long
model

Tech Info

 
Metric units to British and vice versa
m      x  1.094   =  yard yard           x  0.914   =  m
cm    x  0.3950 =  inches inches        x  2.540   =  cm
g/m2 x  0.0295 =  oz/yd2 oz/yd2         x  33,900  = g/m2
kg     x  2.2046 =  lb (pound) lb (pound) x  0.4536  =  kg

Terms Designating the Fitness of Yarn Counts

Conversion Formulae

Fineness

Known

Fineness Wanted

tex dtex den Nm

Nec

[Cotton]

tex

tex tex x 10 tex x 9 1000 / tex 590 / tex
dtex dtex x 0.1 dtex dtex x 0.9 10000 / tex 5900 / tex

den

[denier]

den x 0.11 den x 1.11 den 9000 / den 5315 / den
Nm 1000 / Nm 10000 / Nm 9000 / Nm Nm Nm x 0.59
Nec 590 / Nec 5900 / Nec 5315 / Nec Nec x 1.693 Nec
Nek 886 / Nek 8860 / Nek 7672 / Nek Nek x 1.129 Nek x 0.667
New 1940 / New 19400 / New 17440 / New New x 0.516 New x 0.305

NeL

[Linen]

1653 / NeL 16530 / NeL 14880 / NeL NeL x 0.605 NeL x 0.357

Physical Properties of Fibres

Cotton Flax Viscose Modal Tencel Polyester Polyamide [Nylon] Acrylic Silk Wool Elastomeric
Chemical Composition Cellulose Cellulose Regenerated Cellulose Regenerated Cellulose Regenerated Cellulose Polyethyleneglycol terephthalate Polyhexamethylene Diaminoadipate al least 85% Polyacrylonitrile Fibroin Keratin 85% segmented Polyurethane, Polyether Type
Tenacity Strong Very Strong Fair Strong Strong to Very Strong Strong to Very Strong Strong to Very Strong Fair to Strong Strong Weak Very Weak
Dry (g/tex) 27 to 44 59 14 to 45 35 37 29 to 50 36 to 65 20 to 27 30 to 41 9 to 18 5 to 7
Wet (g/tex) 27 to 46 64 7 to 24 20 30 29 to 50 32 to 55 16 to 24 23 to 32 7 to 16 5 to 7
Wet / Dry 100 to 105% 108% 50 to 53% 57% 81% 100% 82 to 89% 80 to 90% 77 to 78% 78 to 89% 100%
Elongation 5% 3% 20% 13.0% 13% 10% 20% 10% 15% 20% 50%
Handle Medium to Hard, Crisp Hard, Very Crisp Medium to Soft, Limp Very Soft, Limp Very Smooth Medium to Hard, Waxy Medium to Hard, Waxy Soft, Waxy Medium, Warm Medium to Soft, Warm Medium Waxy
Hydroscopic Nature Absorbent Absorbent Extremely Absorbent Extremely Absorbent Extremely Absorbent Completely Hydrophobic notAbsorbent Hydrophobic Very Absorbent Very Absorbent Hydrophobic
Moisture Regain % 7.0 to 8.5% 7.0% 12.0 to 14.0% 12.0 to 14.0% 12.0 to 14.0% 0.1 to 0.3% 4.0 to 4.5% 1.2 to 2.0% 8.9 to 10.1% 14.0 to 16.3% 0.4 to 1.3%
Fibres Density (g/cm3) 1.52 1.50 1.49 1.50 to 1.55 1.50 to 1.55 1.39 1.14 1.16 1.34 1.31 1.0
Melting Point Does not melt Does not melt Does not melt Does not melt Does not melt 50 to 260oC 250 to 260oC Does not melt Does not melt Does not melt, 130oC begins to Yellow 230oC

Product Blends

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