摘要:
The production of photocatalytic color switching of redox imaging nanomaterials for rewritable media is disclosed. The new color switching system is based on photocatalytic redox reaction enabling reversible and considerably fast color switching in response to light irradiation. In accordance with an exemplary embodiment, the color switching system can include a photocatalyst and an imaging media. With the assistance of photocatalyst, UV light irradiation can rapidly reduce the redox imaging nanomaterials accompany with obvious color changing, while the resulting reduced system can be switched back to original color state through visible light irradiation or heating in air condition. The excellent performance of the new color switching system promises their potential use as an attractive rewritable media to meet increasing needs for sustainability and environmental protection.
摘要:
A method of fixing a developed photographic silver halide material comprising at least two silver halide layers sensitised to different regions of the spectrum, comprising placing the material in face-to-face contact with a fixer sheet in the presence of a processing solution and a silver halide solvent which forms a solubilised silver halide species from the undeveloped areas of the material, wherein the fixer sheet contains reducing means capable of forming metallic silver therein from the solubilised silver halide.
摘要:
A photographic assemblage is described for producing a monochromatic dye image comprising: a) a photosensitive element comprising a support hav ing thereof a layer of nondiffusible dye image-providing material, a stripping layer, an opaque layer and a silver halide emulsion layer; b) a transparent cover sheet; and c) opaque processing composition for application be tween the element and cover sheet. A dye mordant layer may also be present on the element or cover sheet. After exposure and processing, the layer of nondiffusible dye image providing material on a support is stripped away to provide a monochromatic retained dye image without the need for bleaching and fixing.
摘要翻译:描述了用于产生单色染料图像的照相组合物,其包括:a)感光元件,其包含具有不透性染料影像提供材料的层的支持体,剥离层,不透明层和卤化银乳剂层; b )透明盖板; 和c)用于元件和覆盖片之间的不透明处理组合物。 染料媒染剂层也可以存在于元件或覆盖片上。 曝光和处理后,剥离在载体上的非扩散染料图像提供材料层以提供单色保留的染料图像,而不需要漂白和固定。
摘要:
The production of photocatalytic color switching of redox imaging nanomaterials for rewritable media is disclosed. The new color switching system is based on photocatalytic redox reaction enabling reversible and considerably fast color switching in response to light irradiation. In accordance with an exemplary embodiment, the color switching system can include a photocatalyst and an imaging media. With the assistance of photocatalyst, UV light irradiation can rapidly reduce the redox imaging nanomaterials accompany with obvious color changing, while the resulting reduced system can be switched back to original color state through visible light irradiation or heating in air condition. The excellent performance of the new color switching system promises their potential use as an attractive rewritable media to meet increasing needs for sustainability and environmental protection.