WebMar 18, 2024 · To make the polymer known as nylon, diamine acid is forced to enter into a reaction with adipic acid. This type of polymer is commonly known as PA 6,6, and it was the first type of polymer to be used for nylon fabric. PA 6,6 is a type of substance called a nylon salt, and this crystallized substance is then heated to form a molten substance. Silk is a natural protein fiber, some forms of which can be woven into textiles. The protein fiber of silk is composed mainly of fibroin and is produced by certain insect larvae to form cocoons. The best-known silk is obtained from the cocoons of the larvae of the mulberry silkworm Bombyx mori reared in captivity (sericulture). The shimmering appearance of silk is due to the triangular prism-like structu…
describe briefly how silk is produced. please help me in this …
WebDec 22, 2024 · The process of silk production is known as sericulture. This process is divided into several stages but typically starts from cultivating silkworms on mulberry leaves. The female silkworm lays 300-400 eggs … fix berber carpet that pulled out
Silkworm - The Life Cycle of Silkworm Processing of Silk - BYJU
WebOne of the oldest methods for the preparation of man-made fibres is solution spinning, which was introduced industrially at the end of the 19th century. Solution spinning includes wet spinning and dry spinning. The former method was first used to produce rayon fibres, and the latter method was used to spin cellulose triacetate to acetate fibres ... WebWhat is Silk Made up of? Silk is a fibre made up two different proteins – sericin and fibroin. Approximately 80% of silk fibre is made up of fibroin, which is concentrated at the core. … WebFeb 26, 2015 · Producing silk is a complex and skilled operation which has taken centuries to refine. The silkworm moth (Bombyx mori) has been domesticated for centuries, and the result is a creature which is bred and … fixbews com