Disclosed is an inkjet ink that is jettable through standard inkjet nozzles, yet creates a non-abrasive non-porous three-dimensional glass structure on a 1-100 micron-scale without the need for additional processes beyond those normally used for the inkjet decoration of glass substrates. Such an inkjet ink can avoid the drawbacks noted above and is described herein.
Disclosed is an inkjet ink that is jettable through standard inkjet nozzles, yet creates a non-abrasive non-porous three-dimensional glass structure on a 1-100 micron-scale without the need for additional processes beyond those normally used for the inkjet decoration of glass substrates. Such an inkjet ink can avoid the drawbacks noted above and is described herein.
C03C 17/04 - Surface treatment of glass, e.g. of devitrified glass, not in the form of fibres or filaments, by coating with glass by fritting glass powder
A glass panel includes a first surface, and a second surface and wherein the first and second surfaces are spaced apart by thickness of the glass panel. A first image is printed on the first surface of the glass panel and a second image is printed on same first surface of the glass panel and at least partially overlapping the first image. The second image printed on the first surface and at least partially overlapping the first image forms at least partially opaque imbedded into the glass panel image that when covered by a fluid becomes transparent to reveal the first image printed on the second surface of the glass panel.
B32B 3/02 - Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shapeLayered products comprising a layer having particular features of form characterised by features of form at particular places, e.g. in edge regions
C09D 11/38 - Inkjet printing inks characterised by non-macromolecular additives other than solvents, pigments or dyes
B41M 1/34 - Printing on other surfaces than ordinary paper on glass or ceramic surfaces
C03C 17/34 - Surface treatment of glass, e.g. of devitrified glass, not in the form of fibres or filaments, by coating with at least two coatings having different compositions
C09D 11/03 - Printing inks characterised by features other than the chemical nature of the binder
C09D 11/36 - Inkjet printing inks based on non-aqueous solvents
C03C 17/04 - Surface treatment of glass, e.g. of devitrified glass, not in the form of fibres or filaments, by coating with glass by fritting glass powder
B44F 1/00 - Designs or pictures characterised by special or unusual light effects
E04F 15/02 - Flooring or floor layers composed of a number of similar elements
E06B 3/00 - Window sashes, door leaves, or like elements for closing openingsLayout of fixed or moving closures, e.g. windowsFeatures of rigidly-mounted outer frames relating to the mounting of wing frames
B41M 5/00 - Duplicating or marking methodsSheet materials for use therein
C03C 17/00 - Surface treatment of glass, e.g. of devitrified glass, not in the form of fibres or filaments, by coating
B41M 7/00 - After-treatment of printed works, e.g. heating, irradiating
4.
Etching compositions, methods and printing components
Liquid compositions for etching glass are disclosed herein. The liquid composition may include a non-active etching agent precursor that is inactive with respect to chemically etching glass in an amount of at least 2.5% by weight of the total composition, a binder and a liquid vehicle. The precursor may include an alkali metal salt having an activation temperature of at least 400° C. and when heated to above the activation temperature, the precursor yields an active etching agent suitable for chemical etching of glass.
The current document discloses an inkjet ink that is characterized by exceptionally low sedimentation rate of glass frit and pigment particles. Practically, the ink reversibly gels upon extended standing, thus preventing sedimentation entirely.
A printing system including a substrate support and an ink deposition unit. The ink distribution unit deposits liquid ink onto a substrate positioned on the substrate support. The system allows for relative movement between the substrate support and the ink deposition unit. After printing, the ink deposition unit rotates to be oriented with the longitudinal axis of the next image segment to be printed and wherein the rotation does not affect the image resolution. The system can print at least two axial images sharing at least one common image portion and having an angle between their longitudinal axes less than 90 degrees.
A glass panel includes a first surface, and a second surface and wherein the first and second surfaces are spaced apart by thickness of the glass panel. A first image is printed on the first surface of the glass panel and a second image is printed on same first surface of the glass panel and at least partially overlapping the first image. The second image printed on the first surface and at least partially overlapping the first image forms at least partially opaque imbedded into the glass panel image that when covered by a fluid becomes transparent to reveal the first image printed on the second surface of the glass panel.
B32B 3/00 - Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shapeLayered products comprising a layer having particular features of form
C03C 17/04 - Surface treatment of glass, e.g. of devitrified glass, not in the form of fibres or filaments, by coating with glass by fritting glass powder
B41M 1/34 - Printing on other surfaces than ordinary paper on glass or ceramic surfaces
C03C 17/34 - Surface treatment of glass, e.g. of devitrified glass, not in the form of fibres or filaments, by coating with at least two coatings having different compositions
C09D 11/03 - Printing inks characterised by features other than the chemical nature of the binder
B44F 1/00 - Designs or pictures characterised by special or unusual light effects
E04F 15/02 - Flooring or floor layers composed of a number of similar elements
E06B 3/00 - Window sashes, door leaves, or like elements for closing openingsLayout of fixed or moving closures, e.g. windowsFeatures of rigidly-mounted outer frames relating to the mounting of wing frames
B41M 5/00 - Duplicating or marking methodsSheet materials for use therein
B41M 7/00 - After-treatment of printed works, e.g. heating, irradiating
An inkjet printhead adapter, including a chassis operative to accommodate one or more printheads and include one or more ink recycling valves and one or more ink supply valves communicating with an ink reservoir via an ink feeding tube and with one or more printhead accommodated in the adapter and wherein the ink supply valve is operative to direct a flow of ink from the feeding tube to one or more of the printhead and the ink recycling valve.
A method for printing and correction of a printed image defects. The method includes inspection of the printed image and detection of segments of printed image that could contain printed defects. Acquisition of printed image and comparison of the acquired image to an error free image being a source of the printed image facilitates detection and correction of the printed image defects.
A method of producing a substrate having a frosted appearance, an article having a frosted appearance and frost-imparting compositions are disclosed. The method includes applying a frost-imparting composition onto a ceramic substrate and firing the coated substrate above 400° C. to impart the frost appearance. The frost-imparting composition comprises a liquid vehicle, 20% to 90% by weight of glass frit particles and less than 10% by weight of at least one gas-releasing material, inactive below an activation temperature of at least 400° C. The gas releasing material may include carbonate, nitrate, iodate, bromate, chlorate, fluoride, manganate, dimanganate and sulfate compounds. The firing temperature is chosen to be above the activation temperature of the gas-releasing material, above which the gas-releasing material yields gas bubbles and above a temperature that causes the glass frit particles to behave as a viscous liquid.
B05D 3/02 - Pretreatment of surfaces to which liquids or other fluent materials are to be appliedAfter-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials by baking
C03C 8/14 - Glass frit mixtures having non-frit additions, e.g. opacifiers, colorants, mill additions
A method and system for printing on glass boards is provided. The method may include jetting, from an inkjet printing system onto a glass board, a glass-based ink having solid glass particles to form a printed glass board; heating the glass board prior to jetting the glass-based ink; heating the glass board after jetting to fix the ink onto the glass board; conveying the printed glass board to a furnace; and firing the printed glass board in the furnace at temperature of no less than 550° c. to melt the solid glass particles onto the glass board and complete fixation of the glass-based ink.
B05D 1/32 - Processes for applying liquids or other fluent materials using means for protecting parts of a surface not to be coated, e.g. using stencils, resists
12.
Etching compositions, methods and printing components
A liquid etching composition comprising: (a) at least one etching agent precursor having an activation temperature of at least 400° C., at which temperature said precursor yields an active agent suitable for chemical etching of glass, said precursor present at a concentration of at least 2.5% w/w; (b) a binder; and (c) a liquid vehicle.
A production process for S2 or S3 printed glass laminates, comprising: printing a pattern on a first glass sheet using an ink composition comprising particles of glass frit, inorganic pigment particles and organic polymeric binder; pre-firing the pattern at a temperature of 350 to 450 degrees centigrade; laying a second glass sheet on top of the pre-fired pattern on the first glass sheet to produce a stack; firing the stack at a temperature of at least 575 degrees centigrade; and inserting a plastic spacer between the first and second sheets to produce a glass laminate.
B32B 17/10 - Layered products essentially comprising sheet glass, or fibres of glass, slag or the like comprising glass as the main or only constituent of a layer, next to another layer of a specific substance of synthetic resin
C03C 8/16 - Glass frit mixtures having non-frit additions, e.g. opacifiers, colorants, mill additions with vehicle or suspending agents, e.g. slip
C06B 45/10 - Compositions or products which are defined by structure or arrangement of component or product comprising solid particles dispersed in solid solution or matrix the solid solution or matrix containing an organic component the organic component containing a resin
Yissum Research Development Company of the Hebrew University of Jerusalem (Israel)
DIP Tech. Ltd. (Israel)
Inventor
Eron, Gera
Feinschmidt, Avi
Magdassi, Shlomo
Vinetsky, Yelena
Liraz, Eliane
Abstract
The invention relates to an ink-jet ink composition for printing on a ceramic substrate comprising: (a) a liquid vehicle; (b) sub-micron particles of binding composition having a melting point below 6000 C; and (c) sub-micron particles causing an etch-like effect, said sub-micron particles are selected from metal oxide particles, high melting point frit particles, and a combination thereof, said sub-micron particles causing an etch-like effect have a melting point of at least 500 C above the melting point of said sub-micron particles of binding composition. The invention further relates to a printing process using such ink and to a ceramic substrate printed with a pattern or image having an etch-like effect, by means of the printing process.
A liquid etching composition comprising: (a) at least one etching agent precursor having an activation temperature of at least 400oC, at which temperature said precursor yields an active agent suitable for chemical etching of glass, said precursor present at a concentration of at least 2.5% w/w; (b) a binder; and (c) a liquid vehicle.
Yissum Research Development Company of the Hebrew University of Jerusalem (Israel)
Inventor
Magdassi, Shlomo
Eron, Gera
Vinetsky, Yelena
Abstract
The present invention concerns ink for printing on ceramic surfaces such as glass, which contains glass frits for silica nanoparticles and optionally a pigment, and is suitable for ink jet printing.
C09D 1/00 - Coating compositions, e.g. paints, varnishes or lacquers, based on inorganic substances
C09D 4/00 - Coating compositions, e.g. paints, varnishes or lacquers, based on organic non-macromolecular compounds having at least one polymerisable carbon-to-carbon unsaturated bond
C09D 5/00 - Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects producedFilling pastes
Digital ink-jet glass printer for printing flat glass boards with glass based ink is disclosed, comprising; (a) horizontal support for a glass board to be printed; (b) at least one digital ink-jet printing head moveable from above the area of a glass board supported by the horizontal support by means of a respective moving mechanism, the printing head is capable of moving above the glass board and injecting glass based ink according to positioning and injecting commands received from a computer or controller; (c) ink supply system in liquid communication with the at least one printing head. Method for printing flat glass boards with glass based ink, is also disclosed, comprising; (a) providing a computer memory with image to be printed; (b) positioning a glass plate to be printed underneath at least one digital ink-jet printing head capable of receiving from the computer and accordingly executing ink jetting commands and positioning commands; (c) providing the at least one printing head with jetting and positioning commands corresponding to the image to be printed; (d) supplying to the printing head glass based ink in a substantially unified heterogenic suspension in quantities sufficient for printing the image; (e) drying or curing the image until a primary fixation is achieved sufficient for safely conveying the printed glass plate to completing the ink fixation in a furnace.
B05D 1/32 - Processes for applying liquids or other fluent materials using means for protecting parts of a surface not to be coated, e.g. using stencils, resists
patents
