tell me the definition and prpoperties of natural ,artificial silk
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natural silk is obtained from silkworm and artificial is made by silk rubber
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is a fibre having properties similar to that of silk
Fabric obtained from silk was very costly
Attempts were made to manufacture silk artificially
The fibre has properties similar to that of silk
It is cheaper than silk and can be woven like silk fibres
It can also be dyed in a wide variety of colours
Although rayon is obtained from a natural source wood pulp, it is artificial or man made
Rayon is mixed with cotton to make bed sheets or with wool to make carpets
The texture of silk fascinated everybody but silk was expensive
Silk fibre obtained from silkworm was kept as a closely guarded secret for a long time
It led to the preparation of artificial silk
It was developed in the United States in the late 1930s and used as a replacement for Japanese silk
Its properties are far superior to rayon and silk when wet
Artificial silk was used for many military applications
In the present day, imitation silk may be made with rayon, mercerized cotton, polyester or a blend of rayon and silk
For making yarn, it depends on the material you begin with, most yarn is pull so that the fibers are fairly straight and then twisted into long strings. The strings are then twisted together with other strings to make the yarn
The production of spider silk is not simple and there are inherent problems
Spiders cannot be farmed like silkworms since they are cannibals and will eat each other if in close proximity
The silk produced is very fine so 400 spiders would be needed to produce only one square yard of cloth
Fabric obtained from silk was very costly
Attempts were made to manufacture silk artificially
The fibre has properties similar to that of silk
It is cheaper than silk and can be woven like silk fibres
It can also be dyed in a wide variety of colours
Although rayon is obtained from a natural source wood pulp, it is artificial or man made
Rayon is mixed with cotton to make bed sheets or with wool to make carpets
The texture of silk fascinated everybody but silk was expensive
Silk fibre obtained from silkworm was kept as a closely guarded secret for a long time
It led to the preparation of artificial silk
It was developed in the United States in the late 1930s and used as a replacement for Japanese silk
Its properties are far superior to rayon and silk when wet
Artificial silk was used for many military applications
In the present day, imitation silk may be made with rayon, mercerized cotton, polyester or a blend of rayon and silk
For making yarn, it depends on the material you begin with, most yarn is pull so that the fibers are fairly straight and then twisted into long strings. The strings are then twisted together with other strings to make the yarn
The production of spider silk is not simple and there are inherent problems
Spiders cannot be farmed like silkworms since they are cannibals and will eat each other if in close proximity
The silk produced is very fine so 400 spiders would be needed to produce only one square yard of cloth
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