| 摘要 |
<p>PIGMENT COMPOSITIONS A phthalocyanine pigment composition comprising a phthalocyanine pigment and a sulphonated phthalocyanine derivative formed from sulphonated phthalocyanine dyestuffs having the formula wherein R represents a C1 - C22 cyclic or acyclic alkyl group, aryl, aralkyl group or a dehydrvabietylamine residue; and R1 represents hydrogen or a C1 - C22 cyclic or acyclic alkyl group, an aryl or an aralkyl group; the alkyl, cycloalkyl, aryl or aralkyl groups, R and R1 may be optionally substituted with one or more hydroxyl groups; x is from 1 to 4, y is 0 or from 1 to 3 and the sum of x and y is from 1 to 4, and, when y is 0 to 3, a sufficient quantity of dehydroabietylamine of the formula to substantially neutralise the free sulphonic acid groups, when y is O, a tertiary amine having the general formula or a quaternary ammonium salt having the formula: wherein R2, R3 and R4 each represent an alkyl or alkylene group, R5 represents an alkyl, alkylene or aralkyl group and B(-) represents an anionic species, the total number of carbon atoms in the tertiary amine or cationic portion of the quaternary ammonium salt being from 20 to 60, and at least one of the groups R2, R3, R4 and R5 having a backbone of at least 12 consecutive carbon atoms, gives printing inks and paint media having improved tinctorial strength, gloss and especially improved rheological properties. - 1a</p> |
