Abstract:
An image forming medium includes a substrate and an imaging layer coated on or impregnated into said substrate, where the imaging layer includes a photochromic material dispersed in an ionomer, optionally with an additional polymeric binder, and where the photochromic material exhibits a reversible transition between a colorless state and a colored state in response to heat and optional light.
Abstract:
An image forming method including (a) providing a reimageable medium comprised of a substrate and a photochromic material, wherein the medium is capable of exhibiting a color contrast and an absence of the color contrast; (b) exposing the medium to an imaging light corresponding to a predetermined image to result in an exposed region and a non-exposed region, wherein the color contrast is present between the exposed region and the non-exposed region to allow a temporary image corresponding to the predetermined image to be visible for a visible time; (c) subjecting the temporary image to an indoor ambient condition for an image erasing time to change the color contrast to the absence of the color contrast to erase the temporary image without using an image erasure device; and (d) optionally repeating procedures (b) and (c) a number of times to result in the medium undergoing a number of additional cycles of temporary image formation and temporary image erasure, wherein the reimageable medium is prepared by a solvent-less process comprising i) heating and melting a photochromic material and a polymer to form a coating composition, and ii) coating the coating composition onto at least one side of a transient document substrate.
Abstract:
A writing kit including a plastic sheet, a binding and a case with a closing element to hold the plastic sheet in the case. The case has at least one hole at a center portion of the case and the sheet has at least one hole in the sheet. A binding comprising a flexible cord is laced through the hole in the sheet and the case and a clasp slidingly engages the cord.
Abstract:
An image removing method including bringing an outermost layer of a removing member into contact with an image fixed on an image support without applying a liquid to the image while heating the image and the outermost layer; and separating the removing member from the image support to remove the image from the image support, wherein the removing member includes a substrate and the outermost layer which is located overlying the substrate and which includes a thermoplastic resin, and wherein the image includes a removing agent which can decrease adhesion force of the image to the image support when heated.
Abstract:
An image forming material for forming an image on an image recording material with an image binding force being established between the image and the image recording material, the image forming material containing an image forming substance, and a binding force reducing substance which reduces the image binding force when the image is heated. A method of removing an image formed on an image recording material with a binding force being established between the image and the recording material by contacting a stripping member with the image with heating under pressure. A binding force reducing substance may be contained in the surface of the stripping member or in the image recording material.
Abstract:
An image removing method including bringing an outermost layer of a removing member into contact with an image fixed on an image support without applying a liquid to the image while heating the image and the outermost layer; and separating the removing member from the image support to remove the image from the image support, wherein the removing member includes a substrate and the outermost layer which is located overlying the substrate and which includes a thermoplastic resin, and wherein the image includes a removing agent which can decrease adhesion force of the image to the image support when heated.
Abstract:
An image stripping apparatus includes: a stripping roller which strips an image forming material from an image recording medium by contacting the image forming material on the image recording medium; a cleaning roller for removing, from the stripping roller, the image forming material which has been transferred to the stripping roller; and a cleaning blade stripping the image forming material from the cleaning roller. The stripping roller has a surface layer made of a material having affinity and releasability with respect to the image forming material and the image recording medium. Thus, the stripping roller exhibits peelability required for stripping of the image forming material from the image recording medium and releasability required for removal of a transferred image forming material from the stripping roller.
Abstract:
In order to reuse print sheets, a region on a printed sheet where old information is printed is detected and a region corresponding to the region where the old information is printed is identified as an erasing region. A pattern corresponding to the erasing region is printed on the erasing region with erasing ink or toner, which has a different color from a color of printing ink or toner, whereby the printed old information is erased. Then, new information is printed on the print sheet, from which the old information has been erased, by use of the printing ink or toner.
Abstract:
The present invention relates to a recyclable recording medium comprising; a base member, a surface layer comprising a water-swelling resin, and having a thickness of 3 to 30 &mgr;m; a saturated swelling amount in the direction of thickness is 4 to 25 &mgr;m when the recyclable recording medium is immersed in an aqueous medium.
Abstract:
The present invention related to a recyclable image-recording medium comprising a base layer, an intermediate layer and a water-swelling surface layer; a manufacturing method of the recyclable image-recording medium; and a printed material-removing method that uses such an image-recording medium.