Radiographic intensifying screen and process for preparing the same
AssigneeKasei Optonix, Ltd.
InventorsAkio Umemoto, Yujiro Suzuki, Tutomu Watanabe, Michio Tanaka, Nobuaki Koike
Life of this patent
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Abstract
This invention relates to a radiographic intensifying screen excellent in sharpness and durability, which comprises a support, a fluorescent layer formed on the support, and a protective layer formed by coating a solution containing a protective layer-forming resin on the fluorescent layer, wherein a water repellent layer or a resin layer which may optionally contain a water repellent is provided between the fluorescent layer and the protective layer, or the fluorescent layer may optionally contain a water repellent, and also relates to a process for preparing the same.
Claims19
A radiographic intensifying screen which comprises a support, a fluorescent layer formed on the support, a water repellent layer provided on the fluorescent layer and a protective layer formed by coating a solution containing a protective layer-forming resin on the water repellent layer.
A radiographic intensifying screen which comprises a support, a fluorescent layer formed on the support, and a protective layer formed by coating a solution containing a protective layer-forming resin on the fluorescent layer, wherein the fluorescent layer contains a water repellent, and wherein the water repellent is distributed so that the proportion of the water repellent in the fluorescent layer near the interface to the protective layer is higher than the proportion of the water repellent in the fluorescent layer near the interface to the support.
A radiographic intensifying screen which comprises a support, a fluorescent layer formed on the support, a resin layer provided by coating a resin solution on the fluorescent layer, and a protective layer formed by coating a solution containing a protective layer-forming resin on the resin layer, and wherein the resin layer contains a water repellent.
A process for preparing a radiographic intensifying screen, which comprises coating a solution containing a water repellent on a fluorescent layer previously formed, drying, further coating a solution containing a protective layer-forming resin thereon, and drying.
A process for preparing a radiographic intensifying screen, which comprises coating a phosphor solution containing a water repellent on a support to form a fluorescent layer thereon, drying, further coating a solution containing a protective layer-forming resin thereon, and drying, wherein the water repellent is distributed so that the proportion of the water repellent in the fluorescent layer near the interface to the protective layer is higher than the proportion of the water repellent in the fluorescent layer near the interface to the support.
A process for preparing a radiographic intensifying screen, which comprises coating a resin solution containing a resin, a water repellent and an organic solvent on a fluorescent layer previously formed, drying to form a resin layer, further coating a solution containing a protective layer-forming resin thereon, and drying to form a protective layer.
Dependencies are inferred from the claim text.