Journal
DYES AND PIGMENTS
Volume 166, Issue -, Pages 330-339Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.dyepig.2019.03.027
Keywords
Anthraquinone dyes; Blue color; Supercritical carbon dioxide; Polyester fabric (PET)
Funding
- Ministry of Trade, Industry and Energy (MOTIE) of Korea [10078334]
- Korea Evaluation Institute of Industrial Technology (KEIT) [10078334] Funding Source: Korea Institute of Science & Technology Information (KISTI), National Science & Technology Information Service (NTIS)
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Two series of anthraquinone dye derivatives [CNU-1 to CNU-7 and CNU-8 to CNU-10] have been successfully synthesized from commercially inexpensive and readily available starting materials by using simple and convenient methods. All synthesized anthraquinone dyes were characterized by H-1 NMR, C-13 NMR, and UV-Vis spectroscopy and HRMS. The UV-Vis spectra of the dyes indicated that the absorption wavelengths of dyes were approximately 590-655 nm, which indicated that these are blue dyes. Polyester fabrics were dyed with these compounds using supercritical carbon dioxide as a green medium. All the compounds displayed deep color shades and excellent dye fixation even at low concentrations (0.5%). In the fastness experiments, compounds CNU-1 to CNU-10 all exhibited excellent results in washing (4-5), sweat (4-5) and lightfastness [CNU-1 to 7 (4-5), CNU-8 to 10 (2-3)]. Hence, our results revealed that these types of anthraquinone dyes are commercially most acceptable, and they practically exhibited satisfactory color uniformity.
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