Abstract: The present invention aims to provide an process for image formation using an electrophotographic image-receiving sheet having excellent anti-offset properties, adhesion resistance, paper transport properties and gloss, and being resistant to cracks, and able to form a high-definition image. For this purpose, there is provided an electrophotographic image-receiving sheet which includes a toner image-receiving layer containing at least a thermoplastic resin and natural wax having an light transmittance of 78% or less, on a support having an light transmittance of 30% or less, and an process for image formation using this electrophotographic image-receiving sheet.

Abstract: The present invention aims to provide an electrophotographic image-receiving sheet which gives a good, high-gloss image and has a toner image-receiving layer with improved brittleness. The electrophotographic image-receiving sheet includes a support, a toner image-receiving layer which contains a thermoplastic resin and is disposed on at least one surface of the support, and an intermediate layer which contains a thermoplastic resin and is disposed between the support and the toner image-receiving layer. In the electrophotographic image-receiving sheet, a glass transition temperature of the thermoplastic resin in the toner image-receiving layer is 35° C. or more and is higher than a glass transition temperature of the thermoplastic resin in the intermediate layer, and the toner image-receiving layer contains less than 40% by mass of a pigment, based on an amount of the thermoplastic resin in mass in the toner image-receiving layer.

Abstract: The present invention aims to provide a recording material support having superior excellent surface smoothness and water resistance compared to the related art, to a process for efficiently manufacturing this recording material support, to a recording material which can form an image having excellent quality and gloss using this recording material support, and to process for image formation using this recording material. For this purpose, the recording material support comprising at least raw paper satisfies at least one condition selected from the Cobb size (30 seconds) of the surface on the side provided with the image-forming layer of the support, Oken type smoothness, Stökigt sizing degree, central square average roughness (SRa) and variation amount (&Dgr;SRa) of SRa.

Abstract: An electrophotographic image-receiving sheet which includes a support, a toner-receiving layer which contains thermoplastic resin. The fixing belt electrophotographic sheet has an optimized separation force at a surface of the electrophotographic image-receiving sheet from the toner-receiving layer. Having a highly improved long-run properties, the fixing belt electrophotographic sheet realizes a stable paper feed without offset, and provides a good quality image with rich photographic features.

Abstract: The present invention discloses an image receiving material for electronic photograph comprising a support made of base paper having a thermoplastic resin layer on each side of the support; a toner receiving layer, provided on one side of said support, which contains a thermoplastic resin; and one or more back layers provided on the other side of said support, wherein thermoplastic resin, porous particles and a cationic material are contained in any one of said back layers. Such image receiving material for electronic photograph of the present invention has a right side which is excellent in glossiness and thus allows electronic photographic image full of photographic touch to be formed thereon, and a back side having desirable printability for both of electronic photographic image and ink-jet printed image.

Abstract: An electrophotographic image-receiving film is disclosed which comprises an transparent support having on one side thereof an image-receiving layer, said support having on the other side thereof a back layer comprising an electro-conductive undercoat layer and an antifriction layer having a reduced coefficient of friction. The electrophotographic image-receiving film has excellent running properties and excellent antiblocking properties.

Abstract: The present invention provides an electrophotographic transfer film which can provide improvements in the color development at the half tone (dot) area of a projected image and the anti-offset properties. A novel electrophotographic transfer film is disclosed which comprises an image receiving layer provided on at least one side of a transparent support is provided, wherein the image receiving layer comprises a polyester including (i) a repeating unit of a dibasic acid component containing at least one dicarboxylic acid unit selected from the group consisting of a telephthalic acid unit and a 2,6-naphthalenedicarboxylic acid unit, and a sulfobenzenedicarboxylic acid unit; and (ii) a repeating unit of a divalent alcohol component containing an ethylene glycol unit, a triethylene glycol unit and a bisphenol A-ethylene oxide adduct unit. A color image formation process is also provided which comprises forming a color image on the electrophotographic transfer film.

Abstract: A recording sheet for ink-jet recording, thermal transfer recording or electrographic recording comprises a transparent support and a transparent colorant-receptive layer, in which the colorant-receptive layer has a void volume of 50-80%, in which the network structure is formed of silica fine particles having a mean primary particle diameter of 10 nm or less and a water-soluble resin, and the weight ratio of silica fine particles/the water-soluble resin is in the range of 1.5/1 to 10/1.

Abstract: An electrophotographic transfer film comprising a transparent substrate having formed on at least one side thereof an image-receiving layer is disclosed, in which the image-receiving layer comprises a binder resin and at least one resistivity control agent selected from (a) conductive metal oxide fine particles having an average particle size of not greater than 0.1 .mu.m and (b) an nonionic surface active agent, and the image-receiving layer has a surface resistivity of from 1.times.10.sup.9 to 1.times.10.sup.13 .OMEGA. at 25.degree. C. and 65% RH. The electrophotographic transfer film is less liable to variation of surface resistivity with environmental changes, particularly a great change in humidity, and exhibits excellent transfer properties to provide a toner image of high density in a stable manner.

Abstract: An electrophotographic film for receiving toner image comprising a transparent substrate having formed on at least one side thereof an image-receiving layer containing a matting agent and a binder, wherein the matting agent comprises at least two kinds of matting agents A and B which are different in shape, matting agent A comprising nearly spherical fine particles, and matting agent B comprising flat fine particles, with the average short diameter and average long diameter of each of matting agents A and B satisfying all of relationships (1), (2) and (3):1.ltoreq.L.sup.1 /W.sup.1 .ltoreq.1.5 (1)L.sup.2 /W.sup.2 >2 (2)W.sup.1 /W.sup.2 >1 (3)wherein L.sup.1 and W.sup.1 represent the long diameter and the short diameter of matting agent A, respectively; and L.sup.2 and W.sup.2 represent the long diameter and the short diameter of matting agent B, respectively, matting agent B having a coefficient of static friction of not more than 0.4, and the image-receiving layer has a surface resistivity of from 1.

Abstract: A concrete reinforcing steel fiber has an alternate arrangement of basic portions corresponding to the body of the steel fiber material, and section-shaped portions formed by pressing the steel fiber material between a grooved forming roller and a toothed forming roller. Each section-shaped portion has a flat upper surface, lateral projections and a round bottom. The pressure bearing area b of the section-shaped portion, namely, the sum of the cross-sectional area of the lateral projections and the area of the end surface of the basic portion contiguous with the section-shaped portion, is in the range of 0.2A to 0.5A (A=cross-sectional area of the basic portion). The total pressure bearing area B of the steel fiber is in the range of 3A and 8A, and also in the range of 0.02T and 0.08T (T=tensile strength of the steel fiber).

Abstract: The present invention relates to a valve moving system of an over head valve engine, minimized the overall height of cylinder head and head cover by inclining valve stems and footing bolts of rocker arm supports, and by disposing the part of upper wall of the cylinder head, where said footing bolts are screwed in, lower than bosses for supporting valve stems, which are also formed on said upper wall of said cylinder head, so as to match said engine with any machines which have a side valve engine for general use.

Abstract: An optical information recording medium is described, comprising two disc substrates, which are adhered directly or through a convex portion formed on at least one of the substrates or a spacer provided between the substrates by an adhesive layer, and a recording layer which is capable of recording and/or reading information by laser beam and which is provided on a surface of at least one of the substrates facing the other substrate, wherein the adhesive layer satisfies formulae (1), (2) and (3)d/G.gtoreq.0.05 (1)5.times.10.sup.2 .gtoreq.G.gtoreq.5 (2)200.gtoreq.d.gtoreq.20 (3)wherein G is the coefficient of shearing elasticity (kg/cm.sup.2) of the adhesive layer at 23.degree. C., and d is the thickness (.mu.m) of the adhesive layer.

Abstract: The present invention relates to a cooling means for the squish part of an air cooling over head valve engine, comprising a fan disposed in front of said engine for generating cooling wind. A fan case is provided which covers the front side of the fan and engine. A wind tunnel is formed through the cylinder head of said engine near the squish area and is aligned so as to pass a cooling wind, generated by the fan, above the squish area. The engine is provided with an intake and exhaust ports opening at the front and rear surfaces of said cylinder head, respectively. In the lateral side of the wind tunnel, an intake or exhaust pipe is disposed laterally over the front space of the tunnel, so as to guide cooling wind blown up from the fan to the tunnel along its lower peripheral surface thereof.

Abstract: A splash lubricating system for an engine having a crank case, a crank room formed in said crank case, an oil reserving room formed in lower part of said crank case for lubricating oil, and an oil splasher extending from a big end of the connecting rod downward so as to splash about lubricating oil from said reserving room to said crank room on its way from the front side to the back side along the lower part of its orbit, wherein the improvement involves a transverse partition covering over all of said oil reserving room, disposed in the upper space thereof, having an opening which allows said oil splasher to move therein, and three buffer plates covering front, right and left sides of said opening respectively for controlling oil level under them.

Abstract: In an information recording medium having an air-sandwich structure comprising two disc-shaped substrates opposed to each other at a given space by interposing therebetween a ring-shaped inner spacer and a ring-shaped outer spacer and a recording layer for writing and/or reading information with laser beam which is provided on the inner surface of at least one substrate, the improvement in which at least one spacer is an adhesive-retainable spacer comprising a ring portion of protecting circumferences of the substrates and a protruding ring portion of arranging the two substrates apart, the latter ring portion protruding from a side of the protective ring portion and comprising a front portion for defining the space between the substrates and a stem portion being thinner than the front portion for retaining an adhesive, whereby an excessive adhesive or a volatile material of the adhesive is discharged through a space between the substrate and the stem portion of the protruding ring portion.

Abstract: The present invention relates to an automatic decompression system for starting an engine with a decompression pin penetrating the cam shaft to thrust a tappet of the valve moving system by biasing force of a spring for decompression and retreated from the tappet by centrifugal force of a fly weight and itself, wherein, said fly weight is inserted in the space between the inner periphery of the rim of the cam gear, which rim is extruded toward the cam, and the outer periphery of the flange faced against the outer periphery of the rim, which flange functions to decide the axial position of the cam gear.

Abstract: A recording medium having an air-sandwich structure comprising two disc-shaped substrates opposed to each other at a given distance by interposing therebetween a ring-shaped inner spacer and a ring-shaped outer spacer and a recording layer for writing and/or reading information with laser beam which is provided on the inner surface of at least one substrate,characterized in that the distance between said two substrates satisfies the following expression (I): ##EQU1## wherein h is the distance in mm between two substrates, E.sub.1 and E.sub.2 are each a Young's modulus (in kg/mm.sup.2) of each substrate, l is the distance (in mm) between the inner spacer and the outer spacer, and t.sub.1 and t.sub.2 are each the thickness (in mm) of each substrate.

Abstract: A process for producing a thermoplastic polymer sheet, especially that of polyethylene terephthalate, which comprises extruding a molten thermoplastic polymer through an extrusion die in the form of a polymer sheet onto the surface of a moving cooling body and supplying a liquid, such as water or an alcohol, in an amount sufficient to adhere the polymer sheet to the surface of the cooling body, as a vapor or fine liquid droplets to the surface of the extruded polymer sheet at a position between the extrusion die and the surface of the cooling body. This ensures good adhesion between the molten polymer in sheet form and the surface of the cooling body, and provides polymer sheets having superior surface properties at higher speeds than in the prior art.

Abstract: A V-shaped, air-cooled engine is provided with a cover on the front thereof, which houses a cooling fan connected to the engine's crankshaft. The interior of the cover is fitted with dividers to separate the air flow and direct it to the opposite sides of the engine, and to form a compartment for housing components of a non-contact ignition system. The non-contact ignition system is operated by the cooling fan, and is cooled by the flow of air through the cover. Components of the ignition system are permanently connected to each other, without the usual separable connectors.