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- Title
Synthesis and application of a novel, triphendioxazine‐based, phosphorus‐containing acid dye for wool.
- Authors
Cui, Jinhai; Zhang, Shufen
- Abstract
A novel phosphorus‐containing acid dye based on triphendioxazine was designed and synthesised from diphenylamine through a series of reactions. The dye has a navy‐blue colour, high molar extinction coefficient of 5.32 × 104 l/mol·cm, and high substantivity for dyeing wool in a salt‐free, aqueous dyebath. A high exhaustion value of 98.2% on wool fabrics was recorded at 3% omf and a liquor ratio of 1:20. The wash fastness values of the acid dye, including colour change and staining on cotton and wool, were grades 5, 4 and 4–5, respectively. The dry and wet fastness are grades 4–5 and 4, respectively. In addition, light fastness reaches grades 6–7 at 3% omf dye concentration. These dye properties are better than those of commercial triphendioxazine dyes, for example, CI Direct Blue 106 and CI Reactive Blue 198, under analogous dyeing conditions.
- Subjects
WOOL dyeing; ACID dyeing (Textiles); DIPHENYLAMINE; WOOL textiles; ORGANIC dyes; COLORFASTNESS (Textiles)
- Publication
Coloration Technology, 2018, Vol 134, Issue 5, p381
- ISSN
1472-3581
- Publication type
Article
- DOI
10.1111/cote.12352