摘要:
The invention provides an ink set, a process for forming a colored portion and an ink-jet recording apparatus which are used for obtaining higher-quality ink-jet recorded articles. The ink set includes an aqueous ink containing at least an ultrafinely particulate pigment as a coloring material and an aqueous liquid composition containing fine particles, dispersed therein and electrically charged at the surface in a polarity opposite to the ink.
摘要:
An image forming method that forms an image using an ink and a liquid composition by a process comprising the steps of; (A) imparting a black ink to an image forming area of a recording medium by ink-jet recording; the black ink comprising a water-soluble black dye and a black pigment as coloring matters, and a liquid medium in which the coloring matters are dissolved or dispersed; and (B) imparting a liquid composition different from the ink to the image forming area.
摘要:
An ink set for ink-jet recording that includes a plurality of inks containing coloring materials insoluble in water to form a high quality ink-jet recording image is provided. The water-based ink set for ink-jet recording includes a black ink and a color ink, wherein the black ink contains a carbon black as a coloring material having a volume average particle diameter determined by dynamic light scattering of not less than 50 nm, the color ink contains a pigment as a coloring material having a volume average particle diameter determined by dynamic light scattering of not more than 60 nm, and an accumulative 90% particle diameter of volume particle size distribution of not more than 100 nm, the volume average particle diameter of the carbon black of the black ink is larger than the volume average particle diameter of the pigment of the color ink, and the black ink has a surface tension higher than that of the color ink.
摘要:
An image forming method to apply an ink to a printing medium includes applying a liquid composition having a polarity different from a polarity of the ink to an image forming region formed by the ink and the vicinity of the image forming region on the printing medium prior to the application of the ink, wherein a surface tension of the liquid composition is higher than that of the ink.
摘要:
An ink jet recording method and apparatus for performing recording by discharging ink onto a recording medium in accordance with recording data using a recording head having ink discharge ports for discharging the ink. The apparatus includes a scanning unit for scanning the recording head relative to the recording medium for discharging ink to record pixels on the recording medium, and a determining unit for determining whether the recording data includes non-discharge data for a predetermined number of successive pixels to be recorded by the recording head, and for generating a corresponding determination output signal. The apparatus further includes a control unit for controlling ink discharge in accordance with the determination output signal such that an amount of ink discharged for forming at least one pixel subsequent to the predetermined number of successive pixels is reduced from a predetermined recording amount, when the recording data is determined to include non-discharge data for the predetermined number of successive pixels.
摘要:
Provided is an ink-jet recording process for forming a color image on a recording medium using a liquid formulation and a color ink in combination, wherein the liquid formulation contains a cationic polymer having a weight-average molecular weight in the range of from 400 to 1,400, and the liquid formulation and the ink are each ejected from a recording head having an ink ejection volume per dot of from 2 to 25 picolitters.
摘要:
Disclosed herein is a colorless or pale-colored liquid composition comprising a cationic substance, wherein the liquid composition contains in combination a cationic substance and a nonionic polymeric substance.
摘要:
A liquid composition according to the present invention contains at least a cationic substance and finely ground cellulose. The invention further provides a liquid composition which contains a cationic substance having a molecular weight of 1000 or less and finely ground cellulose. The invention further provides an ink set which is obtained by combining the liquid composition with an ink, and an image-forming method and apparatus which employ the liquid composition and the ink.
摘要:
The present invention provides a liquid composition containing a cationic fluorocarbon surfactant having a general formula [I] or [II] and a polymer compound in a solvent, and a liquid composition containing a cationic fluorocarbon surfactant having a general formula [III] and a polymer compound in a solvent: ##STR1## wherein Rf represents a fluorocarbon group in which at least some of the hydrogen atoms in an alkyl group having 4 to 12 carbon atoms are substituted by fluorine atoms, each of R.sub.1, R.sub.2, R.sub.3, R.sub.4, and R.sub.5 represents a hydrogen atom or an alkyl group having 1 to 3 carbon atoms, HX represents a hydrohalogenic acid, and X.crclbar. represents a halogen anion; ##STR2## wherein n represents an integer from 4 to 12, and X.crclbar. represents a halogen anion.The present invention further provides an ink set, in which the above liquid composition is combined with one or more inks, a method of forming an image and apparatus for forming the image by applying the ink set and liquid composition.
摘要:
The invention provides a liquid composition containing a metallic coordination compound in a solvent, an ink set in which the liquid composition is combined with one or more inks, a method of forming an image, and an image-forming apparatus applying them.