Page 62 - April-May-2020

62 129
Highly flexible, High-energy Textile Launching of White &

Li-Battery developed by PolyU Hong Kong for green denim line by ©

smart electronics Garmon Chemicals with

Eco-bleaching

Oxidative bleaching and neutralization are important steps in denim bleach wash process. Strong oxidizing
agents like hydrogen per oxide and potassium permanganate and neutralizing agents like hydroxylamine and
sodium metabisulfite are hazardous to environment.

© Garmon Chemical introduced its white&green line at the Amsterdam Kingpins trade show in April 2019. For
bleach and wash process they used an oxidizing agent “Avol Oxy White” for safe and sustainable bleaching
process which is an advanced alternative to potassium permanganate, presenting several advantages like:
free from metals and manganese compounds, safe to handle, easy to apply without tumble drying, giving
good quality final products.

A revolutionary and ecologically advanced neutralizing agent “Avol Lime” was presented that is classified at
level 1 in Zero Discharge of Hazardous Chemicals (ZDHC) gateway, removes more effectively permanganate
and its residues giving brighter discoloration and better contrast.

Twine Solutions,

Li-batteries have revolutionized the current life by flexibility — with bending radius of less than 1mm,
offering high energy supply for smart application. mechanical robustness and stability (with foldability
Researchers at The Hong Kong Polytechnic Universi- of over 1,000 cycles with marginal capacity degrada- new Digital thread
ty (PolyU) have developed highly flexible, high-ener- tion).
gy Textile Lithium Battery that offers more stable,
durable and safe energy supply for wearable The Textile Li-Battery, of less than 0.5 mm thick, also
electronics. Novel batteries can be used in health- possesses fast charging/discharging capability, and dyeing
care monitoring, intelligent textiles, smartphones, long cycle life. Safety tests conducted by continuous
Global Positioning System (GPS) tracking and hammering, trimming with scissors and penetrating
Internet of Things (IoT). with nail proved the battery can stably provide power The application of dyes or pigments on fiber, yarn or fabric has been done to achieve the color with desired
fastness. Twin has revolutionized the textile industry by shifting the simple thread dyeing into clean digital
output for the electronic components with no risk of thread dyeing.
Highly conducted metals such as copper and nickel catching fire or burst.
are uniformly deposited on pre-treated fabrics. The Twin solution, an Israeli technology, will publicized its digital dyeing of raw and off-the-shelf white thread
conductive fabrics with low sheet resistance and This innovative by researchers of PolyU’s Institute of including Coats thread, immediately on demand to create unique shades and color, at international ITMA 2019
high surface area act as current collector. The Textiles and Clothing (ITC) got three prizes at 47th Show going to be held at Barcelona on 20-26 June.
metallic fabrics, after adding active materials to act International Exhibition of Inventions of Geneva held
as cathode and anode, together with separator and in April 2019. The team leader at ITC, Professor Alon Moshe, CEO at Twin, commented “The Twin digital dyeing system for thread unveil the thread power
electrolyte were assembled into Textile Li-Battery. ZHENG said, “Wearable technology has been when touch the button. The digital progressions are thought-provoking for production and environmental
named as the next global big market opportunity impact. Therefore, Twin Digital thread dyeing system will provide social, economic and highly sustainable
Compared to the conventional low energy density, after smartphones and forecasted revenue from environmental benefits”. This system saves inventory costs, 70L water per 1kg of thread dyeing and offers
heavy weight and hard batteries the Textile Li-Batter- them would reach to US$100 billion by 2024. The minimum discharge.
ies are light weight, dominant rechargeable batteries Textile Li-Battery offers promising solution to wide The digitally dyed thread could be used for various application like shoes, apparel, sports or active wear,
with high energy density (more than Wh/L), excellent range of next-generation applications”. upholstery, home decor and many more.

April/May 2020 May/June 2019