NEW – Waterless Dying Technology in Textile Processing

Taiwan, China

Conventional textile dyeing is water intensive and generates highly polluted water that must be subject to costly treatment processes prior to discharge into rivers. A new commercial scale dyeing technology for dyeing synthetic fabric, DyeOx, has been implemented in Taiwan that utilises carbon dioxide (C02) instead of water in the dyeing process. The factory that is the subject of this case study installed two machines that produce 920 000 kg of fabric per annum and resulted in a reduction in water withdrawals of 8 256 000m3 when benchmarked against conventional dyeing methods.

A new commercial scale dyeing technology for dyeing synthetic fabric, DyeOx, has been implemented in Taiwan that utilises carbon dioxide (C02) instead of water in the dyeing process. The technology uses no water, no auxiliary chemicals and reduced energy when compared to conventional processes.

The technology was conceived at DELFT University and commercialized by the start up DyeCoo and Tong Siang Co., a dyehouse in Thailand.

Nike, the global sportswear chain, recognizing the potential of the technology in helping to achieve its sustainability objectives, entered into a strategic partnership with DyeCoo in 2012 to implement the waterless dyeing technology in one of their Taiwanese factories. This led to a further three Taiwanese factories, who supply other major sportswear brands such as Adidas, making the investment decision to implement the technology.

Intervention features:

Waterless dyeing technology, Zero waste water discharge