Abstract:
A method for forming a thermal transfer printing sheet, including (a) feeding a release sheet having a release surface; (b) transferring an image, which is to be thermally transferred and printed on a transfer medium, onto the release surface of the release sheet; (c) forming a thermoplastic resin pattern, which corresponds to the image as a transfer base material and which is to be colorless and transparent by heat and pressure, and transferring the thermoplastic resin pattern onto the release surface of the release sheet; and (d) fixing the image and the thermoplastic resin pattern onto the release surface of the release sheet in a film shape, through heat and pressure.
Abstract:
A peeling sheet supply unit is formed along an endless belt and is configured to supply a peeling sheet having a peeling surface on the endless belt. A first resin sheet transfer device is provided at a downstream side of the peeling sheet supply unit, and is configured to form a resin sheet by transferring a thermoplastic toner to a first region of the peeling sheet. A second resin sheet transfer device is provided at a downstream side of the first resin sheet transfer device and is configured to form a resin sheet by transferring a thermoplastic toner to a second region of the peeling sheet, the second region having a region different from a region overlapped with the first region.
Abstract:
A toner for a thermal transfer printing sheet is advantageous in terms of a fixing property to a release sheet, durability against deformation upon cooling, and a property of holding an image-forming toner, in addition to grindability and chargeability of the toner. The toner for a thermal transfer printing sheet is characterized by comprising a negative-charged crystalline polyester resin, wherein the toner has an average particle size D50 (volume) of 20 to 50 μm.