the disadvantages of natural fibres are the following
Synthetic fibers have the following advantages.
- Most synthetic fibers have good elasticity.
-Most fabrics made of synthetic fibers do not wrinkle easily.
-Fabrics made of synthetic fibers are generally more durable, less expensive, and more readily available then those made of natural fibers.
-Most synthetic fibers can handle heavy loads without breaking.
The major advantage is that synthetic fibers can't be decomposed by bacteria and such like. Natural things can be, because they're part of a natural food chain.
Furthermore, if you're making a synthetic material, you can alter its design to fit the purpose you're intending to use it for, making it more useful. For instance, you can make it fireproof, or even bulletproof. However, with natural materials it's take as you find, so you can't alter any properties which make it weak. I have never seen a naturally bulletproof material, I must admit, whereas synthetic Kevlar is frequently used in body armour, but has a unique structure cooked up by people in a lab
The disadvantages of synthetic fibres are:
a) They trap the heat in our body.
b) They make us sweat profousely.
c) They contain chemicals which may harm our skin.
d) They are not very comfortable.
e) They catch fire easily
f) They melt easily and stick on to the wearer
One advantage of using synthetic fibers is that they can be created when there is a deficit in natural fibers. One disadvantage is that they do not always work the same way that natural fibers do.
it has some chemical fibres which harm our skin
1, cheap
2, lousy
3, low class
4, priceless
5, dunno
Since it is cheaper to throw away synthetic polymers and make new ones than it is to reuse them. As a result to this, synthetic polymers build up the volume of trash.
They are cheaper than natural fibres, the have many special properties and are more variate.
Synthetic dyes have varying levels of toxicity depending upon the source, but nevertheless, they are preferred over natural dyes because of the ease of availability and the inexpensive production of large quantities.
Detergents are not biodegradable because they have highly branched hydrocarbon chain which is not biodegradable.
Phenacetin is not mined, it is a synthetic pain-relieving and fever-reducing drug.
Synthetic detergents are sodium salts of long chain of benzene sulphuric acid. Disadvantage of these are that they are non bio degradable and thus cause water pollution.
vat dyes acid dyes
Now, synthetic dyes are still used for dying fabrics, but they are also used for paper, food, clothes and yarn.
H. A. Lubs has written: 'The chemistry of synthetic dyes and pigments' -- subject(s): Synthetic products, Chemistry, Pigments, Dyes and dyeing
its a synthetic dye is used 2 colour putkis and pels. this is the advantage.
Synthetic dyes have varying levels of toxicity depending upon the source, but nevertheless, they are preferred over natural dyes because of the ease of availability and the inexpensive production of large quantities.
There are may types of dyes but these are the ones I know of. Acid dyes Azoic dyes Basic dyes Chrome dyes Mordant Developed dyes Direct dyes Disperse dyes Reactive dyes Sulphur dyes Vat dyes Raw fibres Velour cloth and furs Batik Tie dyeing BY MAX TURNER
Examples: polymers as nylon, teflon, PET; synthetic lubricants; pharmaceuticals; dyes; inks.
cheaper, colorful clothes in 1857
i think it was William Henry perkins :) x
disadvantages of analytico-synthetic classification
Chemicals are one of the disadvantages of synthetic fibers. Other disadvantages include the fact that they are not as comfortable, they trap the heat in and do not breathe like a natural fiber would.
Using synthetic materials, are less expensive for the suppliers to buy.
Chemicals are one of the disadvantages of synthetic fibers. Other disadvantages include the fact that they are not as comfortable, they trap the heat in and do not breathe like a natural fiber would.