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“ECO-DYE”: New YKK Dyeing Technology Significantly Reduces Water Use

YKK Little Parts. Big Difference., ECO-DYE Our precious water ECO-DYE is a technology to dye without using nearly any water." Percentage of Earth's water 1) Seawater, etc. 97.47% O Fresh water 2.53% 0.77%. Percentage of Earth's water that living creatures can utilize Fresh water : Underground water rivers and lakes Earth is in danger of a water shortage Number of people who do not have access to a stable source of water 2) Shift in world population vs. amount of water per person 1) Amount for water Demographic change (in millions) per person(m/year) 600 - - 8000 - 7000 500 - - 6000 400 - - 5000 300 - - 4000 200 – - 3000 1 in 10 100 – - 2000 people 1950 1995 1980 2012 2000 2025 (2012) The world's population as of 2012 was approximately 7 billion people. Of that, 748 million people are living without a stable supply of water. At the same time, demand for water is growing as the world's population grows. Issues faced by the apparel industry Condition of water resources in the country of production. (depletion etc.) Chemicals contained in wastewater Uses a great deal of water Wastewater contains chemicals Conventional aqueous dyeing technology Uses many types of chemicals Consumes large amounts of energy More ECO-Friendly dyeing technology SFD An advanced dyeing techology that uses CO2 instead of water Supercritical Fluid Dyeing Environmentally friendly dyeing chnology Waterless No wastewater ECO-DYE Separate, collect and reuse Low energy Difference between ECO-DYE and conventional dyeing Conventional aqueous dyeing Heat energy Water Chemicals ** Use Use YO dyestuff Dyeing Washing Drying Products Fabric (Zipper) Waste Waste Dyeing wastewater → Treatment process Heat energy dyestuff ECO-DYE Dyeing Washing No Drying Water Chemicals Heat energy Supercritical fluid Yo Yo- Recover Reuse Fabric Liquid Gas Products (Zipper) CO2 No wastewater w wwwwwww Difference between ECO-DYE and conventional dyeing Waterless to dye zippers Conventional Dyeing ECO-DYE YKK will continue to develop eco-friendly products Green technology Eco-friendly products 1) UNICEF and WHO. 2014. Progress on Drinking Water and Sanitation 2014 update 2) Ministry of the Environment Government of Japan. 2010. Annual Report on the Environment, the Sound Material-Cycle Society and the Biodiversity in Japan 2010 * "Waterless" means no use of water as a dyeing medium ** Extreme reduction in chemical use Fastening Products Group "YKK" and the combined mark of "YKK Little Parts. Big Difference are registered trademarks of YKK CORPORATION in Japan and other countries/regions. -------

“ECO-DYE”: New YKK Dyeing Technology Significantly Reduces Water Use

shared by CarabinerPR on Jan 24
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As a part of environmental activities at YKK Kurobe (Japan) Factory, YKK is developing an “ECO-DYE” approach that, utilizing the supercritical fluid dyeing (“SFD”) technology, allows it to red...

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YKK Group

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Technology
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