Silk Fabrics
Silk is a natural protein fiber obtained from cocoons made by the larvae of the mulberry silkworm.
The shimmering appearance of Silk comes from the fibers triangular prism like structure which allows the fabric to refract light at different angles.

Silk was brought to America around 1619 to discourage tobacco planting. World War II stopped the Silk trade from Japan and prices increased dramatically. The U.S. started looking for Silk substitutes which led to the use of synthetics.
Silk is one of the strongest natural fibers however it loses up to 20% of this strength when wet. It can also become weak if it is exposed to excessive sunlight and can be attacked by insects, especially if left dirty.
Silk is susceptible to static cling and should be pre-washed before sewing clothing from it as it may shrink up to 8%. Dry Cleaning can still shrink Silk up to 4%. Sometimes the shrinkage can be reversed by a gentle steaming with a press cloth.
Silk has good absorbency which makes it comfortable to wear in warm weather and while active. It is used in clothing such as shirts, formal dresses, negligees, pajamas, robes and underwear.

