Abstract:
Incorporating a crown ether-alkali metal complex cation of an enolate anion of an aldehyde having at least one electron withdrawing group in the alpha (a) position, provides thermally developable materials with imaging properties that have little change with changes in humidity. Both photothermographic and thermographic materials are provided, and particularly photothermographic materials having lower silver coverage.
Abstract:
A phosphor screen comprises an inorganic phosphor capable of absorbing X-rays and emitting electromagnetic radiation having a wavelength greater than 300 nm. The phosphor is disposed on a support that has a reflective substrate (11) comprising a continuous polyester first phase (12) and a second phase dispersed within the continuous polyester first phase. The second phase contains microvoids (14) that in turn contain barium sulfate particles (16). This support provides improved reflectivity particularly at shorter wavelengths.
Abstract:
A phosphor screen comprises an inorganic phosphor capable of absorbing X-rays and emitting electromagnetic radiation having a wavelength greater than 300 nm. The phosphor is disposed on a support that has a reflective substrate comprising a continuous polyester first phase and a second phase dispersed within the continuous polyester first phase. The second phase contains microvoids that in turn contain barium sulfate particles. This support provides improved reflectivity particularly at shorter wavelengths.
Abstract:
A black and white photothermographic material is imaged and heat developed to provide an image that has an image tone that is characterized such that the value for b* at an optical density of 1.0 is greater than the value for b* at Dmin. This material is useful for recording medical images used for diagnosis, particularly those images which have been captured through computed radiography, digital radiography, or by digitally scanning a conventional wet-processed radiographic film.
Abstract:
This invention relates to a method of processing color photographic film that has been imagewise exposed in a camera, said film having at least three light-sensitive units which have their individual sensitivities in different wavelength regions, each of the units comprising at least one light-sensitive silver-halide emulsion, binder, and dye-providing coupler, which method in order comprises (a) thermally developing the film step without any externally applied developing agent, comprising heating said film to a temperature greater than 80 DEG C in an essentially dry process, such that an internally located blocked developing agent in reactive association with each of said three light-sensitive units becomes unblocked to form a developing agent, whereby the unblocked developing agent forms dyes by reacting with the dye-providing couplers to form a color image; (b) scanning the color image in the film without desilvering; (c) desilvering said film in one or more desilvering solutions to remove at least silver halide, thereby forming an improved color image suitable for scanning or optical printing, and (d) either optically printing or scanning the color image in the film following desilvering. In one embodiment of the invention, the film is scanned a first time in step (b) to obtain a relatively low quality scan and then scanned a second time after step (c) to obtain a relatively high quality scan that is used for making the positive image print.
Abstract:
A process is disclosed for recording information by means of a recording radiation on photo-sensitive photographic material (7) that can be thermally developed. The material (7) is exposed on an element (3), preferably a drum, generating a latent image. The material (7) is then thermally developed by the same element (3), generating a visible image from the latent one.
Abstract:
Incorporating a combination of a trisphenol reducing agent (developer) and a substituted olefinic co-developer having a phosphonium cation in photothermographic materials improves image tone in resulting images.
Abstract:
Incorporating a sulfonyldiphenol compound into photothermographic materials improves Raw Stock Keeping and post-processing "hot-dark" print stability especially under harsh environmental conditions such as high temperature.
Abstract:
1,3 Diaryl-substituted urea compounds have been found to function as post processing stabilizers in photothermographic materials. These compounds can be presented by the following Structure (I): wherein R 1 and R 2 are the same or different substituted or unsubstituted aryl group.
Abstract:
Thermally developable photothermographic materials comprise a backside layer that includes a backside stabilizer to reduce fog formation in high humidity conditions, thereby providing improved shelf stability. Useful backside stabilizers are nitrogen-containing aromatic heterocyclic compounds. These backside stabilizers can be provided particularly in non photosensitive compositions that include an antihalation composition.