Dyeing is the most energy intensive process of making towels. IKEUCHI ORGANIC towels are dyed based on the low impact dyeing concept which strives for human safety and minimum environmental impact. Our colorful organic is created through ozone bleaching methods which use far less chemicals and energy than common scouring and bleaching methods coupled with our world class wastewater processing facilities. A final wash with virgin water from the Ishizuchi mountain range caps off the dyeing process.
In order to make towels colorfast, yarn must undergo a process of scouring and bleaching to remove excess impurities and natural wax before being woven. Prevailing methods require large amounts of chemicals in hot water for long periods followed by an energy intensive wastewater treatment process. The ozone bleaching used at IKEUCHI ORGANIC is an energy efficient method that utilizes ozone which bleaches through oxidization at room temperature, allowing a 30-50% reduction in chemicals and less damage to yarn. This cutting edge technology was developed by Daiwa Die Co., Ltd in Imabari. （Reference: Ozone Bleach Association）
In order to make towels that are safe for babies and do not fade in the wash, we use reactive dyes that are free of heavy metals. The final dyeing process is conducted at INTERWORKS dyeing factory located in Saijo City, Ehime, the ‘spring water capital of Japan’. Residual dye is arduously washed out, taking five hours or more for dark colors, and wastewater is treated thoroughly with bacteria at facilities that pass Seto Inland Sea wastewater criteria, the strictest in the world. Before shipping, a final wash is done with virgin groundwater sourced from nearby Mt. Ishizuchi.