Yarn count vs Machine Gauge

Relation Between Yarn Count and Machine Gauge

Introduction:

Selection of machine gauge depends upon yarn diameter. Yarn diameter also depends on several factors such asyarn count, fiber type, yarn twist, yarn finishing etc. General practice of yarn count and machine gauge in different industries in Bangladesh given below:

Machine Gauge According to Yarn Count:

Yarn Count	Machine Gauge
16	18
18	20
20	20
20	24
24	22
24	24
26	20
26	22
26	24
26	28
28	22
28	25
28	28
30	22
30	24
30	28
30	34
34	28
34	28

The above values may differ, because it is the results of a research work. There is a relation between yarn in tex and machine gauge is given by a equation, 

For single-jersey, G = √(1650 / Tex) and 

For double-jersey, G = √(1400 / Tex)

Where, G is measured in needles per cm. 

The yarn count to be used on a circular knitting machinedepends largely on the pitch, and thus on the machine gauge. For any given machine gauge it can lie within a larger range, because on the same machine different yarn count scan be used, depending on the knitted structure, the desired optics(fabric appearance)and the fabric properties.