Kornit Digital Ltd.

Kornit Digital Technologies Ltd.

Jacob Mozel

Jacob Mann

Muhammad Iraqi

Ofer Ben-Zur

Allon Shimoni

Asaf Lupo

Asaf Kaplan

Novel inkjet ink compositions for forming an image in a form of an elastic film attached to a surface of a stretchable and/or flexible substrate and processes utilizing same for inkjet printing color images on various substrates such as colored and absorptive or impregnable stretchable materials, which are characterized by heightened efficiency in process time, ink and energy consumption, as well as products having durable, wash-fast and abrasion-fast images printed thereon by the process, are disclosed. The novel ink compositions comprise a first part, which contains a property-adjusting agent and a carrier, and a second part which contains an emulsified property-sensitive proto-elastomeric film-forming agent, a colorant and a carrier, such that the second part congeals upon contact with the property-adjusting agent. The second part is digitally applied to the substrate less than 1 second following the application of the first part to the substrate.

Inkjet compositions and processes for stretchable substrates

Provided are compositions and processes formulated and practiced to reduce the friction-coefficient of the printed area and also of the non-printed areas around the image, wherein the compositions are formulated for use by wet-on-wet techniques in-line of the pre-curing printing process, without pretreating the fabric for softness and smoothness prior to the printing process. The compositions comprise at least 15% by weight of a friction-coefficient reduction agent and having a pH lower than 6.5 so as to effect upon contact immobilization of an ink composition that is being digitally applied on the substrate.

Low-friction images by inkjet printing

An inkset and a process for direct inkjet printing color images on dyed synthetic fabrics is provided herewith, based on forming an image on the fabric in the form of a well-adhered crosslinked film, using an acid-immobilized ink composition, while avoiding dye migration from the fabric to the image in the process of curing the film, using a low-temperature curing crosslinking agent and curing the image at a temperature lower than 120&#xb1;5&#xb0; C.

Inkjet printing on dyed synthetic fabrics

Provided herein is an inkjet dye-sublimation ink composition that is formulated to interact with an immobilizing composition such that the ink composition coagulates on the surface of an absorptive substrate, thereby substantially limiting soaking of the ink composition into the substrate. Also provided are a printing process and a printing machine, wherein the ink composition is directly printed on the substrate concomitantly with the immobilizing composition, and thereafter undergo heat-pressing to afford a dye-sublimation transfer of the dye to the substrate, thereby forming an image which is characterized by sharp and well defined edges of the dyed areas.

Dye-sublimation inkjet printing for textile

Provided herein is an ink immobilizing composition that includes colloidal wax particles and a property-adjusting agent, being capable of causing immobilization of a property-sensitive ink composition upon contact therebetween on the surface of a substrate, as well as a process of printing a rub-resistant image, a kit for printing a rub-resistant image, and a substrate having a rub-resistant image printed thereon.

Rub-resistant inkjet composition

A process for printing a coagulating ink composition directly on a substrate being supported by an adhesive surface, effected by cleaning the adhesive surface with a cleaning composition capable of removing residues of coagulated ink composition from the adhesive surface is provided, as well as a system for carrying out the process and a formulation for the cleaning composition. The cleaning composition comprises a weak organic base (preferably EDTA salts) and is characterized by a pH level of at least 7.5.

Process and system for continuous inkjet printing

A dye discharge composition exhibiting extended shelf life and/or pot life and high suitability for inkjet printing on dyed substrates, is disclosed. The composition comprises a reducing agent such as, for example, a sulfur-based reducing agent, and a chelating agent, such as a sodium salt of a polyamino carboxylic acid chelating agent. Use of the dye discharge composition in combination with a translucent colored composition and an optional opaque underbase composition, for forming an image on a dyed substrate is also disclosed. Processes for inkjet printing of an image on a dyed surface using the dye discharge composition, kits for use in such processes or an ink formulation containing same are also disclosed.

Dye discharge inkjet ink compositions

A process and a kit for inkjet printing high resolution color and stretchable images on dyed synthetic substrates are provided.

Disclosed are a process for inkjet printing color images on various substrates using a formaldehyde-free crosslinking agent in the ink composition, which is therefore devoid of formaldehyde emission and suitable for health-aware manufacturing practices, as well as objects having images and designs printed thereon which are devoid of formaldehyde and therefore suitable for use by infants.

Formaldehyde-free inkjet compositions and processes

A textile printing machine includes a plurality of printing modules arranged in an m&#xd7;n matrix, the matrix having m first rails in a transverse direction for supporting printing functional units such as print heads, and n second rails in a longitudinal direction for supporting printing trays that carry textiles to be printed, each module defining a meeting point for a textile printing related operation to take place. The matrix size is at least two by two and provides flexible linear printing sequences that are able to share resources such as print heads.

Growing community of inventors

Kfar-Saba, Israel

Jacob Mozel