Aqueous suspension of beta-phthalocyanine blue pigment, especially useful in offset printing inks, obtained by treating aqueous suspension of crude pigment in stirred ball-mill
摘要
<p>Production of an aqueous suspension (A) of beta -phthalocyanine blue pigment (I) involves (a) suspending crude phthalocyanine blue (II) in an aqueous medium using a dissolver and (b) milling and conditioning the suspension in a stirred ball-mill.</p>
