By Weight

By Weight = Titer:

The yarn gauge is determined by the number of weight units per length unit.

Designation

Definition

Formula

tex (Tt)
(new system)

tex = Weight in Grams per 1000m (1km)

tex = g / 1000m

Dezitex (dtex)

dtex = Weight in grams per 10.000m

dtex = g / 10.000m

: dtex = 1/10 tex

Denier (den) or (Td)
(International silk titer)

den (Td) = Weight in grams per 9000m

den = g / 9000m

Example for the designation of the yarns:

Yarn Type

Presentation

Designation of the yarns
Examples

Acronym
(Final count)

Single yarns

Filaments

               

140 dtex f40 S 1000

  • 140 dtex = 10.000 m yarn weigh 140g
  • f40 = 40 single filaments are in the filament
  • S 1000 = Filament with S-twist and 1000 twists in 1m

140 dtex

(Single titer = 3,5 dtex)

Plied yarns

  1. Same yarns: 40 dtex S 115 x 2 t0
  • 40 dtex = 10.000 meter yarn weigh 40g
  • S 115 = Single yarn with S-twist and number of twists in 1m
  • x2 = two yarns will be knit together (plied, not twisted)
  • t0 = Specification in case of plied yarns or filaments without specification of the twisting direction.

40 dtex x 2 t0

(80 dtex = 8 tex)

Yarn Type

Presentation

Designation of the yarns
Examples

Acronym
(Final count)

Folded yarns

Same yarns: 110 dtex S 117 x2 Z 670

  • 110 dtex = 10.000m yarn weigh 110g
  • S 117 x2 = Single yarn / initial plied yarn have every one 110 dtex with S-twist and 117 twists in 1m
  • Z 670 = Final plied yarn has 220 dtex = 22 tex with Z-twist and 670 twists in 1m

110 dtex x2

(220 dtex = 22 tex)

Same yarns: 40 tex S 600 x3 Z 400

  • x3 = three plied yarns are twisted together
    • each initial plied yarn has 40 tex with S-twist and 600 twists
    • Final plied yarn has 40 tex x3 = 120 tex with Z twist and 400 twists in 1m

40 tex x3

(120 tex)

:
The twisting direction of the final plied yarn is normally opposite to the twisting direction of the single yarns or of the initial plied yarn.