Treatment of release layer

US9643400B2 · kind B2 · utility

Assignee

• Landa Corporation Ltd. · IL

Inventors

• Benzion Landa · Nes Ziona, IL
• Sagi ABRAMOVICH · Raanana, IL
• Gregory Nakhmanovich · Rishon LeZion, IL
• Dan AVITAL · Mazkeret Batya, IL
• Galia Golodetz · Rehovot, IL
• Yehoshua Sheinman · Raanana, IL

Key dates

• Filing date: Mar 5, 2013
• Grant date: May 9, 2017
• Expiry date: Mar 5, 2033

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y10T428/31663
• WIPO field: Textile and paper machines
• WIPO sector: Mechanical engineering

Abstract

There is provided a method for treating a hydrophobic release layer of an intermediate transfer member for use in a printing process in which a negatively charged aqueous inkjet ink including a polymeric resin and a colorant is jetted onto said layer, the claimed method comprising contacting the release layer, prior to jetting the ink, with an aqueous solution or dispersion of a positively charged polymeric chemical agent reducing the tendency of a jetted ink droplet to bead up on the intermediate transfer member. Other embodiments, such as hydrophobic release layers having such chemical agents disposed thereupon and printed ink images comprising the same, are also described.