Hp Indigo B.v.

Hewlett-packard Development Company, L.P.

Hewlett-packard Indigo B.v.

Twine Solutions Ltd.

Ilanit Mor

Albert Teishev

Tony Azzam

Haim Yosef Cohen

Guy Nesher

Getahun Biadglin

Samer Farran

Yael Kowal-Blau

Julia Kornilov

Nurit Carmel-Barnea

Yaron Grinwald

Gil Bar-Haim

Alon Moshe

Gilad Gotesman

Omer Gila

Daihua Zhang

Yaacov Almog

Nava Klein

Emad Masoud

Benjamin Dayan

Alina Grishman

Yossi Rosen

Mirta Perlman

Roi Liraz

Eyal Shelef

Shahar Stein

Eyal Bachar

Gregory Katz

Elliad Silcoff

Marc Klein

Fernanda Orlik

Giries Kadis

Stella Stolin Roditi

Amir Ofir

Noam Parvin

Mirit Shitrit

Eyal Bodinger

Swissa Shay

Anatoly Sobolevsky

Yoram Zilberberg

Alon Navon

Neta Filip-Granit

Adi Inbar

Basile Verdene

Provided in one example herein is a liquid electrophotographic varnish composition. The composition includes resin particles each including a polymeric resin mixture, which includes a first polymeric resin including an ethylene-based polymer; and a second polymeric resin including a polyamide. The composition also includes a carrier fluid.

Varnish compositions

A system, a method and a machine for treating threads or parts thereof, the machine having one or more cartridges each configured for containing thread treatment-material therein; one or more injectors, each injector being configured for applying treatment-material from its respective cartridge over a passing portion of the thread; drive means for operating the one or more injectors; and a communication and control unit for receiving treatment plan data indicative of at least one machine readable treatment related parameter associated with at least one treatment effect for each thread portion to be treated for controlling the treatment effect of each passing thread portion, according to the received treatment plan data. A designated application of the system may be used having a unique user interface allowing creating treatment plans.

System, machine and method for treating threads or parts thereof

A method for calibrating a dyeing machine, comprising: for each of multiple colors: performing a maximizing stage to determine an effective maximum ink dispensing rate corresponding to an effective maximum colorimetric value for the dyeing machine; performing a linearizing stage, comprising: determining multiple ink dispensing rates for performing the linearizing stage by dividing the effective maximum ink dispensing rate into multiple intervals, calculating from the effective maximum colorimetric value, a linear correspondence between the multiple ink dispensing rates and multiple calculated colorimetric values, dyeing a set of substrates according to the multiple ink dispensing rates, acquiring color values of the dyed set of substrates, interpolating a non-linear correspondence between the multiple ink dispensing rates and the acquired color values, and mapping the linear correspondence to the non-linear correspondence.

Color calibration algorithm

A color detection system, comprising: a card having printed thereon a color chart comprising multiple colored areas, and at least one grayscale area; a camera configured to acquire an image comprising a pixel representation a sample positioned adjacent to the card; a storage device configured to store reference data corresponding to the color chart and the at least one grayscale area; and a processor configured to: perform a grayscale correction to the pixel representation of the color chart and sample using a grayscale correction transformation between the pixel representation the grayscale area and the corresponding reference data, estimate colorimetric coordinates for the sample by applying to the respective grayscale corrected pixel representation, a transformation between the grayscale corrected pixel representation of the color chart and the corresponding colorimetric reference data, and convert the estimated colorimetric coordinates for the sample to RGB.

Color detection algorithm

Herein is disclosed a method of printing comprising the steps of applying an ink comprising a thermoplastic resin to a print substrate using an electrostatic printing process; and applying an overcoat composition comprising a crosslinking agent to the ink after applying the ink to the print substrate, such that the thermoplastic resin of the ink becomes crosslinked on the print substrate due to interaction with the crosslinking agent.

Electrostatic printing

The present disclosure relates to an electrophotographic composition that comprises a polymer resin mixture and a liquid carrier. The polymer resin mixture comprises (i) an olefin polymer A having acid and/or ester side groups and a melt index of 22 to 100 g/10 min; and (ii) an olefin polymer B having a melt index of 1 to 20 g/10 min. The olefin polymer B forms 1 to 50 weight % of the polymer resin mixture.

Electrophotographic composition

The present disclosure relates to a liquid electrophotographic composition comprising: a polymer resin comprising a side group comprising a cross-linkable moiety; and a carrier liquid.

Liquid electrophotographic composition

A transparent electrophotographic varnish composition comprises a charge adjuvant and inorganic filler particles. A method of manufacturing an electrophotographic varnish composition comprises heating a thermoplastic resin mixture until the resin has melted; cooling the resin mixture to form resin particles; contacting the resin particles with a charge adjuvant and inorganic filler particles to form composite particles or a mixture of particles; and combining the composite particles or particulate mixture with a carrier fluid to form the electrophotographic varnish composition. A liquid electrophotographic printing system and a print substrate are also provided.

Electrophotographic varnish

A liquid electrophotographic varnish composition comprising: a polymer resin; an epoxy-based cross-linking agent; a solid catalyst comprising at least one amine group; and a carrier liquid.

Liquid electrophotographic varnish composition

An electrophotographic varnish composition that comprises, in a liquid carrier, a polymeric resin; an epoxy-based cross-linking agent, a mono-epoxy diluent and a metal catalyst and/or a photo-initiator. Also described herein is a method for making such electrophotographic varnish composition.

Electrophotographic varnish composition

Herein is disclosed a liquid electrophotographic varnish composition comprising: a polymer resin; an epoxy-based cross-linking agent; a metal catalyst and/or a photo-initiator for catalyzing the cross-linking; and a carrier liquid.

Herein is disclosed an electrostatic ink composition, wherein the composition is formable by combining: chargeable particles comprising a resin, a charge director comprising a sulfosuccinate salt, and a non-polymeric, non-fatty acid having a pK, when measured in water at 20&#xb0; C., of at least 1. Also disclosed herein is a method of forming an electrostatic ink composition, and a method of electrostatic printing.

Electrostatic ink compositions

Herein is disclosed a method of printing comprising the steps of:

The present disclosure relates to a method for coating conductive metallic pigment particles, the method comprising: providing a first liquid carrier containing a dissolved resin and suspended conductive metallic pigment particles; effecting precipitation of the resin from the first liquid, such that a coating of the resin is formed on the conductive metallic pigment particles. Also disclosed herein are conductive metallic pigment particles, and an electrostatic ink composition comprising coated conductive metallic pigment particles.

Metallic pigment particles and electrostatic inks

Methods of Printing and Electrostatic Ink Compositions Herein are disclosed electrostatic ink compositions, methods of printing and printed substrates. In some examples, the electrostatic ink composition comprises a carrier liquid, particles comprising a graft co-polymer comprising an acrylate polymer backbone onto which has been grafted polysiloxane side chains, wherein the particles are dispersed in the carrier liquid.

Methods of printing and electrostatic ink compositions

Growing community of inventors

Kiryat Ono, Israel

Ilanit Mor