Abstract:
A catalytic liquid toner (16) is electrostatically printed on an amorphous silicon layer (20) (or a substrate (22) that is to support such a layer), in an image-wise fashion. After the liquid toner is dried, the amorphous silicon layer (20) is heated, preferably using rapid thermal annealing, to approximately 550 DEG C for about 2 minutes to cause the toned areas to be converted to polysilicon. The toner used during the printing action is a dispersion of resin particles which contain a metallic catalyst, such as palladium, nickel or chromium.
Abstract:
A substrate suitable for printing a toner image thereon, comprising: a sheet of plastic; an underlayer coating, on the sheet of plastic, comprising a first polymer material preferably comprising a polymer chosen from the group consisting of amine terminated polyamide, a silane coupling agent and amino propyl teriethoxy silane; an overlayer coating, directly on the underlayer, comprising a second polymer material and having an outer surface to which a toner image can be fused and fixed, the second polymer preferably consisting essentially of a polymer chosen from the group consisting of ethylene acrylic acid copolymer, polyvinyl pyridine and styrene butadine copolymer.
Abstract:
Apparatus and method are provided for transferring toner particles (96) at a relatively high speed from a magnetically created latent image onto a toner-receiving medium (15) such as paper without sacrificing edge acuity or providing unwanted background, the latent image having been magnetically recorded on a magnetizeable web (13) such as magnetic tape. Generally, in both impact and electrostatic transfer systems, the record medium and/or paper are moved relative to each other prior to or during transfer. However, we have found that as the speeds of relative approaching motion between the toned medium (13) and the toner-receiving medium (15) are increased to meet higher print speed requirements, the associated velocities of escaping air (aerodynamic forces) in the transfer region proximate to the record medium (13) and the paper increase correspondingly, ultimately causing disruptive air currents (Figs. 4A and 4B) to form in the transfer region and the toner (96) present on either the medium (13) or paper (15) to disperse or spread. This toner disturbance produces poor character image edge acuity and unwanted background in, between, and around the character images. The invention provides close control of the velocity of the relative approaching (and separating) movement between the toned medium (13) (tone tape segment) and the toner-receiving medium (15) (paper) at the transfer station, maintaining such velocity at or below a predetermined maximum relatively high speed velocity which varies as a function of the instantaneous separation between the two media.
Abstract:
Foil images are formed simultaneously with color toner images on a receiver material. One or more color toner latent images are formed on the receiver material using dry color toners. Each dry color toner has a (a) polymeric resin, a (b) pigment colorant, and a (c) wax that has a melting temperature defined as Tcolor. A foiling latent image is formed using a dry foiling toner that has a (a') polymeric resin and a (c') wax that has a melting temperature defined as Tfoiling. The foiling latent image is in an area that is different from the color image areas and Tfoiling is less than Tcolor by at least 15℃. All toners are simultaneously fixed in a fuser oil-free fixing operation. A printing foil can be brought into intimate contact with the fused foiling toner at a foiling temperature (FT) that is greater than Tfoiling but less than Tcolor.
Abstract:
A toner image is transferred to a heat softened thermoplastic outer layer (21) of a receiving sheet (20). The toner is transferred from an image member (1) predominantly by heating the receiving sheet to a temperature which both softens the thermoplastic layer and, when the thermoplastic layer contacts the toner, sinters the toner sufficiently to cause toner to adhere both to the thermoplastic layer and to other particles of toner. To prevent blistering, the temperature to which the thermoplastic layer must be raised can be lowered, for example, to 100 degrees C by also heating the image member (1) to a temperature, above ambient, but less than the temperature that would either do damage to the image member or cause the toner to stick to it.
Abstract:
A transparency that is used to project an image onto a viewing surface is prepared by an electrographic copying process. An element used in this process comprises a transparent support that is coated with an image-receiving hydrophilic colloid layer that receives an image pattern of fusible toner particles. The image pattern of toner particles is fused to the hydrophilic colloid layer by contacting the toned image-bearing layer with a heated fuser surface such as a fuser roll. The fuser surface is coated with a release liquid which inhibits offsetting of the toner particles onto the fuser surface. Transparencies prepared by this process exhibit good resistance to abrasion in toned areas while also displaying no release liquid in non-toned areas upon projection viewing. Furthermore, toned areas of such transparencies can be selectively removed by light rubbing with a wet cloth or tissue.
Abstract:
A lubricant application device includes an application roller to apply a lubricant to an image carrier, and a housing to accommodate the application roller and a lubricant unit which includes a solid lubricant. The housing extends in a longitudinal direction so that the lubricant unit is insertable into and removable from the housing in the longitudinal direction.
Abstract:
The present invention discloses signage articles having a layer of fused dry toner powder which is fused by employing a tacky pressure-sensitive adhesive and low compression. Suitable tacky pressure-sensitive adhesives include alkyl acrylate polymers or copolymers, alkyl vinyl ether polymers or copolymers, polyisobutylene, polybutadiene, and butadiene-styrene copolymers. Such signage articles further comprise a transparent cover layer disposed over the fused dry toner powder-bearing surface. Also disclosed are methods of forming signage articles, one method comprising the steps of applying dry toner powder to a first substrate surface, applying a composition including a tacky pressure-sensitive adhesive to a second substrate surface, and laminating the two substrates to admix the dry toner powder and the tacky pressure-sensitive adhesive. Either the first or second substrate may be the transparent cover layer of the resulting signage article.
Abstract:
A color copy of high-definition and high quality can be easily and stably obtained without any color misregistration, and also, a color image with stable preservability can be formed. On the surface of an electrophotographic photosensitive element, a compound (S) containing fluorine atoms and/or silicon atoms is provided in order to form a peelable transfer layer on the surface of the photosensitive element. A toner image of one or more colors is formed on the transfer layer by an electrophotographic process. Then the toner image is transferred to a transfer material together with the transfer layer.