Landa Labs (2012) Ltd.

Dotz Nano Ltd.

Landa Labs Ltd.

Amit Haviv

Benzion Landa

Sagi Abramovich

Michael Nagler

Ofer Aknin

Yaakov Valdman

Amir Lion

Yoni Engel

Michael Shtein

Avigdor Kaner

Yonit Boguslavsky

Sagi Abramovitch

A printing assembly for thermal transfer printing is disclosed. The assembly comprises at least one first printing system comprising a transfer member having an imaging surface on the front side, a coating station at which a monolayer of thermoplastic particles is applied to the imaging surface, an imaging station at which electromagnetic radiation (EM) is applied, optionally via the rear side of the transfer member, to selected regions of the imaging surface to render the particles coating the selected regions tacky, a transfer station at which only the regions of the particles coating that have been rendered tacky are transferred to a substrate to form an adhesive image; and at least one more downstream printing system. The transfer member includes on its front side an EM radiation absorbing layer, the imaging surface being formed on, or as part of, the absorbing layer, and on its rear side a body which can optionally be transparent to EM radiation.

Thermal transfer printing

There are disclosed curable elastomeric compositions comprising at least one reactive curable silicone pre-polymer capable of forming a silicone elastomer upon curing thereof, and a plurality of hydrophilic carbon black particles dispersed therein, as well as their corresponding cured products. Such compositions, once cured, can be used for the preparation of numerous articles of wide industrial applicability.

Methods for preparing compositions comprising carbon black

Method and system for thermal transfer printing are disclosed. The system includes a transfer member having an imaging surface on the front side, a coating station at which a monolayer of particles made of, or coated with, a thermoplastic polymer is applied to the imaging surface, an imaging station at which electromagnetic radiation (EM) is applied via the rear side of the transfer member to selected regions of the particles-coated imaging surface to render the particles thereon tacky within the selected regions, and a transfer station at which only the regions of the particles coating that have been rendered tacky are transferred to a substrate. The transfer member includes on its rear side a body transparent to EM radiation and on its front side an EM radiation absorbing layer, the imaging surface being formed on, or as part of, the absorbing layer.

The disclosure is directed to systems, compositions and methods for tagging, identifying and authenticating bulk liquids. Specifically, the disclosure relates to methods, compositions and systems for selectively and specifically identifying bulk liquids as authentic using, as a tagging compound, photoluminescent carbon nanostructures (PCN's) suspended in a continuous phase that is thermodynamically incompatible with non-polar bulk liquid and/or substantially low concentration of PCNs; and incorporating the suspension into the liquid, wherein the suspension is incorporated at a concentration of continuous phase that is at least one of being below the solubility limit of the suspension's continuous phase in the bulk liquid and a concentration that cannot be observed unaided to the naked eye.

Bulk liquid tagging, identifying and authentication

Methods for producing, from hydrophilic carbon black particles and at least one curable hydrophobic silicone pre-polymer, elastomeric compositions comprising dispersed carbon black particles, as well as their corresponding cured products. Once the curing process has taken place, such compositions can be used for the preparation of numerous articles of wide industrial applicability.

There is disclosed a layered article that can be used in indirect printing, in analog or digital processes. The layered article, when configured as a transfer member, may serve to receive an ink in any form, allow the ink to be treated so as to form an ink image, and permit the application of the ink image on a substrate. The transfer member comprises a support layer and an imaging layer, which may be formed of a silicon matrix including dispersed carbon black particles. Methods for preparing the same are also disclosed.

Transfer member for printing systems

A method and apparatus for thermal transfer printing onto selected regions of a substrate are disclosed. The method comprises: a) providing a transfer member having an imaging surface; b) coating the imaging surface with particles formed of, or coated with, a thermoplastic polymer; c) removing substantially all particles that are not in direct contact with the imaging surface to leave a uniform monolayer particle coating on the imaging surface; d) applying energy to selected regions of the imaging surface to heat and render tacky particles of corresponding regions of the monolayer coating; and e) pressing at least portions of the imaging surface and the substrate surface against one another, either during and/or after application of energy, to cause transfer to the surface of the substrate of the particles of the corresponding regions that have been rendered tacky. The monolayer coating can be replenished with new particles and the cycle repeated.

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Petach Tikva, Israel

Amit Haviv