Classifications

• • 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.
• • 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
  • B41M5/0076—Digital printing on surfaces other than ordinary paper on wooden surfaces, leather, linoleum, skin, or flowers
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B44—DECORATIVE ARTS
  • B44C—PRODUCING DECORATIVE EFFECTS; MOSAICS; TARSIA WORK; PAPERHANGING
  • B44C5/00—Processes for producing special ornamental bodies
  • B44C5/04—Ornamental plaques, e.g. decorative panels, decorative veneers
• • C—CHEMISTRY; METALLURGY
  • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
  • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
  • C04B41/00—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone
  • C04B41/45—Coating or impregnating, e.g. injection in masonry, partial coating of green or fired ceramics, organic coating compositions for adhering together two concrete elements
  • C04B41/4572—Partial coating or impregnation of the surface of the substrate
  • C04B41/4574—Coating different parts of the substrate with different materials
• • C—CHEMISTRY; METALLURGY
  • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
  • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
  • C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
  • C04B2111/80—Optical properties, e.g. transparency or reflexibility
  • C04B2111/82—Coloured materials

Definitions

• This invention refers to a procedure for the coloring of reconstituted stone and decorative panels as well as to the finished products - reconstituted stones and decorative panels obtained through this procedure.
• a procedure is already known for the decoration of natural or reconstituted stones described in invention and EP0770502; the procedure consists of the overlaying of a drawing onto the clean surface of the natural or reconstituted stone for example by printing or photographic replication from a photographic paper.
• the paper is fixed onto the surface of the stone by means of a water based adhesive, PVA for example, then a pressure of 500 - 800 kg/m 2 is applied for 2 to 5 hours.
• the pressure can be applied through a layer of foam, rubber or other flexible material.
• a number of stone items to be processed can be simultaneously placed into a molding machine, separated by flexible material layers. After applying the pressure, the stone items are cut and cleaned according to the print project and finally, they are covered with a layer of cellulose based varnish.
• the disadvantages of this procedure are: low productivity, poor durability of the color layer on the printed surface, poor resistance to sun rays and the impossibility of use on highly irregular surfaces.
• UV SPOTLINE SLF1380UV flatbed printer used for the following printing supports: plexiglass, wood, metal, ceramics, stone, glass, aluminum, plastic, acryl, EVA foam (slabs), textile, stickers (PVC), corrugated board, wall paper, paper.
• the printing head can be adjusted over a height of 90 mm; direct printing on rigid materials without any need to print on stickers subsequently applicable onto plexiglass or corrugated board, ceramics, stone or wood which cannot be easily wrapped; thus a varied range of finished products can be obtained (icons, customized ceramic, floor and wall tiles, etc.).
• EFI Cretaprint equipment for the digital color printing of flat ceramic surfaces, floor or wall tiles for example, which differ only in the width of the printed surfaces (between 696 mm and 1365 mm) and the speed of the printing process.
• patent CN 105620165 (A) - 2016-06-01 which is broken down in the following stages: cut of the porcelain plates according to patterns; polishing of each of the porcelain plates; cleaning the porcelain plates; drying the porcelain plates; pulverizing stoneware onto the porcelain plates; drying of the porcelain plates; analyze and correction of the pattern by means of a digital printer; printing the pattern with a digital printer; wrap glazing is performed on the front surfaces of the porcelain plates; preparation for over glaze; over glaze powdering onto the porcelain plates; over glaze baking; assembling the porcelain plates according to the pattern; assembling a frame according to the product design.
• the technical problem which this invention solves is the use of a procedure allowing: i) printing/coloring reconstituted stone and decorative panels with a height of the texture of +/- 35; ii) printing/coloring of a large variety of patterns; iii) storing of a large number of types and dimensions of the printing surface iv) capability to work with a wide variety of different textures; v) printing / coloring of corner pieces.
• the reconstituted stone and decorative panels coloring procedure solves the stated technical problem by using on the manufacturing line of an equipment specialized in the digital coloring of reconstituted stone and decorative panels fitted with a printing device allowing the coloring of the surface of reconstituted stone parts or decorative panels with a height of the texture of +/- 35 mm.
• the equipment can be additionally fitted with a 90° indexer coloring device.
• the advantages featured by this invention derive from the fact that by using a printing device allowing the coloring of reconstituted stone or decorative panel surfaces with the height of the texture of +/- 35 mm, and a 90° indexer coloring device, attached to the specialized, digital coloring device for reconstituted stone and decorative panels , the procedure allows for not only the digital coloring of models with up to 5 mm deep texture but also for the digital coloring of a large variety of models with deeper textures, corner pieces included, in one single operation. Thus, the execution duration of complex pieces is substantially reduced with a corresponding reduction of the unit cost per processed piece.
• the coloring procedure for reconstituted stone and decorative panels counts the following stages: Stage 1 - selection of the reconstituted stone or decorative pane; which are to be colored; Stage 2 - programming the pattern that is to be overlaid on the reconstituted stone pieces or decorative panels and selection of the type of paint and color ranges; Stage 3 - placing and fixing the reconstituted stone or decorative panel pieces on the table of the coloring equipment; Stage 4 - coloring of the reconstituted stone or decorative panel pieces on the equipment table; for this stage the equipment shall be fitted with a printing device allowing for the coloring of the surfaces of the reconstituted stone or decorative panel pieces with a texture difference of +/- 35 mm; the printing technologies to be used are: KYOCERA KJ4C-0360: 16 rows, printing width 111 mm, or XAAR 1003 GS6-GS12-GS40, or other known similar technologies; Stage 4’ - if the type of reconstituted stone or decorative panels features corner pieces, then the equipment shall be fitted with a 90° indexer coloring

Landscapes

• Engineering & Computer Science (AREA)
• Ceramic Engineering (AREA)
• Chemical & Material Sciences (AREA)
• Life Sciences & Earth Sciences (AREA)
• Wood Science & Technology (AREA)
• Materials Engineering (AREA)
• Structural Engineering (AREA)
• Organic Chemistry (AREA)
• Finishing Walls (AREA)
• Printing Methods (AREA)
• Application Of Or Painting With Fluid Materials (AREA)

Applications Claiming Priority (2)

Publications (1)

Family

ID=62189538

Family Applications (1)

Country Status (3)

Family Cites Families (4)

• 2016
  • 2016-11-11 RO ROA201600816A patent/RO132561A2/ro unknown
• 2017
  • 2017-09-01 EP EP17928104.3A patent/EP3538374A2/en not_active Withdrawn
  • 2017-09-01 WO PCT/RO2017/000018 patent/WO2019108079A2/en unknown

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