Fibre Fineness Testing Procedure || Fibre and Yarn Properties Testing of Textiles || TTQC [বাংলায়]

Fineness
Fibre Fineness
Microgram per inch (Mic Value)
Linear Density = Mass/length
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Fineness Grading depending upon Mic Value:
Very Fine = Below 3
Fine = 3-3.9
Avg. Fine = 4-4.9
Coarse = 5-5.9
Very Coarse = 6 and above

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Methods of Measuring Fineness:
Gravimetric Method
Optical Method
Unidimensional Method
Bi-dimensional Method
Air Flow Method

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Relation between Air Flow and Fibre Fineness
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Calculation of Specific surface of the cylinder
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Sheffield Micronaire for Fibre Fineness Testing
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Fibre Fineness Testing Procedure with Air Flow Method.