公开(公告)号：US20240012348A1

公开(公告)日：2024-01-11

申请号：US17913408

申请日：2020-04-07

Applicant: HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P.

Inventor： Boris Kaziev ,  Daniel Skvirsky ,  Albert Teishev

IPC: G03G15/16 ,  G03G9/12

CPC classification number: G03G15/162 ,  G03G9/12

Abstract: Described herein is a process for preparing a flexible packaging material comprising contacting a first flexible material of a layered substrate with an intermediate transfer member; wherein the layered substrate comprises the first flexible material and a thermally activatable laminating material disposed on the first flexible material; transferring an electrophotographic ink composition from a photoimaging plate onto the thermally activatable laminating material of the layered substrate on the intermediate transfer member to form an image layer on the thermally activatable laminating material; and contacting, under conditions of heat and/or pressure, the image layer with a second flexible material thereby forming the flexible packaging material. Also described herein is an electrophotographic printer for use in the process for preparing a flexible packaging material.

公开(公告)号：US20220091520A1

公开(公告)日：2022-03-24

申请号：US17417421

申请日：2019-07-18

Applicant: Hewlett-Packard Development Company, L.P.

Inventor： Boris Kaziev ,  Inna Tzomik ,  Faina Kogan

IPC: G03G8/00 ,  G03G9/13 ,  C09D11/107 ,  C09D11/101

Abstract: A method of forming a flexible printed material is described. The method comprises applying a layer of primer onto a flexible substrate; electrostatically printing onto the layer of primer a liquid electrostatic ink composition; applying a curable overprint varnish composition onto the printed electrostatic ink composition and curing the overprint varnish composition using electron beam irradiation. The curable overprint varnish composition comprises an ethylenically unsaturated monomer, an ethylenically unsaturated oligomer, or mixtures thereof, and less than 10 wt. % of a cross-linking additive based on the total weight of the curable overprint varnish composition. A flexible package comprising the flexible printed material is also described.

公开(公告)号：US11982974B2

公开(公告)日：2024-05-14

申请号：US17417421

申请日：2019-07-18

Applicant: Hewlett-Packard Development Company, L.P.

Inventor： Boris Kaziev ,  Inna Tzomik ,  Faina Kogan

IPC: G03G8/00 ,  C09D11/101 ,  C09D11/107 ,  G03G5/14 ,  G03G5/147 ,  G03G9/13

CPC classification number: G03G8/00 ,  C09D11/101 ,  C09D11/107 ,  G03G5/14 ,  G03G5/147 ,  G03G9/13

Abstract: A method of forming a flexible printed material is described. The method comprises applying a layer of primer onto a flexible substrate; electrostatically printing onto the layer of primer a liquid electrostatic ink composition; applying a curable overprint varnish composition onto the printed electrostatic ink composition and curing the overprint varnish composition using electron beam irradiation. The curable overprint varnish composition comprises an ethylenically unsaturated monomer, an ethylenically unsaturated oligomer, or mixtures thereof, and less than 10 wt. % of a cross-linking additive based on the total weight of the curable overprint varnish composition. A flexible package comprising the flexible printed material is also described.