| 摘要 |
<p>1. Process for the preparation of concentrated solutions, optionally containing water, of metal complex dyestuffs which are free from sulpho groups, in monoalkyl ethers of polyhydric alcohols, characterised in that phase separation is effected in a mixture of the metal complex dyestuff, water and a mono-C3 -C4 -alkyl ether of a polyhydric alcohol as well as, optionally, a water-miscible carboxylic acid amide by adding inorganic salts - in particular at elevated temperature - and the organic phase is separated off.</p> |
