Hp Indigo B.v.

Alexander Stolov

Inna Tzomik

Daniel Skvirsky

Faina Kogan

Hannoch Ron

Raia Slivniak

Sergio Brandriss

Einat Glick

Gleb Romantcov

Asaf Salant

Chen Zigdon

David Idan

Dani Tulchinski

Shani Maor

Roy Beeri

Yaniv Kachlon

Roy Lubinski

Herein is described a method of providing a printed label. The method comprises: providing a printed label substrate having disposed thereon an electrostatically printed ink; applying a radiation curable overcoat composition to the printed ink, wherein the radiation curable overcoat composition comprises: radiation curable monomers and/or oligomers; a photoinitiator; and an organosilane having at least one hydrolysable group. Printed labels and an ink and overcoat set are also described herein.

Labels

A process for preparing a flexible packaging material () by laminating at a temperature greater or equal to 50&#xb0; C. a printed substrate coated with a primer () comprising poly(acrylic acid) and/or poly(methacrylic acid) with another substrate coated with a thermal active material (), to prepare a high performance flexible packaging multilayer material () showing improved shelf-life, without requiring curing stage of intermediate layers.

Immediate and high performance flexible packaging applications using thermal lamination and new primer technology

Herein is described a method of providing a printed label. The method comprises: providing a printed label substrate having disposed thereon an electrostatically printed ink; applying a UV curable overcoat composition to the printed ink, wherein the UV curable overcoat composition comprises (i) a component selected from UV curable monomers and UV curable oligomers, and (ii) a slip agent; curing the overcoat composition under UV irradiation with an output power of 2500 W or less. Printed labels and an ink and overcoat composition set are also described herein.

Printed labels with an overcoat

There is provided a process for preparing a laminate, comprising electrostatically printing a transparent electrostatic ink composition onto a base material, wherein the transparent electrostatic ink composition comprises a thermoplastic resin, and a charge adjuvant and/or a charge director; providing a substrate; and contacting the substrate with the transparent electrostatic ink composition while the thermoplastic resin is softened or molten, and then allowing the thermoplastic resin to harden, so that the electrostatic ink composition adheres the base material and the substrate together. Laminate materials are also disclosed.

Laminates

There is provided a laminate, comprising a base material, a transparent electrostatic ink composition selectively disposed on portions of the base material, the transparent electrostatic ink composition comprising a thermoplastic resin, and a charge adjuvant and/or a charge director; a substrate adhered to the base material at the portions of the base material by the transparent electrostatic ink composition. A process for preparing a laminate and a blister pack are also disclosed.

A method for determining coat weight of a transparent primer coating for liquid electrophotographic printing processes is described, in which an optical brightening agent is added to an aqueous transparent primer composition in an amount of less than 0.1 wt. % based on the total solids content of the primer composition to produce a test composition, the test composition is applied onto a test substrate to produce a transparent primer coating, the fluorescence of the transparent primer coating is measured, and the coat weight of the transparent primer coating based on the fluorescence of the transparent primer coating is determined.

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Nes Ziona, Israel

Alexander Stolov