摘要:
It is an object of the present invention to provide an ink set which makes it possible to obtain recorded images that have a broad color reproduction range and a high saturation, as well as glossiness without conspicuous graininess caused by dot expression, and which in particular makes it possible to achieve an extreme suppression of graininess caused by dot expression in cases where the ink set is used on media that have a coating layer, and to obtain recorded images with extremely superior coloring characteristics in cases where the ink set is used on ordinary paper. The present invention provides an ink set comprising at least a yellow ink (Y), magenta ink (M), cyan ink (C) and red ink (R), wherein the L* values in the CIE-stipulated Lab display system of aqueous solutions of the respective inks diluted 1000 times by weight are in the following ranges: (Y): at least 89 but no more than 94, (M): at least 76 but no more than 93, (C): at least 74 and no more than 87, (R): at least 55 and no more than 74.
摘要:
A process for producing a pigment dispersion is disclosed. This process comprises the steps of: providing a mixture consisting essentially of a pigment, a dispersant, a polysiloxane surfactant and/or an alkanediol, a polyhydric alcohol, and water; and dispersing the ingredients of the mixture in one another. A process for producing an ink composition is also disclosed wherein the above pigment dispersion is mixed with a member selected from the group consisting of water, a surfactant, a wetting agent, a pH adjustor, and mixtures thereof. This ink composition can realize good image quality.
摘要:
Disclosed is a black ink set comprising a plurality of black ink compositions, wherein the plurality of black ink compositions each comprise carbon black, a magenta pigment, and a cyan pigment as colorants, and the plurality of black ink compositions are different from each other in content of carbon black, and the content of the magenta pigment and the content of the cyan pigment are such that all the plurality of black ink compositions have a chroma C* value of not more than 3. This ink set can realize black images possessing excellent gradation.
摘要:
The present invention is directed to a yellow ink which can realize images possessing excellent color reproduction and waterfastness. Images possessing very excellent color reproduction and lightfastness can be realized by using a yellow ink composition comprising C.I. Pigment Yellow 128 and C.I. Pigment Yellow 110 as a colorant, or by using a yellow ink set comprising a first yellow ink composition containing C.I. Pigment Yellow 128 and a second yellow ink composition containing C.I. Pigment Yellow 110.
摘要:
Disclosed is a black ink composition containing a carbon black and a pigment represented by the following general formula (1): wherein p represents an integer of from 0 to 3. Also disclosed is an ink set containing at least one kind of such a black ink composition as at least one of a black ink composition and a light black ink composition.
摘要:
An ink set is provided which can realize images having excellent color reproduction. A yellow ink composition comprising C.I. Pigment Yellow 128 as a colorant, a magenta ink composition comprising C.I. Pigment Red 122 as a colorant, a cyan ink composition comprising C.I. Pigment Blue 15:3 as a colorant, and a black ink composition comprising carbon black as a colorant can be used in combination to realize images having excellent color reproduction and fastness properties.
摘要:
A high-density yellow portion is printed using an ink composition containing C.I. Pigment Yellow 74, and a low-density yellow portion is printed using a second yellow ink composition containing at least one yellow pigment selected from the group consisting of C.I. Pigment Yellow 109, 110, 128, 150, and 154. When the yellow ink composition containing C.I. Pigment Yellow 74 is used in combination with the second yellow ink composition according to the density of the yellow portion as described above, the lightfastness and color development of yellow images can be significantly improved.
摘要:
An apparatus for continuously forming plate articles which can be installed in a low factory building, which can sufficiently press, heat and dry a mixture of materials, and which can manufacture surface-treated plate articles with high efficiency at a low cost. The mixture is introduced into an introducing chamber, and at the same time, decorative films are fed into the introducing chamber on both sides of the mixture. A semi-finished product made up of the mixture and decorative films are fed between a pair of horizontal hot plates to form it into a strip article. The strip article thus formed is cooled and cut into a plurality of plate articles provided with decorative layers on both sides.
摘要:
An ink composition of the invention is an ink composition to be ejected by an ink jet system and includes silver particles and water. When a composition A formed of components of the ink composition other than the water is held in an atmosphere at an ambient temperature of 23° C. and a relative humidity (RH) of 50%, the equilibrium moisture content of the component A is in a range of 2 to 7.8 percent by mass.
摘要:
A recording apparatus, a recording method, and an operation control program, which are superior in color stability (gray balance), are capable of achieving an image quality in which dots are inconspicuous, and are capable of providing images in which phenomenon such that color varies from light source to light source is restrained. The recording method for recording an image using a cyan ink, a magenta ink, a yellow ink, a white ink, and a black ink on a recorded medium, including: a first process for receiving the image data and forming the respective dot pattern data using the various types of inks; a second process for forming respective dots on the recorded medium according to respective dot pattern data obtained in the first process, wherein the first process includes forming the color of an achromatic area at least with a white dot and a black dot when the image data has the color of the achromatic area having a lightness not lower than a predetermined value and includes a color expressed by forming a cyan dot, a magenta dot, and a yellow dot simultaneously on the basis of subtractive mixture of color stimuli.