Knitting technology, Third Edition

1.5
Conversion formulae
Tex counts may be obtained from count numbers in other systems by using one of
the following formulae:
(To obtain the decitex count, multiply the tex result by ten.)
886
1938
591
1000
9
NeK
NeW
NeB
Nm
Td
An introduction to textile technology
5

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Example:
An interlock underwear fabric is weft knitted from 1/40’s NeB at a weight
of 5 ounces per square yard. Convert the yarn count to decitex and the fabric weight
to grams per square metre.
(a)
The conversion for Tex is 591/NeB so it is necessary to also multiply by 10 to
obtain decitex.
(b)
1 oz 
=
28.35 g and 1 yd
2
=
0.836 m
2
.
Therefore 5 oz/yd
2
=
(5 
¥
28.35) 
=
142 g 
¥
1/0.836 
=
170 g/m
2
.
References
1.
gibbon
,
j
.
e
., Crimplene: profile of a yarn’s problems and successes,
Hos. Trade J.
, (1965), Sept., 110–12.
2.
law
,
i
.
m
., Crimplene: a fibre legend,
Knit
.
Int.
, (1981), June, 78–81.
Further information
collier
,
a
.
m
.,
A Handbook of Textiles
, (1974), Pergamon Press.
joseph
,
m
.
l
.,
Introductory Textile Science
, (1966), Rinehart and Winston.
greenwood
,
k
.,
Weaving: Control of Fabric Structure
, Merrow, UK.
lord
,
p
.
r
. and 
mohamed
,
m
.
h
.,
Weaving: Conversion of Yarn to Fabric
, (1976), Merrow.
cooke
,
j
.
g
.,
Handbook of Textile Fibres
, (1968), Merrow, UK, I, II.
morton
,
w
.
e
. and 
hearle
,
j
.
w
.
s
.,
Physical Properties of Textile Fibres
, (1975), Textile Inst., Manchester,
UK, and Heinemann, London, UK.
harrison
,
p
.
w
.,
Bulk, Stretch and Texture
, (1966), Textile Institute, Manchester, UK.
ray
,
g
.
r
.,
Modern Yarn Production from Manmade Fibres
, (1962), Columbine Press.
wilkinson
,
g
.
d
.
a
., Knitter’s guide to texturising processes,
Knit. Outwr Times
, (1970), 22nd June, 57–65.
charnock
,
i
.
l
.
a
., Yarn quality for knitting.
Text. Inst. and Ind
., (1977),
15
, (5), 175–7.
hall
,
j
.
d
., The contribution of synthetic fibres and plastics to the textile industry,
Text. Inst. and Ind
.,
(1965),
3
, (10), 265–7.
 
The
count therefore
decitex
=
(
)
¥
=
591 40
10
148 dtex
6
Knitting technology

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