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## Relation between Immaturity Count and Fiber Weight

Relation between Immaturity Count and Fiber Weight
B.Sc. in Textile Engineer
Noakhali Textile Engineering College
Cell: +8801812478393

Introduction:
Fiber maturity is a fiber characteristic which expresses the relative degree of thickening of the fiber wall. In the other words, it is the measure of primary and secondary wall thickness. A fiber will be mature if a high degree of wall thickening took place during cotton growth.
Relation between Immaturity Count and Fiber Weight

Let,

N = Rod like normal fibers,
D = Dead fibers (Ribbon like)
H = Actual fiber weight per cm
Hs = Standard fiber wt. per cm

Peirce and Lord found N-D and H for several pure strains or cotton and within each series only the maturity varied. A linear relationship was found between H and N-D:

H = 0.9370 (N-D) + 135.2
And, Hs = 0.9370 (67-7) + 135.2

According to standard counting,

The no. of normal fiber, N = 67
And the no. of dead fiber, D = 7

H          Actual fiber weight per cm
Now, we know the Maturity ratio, M =…… = ………………………………………
Hs         Standard fiber wt. per cm

0.9370 (N-D) + 135.2
= ………………………………………
0.9370 (67-7) + 135.2

0.9370 (N-D) + 135.2
= …………………………………..
191.42

= 0.0049 (N-D) + 0.706

N-D
For rounded figure, M = …………… + 0.7
200
[It is the relation between immaturity count and fiber wt.]

The maturity ratio is therefore proportional to the degree of thickening of the cell wall.

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