Question

If 840 mature fibers and 160 immature fibers were found in a test specimen, the percent immaturity would be

• A. 16
• B. 26
• C. 30
• D. 32

Hint:

Percent immaturity is the number of immature fibers divided by the total number of fibers (mature + immature), multiplied by 100.

Answer 1

The Correct Option is A

Step 1: Understanding Fiber Maturity: Cotton fiber maturity refers to the degree of cell wall thickening. Mature fibers have thick cell walls, while immature fibers have thin cell walls. Immature fibers are weaker, less absorbent, and can cause problems in processing (neps, dyeing issues).
Step 2: Calculating Total Number of Fibers: \[ \text{Total Fibers} = \text{Mature Fibers} + \text{Immature Fibers} = 840 + 160 = 1000 \]
Step 3: Calculating Percentage Immaturity: \[ \text{Percent Immaturity} = \frac{\text{Number of Immature Fibers}}{\text{Total Number of Fibers}} \times 100% \] \[ \text{Percent Immaturity} = \frac{160}{1000} \times 100% = 16% \]