摘要:
A recording medium comprising a non-porous substrate and a coating layer formed thereon, said coating layer comprising a carboxyl group-containing ionomer-type hydrophilic urethane resin and organic and/or inorganic fine particles.
摘要:
Disclosed is a recording liquid comprising a carbon black dispersed in an aqueous medium, which is characterized in that a toluene extract of the carbon black has an absorbance of 0.05 or less at .lambda.max within the range of from 330 nm to 340 nm or at 337.5 nm when the toluene extract does not have .lambda.max within the range of from 330 nm to 340 nm. The recording liquid can be used in ink-jet recording in high safety. During and after long storage of the recording liquid, the carbon black does not precipitate out. Using the recording liquid, reliable recording can be attained with good jettable durability of the liquid. Even when the recording liquid is recorded onto ordinary papers, high-quality images with good water-fastness and good light-fastness can be formed. The recording liquid is especially suitable for thermal ink-jet recording systems.
摘要:
A recording liquid comprising an aqueous medium and at least one dye selected from dyes, a free acid form of which is represented by formula (I), (II), (III) or (VI), the symbols in the formulae being defined in the specification: ##STR1##
摘要:
A recording liquid comprising from 0.2 to 12% by weight, based on the total weight of the recording liquid, of a water-soluble dyestuff, from 0.5 to 25% by weight, based on the total weight of the recording liquid, of at least one member selected from the group consisting of compounds of the following formulas I, II and III, and an aqueous medium: ##STR1## wherein l is a number of from 4 to 20, ##STR2## wherein R is a lower alkyl group or a phenyl group, and each of m and n is a number of from 4 to 20, and ##STR3## wherein X is a halogen atom, and p is a number of from 4 to 20.
摘要:
A naphthalenedisazoic dye represented by general formula (I); ##STR1## wherein Q represents ##STR2## or a naphthalene group substituted by --SO.sub.3 M; R represents a methyl group, a methoxy group, an ethoxy group; X represents a hydrogen atom, a phenyl group substituted by --SO.sub.3 M; m represents 1 or 2; n represents 1 when X represents a hydrogen atom and n represents zero when X represents a phenyl group substituted by --SO.sub.3 M, wherein X represents a hydrogen atom and m represents 1 when Q represents a naphthalene group substituted by --SO.sub.3 M; and M represents an alkali metal atom, an ammonium, or H.A (wherein A represents an amine), and a recording liquid containing the dye. The recording liquid is suitable for use in an ink-jet recording system.
摘要:
A liquid composition comprising a water-soluble dye is provided. The composition contains iron and silicon at a concentration of 9 ppm or less. A method for recording with liquid droplets formed from the liquid composition is also provided. Further, a water soluble dye for the liquid composition is provided, the dye containing iron and silicon at a total concentration of 250 ppm or less.
摘要:
Several embodiments of improved braking arrangement for off the road, single rider, multiple wheeled vehicles. In each arrangement, a shaft drive is incorporated and a brake rotor is fixed for rotation with the shaft drive. A brake casing encircles the brake rotor and has at least one opening that is aligned with the rotor surface and in which a brake pad is supported by a cover that closes the opening and which is adapted to brake the rotor. In some embodiments, the brake pad is actuated mechanically and in others, it is actuated hydraulically. In some embodiments, the interior of the brake casing is vented to the air cleaner of the engine and in others, the casing is provided with pie-shaped cutouts for cooling.
摘要:
The glass film laminate comprises a laminate structure of three or more layers, which includes a layer formed of a glass film and a transparent resin layer. The both outermost layers of the glass film laminate are formed of the glass film. The glass film has a thickness of 300 μm or less, and the transparent resin layer has a thickness larger than that of the glass film.
摘要:
A recording liquid comprising an aqueous medium and at least one selected from the compounds whose free acid form is represented by the formula {1}: ##STR1## wherein, R.sup.1, R.sup.2 and R.sup.3 each independently represent a substituted or unsubstituted C.sub.1-9 alkyl group, a C.sub.1-9 alkoxy group, a halogen, hydrogen, a hydroxyl group, a substituted or unsubstituted carbamoyl group, a substituted or unsubstituted sulfamoyl group, a substituted or unsubstituted amino group, a nitro group, a sulfonic ester group, a C.sub.1-9 alkyl- or C.sub.6-15 aryl-sulfonyl group, a COOH group or a carboxylic ester group;m is a number of 0, 1 or 2; andR.sup.4, R.sup.5 and R.sup.6 each independently represent hydrogen, a C.sub.1-18 alkyl group, a C.sub.2-18 alkenyl group, an aryl group, an aralkyl group, an alicyclic group or a heterocyclic group, any of which groups except hydrogen may have a substituent.
摘要:
An image reading and recording apparatus such as an electronic blackboard includes a reading unit movable along a guide rail for reading information written on a board, a drive motor integral with the reading unit and operative to move the reading unit relative to the board, and a power transmission mechanism for transmitting a driving force of the drive motor to the reading unit so as to move the reading unit relatively to the board. The power transmission mechanism is composed of a pulley fixed to a drive shaft of the motor and a wire rope extending along the guide rail in a stretched condition and wound around the pulley by one turn. Upon rotation of the motor, the pulley rolls on and along the wire rope, thereby moving the reading unit relative to the board. Due to a large contact area provided between the pulley and the wire rope, the movement of the reading unit is highly reliable and hence the information on the board can be read with high accuracy. The apparatus also includes an image recording unit which is so constructed as to prevent accidental separation of a recording paper from a recording head, thereby ensuring a high quality printing of the information on the recording paper.