| 摘要 |
The invention relates to a method for the production of a phthalocyanine pigment preparation, characterised in that a crude phthalocyanine pigment is finely distributed in a method from the group of dry milling, wet milling, salt kneading, acid pasting and acid swelling to give a pre-pigment and then the pre-pigment is subjected to a finishing treatment in a mixture of water and an organic solvent at alkaline pH, increased temperature and in the presence of at least one pigment dispersant from the group of phthalocyanine sulphonic acids, phthalocyanine carboxylic acids, phthalocyanine sulphonate salts, phthalocyanine carboxylate salts and phthalocyanine sulphonamides. |
