Sustainable fabrics Soy bean fibre

Soya bean protein fiber is a variety of regenerative plant fibre.
The fibre is made by liquefying protein then wet spinning it into long continuous fibre that are cut and processed.
Soy bean yarn can be mixed with wool, linen, silk and elastane and made into textiles such as underwear, towels, baby clothes and quilts. It is an eco-friendly fibre because it comes from a renewable natural resource.

In order to overcome the fatal weaknesses of chemical fibers efforts will mainly be made in three aspects

1. adopting natural resources from agriculture animals and forestry which are abundant and cheap 

2.using production processes which must be clean and friendly to the environment 

3. being more comfortable to the skin of the human body

China is the first country to achieve the industrial production of the soybean protein fibers in the world

Soybean fiber is a kind of a reproducible plant protein fiber and it’s the only botanic protein fiber known until now.

The good features of it:

1.cashmere feeling
knitting fabrics of it is really sore and

2.dry and comfortable
the moisture absorption is similar to cotton but the ventilation of it is more superior than cotton

3. luxurious appearance 
similar to silk

4.function of healthy
soy bean protein contains 18 kind of active materials which are required by human's body

5. easy to dye
the original color of it is light yellow and it can be dyed by acid dyestuff and active dye

6. good physical property
Breaking strength of the single soybean protein fiber is over 3.0cNdtex, which is higher than that of wool, cotton and silk and only lower than that of polyester fiber of high intension. By now, 1.27dtex fiber can be spun into 6dtex yarn with high quality, which can be used for high-quality and high-density fabrics. Because initial modulus of soybean protein fiber is on the high side and boiling water shrinkage is low, fabric size is stable and you will not have to worry about the shrinkage of fabric under natural washing conditions. Also, fabric of soybean protein fiber has outstanding anti-crease, easy-wash and fast-dry property.

//reference//
Sustainable Textile Design by Amy Schofiled p.39
http://www.swicofil.com/soybeanproteinfiberproperties.html
http://dc179.4shared.com/doc/Xghu4OSl/preview.html
http://baopeng.en.made-in-china.com/product/CqgxkJuKaXYE/China-Raw-White-and-Bleach-Soybean-Fiber-Yarn-Soybean-Protein-Yarn.html