Staple fiber may be varied in length, denier and other respects to render it spinnable on the several established systems for the natural fibers cotton, wool and flax.
Poiret coat from 1919 demonstrates the exquisiteness of many of his designs, incorporating black silk and wool weave with white kid cutwork applique and white broadtail trim.
Low temperature bleaching of wool with hydrogen peroxide using katalase as catalyst under acid condition has been studied as well as the related factors influencing it.
A detailed explaination is made on rational assortment of bourette silk, ramie, wool andchemical fibres for the purpose of improving rotor spun yarn quality.
With the development of biotechnics, especially the tissue engineering, the biological application of wool keratin attracts more and more researcher's attention.
They can watch the judging of the price cows, pigs, and other animals; they can see sheep getting their wool cut, and they can learn how that wool is made into clothing; they can watch cows giving birth.