摘要:
An ink set includes a first ink and a second ink, where each of the inks has a conductivity that is less than 200 pS/cm. The first ink includes a first pigment of a first color; a carrier fluid; and a concentration of a dispersant. The second ink includes a second pigment of a second color that is different from the first color; the same carrier fluid as the first ink; and substantially the same concentration of the dispersant as the first ink.
摘要:
Methods of surface modification of polymer particle are useful in the development of marking fluids. The surface modification includes saponifying one or more acrylic ester groups on a surface of the polymer particle.
摘要:
A digital printing composition includes a carrier and a colorant. The carrier includes a hydrocarbon having at least one unsaturated bond. The hydrocarbon is configured to at least one of polymerize or crosslink in the presence of a charged species produced from a corona generator.
摘要:
A printing system (30, 40, 40′, 50, 50′) includes at least one ejector coupled to a reservoir (38) that is configured to contain a printing composition including a hydrocarbon having at least one unsaturated bond. The hydrocarbon is configured to at least one of polymerize or crosslink in the presence of a reactive species. The at least one ejector is configured to eject the printing composition onto a surface (34, 36, 10). The system (30, 40, 40′, 50, 50′) further includes a corona generator (32, 32′, 32″, 32′) configured to generate the reactive species in situ. The corona generator (32, 32′, 32″, 32′) is positioned with respect to the reservoir (38) such that the reactive species is exposed to the printing composition after the printing composition has been ejected onto the surface (34, 36, 10). The polymerizing and/or the cross-linking of the hydrocarbon is configured to form a polymer matrix (12) from the ejected printing composition.
摘要:
Ink composition including non-VOC liquid carrier and method of making the same are disclosed. A disclosed example ink composition has a viscosity that is below about 70.0 cps and includes non-VOC liquid carrier, dispersing agents and pigment particles having an average size of less than about 10 μm. Also disclosed are method of use and method of making such ink composition containing non-VOC liquid carrier.
摘要:
A polymer-encapsulated pigment and a method of modifying a pigment use functional groups of an interface layer to attach a polymer to a pigment composition. The polymer-encapsulated pigment includes a pigment composition, a polymer and an interface layer. In the polymer-encapsulated pigment and the method, the interface layer is covalently attached to an outer surface of the pigment composition. The polymer is attached to the interface layer with a linking group. The linking group is attached to the interface layer by a covalent bond of a functional group. The linking group includes a nucleophilic carbon atom to which the polymer is covalently attached.
摘要:
An apparatus for conducting single-pass filtration of ink waste is disclosed. The apparatus includes: a filter connected to a housing unit and a plurality of absorbent layers within the housing unit, wherein the plurality of absorbent layers are in any order and include: a layer for removing metal and polar compounds, a layer for removing non-polar color impurities, a layer for removing acid functional components, a layer for removing additives with polar or protic functional groups, and a layer for removing residual water. A process and a system that include or utilize the apparatus are also disclosed.
摘要:
Liquid electrophotographic ink concentrates and methods of preparing the same are disclosed herein. An example of the method includes preparing a mixture of ink components using a first predetermined thermal profile. The ink components include a resin, a pigment, and a carrier. The method further includes preparing a microfluidizer with a composition at a temperature within a predetermined range and processing the mixture in the prepared microfluidizer to form the concentrate. Processing the mixture includes pressure-feeding the mixture into the prepared microfluidizer, passing the mixture through the prepared microfluidizer for a predetermined number of times, and utilizing a second predetermined thermal profile while passing the mixture through the prepared microfluidizer. A viscosity modifier is added to the mixture before and/or during the processing of the mixture.
摘要:
A polymer-encapsulated nanoparticle system includes a non-aqueous medium; and polymer-encapsulated nanoparticles formed in situ in the non-aqueous medium. Each polymer-encapsulated particle has a diameter that is less than 1 micron, and includes a solid particle core, and a polymer coating established directly on the solid particle core.
摘要:
The present disclosure provides methods and composition directed towards a single batch latex ink-jet ink. In one embodiment, a method of manufacturing a single batch latex ink-jet ink can comprise emulsifying a pigment and a monomer in a solvent, and polymerizing the monomer with a reaction condition sufficient to encapsulate the pigment and sufficient to form individual latex particulates thereby forming a single batch latex ink-jet ink. The ink can contain less than about 0.5 wt % of latex particulates having a diameter of 50 nm or less, can contain about 1 wt % to about 10 wt % of latex particulates having a diameter of about 100 nm to about 250 nm and can contain about 3 wt % to about 5 wt % of encapsulated pigment.