Silk Physical & Chemical Properties

Silk is a natural fibre that is a solidifies protein secretion produced by certain caterpillars.

Physical Characteristics:
The fibre is a fine continuous strand unwound from the cocoon of silkworm. Silkworms are generally cultivated. The fibre can be fine and coarse, is lustrous, smooth, light weight, strong and elastic.

Specific gravity
– 1.342

Moisture- St. M.R
– 11%3

Strength- Tenacity
– Dry 4.3 g/d; wet = dry 924

Elasticity- Braking extension
– 23.4%
Recovery (%) – 525

– Moderate

Abrasion resistance
– Good

Dimensional stability
– Good

Silk has been used since a long time for a number of applications including:

Home furnishings