Cotton Fiber structure | Composition | Morphology | Part 2 | Urdu & Hindi

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Topic: Cotton Fiber structure | Composition | Morphology | Part 2 | Urdu & Hindi

Assignment: The cotton and viscos rayon have same building block unit but why they both are different and having different names?

In this video i discuss and explain the composition of cotton fiber that cotton contain cellulose, hemi-cellulose, lignin, waxes & pectins.
Also discuss about building block unit of cotton.
Also I draw the structure of cotton that how its look like and also how we know their inner structure from surface to the center of fiber.

Composition:
The cotton contain cellulose which is requirement for cotton fiber and which is plant based material.
Its also contain the hemi-cellulose which is basically the unmatured cellulose.
Its also contain lignin which is impurities in some cases if we want absorbency so in that case we remove it by different methods & chemicals.
The waxes and pecten's are also contain on the surface of the fiber which is also required to remove and these are find in cuticle of fiber.

Building block unit:
Basically the Units which is collected at specific ratio make the cotton, these units called building block units.
Now I discuss their building block unit and also explain the elements of their building block units. and i also discuss about assignment that The cotton and viscos rayon have same building block unit but why they both are different and having different names?

Structure of cotton:
As the cotton have morphology in which i discuss about cuticle where the waxes, pectens are found and then after cuticle if we move toward center of fiber the primary cell wall we found which made of cellulose.
After that we find secondary cell wall which is also contain cellulose but high % than primary cell wall.
And at the center we find the lumen which is empty and through this empty space the cotton able to absorb 30% of water.

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