Abstract:
A liquid jet printing head having a printing liquid injection port, and an element for generating energy for effecting the injection of the liquid via the injection port, characterized in that a surface formed in the injection port is provided with a layer of a water repellent material consisting of inorganic particles dispersed in a desired manner in a water repellent resin. A liquid jet printing apparatus using this printing head. When this printing head is used, a liquid jet printing head capable of injecting ink stably at all times and producing prints of a high quality can be provided.
Abstract:
A naphthalenedisazoic dye represented by general formula (I); (I) wherein Q represents or a naphthalene group substituted by -SO3M; R represents a methyl group, a methoxy group, an ethoxy group; X represents a hydrogen atom, a phenyl group substituted by -SO3M; 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 -SO3M, wherein X represents a hydrogen atom and m represents 1 when Q represents a naphthalene group substituted by -SO3M; 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.
Abstract:
An ink jet recording head comprises a discharge port through which the ink is discharged, a liquid chamber for temporarily reserving the ink to be supplied to said discharge port, a flow channel for connecting said discharge port to said liquid chamber, and a substrate having an element surface on which is disposed an energy generating element for generating the energy with which the ink is discharged through said discharge port, wherein said recording head is formed by fusing a structural member having a groove making up said flow channel corresponding to said energy generating element with said element surface, and a cavity portion making up said liquid chamber with said element surface onto said element surface.
Abstract:
An ink jet recording head comprises a discharge port (3a) through which the ink is discharged, a liquid chamber (3c) for temporarily reserving the ink to be supplied to said discharge port (3a), a flow channel (3b) for connecting said discharge port (3a) to said liquid chamber (3c), and a substrate (1) having an element surface on which is disposed an energy generating element (2) for generating the energy with which the ink is discharged through said discharge port (3a), wherein said recording head is formed by fusing a structural member having a groove making up said flow channel (3b) corresponding to said energy generating element (2) with said element surface, and a cavity portion making up said liquid chamber (3c) with said element surface onto said element surface.
Abstract:
An ink jet recording head comprises a discharge port (3a) through which the ink is discharged, a liquid chamber (3c) for temporarily reserving the ink to be supplied to said discharge port (3a), a flow channel (3b) for connecting said discharge port (3a) to said liquid chamber (3c), and a substrate (1) having an element surface on which is disposed an energy generating element (2) for generating the energy with which the ink is discharged through said discharge port (3a), wherein said recording head is formed by fusing a structural member having a groove making up said flow channel (3b) corresponding to said energy generating element (2) with said element surface, and a cavity portion making up said liquid chamber (3c) with said element surface onto said element surface.
Abstract:
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.
Abstract:
A recording liquid comprises C.I.Acid Red 8 as a recording agent for forming an image and a liquid medium comprising at least (a) a member selected from the group consisting of polyethylene glycol, polyethylene glycol mono methylether and a mixture thereof, (b) a member selected from the group consisting of diethylene glycol, sulfolane and a mixture thereof, (c) a member selected from the group consisting of N-methyl-2-pyrrolidone, 1,3-dimethyl-2-imidazolidinone and a mixture thereof, and (d) water.