Effect of the water content of padded cotton fabrics on reactive dye fixation in the pad‐steam process
| Autor: | Kuanjun Fang, Dawu Shu, Jixian Gong, Xiuming Liu, Jianfei Zhang, Xinqing Zhang |
|---|---|
| Rok vydání: | 2016 |
| Předmět: |
Dye penetration
010407 polymers Materials Science (miscellaneous) General Chemical Engineering technology industry and agriculture Steaming 02 engineering and technology 021001 nanoscience & nanotechnology medicine.disease 01 natural sciences 0104 chemical sciences chemistry.chemical_compound chemistry Chemistry (miscellaneous) parasitic diseases Polymer chemistry medicine Reactive dye Dehydration Dyeing 0210 nano-technology Sodium carbonate Water content Nuclear chemistry |
| Zdroj: | Coloration Technology. 133:57-64 |
| ISSN: | 1478-4408 1472-3581 |
| Popis: | A series of padded cotton fabrics with various water contents were obtained through vacuum dehydration. The effects of the water content on the fabric temperature variation during steaming, the colour properties, and the dye fixation rate (%F) were investigated. Dye distribution in the dyed cotton fibres was assessed. The influences of steaming time and sodium carbonate concentration on K/S value and %F of the dyed fabrics with low water content were also evaluated. The results indicate that reducing the water content of the padded cotton fabric to around 25.0% prior to steaming was favoured for reactive dyeing. The temperature of the wet fabric rose rapidly, the K/S value and %F were enhanced, and in addition the dye penetration into the dyed cotton fibres was sufficient. However, for padded fabrics with extraordinarily low and high water contents (e.g. 1.4% and 70.9% respectively), both the K/S value and %F were decreased. Furthermore, a white core phenomenon was evident for the fibres of the dyed fabric with a water content of 1.4%. Variation in the L* values was in line with the K/S values as the fabric water content varied. As expected, steaming time and sodium carbonate dosage can also affect reactive dye fixation greatly and should be determined accordingly for dyeing cotton fabric with low water content. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|
Plný text