Difference between revisions of "Dyeing of cotton and bast fibres"
From Efficiency Finder
m (Protected "Dyeing of cotton and bast fibres" [edit=autoconfirmed:move=autoconfirmed]) |
|
(No difference)
|
Revision as of 11:21, 16 November 2010
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