The present invention provides a pigment dispersion and a method of producing the pigment dispersion. The pigment dispersion includes: water; a pigment; a pigment dispersing polymer; and a rosin acid that includes at least one selected from the group consisting of abietic acid, salts of abietic acid, dihydroabietic acid and salts of dihydroabietic acid, and a total content of abietic acid, salts of abietic acid, dihydroabietic acid and salts of dihydroabietic acid is 50% by mass or higher with respect to a total mass of the rosin acid contained in the pigment dispersion. The pigment dispersion is excellent in terms of dispersibility, storage stability after dispersion, and jetability when used for an inkjet recording ink.
本发明提供了一种
颜料分散体和一种生产
颜料分散体的方法。
颜料分散体包括:
水;
颜料;
颜料分散聚合物;以及
松香酸,其中
松香酸包括至少一种选自阿比特酸、阿比特酸的盐类、
二氢松香酸和
二氢松香酸的盐类,且阿比特酸、阿比特酸的盐类、
二氢松香酸和
二氢松香酸的盐类的总含量占
颜料分散体所含
松香酸总质量的 50%或更高。该
颜料分散体在分散性、分散后的储存稳定性以及用于喷墨记录墨
水时的喷射性方面都非常出色。