Aroyleneimidazole dyes

CONTENTS
I. Introduction 826
II. Dyes based on naphthalene-1,4,5,8-tetracarboxylic acid 827
III. Separation of isomeric aroylenebenzimidazoles 828
IV. Production of naphthalene-1,4,5,8-tetracarboxylic acid 829
V. Dyes based on naphthoylenebenzimidazole-peri-dicarboxylic acid 830
VI. Dyes based on naphthalic (napthalene-1,8-dicarboxylic) acid 832
VII. Dyes based on pyrenic acid 838
VIII. Dyes based on benzene-1,2,4,5-tetracarboxylic acid 839
IX. Dyes based on phthalic acid 839
X. Dyes based on perylene-3,4,9,10-tetracarboxylic acid 841
XI. Dyes based on various dicarboxylic acids 841
XII. Reactive aroyleneimidazole dyes 841
XIII. Aroyleneimidazole dyes formed on the fibre 841