The invention relates to an inkless printing method. The invention also relates to an inkless printing device, in particular configured to perform at least a part of the method according to the invention. The invention furthermore relates to a substrate provided with at least one printed marking realised by applying the method according to the invention and/or the device according to the invention.

The invention relates to an inkless printing method. The invention also relates to an inkless printing device, in particular configured to perform at least a part of the method according to the invention. The invention furthermore relates to a substrate provided with at least one printed marking realised by applying the method according to the invention and/or the device according to the invention.

A heat-sensitive recording material having a carrier substrate and a fusible layer disposed on one side of the carrier substrate. The fusible layer comprises an amide wax having a melting point in the range from 60° C. to 180° C., an inorganic pigment, and a polymeric binder.

The invention relates to compositions for forming two and three-dimensional artwork, pictures, works of design and architectural works that are interactive, responsive or able to change. These compositions can include at least one nanomaterial. They can include a light emitter that is one or a combination of: an OLED; a light-emitting display screen that is partially or entirely transparent or translucent; a light-emitting display screen capable of flexing or folding; or a thin light-emitting display screen. In different embodiments, the composition includes electronic paper; a visible tangible transparent or translucent form or display capable of aesthetic change; a visible interactive or responsive intangible hologram; or an organic transistor, a transparent transistor, an organic light-emitting transistor (OLET) or a transistor that is a combination of these; or a conductive polymer. Aesthetic works of the invention are created, developed, changed, reworked or recreated interactively, in a responsive process, repeatedly or continuously.

The invention relates to compositions for forming two and three-dimensional artwork, pictures, works of design and architectural works that are interactive, responsive or able to change. These compositions can include at least one nanomaterial. They can include a light emitter that is one or a combination of: an OLED; a light-emitting display screen that is partially or entirely transparent or translucent; a light-emitting display screen capable of flexing or folding; or a thin light-emitting display screen. In different embodiments, the composition includes electronic paper; a visible tangible transparent or translucent form or display capable of aesthetic change; a visible interactive or responsive intangible hologram; or an organic transistor, a transparent transistor, an organic light-emitting transistor (OLET) or a transistor that is a combination of these; or a conductive polymer. Aesthetic works of the invention are created, developed, changed, reworked or recreated interactively, in a responsive process, repeatedly or continuously.

Disclosed is a reveal substrate comprising: a) a top substrate layer comprising an opaque polymer sensitive to application of heat or pressure, and becoming transparent upon being heated to a predetermined temperature or subjected to a predetermined pressure, and b) a bottom substrate layer having one or more colored areas on a top surface thereof, disposed such that said one or more colored areas are obscured by the opaque polymer prior to being heated to the predetermined temperature or subjected to the predetermined pressure, and are revealed subsequent thereto, wherein: each of the one or more colored areas comprises at least two different colors, and comprises a two-dimensional matrix formed by a plurality of color blocks, each one of the plurality of color blocks having only one color, and the color blocks are arranged to have a repeating color pattern. A method of using the same is also disclosed.

Disclosed is a reveal substrate comprising: a) a top substrate layer comprising an opaque polymer sensitive to application of heat or pressure, and becoming transparent upon being heated to a predetermined temperature or subjected to a predetermined pressure, and b) a bottom substrate layer having one or more colored areas on a top surface thereof, disposed such that said one or more colored areas are obscured by the opaque polymer prior to being heated to the predetermined temperature or subjected to the predetermined pressure, and are revealed subsequent thereto, wherein: each of the one or more colored areas comprises at least two different colors, and comprises a two-dimensional matrix formed by a plurality of color blocks, each one of the plurality of color blocks having only one color, and the color blocks are arranged to have a repeating color pattern. A method of using the same is also disclosed.

Direct thermal recording media are designed to operate based on a thermally-induced change of state rather than a thermally-induced chemical reaction between a leuco dye and an acidic developer. The media use two types of solid scattering particles, one of which changes its state from solid to liquid during printing, and the other of which does not. The former particles, upon melting, fill spaces between the latter particles, thus eliminating or substantially reducing light scattering, which makes an underlying colorant visible at selected print locations where heat is locally applied. The media can provide high quality thermally-produced images at print speeds at least as high as 10 inches per second (ips).

Direct thermal recording media are designed to operate based on a thermally-induced change of state rather than a thermally-induced chemical reaction between a leuco dye and an acidic developer. The media use two types of solid scattering particles, one of which changes its state from solid to liquid during printing, and the other of which does not. The former particles, upon melting, fill spaces between the latter particles, thus eliminating or substantially reducing light scattering, which makes an underlying colorant visible at selected print locations where heat is locally applied. The media can provide high quality thermally-produced images at print speeds at least as high as 10 inches per second (ips).

Non-phenolic direct thermal recording media have a thermally responsive layer containing a leuco dye and a plurality of non-phenolic developers including 1,3-diphenyl urea (DPU) and urea urethane (UU). This chemistry enables multi-purpose recording materials capable of withstanding multiple different types of environmental conditions or agents—such as a water soak, contact with polyvinyl chloride meat wrapping film, boiling water, dry and humid heat, sunlight, and contact with hand sanitizer. The unique non-phenolic chemistry allows the product's thermally responsive layer to have an ultra-low coat weight, less than 1.48 g/m.sup.2.