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.
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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®.
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Para-aramid copolymers: derived from para-aramids, these are also used for their excellent mechanical properties
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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
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Properties |
Units |
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Material |
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Meta-aramid Nomex® from DuPontTM |
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Construction |
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Continuous filaments |
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Reference N° |
|
060-0110C |
060-0120C |
060-0130C |
060-0140C |
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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 |
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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 |
|
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|
Reference N° |
|
060-0010 |
060-0020 |
060-0030 |
060-0040 |
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|
Material |
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Kevlar® DuPontTM |
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Construction |
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Continuous filaments |
Discontinuous filaments |
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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 |
|
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Item |
|
In stock |
In stock |
On request |
On request |
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