A surface treatment method for a casing is disclosed, the casing being formed by the outer surface and four sidewalls of the casing. The surface treatment method includes a heat transferring film formed on the casing by a vacuum heat transfer process or a paint-drying process and a surface pattern layer formed on a portion of a surface of the heat transferring film opposite to the outer surface by a digital inkjet printer applying three different types of UV-curable ink.

A hybrid inkjet ink comprising a water miscible organic solvent, a UV radiation-curable material and appropriate photoinitiator, and an epoxide-containing material and printed decorations produced by applying the inkjet ink images to an aluminum substrate.

Various of the disclosed embodiments concern removable ultraviolet (UV) curable dye sublimation ink to be used in various printing systems and printing methods. In some embodiments, the ink includes a dye component, a UV curable component, and a soluble or solvent-sensitive component. In order to print an image on a substrate, the ink is heated to a temperature sufficient to cause sublimation of at least the dye component. During the sublimation process, the dye is able to permeate the substrate and form a printed image. After the transfer process has been completed, a solvent can be jetted onto the substrate that causes the soluble component to dissolve. The washing process ensures that any residual ink remaining on the surface of the substrate is substantially removed.

An approach to printing a nickel precursor ink on a wide range of substrates for electronics and magnetic applications is disclosed. The nickel ink reduces to elemental nickel following heating. The ink was printed using an ultrasonic aerosol printing technique. By sintering the nickel precursor ink in the presence of a homogeneous magnetic field, the reduced nickel complex formed continuously aligned nickel nanofibers axially aligned with the direction of the magnetic field. The fabrication of aligned interlayered nanofiber films provides opportunities to produce structures with enhanced isotropic electrical and magnetic properties. The resistivity of the film was found to be as low as 0.56 mΩ.Math.cm, and the saturation magnetization was measured to be 30 emu/g, which is comparable to bulk Ni. Magnetic anisotropy was induced with an easy axis along the direction of the applied magnetic field with soft magnetic properties.

Described herein are inks and coating compositions comprising semiconductor metal oxides and composites thereof, which are natural environmentally sustainable materials that may be recycled and/or reused indefinitely. Semiconductor metal oxides offer an alternative to relatively more toxic, non-sustainable, photo and heat-degrading, migrating traditional photoinitiator agents used in actinic radiation curable compositions. The semiconductor metal oxides and composites thereof absorb visible or UV-light as photocatalysts and/or semiconductors, or absorb electron beam radiation, forming radicals for radical events as polymerization reactions and color enhancement events.

An ink jet recording method includes discharging a ultraviolet curable ink of which viscosity is 7 mPa.Math.s or more at 20° C. from a head toward a recording medium, and curing the ultraviolet curable ink adhered to the recording medium, wherein, in the discharging, the temperature of the ultraviolet curable ink discharged is 20 to 30° C., and the viscosity of the ultraviolet curable ink at the temperature is 13 mPa.Math.s or less.

An inkjet printing method includes the steps of: a) printing a first print job by jetting a free radical UV curable white inkjet ink from a white ink print head and one or more free radical UV curable color inkjet inks from one or more other print heads in a UV curable inkjet printer; b) filling the white ink print head in the UV curable inkjet printer with a safeguard liquid including one or more free radical polymerizable monomers; c) printing a second print job employing only the one or more other print heads in the UV curable inkjet printer for jetting one or more free radical UV curable color inkjet inks; d) replacing the safeguard liquid of the white ink print head in the UV curable inkjet printer by UV curable white inkjet ink; and e) printing a third print job by jetting free radical UV curable white inkjet ink from the white ink print head and jetting one or more free radical UV curable color inkjet inks from one or more other print heads in the UV curable inkjet printer.

A method for manufacturing an electromagnetic shielding film of reduced thickness and a simplified manufacturing process includes forming a conductive ink layer by inkjet printing, on a component to be shielded, forming an insulative ink layer on the conductive ink layer by inkjet printing, and sintering the conductive ink layer and the insulative ink layer to form an electromagnetic shielding layer and an insulative layer, thereby obtaining the electromagnetic shielding film.

A thermal sensitive media for use with labeling or identification methods is disclosed. The thermal sensitive media comprises a media layer and a thermally sensitive record layer formed upon at least one surface of the media layer. The thermally sensitive record layer forms a visually discernable colored image in response to heat. However, the colored image is subject to degradation as a result of exposure to ultraviolet radiation within a known photodegradative wavelength range. An ultraviolet protective coating layer may then disposed over the thermally sensitive record layer. A lamination layer is positioned internal to the media layer and comprises a matrix of micro heating elements driven by radio frequency (RF) power. The matrix of micro heating elements are arranged in a pin array to energize the micro heating elements within the laminated media structure to create a simple numeric image.

Provided are a photocurable composition for imprints, having good releasability and temporal stability of the releasability, a pattern forming method, and a method for manufacturing a device.

This photocurable composition for imprints includes a monofunctional chained aliphatic (meth)acrylate (A1) not containing a fluorine atom, a bifunctional or higher polyfunctional (meth)acrylate (A2) not containing a fluorine atom, a monofunctional (meth)acrylate (B) containing a fluorine atom, and a photopolymerization initiator (C), in which the monofunctional chained aliphatic (meth)acrylate (A1) not containing a fluorine atom has a boiling point of 100° C. to 200° C. at a pressure of 0.67 kPa, and the monofunctional (meth)acrylate (B) containing a fluorine atom has a boiling point of 100° C. to 200° C. at a pressure of 0.67 kPa.