The new Monocle yarns are made from regenerated bamboo fibres and coloured using five natural plant dyes

The new Monocle yarns are made from regenerated bamboo fibres and coloured using five natural plant dyes

A new range of "smart" cellulosic yarns derived from natural and rapidly renewable resources and coloured using an ultrasonic natural plant dyed process is set to make its debut later this week.

The Monocel high-tech top dyed yarns from the Norwegian company of the same name are claimed to be the only commercial lyocell-from-bamboo products, and combine the latest advanced dyeing technology with natural plant dyes based on traditional Asian medicinal roots, fruits and flowers such as turmeric, comfrey and safflower.

The patented dyeing process uses liquid plant dyes in a new ultrasonic 'attachment' for a high level of colour-fastness, with improved efficiencies in energy and emissions reductions achieved through lower temperatures and shorter dyeing times. The ultrasonic dyed colours are non-transferable and fully fast in wash, wear and care.

"By combining Monocel with natural plant dyes, we have achieved a beautiful colour range that is unique to the ultrasonic process and offer yarns that are completely non-toxic and gentle to the skin," the company says.

The yarns give natural, smooth and soft comfort qualities to jersey and woven fabrics. They can also be blended with GOTS certified organic cotton, spun in Siro-Compact and Compact formats for the finest yarns.

White bleached yarns use the more environmental hydrogen peroxide (H2O2) process, which is gentler than conventional chlorine and results in a stronger, vibrant white yarn. Monocel yarns are also available as PFD (prepared for dyeing) for greige fabric production.

The company works with handpicked suppliers and manufacturers and says its production processes are certified for environmental performance and social responsibility.

The bamboo used for the yarns grows naturally in abundance and is harvested by hand, it says, adding the raw material does not require any irrigation, pesticides or fertilisers, and does not repress food production.

Tests are also said to indicate that Monocel lyocell bamboo products are significantly more environmentally friendly than other lyocell products that are based on forest trees, and also stronger than bamboo viscose products – and that the closed loop lyocell technique significantly reduces water consumption and eliminates the use of hazardous chemicals.

The new yarn is being introduced to the market for the first time at the Filo International Yarns Exhibition taking place from 28-29 September at the Palazzo delle Stelline in Milan.