) * 1997-03-18 1998-09-23 Annovi S.r.l. Isobaric punch for pressing ceramic tiles and method for making said punch
WO2008136596A1 (en) * 2007-05-04 2008-11-13 Lg Chem, Ltd. An inorganic board and preparation method thereof
EP1509376B1 (en) * 2002-04-11 2010-03-31 Stone Italiana S.p.A. Process for manufacturing reinforced tiles or panels of agglomerated material with a metallic plate as well as product obtained through said process

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0865888A1 (en) * 1997-03-18 1998-09-23 Annovi S.r.l. Isobaric punch for pressing ceramic tiles and method for making said punch
EP1509376B1 (en) * 2002-04-11 2010-03-31 Stone Italiana S.p.A. Process for manufacturing reinforced tiles or panels of agglomerated material with a metallic plate as well as product obtained through said process
WO2008136596A1 (en) * 2007-05-04 2008-11-13 Lg Chem, Ltd. An inorganic board and preparation method thereof

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112440507A (en) * 2020-10-21 2021-03-05 金华琦 Eye shadow material die filling device

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