A photosensitive and pressure-sensitive recording material, which comprises (A) a first layer coated on a sheet and containing microcapsules including a first reaction component for a color developing reaction and a component capable of altering the mechanical breaking strength of the microcapsule in response to exposure to light, (B) a second layer coated on the same or different sheet and containing a second reaction component for said color developing reaction brought about upon contact there...

A photosensitive and pressure-sensitive recording sheet and a process for recording an image using such recording sheet, said recording sheet comprising microcapsules, which enclose a first component, held on one side surface of a sheet and a second component, which causes color change of the surface of sheet when it reacts with the first component that is held on said one side surface of the sheet, held on the opposing side surface of the sheet and, moreover, one other component, which causes a...

An image recording apparatus uses coloring photosensitive toner for a full-color copying which is in the form of a microcapsule having a shell, a photosensitive resin and a chromogenic material both encapsulated in the shell, and a developer material coated on the outer surface of the shell. To increase the monochromatic copying speed, the apparatus further uses a monochromatic toner. When a user's switch is depressed, a driver unit selects either one of the full-color and monochromatic color co...

An image forming apparatus for forming visible images on a recording medium according to source image information, comprises microcapsules, a stirring roller, a photosensitive drum, a microcapsules coating device, a corotron, an exposing device, a heater and a developing device. Each of the microcapsules includes a chromogenic material and a material having a heat-softening property wherein it is softened by heat and a photocuring property wherein it is cured by light. The stirring roller fricti...

To produce an image recording medium having a support member and a developer material deposited thereon, the support member is charged to a first polarity and powders of a mixture of the developer material and a thermally fusible material both charged to a second polarity opposite to the first polarity are applied to the surface of the support member. Then, the developer material thereon is fixed to the support member by thermally fusing the thermally fusible material with the use of a fixing un...

In a transfer-type image recording device utilizing a recording medium comprising a continuous-form recording sheet and a cut-form developing sheet, the former is arranged to be fed in a predetermined speed, coated with a plurality of photo and pressure sensitive microcapsules each containing a dye-precursor and a component to change the strength thereof when exposed to light. And the latter is designed to be coated with a developer material which is reactable with the dye-precursor. In the imag...

In an image recording method of the present invention, a photosensitive sheet having a transparent substrate coated on one surface with microcapsules encapsulating a photosensitive material, that undergoes a viscosity change upon irradiation by light, and a chromogenic material is superposed upon a photosensitive member and subjected to light exposure. As a result, a chemical latent image corresponding to an original image is formed on the photosensitive sheet and an electrostatic latent image c...

The improved photo-sensitive recording medium carrying the photo-curing microcapsules, capable of minimizing the variation of its "sensitivity" and therefore the image recording speed at the time when the optical image is exposed. A stable "sensitivity", which makes a duplicating operation stable in any environmental conditions, is obtained by fabricating the capsule walls of the photo-curing microcapsules with inorganic substances.

A developer sheet having a high light resistivity comprises a layer having an electrophilic developer coated thereon, and a layer having transparent or semitransparent particles containing an ultraviolet-ray absorbent and a process for producing the developer sheet.

To provide graphitic cast steel given with improved machining and mechanical properties, a large number of fine graphite nodules can be crystallized in the cast steel, and the occurrence of chain-like formation of graphite crystals can be avoided by limiting the Bi content in the cast steel to the range between 0.005% and 0.0150%. The composition essentially consists of 0.45 to 1.5 wt % carbon (C), 1.0 to 5.5 wt % silicon (Si), 0.008 to 0.25 wt % rare earth elements (REM), optionally, 0.002 to 0...