Glycol ether benzoates, glycol benzoates and methyl benzoate facilitate the dyeing of the meta-aramid article, e.g., fibers, at or near neutral pH. The addition of an anionic surfactant, such as sodium lauryl sulfate, enhances the performance of the benzoates.

The present invention is to provide a color material with excellent dyeing property and excellent heat resistance, and a method for producing the color material, which is able to obtain the color material with high purity and at high yield. Disclosed is a color material represented by the following general formula (I): ##STR00001##
(symbols in the general formula (I) are as described in the Description.)

The present invention is to provide a color material with excellent dyeing property and excellent heat resistance, and a method for producing the color material, which is able to obtain the color material with high purity and at high yield. Disclosed is a color material represented by the following general formula (I): ##STR00001##
(symbols in the general formula (I) are as described in the Description.)

The present invention relates to new nanocellulose-based cationic dyes, to a process for their synthesis, and to their use in processes for dyeing fibers, such as textile fibers.

The present invention relates to new nanocellulose-based cationic dyes, to a process for their synthesis, and to their use in processes for dyeing fibers, such as textile fibers.