Patents by Inventor Eytan Cohen
Eytan Cohen has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
-
Publication number: 20230348738Abstract: An example of a liquid ink includes a pigment dispersion, a polyurethane dispersion, a polytetrafluoroethylene wax emulsion, a co-solvent, and a balance of water. A particle diameter of a polytetrafluoroethylene wax in the polytetrafluoroethylene wax emulsion is less than 50 nm. Examples of the liquid ink may be incorporated into a thermal inkjet printing system.Type: ApplicationFiled: July 9, 2023Publication date: November 2, 2023Inventors: Max Yen, Alex Trubnikov, Shimrit Rubin, Or Pinkesfeld, Marisa Samoshin, Yi-Hua Tsao, Eytan Cohen
-
Patent number: 11732146Abstract: An example of a liquid ink includes a pigment dispersion, a polyurethane dispersion, a polytetrafluoroethylene wax emulsion, a co-solvent, and a balance of water. A particle diameter of a polytetrafluoroethylene wax in the polytetrafluoroethylene wax emulsion is less than 50 nm. Examples of the liquid ink may be incorporated into a thermal inkjet printing system.Type: GrantFiled: October 10, 2016Date of Patent: August 22, 2023Assignee: Hewlett-Packard Development Company, L.P.Inventors: Max Yen, Alex Trubnikov, Shimrit Rubin, Or Pinkesfeld, Marisa Samoshin, Yi-Hua Tsao, Eytan Cohen
-
Publication number: 20230232839Abstract: Provided are compositions including saponins and plant extracts having an antimicrobial activity.Type: ApplicationFiled: April 3, 2023Publication date: July 27, 2023Applicant: Y&B MOTHER'S CHOICE LTD.Inventors: Tova SILBERSTEIN, Rachel LUTZ, Eytan COHEN, Haya SANDORI-KAZAZ
-
Publication number: 20230104817Abstract: An over-print varnish formulation is described. The formulation comprises a non-ionic polyurethane dispersion; a water-soluble polymer of Mw less than 55,000; a wax having a particle size (d50) 200 nm or less; and a water-soluble solvent, and at least 20 wt % solids, based on the total weight of the formulation. A method of printing using the formulation, and a printed article are also described.Type: ApplicationFiled: April 2, 2020Publication date: April 6, 2023Inventors: Alex Trubnikov, Mazi Bar, Eytan Cohen, Kfir Dar, Kobi Cohen
-
Publication number: 20230095396Abstract: A method of printing is described. The method comprises applying a fixer composition onto a substrate. The fixer composition comprises a polyvalent metal salt, a cationic polymer, and a liquid vehicle, with a ratio of polyvalent metal salt to cationic polymer in a range of 1:1 to 3.5:1. The method comprises applying an ink composition onto the fixer composition; and applying an over-print varnish composition onto the ink composition. A printed article and a print set are also described.Type: ApplicationFiled: April 2, 2020Publication date: March 30, 2023Inventors: Mazi Bar, Alex Trubnikov, Eytan Cohen, Kfir Dar, Kobi Cohen
-
Patent number: 10947399Abstract: Herein is described a piezo-jettable varnish composition comprising a latex polymer having a weight averaged molecular weight Mw of greater than about 50 000, a polymeric salt derived from an acidic polymer having a weight averaged molecular weight Mw in the range of about 1000 to about 50 000, water, and a co-solvent, wherein, the latex polymer and polymeric salt are present in amounts such that the ratio of latex polymer to polymeric salt by weight is in the range of greater than about 1:1 to about 8:1.Type: GrantFiled: April 21, 2017Date of Patent: March 16, 2021Assignee: HP Scitex LTD.Inventors: Eytan Cohen, Alex Trubnikov, Shimrit Rubin, Efrat Soroker, Kfir Dar, Kobi Cohen
-
Patent number: 10618258Abstract: Herein is described a method of applying foil from a foil web to a substrate. The method may comprise: ink-jet printing a UV-curable adhesive onto the substrate in a predetermined image area; subjecting the adhesive to a first curing by exposing the adhesive to UV light in a dosage range of 140-170 mJ/cm2; passing the substrate and a foil web through a nip where the foil web is pressed against the adhesive; subjecting the adhesive disposed between the substrate and the foil web to a second curing by exposing the adhesive to UV light in a dosage of at least 250 mJ/cm2; and separating excess foil from the substrate, to leave foil on the predetermined image area. Substrates and UV-curable adhesives are also described.Type: GrantFiled: January 14, 2016Date of Patent: April 14, 2020Assignee: HP SCITEX LTD.Inventors: Eytan Cohen, Alex Trubnikov, Benjamin Dayan, Efrat Soroker, Shimrit Rubin
-
Publication number: 20200087523Abstract: An example of a liquid ink includes a pigment dispersion, a polyurethane dispersion, a polytetrafluoroethylene wax emulsion, a co-solvent, and a balance of water. A particle diameter of a polytetrafluoroethylene wax in the polytetrafluoroethylene wax emulsion is less than 50 nm. Examples of the liquid ink may be incorporated into a thermal inkjet printing system.Type: ApplicationFiled: October 10, 2016Publication date: March 19, 2020Inventors: Max Yen, Alex Trubnikov, Shimrit Rubin, Or Pinkesfeld, Marisa Samoshin, Yi-Hua Tsao, Eytan Cohen
-
Publication number: 20200024466Abstract: Herein is described a piezo-jettable varnish composition comprising a latex polymer having a weight averaged molecular weight Mw of greater than about 50 000, a polymeric salt derived from an acidic polymer having a weight averaged molecular weight Mw in the range of about 1000 to about 50 000, water, and a co-solvent, wherein, the latex polymer and polymeric salt are present in amounts such that the ratio of latex polymer to polymeric salt by weight is in the range of greater than about 1:1 to about 8:1.Type: ApplicationFiled: April 21, 2017Publication date: January 23, 2020Inventors: Eytan Cohen, Alex Trubnikov, Shimrit Rubin, Efrat Soroker, Kfir Dar, Kobi Cohen
-
Publication number: 20190150455Abstract: Provided are compositions including saponins and plant extracts having an antimicrobial activity.Type: ApplicationFiled: May 1, 2017Publication date: May 23, 2019Applicant: Y&B MOTHER'S CHOICE LTD.Inventors: Tova SILBERSTEIN, Rachel LUTZ, Eytan COHEN, Haya SANDORI-KAZAZ
-
Publication number: 20180319136Abstract: Herein is described a method of applying foil from a foil web to a substrate. The method may comprise: ink-jet printing a UV-curable adhesive onto the substrate in a predetermined image area; subjecting the adhesive to a first curing by exposing the adhesive to UV light in a dosage range of 140-170 mJ/cm2; passing the substrate and a foil web through a nip where the foil web is pressed against the adhesive; subjecting the adhesive disposed between the substrate and the foil web to a second curing by exposing the adhesive to UV light in a dosage of at least 250 mJ/cm2; and separating excess foil from the substrate, to leave foil on the predetermined image area. Substrates and UV-curable adhesives are also described.Type: ApplicationFiled: January 14, 2016Publication date: November 8, 2018Inventors: Eytan Cohen, Alex Trubnikov, Benjamin Dayan, Efrat Soroker, Shimrit Rubin
-
Patent number: 10000648Abstract: A photo-curable ink composition including an acrylic polymer or copolymer, a vinyl ester component, a multifunctional monomer, a photoinitiator and a pigment. Also disclosed herein is a method for forming a printed article and an ink-jet ink printing system using said photo-curable ink composition.Type: GrantFiled: October 9, 2011Date of Patent: June 19, 2018Assignee: HP SCITEX LTD.Inventors: Alex Trubnikov, Ziv Belman, Eytan Cohen
-
Patent number: 9969902Abstract: A mill base composition includes a compound comprising a divinyl ester of a dicarboxylic acid, a dispersing agent, and a pigment. The divinyl ester of the carboxylic acid includes from 2 to about 8 carbon atoms. The mill base composition is subjected to milling with milling beads to produce a milled mill base composition that functions as a pigment concentrate that may be added to an ink vehicle to form an ink composition suitable for use in inkjet ink devices. The milled mill base composition is particularly suited for UV curable ink compositions. A UV curable ink composition includes the pigment concentrate, one or more UV curable monomers, and one or more UV initiators.Type: GrantFiled: July 17, 2015Date of Patent: May 15, 2018Assignee: HP Scitex LTDInventors: Or Brandstein, Alex Trubnikov, Eytan Cohen, Ziv Belman, Kobi Cohen
-
Publication number: 20170306179Abstract: A mill base composition includes a compound comprising a divinyl ester of a dicarboxylic acid, a dispersing agent, and a pigment. The divinyl ester of the carboxylic acid includes from 2 to about 8 carbon atoms. The mill base composition is subjected to milling with milling beads to produce a milled mill base composition that functions as a pigment concentrate that may be added to an ink vehicle to form an ink composition suitable for use in inkjet ink devices. The milled mill base composition is particularly suited for UV curable ink compositions. A UV curable ink composition includes the pigment concentrate, one or more UV curable monomers, and one or more UV initiators.Type: ApplicationFiled: July 17, 2015Publication date: October 26, 2017Inventors: Or Brandstein, Alex Trubnikov, Eytan Cohen, Ziv Belman, Kobi Cohen
-
Patent number: 9587125Abstract: A photo-curable ink composition including an acrylic polymer or copolymer, a mono-functional monomer, a multi-functional monomer, a photo-initiator and a pigment. Also disclosed herein is a method for forming a printed article and an inkjet printing system using said photo-curable ink composition.Type: GrantFiled: May 22, 2013Date of Patent: March 7, 2017Assignee: Hewlett-Packard Industrial Printing LTD.Inventors: Eytan Cohen, Malan Calitz, Alex Trubnikov, Alona Makarsky
-
Patent number: 9556348Abstract: A photo-curable ink composition including colorant, water, photo-initiator, UV curable polyurethane dispersions, hydrophobic radiation-curable monomers and water-soluble or water-miscible radiation curable monomers. Also disclosed herein is a method for forming a printed article and an inkjet printing system using said photo-curable ink composition.Type: GrantFiled: August 29, 2013Date of Patent: January 31, 2017Assignee: Hewlett-Packard Industrial Printing LTD.Inventors: Or Brandstein, Nataly Lisitsin, Alex Trubnikov, Eytan Cohen
-
Patent number: 9550901Abstract: An inkjet printing method includes providing an inkjet composition, which includes a radiation curable monomer or oligomer, a photo-initiator, and an inhibitor present in an amount sufficient to prevent full curing of the radiation curable monomer or oligomer during an initial exposure to a curing energy. First drops of the inkjet composition are deposited onto a substrate. The curing energy is selected such that it is sufficient to substantially consume the inhibitor. The first drops are exposed to the curing energy, whereby the first drops retain substantially a same surface tension as a liquid drop of the inkjet composition. Second drops of the inkjet composition are deposited adjacent to the first drops. The first and second drops are exposed to the curing energy, whereby the first drops are at least partially cured and the second drops retain substantially the same surface tension as a liquid drop of the inkjet composition.Type: GrantFiled: May 28, 2014Date of Patent: January 24, 2017Assignee: Hewlett-Packard Industrial Printing LTD.Inventors: Alex Trubnikov, Lior Lifshitz, Yoav Bressler, Eytan Cohen, Danny Seidner
-
Publication number: 20170015853Abstract: A mill base composition includes a compound comprising a divinyl ester of a dicarboxylic acid, a dispersing agent, and a pigment. The divinyl ester of the carboxylic acid includes from 2 to about 8 carbon atoms. The mill base composition is subjected to milling with milling beads to produce a milled mill base composition that functions as a pigment concentrate that may be added to an ink vehicle to form an ink composition suitable for use in inkjet ink devices. The milled mill base composition is particularly suited for UV curable ink compositions. A UV curable ink composition includes the pigment concentrate, one or more UV curable monomers, and one or more UV initiators.Type: ApplicationFiled: July 17, 2015Publication date: January 19, 2017Inventors: Or Brandstein, Alex Trubnikov, Eytan Cohen, Ziv Belman, Kobi Cohen
-
Patent number: 9523012Abstract: A photo-curable ink composition obtained upon mixing a first printing liquid with a second printing liquid. The first printing liquid includes, at least, UV curable polyurethane dispersions and colorant; the second printing liquid includes, at least, hydrophobic radiation-curable monomers, water-soluble or water-miscible radiation curable monomers and photo-initiators. Also disclosed herein is a set of printing liquids including said first and second printing liquid; an inkjet printing system and a method for forming a printed article.Type: GrantFiled: April 3, 2014Date of Patent: December 20, 2016Assignee: Hewlett-Packard Industrial Printing LTD.Inventors: Or Brandstein, Alex Trubnikov, Eytan Cohen, Nataly Lisitsin
-
Patent number: 9505239Abstract: The present disclosure relates to a method of printing a radiation-curable ink composition on a substrate. A radiation-curable ink composition is deposited onto a substrate. The radiation-curable ink composition comprises a photoinitiator in an amount of not more than about 4.5 weight %. The deposited ink composition is irradiated with UV radiation. The irradiated ink composition is heated to a temperature of at least about 75 degrees C. The UV radiation is from an LED source or is centered at a wavelength selected from the group consisting of 375 nm, about 385 nm and about 395 nm.Type: GrantFiled: June 18, 2014Date of Patent: November 29, 2016Assignee: Hewlett-Packard Industrial Printing LTD.Inventors: Alex Veis, Alex Trubnikov, Milena Nadgorny, Eytan Cohen