US20040185233A1 - Systems for applying coatings - Google Patents
Systems for applying coatings Download PDFInfo
- Publication number
- US20040185233A1 US20040185233A1 US10/765,054 US76505404A US2004185233A1 US 20040185233 A1 US20040185233 A1 US 20040185233A1 US 76505404 A US76505404 A US 76505404A US 2004185233 A1 US2004185233 A1 US 2004185233A1
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- US
- United States
- Prior art keywords
- coating
- product
- set forth
- applying
- 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.)
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Classifications
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- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47G—HOUSEHOLD OR TABLE EQUIPMENT
- A47G19/00—Table service
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
- B41J3/00—Typewriters or selective printing or marking mechanisms characterised by the purpose for which they are constructed
- B41J3/407—Typewriters or selective printing or marking mechanisms characterised by the purpose for which they are constructed for marking on special material
- B41J3/4073—Printing on three-dimensional objects not being in sheet or web form, e.g. spherical or cubic objects
- B41J3/40733—Printing on cylindrical or rotationally symmetrical objects, e. g. on bottles
-
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
- C03C17/00—Surface treatment of glass, not in the form of fibres or filaments, by coating
- C03C17/28—Surface treatment of glass, not in the form of fibres or filaments, by coating with organic material
- C03C17/32—Surface treatment of glass, not in the form of fibres or filaments, by coating with organic material with synthetic or natural resins
-
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
- C03C17/00—Surface treatment of glass, not in the form of fibres or filaments, by coating
- C03C17/34—Surface treatment of glass, not in the form of fibres or filaments, by coating with at least two coatings having different compositions
- C03C17/3405—Surface treatment of glass, not in the form of fibres or filaments, by coating with at least two coatings having different compositions with at least two coatings of organic materials
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D3/00—Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials
- B05D3/06—Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials by exposure to radiation
- B05D3/061—Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials by exposure to radiation using U.V.
- B05D3/065—After-treatment
- B05D3/067—Curing or cross-linking the coating
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D5/00—Processes for applying liquids or other fluent materials to surfaces to obtain special surface effects, finishes or structures
- B05D5/06—Processes for applying liquids or other fluent materials to surfaces to obtain special surface effects, finishes or structures to obtain multicolour or other optical effects
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D7/00—Processes, other than flocking, specially adapted for applying liquids or other fluent materials to particular surfaces or for applying particular liquids or other fluent materials
- B05D7/50—Multilayers
- B05D7/52—Two layers
-
- 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
- B41M5/0011—Pre-treatment or treatment during printing of the recording material, e.g. heating, irradiating
-
- 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
- B41M5/0064—Digital printing on surfaces other than ordinary paper on plastics, horn, rubber, or other organic polymers
-
- 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
- B41M5/0082—Digital printing on bodies of particular shapes
- B41M5/0088—Digital printing on bodies of particular shapes by ink-jet printing
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41M—PRINTING, DUPLICATING, MARKING, OR COPYING PROCESSES; COLOUR PRINTING
- B41M7/00—After-treatment of prints, e.g. heating, irradiating, setting of the ink, protection of the printed stock
- B41M7/0081—After-treatment of prints, e.g. heating, irradiating, setting of the ink, protection of the printed stock using electromagnetic radiation or waves, e.g. ultraviolet radiation, electron beams
-
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
- C03C2217/00—Coatings on glass
- C03C2217/70—Properties of coatings
- C03C2217/72—Decorative coatings
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T156/00—Adhesive bonding and miscellaneous chemical manufacture
- Y10T156/10—Methods of surface bonding and/or assembly therefor
- Y10T156/1002—Methods of surface bonding and/or assembly therefor with permanent bending or reshaping or surface deformation of self sustaining lamina
- Y10T156/1039—Surface deformation only of sandwich or lamina [e.g., embossed panels]
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T156/00—Adhesive bonding and miscellaneous chemical manufacture
- Y10T156/10—Methods of surface bonding and/or assembly therefor
- Y10T156/1002—Methods of surface bonding and/or assembly therefor with permanent bending or reshaping or surface deformation of self sustaining lamina
- Y10T156/1043—Subsequent to assembly
- Y10T156/1044—Subsequent to assembly of parallel stacked sheets only
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/13—Hollow or container type article [e.g., tube, vase, etc.]
- Y10T428/1352—Polymer or resin containing [i.e., natural or synthetic]
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/24—Structurally defined web or sheet [e.g., overall dimension, etc.]
- Y10T428/24802—Discontinuous or differential coating, impregnation or bond [e.g., artwork, printing, retouched photograph, etc.]
Definitions
- This invention is directed to systems for applying coatings to small objects, and in particular to the application of thin coatings by way of dip coating, or digital air brushing, or to transfer coatings by roller and/or pad, and to the articles thus coated.
- the coatings may form part of a further process, or they may be final coatings.
- DIJ Digital Ink Jet
- This ‘near photographic’ quality of print can be achieved with printing of 300 drops per inch (dpi) where with prior printheads it was achievable at 800 to 1200 dpi.
- the new printhead greatly simplifies the design of a DIJ printing system, as far less printheads are required, and the associated electronic hardware and software are reduced accordingly, thereby considerably reducing overall costs compared to earlier systems.
- the present article coating process may form a portion of a digital ink jet (DIJ) printing process, wherein, after applying DIJ decoration to a face of an article, a clear coating is applied by dip coating to give dishwasher and abrasion protection to the article and its decoration.
- DIJ digital ink jet
- an adhesion promoting coating may first be applied to a vessel such as a drinking glass.
- the vessel is held in an inverted position by a vacuum mechanism, and dipped into an adhesion promoting coating solution contained in a tank, and then transferred to a small tunnel where the adhesion promoter is dried with a flow of warm air.
- the still inverted vessel is then transferred to an adjacent tank and is dipped into a catalyzed, solvent based, printable urethane coating, and then transferred into a tunnel and held in an inverted position on spindles. It travels through this tunnel while being exposed to a flow of warm air, and heated by infrared panels or in a convection oven to flash off the solvent.
- the speed of this entire line is controlled such that the vessels are loaded onto the line in two second intervals and arrive at the DIJ printing machine at that same speed.
- the DIJ printer also is designed to print at the rate of 2 seconds per article (unit), 30 units per minute, 1800 units per hour.
- an adhesion promoting coating may first be applied by DCAB, being limited to the specific area to be decorated.
- catalyzed, solvent based, printable urethane coating may be applied by DCAB, to condition a predetermined area of an article for the subsequent application of decoration, by whatever decorating means are selected.
- DCAB coating also apply to its use with other forms of decoration, in addition to digitally controlled printing; e.g. coatings associated with hand-painted decoration, that convey much higher market values, on an individual basis.
- a first roller picks up the coating material from a tank, transfers it to a second roller (to control the thickness of the coating) which in turn transfers the coating to a third roller having a flexible rubber cover.
- This third roller contacts the surface to be imprinted, and transfers the material to that surface.
- the third roller has a transfer pad the precise size to be printed onto the DVDisc.
- the pad picks up the coating material from the second roller and transfers it to the DV disc.
- the coating material can include light background material, such as a white undercoat, to serve as background, over which a black or colour imprint can be superimposed.
- a clear outer-coating material may be applied, to serve as protection for such coloured imprint material.
- the selection of material also includes election of the coating solvent or carrier.
- an aqueous based carrier may prove suitable. Otherwise, selection of a coating based on a carrier suited to low temperature u/v curing may prove desirable or necessary.
- FIG. 1 is a schematic plan view of a process line for carrying out the coating of vessels on accordance with the present invention
- FIG. 2 is a schematic block diagram showing the subject process steps.
- FIG. 3 is a sketch illustrating a DCAB coated article.
- a production line 10 has a loading area 12 at which vessels are loaded onto a conveyor 14 , where they are suspended from vacuum fittings in an inverted position. Each vessel is transferred to a tank 16 , where it is at least partially immersed in a solution of adhesion promoter, and then passed to a dryer tunnel 18 where the adhesion promoter is dried with a flow of warm air.
- the vessel then is transferred to the next tank 20 , while still in the inverted position, and is dipped into a catalyzed, solvent based, urethane having from 16% to 25% solids.
- the vessels then are transferred onto supporting spindles and pass into drying tunnel 22 . They travel through the tunnel 22 at a predetermined line speed while being exposed to a flow of warm air heated by infrared panels or convection, having a residence time sufficient to flash off the solvent. The warm air and solvent pass to a vent 24 .
- the conveyor 14 with its load of vessels then continues on into a heated tunnel 26 , travelling at a predetermined speed to achieve a desired heat exposure within the tunnel 26 to cure the coating.
- the curing tunnel 26 is vented at vent 28 .
- the vessels then continue on the conveyor 14 to a cooling tunnel 30 where they are brought to ambient temperature with a flow of ambient air. At this point each vessel is coated with a very thin, uniform printable coating of almost immeasurable thickness.
- DIJ printing means 34 consisting of one or more DIJ printing machines enables the application to the vessels of decoration having four or five colours.
- the speed of the entire line 10 is controlled, with the speed of conveyor 14 being tied to the speed of the DIJ printing means 34 .
- the speed of the entire line 10 is controlled so that the vessels are loaded onto the line at fixed time intervals, such as two seconds, and arrive at the DIJ printing machine at that same speed.
- the DIJ printer also is controlled to operate in synchronism with the coating, drying and curing portions of the process; e.g. to print at the rate of 2 seconds per article, 30 units per minute, 1800 per hour.
- the now-printed (i.e. decorated) units travel by way of conveyor 36 to rejoin the line 10 at a location upstream of the dip coater 20 , for a protective urethane coating, which is dried and cured on the line 10 , and the articles taken from the collection table 32 for inspection and packaging.
- FIG. 2 Describing FIG. 2 in more general terms:
- a disc 40 is shown in three stages, A, B and C.
- stage A a discrete area 42 receives a first, digitally controlled air brush undercoat, which is dried, and an overlying second, printable coating which is digitally airbrushed over the first, undercoat.
- an outlined area 44 contains a decoration, such as a combination of a art-work and text, superimposed on a portion of the underlying area 42 , portrayed in dashed lines.
- stage C the area 44 is overlaid by a transparent protective coating 46 , which substantially coincides with the area 42 of the first and second coatings.
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Manufacturing & Machinery (AREA)
- Application Of Or Painting With Fluid Materials (AREA)
- Laminated Bodies (AREA)
- Decoration By Transfer Pictures (AREA)
Abstract
Description
- This application is a Continuation-in-Part of application Ser. No. 10/046,743, filed Jan. 17, 2002, which is incorporated herein, by way of reference.
- Not Applicable
- Not Applicable
- 1. This invention is directed to systems for applying coatings to small objects, and in particular to the application of thin coatings by way of dip coating, or digital air brushing, or to transfer coatings by roller and/or pad, and to the articles thus coated. The coatings may form part of a further process, or they may be final coatings.
- 2. In the above-identified prior application, use is made of digital printing to apply a protective coating in the form of an “ink”, which can be applied by way of a digital printing process, wherein one or more such coatings are applied. This prior process pertains primarily to planar articles; i.e. articles having a substantially planar surface to be decorated and protectively coated.
- Recent progress in the Digital Ink Jet (DIJ) printing art relates to a new printhead that has been developed by Xaar in cooperation with Toshiba, which has advanced the process of DIJ printing to a stage where ‘near photographic’ quality is achieved. Previous print quality was limited by printheads that were incapable of producing sufficiently small ink droplets to create the necessary definition of the process colours The Xaar's ‘Leopard’ high performance DIJ printhead is now able to achieve eight levels of greyscale (seven sizes of ink droplet plus a ‘no drop’), making it possible to achieve the quality level of print required by companies, such as for the labeling of video discs, (DVDs). This ‘near photographic’ quality of print can be achieved with printing of 300 drops per inch (dpi) where with prior printheads it was achievable at 800 to 1200 dpi. The new printhead greatly simplifies the design of a DIJ printing system, as far less printheads are required, and the associated electronic hardware and software are reduced accordingly, thereby considerably reducing overall costs compared to earlier systems.
- The present article coating process may form a portion of a digital ink jet (DIJ) printing process, wherein, after applying DIJ decoration to a face of an article, a clear coating is applied by dip coating to give dishwasher and abrasion protection to the article and its decoration.
- In another dip coating application, an adhesion promoting coating may first be applied to a vessel such as a drinking glass. The vessel is held in an inverted position by a vacuum mechanism, and dipped into an adhesion promoting coating solution contained in a tank, and then transferred to a small tunnel where the adhesion promoter is dried with a flow of warm air.
- The still inverted vessel is then transferred to an adjacent tank and is dipped into a catalyzed, solvent based, printable urethane coating, and then transferred into a tunnel and held in an inverted position on spindles. It travels through this tunnel while being exposed to a flow of warm air, and heated by infrared panels or in a convection oven to flash off the solvent.
- It then proceeds into a conveyorized tunnel for curing, by exposure to infrared Radiation or in a convection oven, and proceeds from there to a cooling tunnel where it is brought to ambient temperature with a flow of ambient air.
- Up to this point the vessel is coated with a very thin, uniform printable coating of almost immeasurable thickness.
- The speed of this entire line is controlled such that the vessels are loaded onto the line in two second intervals and arrive at the DIJ printing machine at that same speed. The DIJ printer also is designed to print at the rate of 2 seconds per article (unit), 30 units per minute, 1800 units per hour.
- After DIJ printing a conveyor transfers the product to the dip coater for a second application of transparent urethane coating and this, after repeating the same process of solvent flashing, infrared curing and cooling, is followed by inspection and packaging.
- The foregoing coating steps, instead by way of dipping, may also be carried out using digitally controlled airbrushing (“DCAB”).
- The application of digital control to an airbrushing process permits accurate, localized application of selected coatings to discrete portions of an article. As an alternative to dip coating, DCAB may be similarly used in coating the above-described articles, while providing the advantage of not requiring that the full surface of the vessel be coated.
- Thus, in applying decoration to a drinking vessel, an adhesion promoting coating may first be applied by DCAB, being limited to the specific area to be decorated. Similarly, catalyzed, solvent based, printable urethane coating may be applied by DCAB, to condition a predetermined area of an article for the subsequent application of decoration, by whatever decorating means are selected.
- Then, following the application of decorative art work to that area, the other protective coatings can similarly be applied by DCAB.
- In addition to savings in coating materials, savings are also realized in reduced drying and curing requirements. These savings may also include reductions in capital cost for space and plant, as well as ongoing energy savings.
- It will be appreciated that the above-described characteristics of DCAB coating also apply to its use with other forms of decoration, in addition to digitally controlled printing; e.g. coatings associated with hand-painted decoration, that convey much higher market values, on an individual basis.
- In the case of planar articles such as digital video discs (DVD's) and other discs such as compact discs (CD's), the well-known printing industry FLEXOGRAPHIC (Trademark) process may be used, in which material, including coatings are applied by a sequenced group of cooperating rollers.
- In FLEXOGRAPHIC transfer, a first roller picks up the coating material from a tank, transfers it to a second roller (to control the thickness of the coating) which in turn transfers the coating to a third roller having a flexible rubber cover. This third roller contacts the surface to be imprinted, and transfers the material to that surface.
- In the case such as a DVD, the third roller has a transfer pad the precise size to be printed onto the DVDisc. The pad picks up the coating material from the second roller and transfers it to the DV disc.
- The coating material can include light background material, such as a white undercoat, to serve as background, over which a black or colour imprint can be superimposed. Alternatively, a clear outer-coating material may be applied, to serve as protection for such coloured imprint material.
- The selection of material also includes election of the coating solvent or carrier. In the case of a product where a high temperature is acceptable, an aqueous based carrier may prove suitable. Otherwise, selection of a coating based on a carrier suited to low temperature u/v curing may prove desirable or necessary.
- Certain embodiments of the invention are described by way of illustration, without limitation thereto other than as set forth in the accompanying claims, reference being made to the accompanying drawings, wherein:
- FIG. 1 is a schematic plan view of a process line for carrying out the coating of vessels on accordance with the present invention;
- FIG. 2 is a schematic block diagram showing the subject process steps; and,
- FIG. 3 is a sketch illustrating a DCAB coated article.
- Referring to FIG. 1, a
production line 10 has aloading area 12 at which vessels are loaded onto aconveyor 14, where they are suspended from vacuum fittings in an inverted position. Each vessel is transferred to atank 16, where it is at least partially immersed in a solution of adhesion promoter, and then passed to adryer tunnel 18 where the adhesion promoter is dried with a flow of warm air. - The vessel then is transferred to the
next tank 20, while still in the inverted position, and is dipped into a catalyzed, solvent based, urethane having from 16% to 25% solids. - The vessels then are transferred onto supporting spindles and pass into drying
tunnel 22. They travel through thetunnel 22 at a predetermined line speed while being exposed to a flow of warm air heated by infrared panels or convection, having a residence time sufficient to flash off the solvent. The warm air and solvent pass to avent 24. - The
conveyor 14 with its load of vessels then continues on into a heatedtunnel 26, travelling at a predetermined speed to achieve a desired heat exposure within thetunnel 26 to cure the coating. Thecuring tunnel 26 is vented atvent 28. - The vessels then continue on the
conveyor 14 to acooling tunnel 30 where they are brought to ambient temperature with a flow of ambient air. At this point each vessel is coated with a very thin, uniform printable coating of almost immeasurable thickness. - The vessels now pass to a collection table32, for passage through a printing or other decorative process. In the above-identified process, Digital Ink Jet (DIJ) printing is used, and in the present preferred embodiment DIJ printing means 34, consisting of one or more DIJ printing machines enables the application to the vessels of decoration having four or five colours.
- The speed of the
entire line 10 is controlled, with the speed ofconveyor 14 being tied to the speed of the DIJ printing means 34. - Thus, the speed of the
entire line 10 is controlled so that the vessels are loaded onto the line at fixed time intervals, such as two seconds, and arrive at the DIJ printing machine at that same speed. The DIJ printer also is controlled to operate in synchronism with the coating, drying and curing portions of the process; e.g. to print at the rate of 2 seconds per article, 30 units per minute, 1800 per hour. - Leaving the
printer 34, the now-printed (i.e. decorated) units travel by way ofconveyor 36 to rejoin theline 10 at a location upstream of thedip coater 20, for a protective urethane coating, which is dried and cured on theline 10, and the articles taken from the collection table 32 for inspection and packaging. - For articles with which airbrush-applied (DCAB-applied) coatings are used, the required functions of the facilities are largely the same, in terms of drying and curing, but the scheduling is markedly changed, with associated cost reductions. Turning to FIG. 2, articles to be decorated are loaded onto a conveyor, at least partially immersed in a solution of adhesion promoter, then dried. Next, they are dipped into a catalyzed solvent based urethane, dried.and then cured
- They are then cooled to ambient temperature.
- They are then decorated by DIJ or by DCAB.
- Finally, the articles are protected by way of another dip coating, then inspected and packaged.
- Describing FIG. 2 in more general terms:
- 1) adhesion promoting coating is first applied and dried
- 2) printable coating applied dried, cured and cooled;
- 3) decoration applied by DIJ or DCAB;
- 4) protective transparent overcoating applied and dried.
- 5) product inspected and packaged
- Turning to FIG. 3, a disc40 is shown in three stages, A, B and C. In stage A, a
discrete area 42 receives a first, digitally controlled air brush undercoat, which is dried, and an overlying second, printable coating which is digitally airbrushed over the first, undercoat. - In stage B, an outlined
area 44 contains a decoration, such as a combination of a art-work and text, superimposed on a portion of theunderlying area 42, portrayed in dashed lines. - In stage C, the
area 44 is overlaid by a transparentprotective coating 46, which substantially coincides with thearea 42 of the first and second coatings.
Claims (20)
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US10/765,054 US20040185233A1 (en) | 2002-01-17 | 2004-01-28 | Systems for applying coatings |
US11/302,238 US20060093797A1 (en) | 2002-01-17 | 2005-12-14 | Decoration of articles and wares |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US10/046,743 US6699352B2 (en) | 1999-01-25 | 2002-01-17 | Decorative and protective system for wares |
US10/765,054 US20040185233A1 (en) | 2002-01-17 | 2004-01-28 | Systems for applying coatings |
Related Parent Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US10/046,743 Continuation-In-Part US6699352B2 (en) | 1999-01-25 | 2002-01-17 | Decorative and protective system for wares |
Related Child Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US11/302,238 Continuation-In-Part US20060093797A1 (en) | 2002-01-17 | 2005-12-14 | Decoration of articles and wares |
Publications (1)
Publication Number | Publication Date |
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US20040185233A1 true US20040185233A1 (en) | 2004-09-23 |
Family
ID=27609057
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US10/046,743 Expired - Lifetime US6699352B2 (en) | 1999-01-25 | 2002-01-17 | Decorative and protective system for wares |
US10/765,054 Abandoned US20040185233A1 (en) | 2002-01-17 | 2004-01-28 | Systems for applying coatings |
Family Applications Before (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US10/046,743 Expired - Lifetime US6699352B2 (en) | 1999-01-25 | 2002-01-17 | Decorative and protective system for wares |
Country Status (4)
Country | Link |
---|---|
US (2) | US6699352B2 (en) |
AU (1) | AU2002351642A1 (en) |
CA (1) | CA2472734A1 (en) |
WO (1) | WO2003061848A2 (en) |
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- 2002-12-30 AU AU2002351642A patent/AU2002351642A1/en not_active Abandoned
- 2002-12-30 WO PCT/CA2002/002028 patent/WO2003061848A2/en not_active Application Discontinuation
- 2002-12-30 CA CA002472734A patent/CA2472734A1/en not_active Abandoned
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US6699352B2 (en) * | 1999-01-25 | 2004-03-02 | Henry Sawatsky | Decorative and protective system for wares |
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US20070065646A1 (en) * | 2005-09-22 | 2007-03-22 | The Chaimberg 5 Holdings Inc./Gestion Chaimberg 5 Inc. | Method of fabricating high-gloss liqui-finish artwork prints |
US20070075087A1 (en) * | 2005-09-30 | 2007-04-05 | Harley-Davidson Motor Company Group, Inc. | Method of enhancing corrosion resistance of hollow vessels |
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US9751350B2 (en) | 2013-03-15 | 2017-09-05 | Thomas J. McKnight | System and method for scoring and applying a pigment solution to a substrate |
Also Published As
Publication number | Publication date |
---|---|
AU2002351642A1 (en) | 2003-09-02 |
CA2472734A1 (en) | 2003-07-31 |
US20020064616A1 (en) | 2002-05-30 |
WO2003061848A3 (en) | 2004-02-12 |
WO2003061848A2 (en) | 2003-07-31 |
WO2003061848B1 (en) | 2004-04-08 |
US6699352B2 (en) | 2004-03-02 |
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