What is Silk Fiber? Definition of silk fiber. Different Types of Silk Fiber, Uses and production.

 What is Silk Fiber? Definition of silk fiber. Different Types of Silk Fiber, Uses and production.

What is Silk Fiber?

Silk is a fine, durable, soft, and durable fiber produced by its cocoons.

Silk is a natural fiber found in insects (called silk moth). Thus, silk is an animal's fiber. Silk fiber is made of protein. A silk thread that looks soft is as strong as a metal thread compared.

Silk threads are converted into silk threads used to make silk fabric.

Raising silkworms for silk is called Sericulture.

                                                         Fig: Silk Fiber

Life History of Silk Moth

A silk moth is a type of insect. The silk moth passes through a stage similar to a worm called a ‘worm’ (also called silkworm) and a closed form called a pupa ’during its maturation between egg hatching and the formation of an old silk moth.

This can be written as:

Egg → Worm (worm) → Pupa → silk moth

The caterpillar (or caterpillar) stages and pupae in the life history of the silkworm are quite different from the appearance of an old moth. It is the silk (or worm) of the silk moth that produces the silk and not the old moth.

The silkworm (or worm) of a silk moth that produces silk is called a silkworm.

(1)A female silk moth lays eggs from tree leaves (such as a mulberry tree)

 (2) Scrambled eggs produce worm-like larvae. Silkworm larvae are called caterpillars or silkworms. Silk larvae feed on the leaves of the mulberry tree and grow large. Silk is made up of two layers of fluid in the head of a silkworm.

(3) When a silkworm (or caterpillar) prepares to enter its next stage of growth called a pupa, it begins to weave a net to hold it together. It then moves its head from side to side like the eighth figure. During this process, the silkworm pulls out silk from a liquid form through a small opening in its head that hardens when it receives air and forms a silk thread (or silk thread). Soon the silkworm (or caterpillar) covers itself completely with silk threads. The silk cover that the silkworm (or caterpillar) of silk moth is called is a cocoon. The caterpillar is made into an embryo to protect its growth as a caterpillar. The pupa is a stage in the life history of the silkworm moth when the caterpillar (or silkworm) is ‘buried’ in the hard shell of silk fibers called cocoons. The silkworm moth continues to grow inside the cocoon to form a silkworm moth.

(4) When a caterpillar (covered with cork) grows fully to form an old silk moth, then the cocoon separates and a fine silkworm emerges. The old female silk moth then lays more eggs. In this way, the life story of the silk moth is erased.

To produce silk, embryos that grow inside a cocoon (such as a pupa) are not allowed to ripen into an adult silk moth. As soon as the cocoon is formed it is used to obtain silk

Threads and a growing worm (like pupa) are killed. This is because if a silkworm (such as a caterpillar) is allowed to ripen into a silk moth, then a fully formed silkworm releases a liquid that will melt part of the silkworm to break out and fly away. . This cracking of the cocoon causes damage to its silk fibers and thus lowers the silk level. Cocoons with growing silkworms are used to obtain silk. Some silkworms (such as caterpillars) are allowed to survive and mature into silkworm moths to lay eggs to produce additional silkworms.

Mulberry is called shehtoot.

Production of Silk

Increasing silk worms, processing cocoons for silk threads and making silk cloth (silk fabric) with silk threads.

(1) Raising Silk Worms for Cocoons

The silkworm moth lays hundreds of eggs at one time. The silkworm eggs are stored

Carefully on leaflets (or cloth strips) and sold to farmers of silk worms. Growers keep these eggs at the right temperature and humidity under clean conditions. The eggs are then heated to the appropriate temperature for hatching. When eggs are hatched, silkworms (worms or caterpillars) hatch.

Silk worms are fed on cut bean leaves. Silk larvae feed day and night and grow

Large in size. After about 25 to 30 days, the worms stop eating and get ready to spin. Worms crawl on the branches near them and spin the cocoons of the silk threads. The worms lock themselves completely in silk cloths for two or three days.

(2) Ancestor Processing for Silk Fibers

All the cocoons are collected in one place. Lots of cocoons are used to make silk threads. Lots of caterpillars are immersed in hot water. Hot water causes the silk fibers of the cocoons to separate. Long silk threads are obtained by loosening the cocoons. The process of removing silk from fibers to be used as silk is called reeling. The reeling is done with special equipment that releases silk fibers into the fabric.

(3) Converting Silk Fiber into Silk Fabric

The silk fibers found in the silk are woven (twisted) to form silk fibers called silk threads.

Silk thread is then woven into the weaving loom to form a silk fabric by weavers.

 Different Types of Silk

Silk produced by worms of various types of silk moths is different from captivity (rough, smooth, shiny, etc.). Some of the different types of silk are:

       1. Mulberry silk

       2. Tassar silk

       3. Mooga silk

       4. Kosil silk

These silk are found in fabrics woven by worms of various types of silk moths. The most common silk moth is the mulberry silk moth. The silk found in the silkworm moth is called the silk. Mulberry silk is soft, shiny (shiny) and elastic, and can be dyed in beautiful colors

The most common type of silk is silk.

Natural Silk and Synthetic Silk

Natural silk is found in silkworms and is made of ‘protein’. Natural silk is an animal's fiber.

Synthetic silk (called rayon) is found in wood pulp and is made from plant-derived material 'cellulose. (Paper is also made of cellulose found in wood pulp