Hp Indigo B.v.

Hewlett-packard Development Company, L.P.

Dima Libster

Sergey Inotaev

Raia Slivniak

Ido Finkelman

Eran Shiran

Dafna Shunary

Albert Teishev

Inna Tzomik

Danny Feldman

Dina Voloshin Firouz

Rafael Kahatabi

Katty Noorany

Jacob Ben-yakar

Gabi Habibi

There is described an intermediate transfer member for digital offset printing, comprising: a cured silicone release layer formed by curing a curable silicone release formulation comprising: a polyalkylsiloxane containing at least two vinyl groups having a weight average molecular weight of 60,000 g/mol or less; a polyalkylsiloxane containing two vinyl groups having a weight average molecular weight of at least 65,000 g/mol; a polyalkylsiloxane cross-linker containing at least two Si—H bonds; and a catalyst or a photoinitiator. There is also described a method of producing an intermediate transfer member, and a curable silicone release formulation for an intermediate transfer member.

Intermediate transfer member and method of production thereof

Described herein is a process for heat transfer printing, the process comprising: electrostatically printing a transparent release composition onto a transfer material to form a release layer disposed on the transfer material; electrostatically printing an electrostatic ink composition on the release layer to form an image layer disposed on the release layer; contacting a thermoplastic film with the image layer; contacting the thermoplastic film with a target substrate under conditions such that the thermoplastic film adheres to the target substrate and the release layer is softened; and separating the target substrate and the transfer material such that the thermoplastic film, image layer and release layer are transferred to the target substrate. A heat transferrable printed image is also described herein.

Heat transfer printing

A transfer surface of an intermediate transfer member in a printing apparatus is treated using an electrical discharge surface treatment. The treatment of the intermediate transfer member is to reduce negative dot gain from a previous image in subsequent printing or increase wettability of a silicone-based release layer.

Electrical discharge surface treatment

The present disclosure relates to an intermediate transfer member for use in electrophotographic printing. The intermediate transfer member comprises a release layer comprising fluoropolymer particles dispersed in a silicone polymer matrix.

Intermediate transfer members

A liquid electro-photographic, LEP, printing system, comprising a photo imaging plate, PIP, an intermediate transfer member, ITM, and a control unit. The control unit causes the system to initiate a maintenance program, wherein the maintenance program comprises driving the PIP and the ITM while disabling particle transfer to the PIP and applying a voltage difference between the PIP and surface portions of the ITM.

Maintenance program for liquid electro-photographic printing processes

A transfer surface of an intermediate transfer member is treated using an electrical discharge surface treatment. The intermediate transfer member is comprised in a printing apparatus.

Herein is disclosed an intermediate transfer member for liquid electrophotographic printing. The intermediate transfer member may include at least one layer including a thermoplastic polyurethane. A liquid electrophotographic printer and a method of forming an intermediate transfer member are also described.

Growing community of inventors

Nes Ziona, Israel

Dima Libster