摘要:
A yellow ink composition, a magenta ink composition and cyan ink composition and a solvent system which are suitable for a color ink jet printing method are disclosed. These ink compositions can realize ideal color tones without limitation of properties of paper. Moreover, these ink compositions are excellent in intermittent jetting stability. The color ink jet printing method is also disclosed. In this method, ink compositions are overprinted to mix colors. Colors obtained by the color mixing have an ideal color tone.
摘要:
A magenta ink composition comprising C.I. Direct Red 227 in an amount of 0.3 to 3.5% by weight, a water-soluble high boiling low volatility organic solvent and water is disclosed. A set comprising the magenta ink composition, a yellow ink composition comprising a 1:3 to 3:1 by weight mixture of C.I. Direct Yellow 86 and C.I. Direct Yellow 132 in an amount of 0.3 to 3.0% by weight and a cyan ink composition comprising at least one of C.I. Direct Blue 86 and C.I. Direct Blue 199 in an amount of 1.0 to 4.0% by weight is also disclosed. An ink jet recording method using the foregoing ink set is further disclosed. The ink composition provides an excellent color reproducibility range and causes no deterioration of printed matter.
摘要:
An ink composition for ink jet recording comprising a dye, 1 to 10% by weight of glycerin, 1 to 5% by weight of a monohydric alcohol having 4 or less carbon atoms, 0.5 to 10% by weight of 1,3-dimethyl-2-imidazolidinone and 75 to 95% by weight of water. The ink composition of the present invention can offer a good balance of properties required of the ink jet recording ink, especially quality of the print, dryability of the print, water-resistance of the print, storage stability and a property that does not attack members constituting a recording head and an ink passage.
摘要:
An ink composition for ink jet recording is provided which can satisfy property requirements of quality of print, drying property of print, clogging resistance, water resistance, storage stability, and nonattacking on members constituting an ink passage, such as a printing head. The ink composition for ink jet recording comprises a dye represented by the following formula (I), glycerin, pyrrolidone, a monohydric lower alcohol, a tri(hydroxyalkyl)amine, and water: ##STR1## wherein R.sup.1 represents phenyl or naphthyl substituted by a group selected from hydroxyl, --NH.sub.2, --SO.sub.3 M and --COOM, R.sup.2 represents carboxyalkyl, alkoxyalkyl, phenyl, or alkanoyl, R.sup.3, R.sup.4, and R.sup.5 represent hydrogen or --SO.sub.3 M.
摘要:
The entire part of a rear surface 2 of a nozzle plate 1 excluding peripheral portions 6 of nozzle holes 4 is coated with a resist tape, and this nozzle plate 1 is immersed in an electrolytic solution in which ions of a metal and particles of a water-repellent resin are dispersed to provide a plating thereon, and the plated nozzle plate 1 in the electrolytic solution is then heated to a temperature that is higher than a melting point of the water-repellent resin, whereby an entire portion extending from a front surface 3 of the nozzle plate 1 and the nozzle holes 4 contiguous to the front surface to the rear surface 2 is provided with a eutectoid plating layer 10 to suppress deviation of the passage of ink droplets due to wetting by an ink or the like.
摘要:
The entire part of a rear surface 2 of a nozzle plate 1 excluding peripheral portions 6 of nozzle holes 4 is coated with a resist tape, and this nozzle plate 1 is immersed in an electrolytic solution in which ions of a metal and particles of a water-repellent resin are dispersed to provide a plating thereon, and the plated nozzle plate 1 in the electrolytic solution is then heated to a temperature that is higher than a melting point of the water-repellent resin, whereby an entire portion extending from a front surface 3 of the nozzle plate 1 and the nozzle holes 4 contiguous to the front surface to the rear surface 2 is provided with a eutectoid plating layer 8 to suppress deviation of the passage of ink droplets due to wetting by an ink or the like.
摘要:
The entire part of a rear surface 2 of a nozzle plate 1 excluding peripheral portions 6 of nozzle holes 4 is coated with a resist tape, and this nozzle plate 1 is immersed in an electrolytic solution in which ions of a metal and particles of a water-repellent resin are dispersed to provide a plating thereon, and the plated nozzle plate 1 in the electrolytic solution is then heated to a temperature that is higher than a melting point of the water-repellent resin, whereby an entire portion extending from a front surface 3 of the nozzle plate 1 and the nozzle holes 4 contiguous to the front surface to the rear surface 2 is provided with a eutectoid plating layer 8 to suppress deviation of the passage of ink droplets due to wetting by an ink or the like.
摘要:
An ink composition is provided which can realize good images on plain paper, and, especially when used in an ink jet recording method, can have excellent ejection stability, storage stability, color development, and fixation and is much less likely to cause color bleeding and uneven printing and thus can realize good image quality. The ink composition comprises at least a pigment, a compound represented by formula (I), water, and a water-soluble organic solvent wherein R1 to R7 each independently represent an alkyl group; j and k are an integer of 1 or more; EO represents an ethyleneoxy group; PO represents a propyleneoxy group; and m+n is an integer of 1 or more.
摘要:
An ink composition is provided which can realize good images on plain paper, and, especially when used in an ink jet recording method, can have excellent ejection stability, storage stability, color development, and fixation and is much less likely to cause color bleeding and uneven printing and thus can realize good image quality. The ink composition comprises at least a pigment, a compound represented by formula (I), water, and a water-soluble organic solvent wherein R1 to R7 each independently represent an alkyl group; j and k are an integer of 1 or more; EO represents an ethyleneoxy group; PO represents a propyleneoxy group; and m+n is an integer of 1 or more.
摘要:
The entire part of a rear surface 2 of a nozzle plate 1 excluding peripheral portions 6 of nozzle holes 4 is coated with a resist tape, and this nozzle plate 1 is immersed in an electrolytic solution in which ions of a metal and particles of a water-repellent resin are dispersed to provide a plating thereon, and the plated nozzle plate 1 in the electrolytic solution is then heated to a temperature that is higher than a melting point of the water-repellent resin, whereby an entire portion extending from a front surface 3 of the nozzle plate 1 and the nozzle holes 4 contiguous to the front surface to the rear surface 2 is provided with a eutectoid plating layer 8 to suppress deviation of the passage of ink droplets due to wetting by an ink or the like.