Abstract:
PROBLEM TO BE SOLVED: To provide a new pigment-dispersed ink composition based on an organic solvent excellent in dispersing stability, and to provide a liquid ink composition especially suitable for inkjet printing ink. SOLUTION: The invention relates to the ink composition a dispersing medium which is liquid aliphatic hydrocarbon at normal temperature, a polymer dispersant which is conventionally known as the dispersant and soluble in the dispersing medium, and dispersing coloring agent which is fine particles of carbon or organic pigment, in the medium, wherein a dispersion aid to improve the dispersing stability of the coloring pigment such as (a) N, N-dialkylaminoethylacrylate and (b) N-(1'-sulfoxy-3'-methyl-5'-chloro)-3-hydroxy-2-naphthalenecarboxamide (abbreviated as naphthol AS-F), or N-(3'-sulfoxy)-3-hydroxy-2-naphthalenecarboxamide (abbreviated as naphthol AS-PS) are jointly used. COPYRIGHT: (C)2008,JPO&INPIT
Abstract:
PROBLEM TO BE SOLVED: To provide an ink-jet ink for printing on an eggshell in which the printing density is high with slight bleeding without requiring purification, etc., of raw materials and without causing elution of a color and permeation of the color into albumen during production of a boiled egg. SOLUTION: An ink composition is characterized in that the ink composition is composed of (a) charcoal which is a food additive and (b) a water-insoluble solvent that is a food additive. The ink-jet ink is characterized in that the ink composition is prepared for ink-jet printing and all the constituent components belong to either of the food additive and a food. A method for printing on the eggshell is characterized as printing with the ink-jet ink according to an ink-jet method. An egg is printed by the method for printing. COPYRIGHT: (C)2007,JPO&INPIT
Abstract:
PROBLEM TO BE SOLVED: To provide a composition for forming aluminum nitride which has excellent formability, is capable of holding the shape even through a degreasing step and a sintering step and has practically usable aluminum nitride packing density after sintering and a formed article obtained by forming and sintering the resin composition. SOLUTION: The resin composition for forming the aluminum nitride contains (a) aluminum nitride powder, (b) a sintering aid, (c) a thermoplastic resin and (d) a compound having a polar group and a higher aliphatic group in a molecule as essential components. COPYRIGHT: (C)2007,JPO&INPIT
Abstract:
PROBLEM TO BE SOLVED: To provide a reaction method for oxidizing carbon black, having less precipitate, capable of obtaining dispersion in a high yield, which is also good in the point of a long period preservation stability, self-dispersing type carbon black oxidized by the reaction method and aqueous pigment-based jet ink excellent especially in both of dispersion stability and ejection stability of the ink by obtaining the ink composition consisting mainly of the self-dispersion type carbon black dispersion. SOLUTION: This method for producing surface-treated carbon black is characterized by crushing (a) carbon black in water by using (c) a dispersing agent in advance, and then liquid phase-oxidizing by using (b) a hypochlorite solution. The method for producing self-dispersing type carbon black dispersion is provided by removing ≥50% reaction supernatant from the slurry containing the oxidative surface-treated carbon black by a centrifugal separation method and/or decantation method, diluting the rest of slurry containing the carbon black with deionized water and performing deionization by an ultrafiltration method. COPYRIGHT: (C)2007,JPO&INPIT
Abstract:
PROBLEM TO BE SOLVED: To enable a printed matter to show a bright red when printing is conducted on cloth by an inkjet method. SOLUTION: The inkjet ink set for printing on cloth comprises a magenta ink containing C.I. Pigment Red 213 and a yellow ink containing a yellow pigment that, when printed on the cloth by the inkjet method, gives the chromaticity a * and b * of the L * a * b * color system satisfying the expressions: -18≤a * ≤0 and 50≤b * ≤80. COPYRIGHT: (C)2005,JPO&NCIPI