摘要:
A photosensitive aluminum plate of improved storagability in which an anodically oxidized aluminum is used as a support and a silver halide is contained as a photosensitive material in the micropores of the oxide film formed on the support by anodic oxidation.
摘要:
wherein R1, R2 and R3 each represents a hydrogen atom or an alkyl group substituted by a hydroxyl group, wherein R1, R2 and R3 are not simultaneously a hydrogen atom, is disclosed.
A silver halide photographic light-sensitive material comprising a silver halide photographic emulsion containing a compound represented by the following general formula (I);
摘要:
A stable processing solution for improving the stability of color images of color photographic materials is disclosed. The processing solution contains pyrogallol-1,3-dimethyl ether.
摘要:
Permanent photochromic images are obtained by selectively exposing a photochromic compound and an organic peroxide in a resin binder to ultraviolet radiation and thereafter heating the element whereby a reaction occurs in the exposed areas to provide the permenent images.
摘要:
An image-receiving element useful for silver salt diffusion transfer photographic process, which comprises a support having coated thereon a diffusion transferred image-receiving layer primarily comprising colloidal silicon dioxide containing silver precipitating nuclei dispersed therein, said image-receiving layer being overcoated thereon with a layer containing condensation products derived from formaldehyde and barbituric acid or an alkylated barbituric acid and represented by the following formula:
WHEREIN R1 and R2 may be the same or different and are each -H, -CH3 or -C2H5, and n is a number from 1 to 10.
摘要:
A device for continuously mixing or reacting liquids has a cylinder with a plurality of spaced radial liquid inlets intermediate its ends for sequentially adding liquid and an outlet. An agitator having two or more shafts disposed parallel with the axis of said cylinder also has a plurality of blades fixed on the respective shafts for extremely restricting the mixture and agitation of the liquids on the axial direction but mainly drives the added liquids radially.
摘要:
A film magazine carries an endless film which is wrapped about a hub portion on a flange extending at a right angle to the axis of the hub, the hub having a first cylindrical portion in contact with the inntermost convolution of the film near the flange, and having a tapered hub portion remote from the flange. A rib within the cover of the film magazine which maintains the film convolutions on the hub in proper position is recessed at the point where it overlies the innermost film convolution and a portion of the tapered surface portion, the rib being positioned circumferentially at the point where the innermost convolution leaves the hub, the depth of the recess within the rib and the demarcation between the tapered portion of the hub and the cylindrical portion of the hub is approximately equal to the thickness of the film to insure edge contact only between the innermost convolution and the point of removal from the hub and the tapered surface portion of the hub and the rib respectively.
摘要:
A recording sheet comprising a support having coated thereon a layer of a color developer which is capable of forming a distinct color when contacted with a color former. The color developer contains a combination of (i) a polymer of an aromatic carboxylic acid having at least one hydroxyl group with an aldehyde or acetylene and (ii) a metallic compound.
摘要:
An apparatus for developing an electrostatic latent image which comprises a plurality of developing units in series for conveying electrophotographic material smoothly therethrough, each unit comprising (a) a downwardly inclined endless belt provided with protruding ridges along the sides of a surface thereof for conveying electrophotographic sheet material and further provided with an electroconductive layer and (b) a driving mechanism for the endless belt, a plurality of liquid developer feeding nozzles and side plates respectively associated with the developing units disposed at points lower than the path of the electrophotographic sheet material and further disposed, for each developing unit, at the proximity of the uppermost portion of the endless belt, and means contacting the endless belt under the feeding nozzles for cleaning the endless belt thereby holding the liquid developer in a concave part formed by the endless belt, side plates, developer feeding nozzles and the cleaning means, the endless belt feeding the liquid developer thus held in the concave part to the electrophotographic sheet material.
摘要:
A rotatable cutter member is mounted on a movable carrier such that its center of gravity is located on the shaft connected to the movable carrier. Thus, the cutter member can freely position itself relative to a moving web that is to be cut without introducing unwanted tension or an irregular cut line. A guide track supports the movement of the carrier while the cutter member forms a V-notch cutting edge.