摘要:
Provided is a set of a reaction liquid that has a buffering action against pH change and exhibits a pH of 3.5 or more and 5.5 or less, and an ink that has a higher pH than the reaction liquid. The ink comprises a pigment to a surface of a pigment particle of which a basic group that forms a cation form at the pH of the reaction liquid is bonded. The pigment does not have an acidic group having a pKa equal to or less than the pH of the reaction liquid. The pigment is dispersed by a water-soluble polymer that has an acidic group having a pKa equal to or more than the pH of the reaction liquid and equal to or less than the pH of the ink.
摘要:
The present invention provides an ink jet ink that is capable of recording an image excellent in light resistance and ozone resistance and has excellent intermittent ejection stability. The ink jet ink contains a coloring material and a water-soluble organic solvent. The coloring material contains a compound represented by the following general formula (I), the water-soluble organic solvent contains ethylene urea and an alkanediol having 4 to 6 carbon atoms, and a content A (% by mass) of the coloring material, a content B (% by mass) of the ethylene urea and a content C (% by mass) of the alkanediol having 4 to 6 carbon atoms based on a total mass of the ink satisfy relationships of 0.20 ≤ B/A ≤ 10.0 and 0.10 ≤ C/A ≤ 10.0.
摘要翻译:本发明提供一种喷墨油墨,其能够记录耐光性和耐臭氧性优异的图像,并且具有优异的间歇喷射稳定性。 喷墨油墨含有着色材料和水溶性有机溶剂。 着色材料含有下述通式(I)所示的化合物,水溶性有机溶剂含有亚乙基脲和碳原子数4〜6的链烷二醇,着色材料的含量A(质量%), 乙烯脲的含量B(质量%)和碳原子数4〜6的链烷二醇的含量C(质量%)以油墨总质量为基准满足0.20≤B/A≤10.0和0.10≤ C / A≤10.0。
摘要:
Provided is an ink capable of recording an image that is excellent in ozone resistance, hardly causes blurring or color change even in a high-humidity environment, and is excellent in humidity resistance. The ink includes a coloring material and a lithium ion. The coloring material includes a compound represented by the following general formula (I) and a content of the lithium ion in the ink is 3.5 times or more in terms of molar ratio with respect to a content of the compound represented by the general formula (I).
摘要:
The invention provides colored fine resin particles useful as coloring materials for inks which can provide images having good water fastness, weather fastness and rub-off resistance and are excellent in dispersion stability, and a production process thereof. The colored fine resin particles have a structure in which a pigment coated with a water-insoluble resin is encapsulated with a copolymer composed of at least a polymerizable unsaturated monomer and a reactive emulsifier.
摘要:
The invention provides colored fine resin particles useful as coloring materials for inks which can provide images having good water fastness, weather fastness and rub-off resistance and are excellent in dispersion stability, and a production process thereof. The colored fine resin particles have a structure in which a pigment coated with a water-insoluble resin is encapsulated with a copolymer composed of at least a polymerizable unsaturated monomer and a reactive emulsifier.