I am trying to make a presentation on natural textile fibers.

1. Green University Of Bangladesh
PRSENTATION ON
Natural Textile Fibers
Md. Yousuf Hossain, Green University Of Bangladesh, yousuf_te@yahoo.com

2. PRESENTED BY:-
NAME:- ID NO:-
Md. Yousuf Hossain. 120103063
Md. Yousuf Hossain, Green University Of Bangladesh, yousuf_te@yahoo.com

3. Natural Textile Fiber:- Natural textile fibers include those fibers produced by plants, animals, and geological processes.
Classification Of Natural Fiber:-
They can be classified according to their origin.
1.Vegetable origin …...(Cotton and Jute Fiber)
2.Animal origin …… (Silk and Wool Fiber)
3.Mineral origin……. (Asbestos Fiber)
Md. Yousuf Hossain, Green University Of Bangladesh, yousuf_te@yahoo.com

4. Properties of Textile Fiber:- To be a textile fiber it should have some properties.
Normally properties of textile fiber are three types
A) Physical Properties.
B) Mechanical Properties.
C) Chemical Properties.
Md. Yousuf Hossain, Green University Of Bangladesh, yousuf_te@yahoo.com

5. Cotton:-
Cotton is a soft, fluffy staple fiber that grows in a boll, or protective capsule, around the seeds of cotton plants of the genus Gossypium.
The fiber is almost pure cellulose. Under natural condition, the cotton balls will tend to increase the dispersion of the seeds.
Md. Yousuf Hossain, Green University Of Bangladesh, yousuf_te@yahoo.com

6. Chemical Composition of Cotton Fiber:-
Cellulose…………………………………..... 91.00%
Water………………………………………... 7.85%
Protoplasm , Pectins………………………… 0.55%
Fat and Wax ………………………………… 0.40%
Mineral Salts………………………………... 0.20%
Md. Yousuf Hossain, Green University Of Bangladesh, yousuf_te@yahoo.com

7. JuteFiber:- Jute fiber is a natural bast fiber. It is one of the most affordable natural fibers and is second only to cotton in amount produced and variety of uses of vegetable fibers. It is harder than other textile fibers. It is environment friendly.
Md. Yousuf Hossain, Green University Of Bangladesh, yousuf_te@yahoo.com

8. Chemical Composition of Jute Fiber
Cellulose........................................ 65.2%
Hemi-celluloses ............................ 22.2%
Lignin ............................................ 10.8%
Water soluble matter....................... 1.5%
Fat and wax ................................... 0.3 - 1.0%
Md. Yousuf Hossain, Green University Of Bangladesh, yousuf_te@yahoo.com

9. Silk:-
Silk is a natural protein fiber which is obtained from the cocoons of the silkworm. It is a natural filament produced by the salivary glands of silkworms, which are a type of moth that feeds on the mulberry bush.
Md. Yousuf Hossain, Green University Of Bangladesh, yousuf_te@yahoo.com

10. Chemical Composition of Silk Fiber
Fibroin 76%
Sericin 22%
Fat & wax 1.5%
Mineral salt 0.5 %
Md. Yousuf Hossain, Green University Of Bangladesh, yousuf_te@yahoo.com

11. Wool fiber:- Wool fiber is the natural hair grown on sheep and is composed of protein substance called as keratin. Wool is composed of carbon, hydrogen, nitrogen and this is the only animal fiber, which contains sulfur in addition.
Md. Yousuf Hossain, Green University Of Bangladesh, yousuf_te@yahoo.com

12. Chemical Composition of Wool Fiber
Keratin 33%
Dust 26%
Suint 28%
Fat 12%
Mineral matter 1%
Md. Yousuf Hossain, Green University Of Bangladesh, yousuf_te@yahoo.com