摘要:
A phosphor panel with a protective coating divided in at least two layers: a layer A, being closest to said phosphor layer and a layer B farther away from said phosphor layer wherein the layer A has a lower water vapor permeability coefficient than the layer B. Layer A has a water vapor permeability coefficient, P, so that 0 ≤ P ≤ 1 × 10 - 11 cm 3 ( STP ) · cm cm 2 · s · P a .
摘要:
A phosphor panel with a protective coating divided in at least two layers, a layer A, being closest to said phosphor layer and a layer B farther away from said phosphor layer wherein the layer A is a layer of parylene.
摘要:
A binderless stimulable phosphor screen comprises a vapor deposited storage phosphor layer on a support and a protective layer wherein the vapor deposited phosphor is needle-shaped with voids between the needles, wherein the voids are partially filled with a polymeric compound.
摘要:
A binderless stimulable phosphor screen is provided, comprising a vapor deposited phosphor layer on a support, wherein between the support and the phosphor layer a ceramic layer is present, wherein said ceramic layer preferably comprises a mixture of pigments so that the optical density of the phosphor screen is higher for the stimulating wavelength than for the stimulated emission wavelength of the vapor deposited phosphor.
摘要:
A phosphor panel with a protective coating divided in at least two layers: a layer A, being closest to said phosphor layer and a layer B farther away from said phosphor layer wherein the layer A has a lower water vapour permeability coefficient than the layer B. Layer A has a water vapour permeability coefficient, P, so that 0 ≤ P ≤ 1 × 10 - 11 cm 3 ( STP ) · cm cm 2 · s · Pa .
摘要:
A single-side coated silver halide photographic film material has been disclosed, said film material comprising a support, at least one light-sensitive emulsion layer and a substantially light-insensitive protective hydrophilic colloid layer farther away from said support than said emulsion layer, wherein said emulsion layer contains a silver halide emulsion rich in silver bromide with cubic crystals having an average numerical diameter in the range from 0.4 up to 0.8 &mgr;m, wherein at least 95 mole % of bromide ions are present, and wherein said hydrophilic colloid layer or another substantially light-insensitive hydrophilic colloid layer essentially comprises a hydrazide represented by the general formula (I) having a silver halide adsorbing group or a masked silver halide adsorbing group; besides a method for forming a diagnostic image comprising the steps of contacting said photographic film material with an intensifying screen, forming a film/screen assembly, and exposing said assembly to X-ray radiation with an energy lower than or equal to 70 kVp, and processing said film material during a time of 90 seconds or less in a processing cycle following the steps of developing, fixing, rinsing and drying, and wherein the developing proceeds in a radiographic developer composition essentially comprising a hydroquinone and a phenidone (a 1-phenyl-3-pyrazolidine-1-one compound) as a developing agent and a heteroatomic nitro-indazol.
摘要:
A single pass printer, having a printing width (PW) is provided or printing a toner image on a substrate, the substrate having a width (WS) and a length (LS), wherein, i) a number n, equal to or larger than 2, of printing engines, each containing a toner transferring element with a longitudinal axis (width (WPE)) smaller than the printing width (PW) are present, and at least two of the n printing engines, each containing a toner transferring element with a longitudinal axis in the direction of width (WPE), are located so that the longitudinal axis do not coincide. Preferably the printing engines are electro(stato)graphic engines, especially Direct Electrostatic Printing (DEP) engines or electrophotographic engines.
摘要:
A DEP device is provided that comprises a back electrode (105), a printhead structure (106), an array of printing apertures (107) in the printhead structure (106) through which a particle flow can be electrically modulated by a control electrode (106a), a toner delivery means (101), presenting a cloud (100) of dry toner particles in the vicinity of the apertures (107), characterized in that the toner cloud (100) is formed in the vicinity of the apertures (107) by means of a gas stream. The toner cloud is formed by detaching toner particles from a charged toner conveyer by the gas stream, or by forming a fluidized bed of toner particles.
摘要:
There is provided a device for direct electrostatic printing comprising a back electrode (105), a printhead structure (106), an array of printing apertures (107) in said printhead structure (106) through which a particle flow can be electrically modulated by a control electrode (106a), an image receiving substrate (109) travelling between said back electrode (105) and said printhead structure (106) in the direction of arrow A and toner delivery means (101), comprising a charged toner conveyer (103), the reference surface of said charged toner conveyer being placed at a distance B (in mm) from the front of said printhead structure (106), and a magnetic brush to provide charged toner on to the CTC, wherein the linear surface speed of the magnetic brush LSM has a specified minimal ratio versus the travelling speed LSS of the image receiving substrate, such that LSM/LSS.gtoreq.0.5. In a preferred embodiment the surface speed of the CTC LSC has also a specified minimal ratio versus the travelling speed LSS of the image receiving substrate, such that LSC/LSS.gtoreq.0.5. In a further preferred embodiment the surface speed of the magnetic brush LSM has a also a specified minimal ratio versus the linear surface speed LSC of the CTC, such that LSM/LSC.gtoreq.0.5. More over the radius of the CTC is chosen as a function of the extension of the array of printing apertures present in the printhead structure.
摘要:
A binderless stimulable phosphor screen comprising on a support a vapor deposited storage phosphor layer, wherein the phosphors are preferably needle shaped, and, coated thereupon and farther from the support than from the phosphor layer, a protective layer wherein the protective layer is a radiation cured polymeric layer including at least 1% mol/mol of fluoro-containing moieties.