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Dyeing of microdenier polyester fabric in supercritical carbon dioxide
| Content Provider | Semantic Scholar |
|---|---|
| Author | Liao, Shen Kung |
| Copyright Year | 2005 |
| Abstract | Supercrit ical flu id dyeing technology has been used to dye microdeni er polyethylene terephthalate fibres at elevated pressure and temperature simultaneously. It is observed that the dye speck disappears when pressure increases beyond 200bar and dye uptake increases when pressure increases above 250bar. Temperatures above 120°C are fo und to be suitab le fo r the dyeing of polyester fabrics. As the pressure re leases step by step, a deeper shade is obtained because of the incrementa l mi xing of the fluid , dyestuff and substrate. Di sperse Reel 60, which own anthraquinonid structure, could be di sso lved more eas ily in supercritical fluid system. Reaucti on cleaning is not req uired and the fas tness propert ies of dyed samples st ill meet commercial requirements. The results also show that the dye uptake could be ra ised with solvents such as dimethyl fo rmamide and dimethy l sulfox ide in combinati on with dyestu ffs. DSC and X-ray anal yses also indicate no obvious damage when polyester fab ri cs are dyed at 250bar pressure and 120°C temperature fo r 10mi n in superc ritical flu id carbon diox ide. |
| File Format | PDF HTM / HTML |
| Alternate Webpage(s) | http://nopr.niscair.res.in/bitstream/123456789/24695/1/IJFTR%2030(3)%20324-330.pdf |
| Language | English |
| Access Restriction | Open |
| Content Type | Text |
| Resource Type | Article |
