| Micronaire
value of cotton
( Micrograms per inch
) |
=
Average weight of 1 inch of fibre in Micrograms
( 1/1000,000
gms ) |
| Denier
( for man-made fibres ) |
=
Weight in gms per 9000 metres of fibre |
| Micron
( micro-metre ) ( μm )
( fibre diameter ) ( normally
for Wool) |
=
0.001 mm |
| Denier
|
=
0.354 x Micronaire value |
| Micronaire
Value |
=
2.824 x Denier |
| TENACITY
CONVERSIONS (FIBRE STRENGTH )
g = gms |
 |
| |
g/den |
g/tex |
g/dtex |
cN/tex |
| g/den = |
1 |
(
g/tex ) / 9 |
(
g/dtex ) x 10 / 9 |
( cN/tex ) x 0.113 |
|
g/tex = |
(
g/den ) x 9 |
1 |
(
g/dtex ) x 10 |
(
cN/tex ) x 1.02 |
| g/dtex = |
(
g/den ) x 0.9 |
(
g/tex ) / 10 |
1 |
( cN/tex ) x 0.102 |
| cN/tex
= |
(
g/den ) / 0.113 |
(
g/tex ) / 1.02 |
(
g/dtex ) / 0.102 |
1 |
|
| |
|
| Fibre
diameter ( μ ) =
11.3 x √ ( dtex / sp.gr) = 11.9 x √ ( den / sp.gr)
|
| Tenacity
values: Kg / mm2 = 9 x (g/den) x Sp.gr. = RKM value
x Sp.gr. = ( g/tex ) x Sp.gr. |
