Difference between revisions of "Dyeing of cotton and bast fibres"
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| style="background:#AACCEE;"| Cotton yarn|| align="center"| dyeing|| align="center"| 0,8-1,1|| align="center"| 13-16|| align="center"| 15-30|| align="center"| 60|| align="center"| reactive dyes | | style="background:#AACCEE;"| Cotton yarn|| align="center"| dyeing|| align="center"| 0,8-1,1|| align="center"| 13-16|| align="center"| 15-30|| align="center"| 60|| align="center"| reactive dyes | ||
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| − | | style="background:#AACCEE;"| Cotton yarn|| align="center"| dyeing|| align="center"| 0,8-1,1|| align="center"| 13-16|| align="center"| 100- | + | | style="background:#AACCEE;"| Cotton yarn|| align="center"| dyeing|| align="center"| 0,8-1,1|| align="center"| 13-16|| align="center"| 100-150°|||| align="center"| sulphuric dyes |
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| − | + | °total water consumption | |
Back to [[Subsection DB textiles|EFFICIENCY FINDER FOR TEXTILE INDUSTRY]] | Back to [[Subsection DB textiles|EFFICIENCY FINDER FOR TEXTILE INDUSTRY]] | ||
Latest revision as of 12:28, 1 March 2013
Back to EFFICIENCY FINDER FOR TEXTILE INDUSTRY
- Typical dyeing processes and energy use for cotton fabric
Literature:Handy Manual: Textile industry,Output of the Seminar on Energy Conservation in Textile Industry, United Nations Industrial development Organization (UNIDO) and Ministry of International Trade and Industry (MITI, Japan), 1992)
- Typical parameters of the process
| Techniques | Temperature [°C] | Pressure (bar) | Heat transfer medium | Residence Time | Additional information | Literature |
| Batch dyeing or Exhaustion dyeing | 100 | Hot water | 30 min | direct dyes | manuale page 979 | |
| Semi- continous (Pad jig) | 60-85 | Hot water | direct dyes | |||
| Semi- continous (Paed roll) | 90 | Hot water | 2-8 h | direct dyes | ||
| Continous (Pad steam) | 60-85 | Hot water | direct dyes; steaming at 100-105°C | manuale page 980 |
- Energy consumption
| Fibres/Fabrics etc. | Process/technique | Electricity [kWh/kg] | Thermal energy [MJ/kg] | Water for dyeing [l/kg] | Water for rinsing [l/kg] | Dyestuff | Literature |
| Cotton loose fibre | dyeing | 0,1-0,4 | 4-14 | 8-15 | 8-16 | direct, reactive dyes | BAT in textile industry, 2003 |
| Cotton yarn | dyeing | 0,8-11 | 13-16 | 15-30 | 45-60 | direct dyes | |
| Cotton yarn | dyeing | 0,8-1,1 | 13-16 | 15-30 | 60 | reactive dyes | |
| Cotton yarn | dyeing | 0,8-1,1 | 13-16 | 100-150° | sulphuric dyes |
°total water consumption
