| abstract |
PURPOSE: To obtain the title composition having rapidly drying properties, excellent pigment dispersibility, improved adhesivity to written face after drying, excellent water resistance and washing resistance, comprising polyurethane, etc., a solvent-insoluble pigment component, a solvent component such as water and a dispersion auxiliary in a specific ratio. n CONSTITUTION: The aimed composition consisting of (A) 0.2-50wt.% resin component comprising polyurethane or polyurethane and polyester, (B) 2-30wt.%, preferably 4-20wt.% solvent-insoluble pigment component (e.g., carbon black or titanium oxide), (C) 50-95wt.%, preferably 75-90wt.% solvent component comprising water or water and a water-soluble organic solvent (e.g., methanol or diethylene glycol) and (D) 0.01-30wt.%, preferably 0.1-15wt.% dispersion auxiliary (e.g., acrylic resin). n COPYRIGHT: (C)1990,JPO&Japio |