摘要:
This invention relates to an ink set which can form a colored area on a recording medium with a broad color reproduction range, excellent uniformity of the colors, with effective prevention of bleeding at the boundary between adjacent different color areas on a recording medium, and high rub-off resistance of the colored area. The ink set has separately an aqueous anionic or cationic ink containing a coloring material, and a liquid composition containing fine particles dispersed therein and electrically charged at the surface in a polarity opposite to the ink. The ink and the liquid composition are adjusted to give, when mixed at a mixing weight ration of about 1:1, a pH of the liquid mixture to cause aggregation of at least the coloring material.
摘要:
A liquid composition is adapted for use with an anionic ink for forming a high quality image with alleviated bleeding by means of an ink-jet recording system. The liquid composition comprises a first cationic substance and a second cationic substance different from said first cationic substance, of which the first cationic substance is provided in the form of micro-particles at least whose surface is cationic.
摘要:
The present invention relates to a liquid composition, an ink set employing the liquid composition, a method for forming a colored area of an image on a recording medium with the ink-set, and an ink-jet recording apparatus employing the ink set are provided, which enables formation of ink-jet record on a plain paper sheet with a broad color reproduction range, uniformity of the color, less stripy unevenness in a solid print part, and high rub-off resistance of the record. The liquid composition is stable in storage, and is ejected stably from the recording head. The liquid composition is used for forming a colored area on a recording medium by application with an anionic or cationic aqueous ink containing a coloring material, and the liquid composition contains fine particles dispersed therein and the surface of the fine particles being electrically charged in a polarity opposite to the aqueous ink.
摘要:
Provided is a recording medium comprising alumina hydrate, wherein said alumina hydrate having a boehmite structure and containing silica within alumina hydrate particles, in part of or a whole of said alumina hydrate particles, and the crystallinity of said alumina hydrate obtained by an X-ray diffraction analysis of said recording medium is in a range of from 15 to 80.