Synthesis and Application of N-methylphthalimidylazo Disperse Dyes to Cellulose Diacetate for High Wash Fastness

Autor: Sangcheon Kim, Hyun Jung Kim, Joonseok Koh, Nahyun Oh, Eunkyo Lee, Kyung Hwa Hong, Sanghyun Yoon
Rok vydání: 2020
Předmět:
Zdroj: Materials
Volume 13
Issue 21
Materials, Vol 13, Iss 4924, p 4924 (2020)
ISSN: 1996-1944
DOI: 10.3390/ma13214924
Popis: Cellulose diacetate fibers were prepared from cellulosic biomass with high &alpha
cellulose contents such as purified cotton linters and wood pulps. Cellulose diacetate fibers are sensitive to alkaline solution, which causes hydrolysis of the acetate ester to hydroxyl groups, especially at high temperatures. Thus, the low alkali-resistance of cellulose acetate fibers makes it difficult to achieve high wash fastness by restricting the application of intense after-treatment, such as reduction clearing. A series of N-methylphthalimide-based high-washable azo disperse dyes were synthesized and their dyeing and fastness properties on cellulose diacetate fabrics were investigated. From the overall results obtained in this study, N-methylphthalimidylazo disperse dyes are expected to be a desirable alternative to high value-added dyes that can be used for high color fastness dyeing of cellulose diacetate with a minimal discharge of wastewater during washing process.
Databáze: OpenAIRE
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