Important Textile Conversions and Formulas

The following chart is very important for most of the textile students. It contains basic unit conversions that are most commons.

Length:

1 spyndle	= 14,400 yd
1 hank	= 840 yards	= 7 leas
1 meter	= 1.09361 yd
1 Ligne	= 0.635 mm
1 yd	= 36 "

Weight:

1 lb	= 7,000 grain
1 kg	= 2.2046 lb
1 oz	= .02834 kg

Area:

1 oz/ yd^2

= 33.096 gm/ m^2

Formula

Apparel:

Metric Ticker No. = Resultant Count X 3

Calculations & Formula:

Basic Time = Observed Time X Rating

SMV = Basic Time + Basic Time X Allowances = 3.04+ 3.04 X 15% = 3.5 min

TOG	= CLO X 1.55
E

Textile Testing:

Moisture Regain (R)	= (W / D) X 100
Moisture Content (C)	= (W / W+D) X 100
Moisture Regain (R)	= 100 C / (100 - C)
Drape co-efficient (F)	= (Actual projected area of specimen - Disk Area) / (Specimen area - Disk area)
Wear Index	= (Wt. loss in mg X No. of Cycle Tested) / 1000

Yarn: