Question

what is silk?from where is it obtained? And explain the seven properties of silk you know?​

Answer 1

Answer:

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 seven properties

1. Breathability. Silk is a lightweight, breathable fabric, which means it reduces the risk of overheating when you’re going about your day.
2. Elasticity. If they’re treated well, silk clothes are good at keeping their shape. Silk is flexible and has some elasticity to it which allows it to pull itself back into shape after stretching – to some extent. Don’t stretch silk unnecessarily or you may go too far.
3. Absorbency. Silk is fairly absorbent. Water weakens the fibres, though, so treat your silk carefully when you’re washing it. Cleanipedia has advice on that can help. If you’re using a fabric conditioner, you’ll want something gentle, such as Comfort Pure and should always check the item’s label for washing instructions.
4. Thermal regulation. Silk’s good at maintaining your body temperature which means it can help you feel cool in hot weather and warm in the cold. If you want a fabric that’s both thin and a good insulator, silk’s the way to go.
5. Drying speed. Silk is fast drying which makes it highly practical when managing your laundry or just going about your day-to-day business.
6. Shine. Silk fibres are smooth and straight, unlike wool, for example, which has a scaliness you’ll see if you put it under a microscope. This difference makes silk smoother to the touch and shinier to the eye, with an altogether luxurious feel.
7. Crease.Silk is the lightest among natural fibres. The fibre decomposes when exposed to a heat of 171°C. It has a high resistance to creasing due to the good resilience of the fibres and their ability to recover rapidly from other deformations.