Aramid Sewing Threads

Aramid Sewing Threads

The word aramid is a contraction of 'aromatic polyamide'. The chemical name is para phenylene terephthalamide or PPD-T. Created in the 1960s, aramid fibres consist of yellow filaments of about ten microns in diameter, assembled into threads. There are three main families of polyamides.

  • Para-aramids: used in many fields with high-tech applications, they are mainly known under the brand name Kevlar® from DuPont™ and are used for their mechanical properties, superior to those of Nomex®.

  • Para-aramid copolymers: derived from para-aramids, these are also used for their excellent mechanical properties

  • Meta-aramids: these are mainly recognised for their thermal and chemical characteristics, superior to Kevlar®, and are known under the Nomex® brand from DuPont™. They are mainly used in the fields of technical textiles and protective clothing.

Nomex® Sewing Threads

Nomex®meta-aramid threads from DuPont™ are heat resistant, self-extinguishing and do not melt. They can withstand continuous temperatures of around 220°C. Beyond this, the mechanical and dimensional characteristics decrease (slow carbonisation of the polymer) up to their decomposition temperature of 370°C.

The threads with the most beneficial properties are those containing continuous filaments. Their resistance to rupture and abrasion is far superior to other types of thread.

Applications of Nomex® sewing threads

  • Heat and flame-resistant clothing, textiles and stitching
  • Safety shoes
  • Protective gloves
  • Aircraft seats
  • Airbags

Technical data

Properties

Units

 

Material

 

Meta-aramid Nomex® from DuPontTM

Construction

 

Continuous filaments

Reference N°

 

060-0110C

060-0120C

060-0130C

060-0140C

Title (ISO 2060)

dtex

258*6 (Nm 39/6)

244*4 (Nm 41/4)

249*3 (Nm 40/3)

245*2 (Nm 41/2)

Rupture force

(ISO 2062)

N

63.3

41.7

31.7

20.7

Elongation at break (ISO 2062)

%

36

36

37

34

Packaging

m

Kingspool 147 g

1000 m

Kingspool 146 g

1500 m

Kingspool 144 g

2000 m

Kingspool 148 g

3000 m

Continuous temperature

°C

220

220

220

220

Peak temperature

°C

370

370

370

370

Kevlar® Sewing Threads

Kevlar® or para-aramid threads are heat resistant, self-extinguishing and do not melt. They can withstand continuous temperatures of around 170°C. Beyond this, the mechanical and dimensional characteristics decrease (slow carbonisation of the polymer) up to their decomposition temperature of 425°C.

Applications of Kevlar® sewing threads

  • Ballistics (bullet-proof vests)
  • Safety shoes
  • Protective clothing:
    • Heat resistant
    • Flame resistant
    • Cut resistant (gloves, loggers' trousers)
  • Composite materials
  • Airbags
  • Air dust extraction filters (hot gas filtration)
  • Tyres (reinforcement)

Technical data

Properties

Units

 

Reference N°

 

060-0010

060-0020

060-0030

060-0040

 

Material

 

Kevlar® DuPontTM

Construction

 

Continuous filaments

Discontinuous

filaments

Title

(ISO 2060)

dtex

507*3

(Nm 20/3)

214*4

(Nm 47/4)

207*3

(Nm 48/3)

207*2

(Nm 48/2)

Rupture force (ISO 2062)

N

239.6

102.5

76.7

48.0

Elongation at break (ISO 2062)

%

3%

4%

4%

3%

Diameter

mm

0.51

0.40

0.30

0.23

Linear density

m/kg

6 570

11 680

16 130

23 450

Packaging

Reel

500 g     3 000 m

250 g     3 000 m

200 g     3000 m

125 g     3000 m

Item

 

In stock

In stock

On request

On request

Aramid Sewing Threads (757.77k)

Technical data sheet: Aramid sewing threads.


Kevlar® Sewing Thread

Kevlar® Sewing Thread

Kevlar ® sewing thread is perfect for making high temperature resistant garments. It can also be used in the manufacture of safety clothing and composite materials. Very easy to use during the making, it is however necessary to use a suitable cutting system (special aramid chisel for example). The Kevlar ® yarn is available in 0.23 mm, 0.30 mm, 0.40 mm, and 0.51 mm diameters, sold in 3000 m reels.
Full description