| 摘要 |
FIELD: organic chemistry, dyes. ^ SUBSTANCE: invention relates to dispersed dyes based on N-butylphthalimidyldiazo component and aniline azo component that are designated for staining and printing on semisynthetic and synthetic hydrophobic fibrous materials. Invention describes dyes of the formula (1): wherein R1 means hydrogen atom, methyl or -NHCO-(C1-C4)-alkyl; R2 means (C1-C4)-alkyl wherein is possible but optionally the alkyl chain comprising C2- or more carbon atoms is broken by oxygen atom; R3 has any value of R2 but independently on R2. Also, invention describes a mixture of dyes comprising at least two structurally different dyes of the formula (1). Proposed dyes of the formula (1) and mixtures of indicated dyes provide staining on semisynthetic and synthetic fibrous materials with good strength indices, especially, to laundering and perspiration. Proposed dyes of the formula (1) possess the enhanced staining intensity and thermal stability as compared with the known similar dyes comprising ethyl group near nitrogen atom of phthalimidyl radical. ^ EFFECT: improved properties of dyes. ^ 7 cl, 1 tbl, 3 ex |
