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CrinleneŽ
Best performing polypropylene monofilament
for filtration fabrics. |
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SIDER ARC with 50 years experience on Monofilament
production, has been the European company producing PP Monofilament
after ZIGLER/NATTA's PP Catalyst development.
Since then SIDER ARC has constantly contribuited to market growth
and technology innovation through investment in equipment and people.
SIDER ARC is a major European producer of PP Monofilament for filtration
fabrics. The company has 10 extrusion lines and is the Italian market
leader for Technical Textiles.
SIDER ARC manufacturing facility is located in Cornaredo, Milano
and is designed to manufacture approximately 200 tons a month of
Monofilaments.
CrinleneŽ properties and target
markets
The properties of CRINLENEŽ (Polypropylene) Monofilament are compared
with PP Monofilament in diagram. The incorporation of STA (Special
Thermal Additive) in the Monofilament leads to improvements in a
number of properties, e. g. mechanicals performance, thermal performance.
Potential end-uses for CRINLENEŽ Monofilament include any liquid
filtration fabric, particularly where a higher resistance to temperature
than is normally obtained with polypropylene is required.
One of the market areas with a high interest level in CRINLENEŽ
Monofilament is the production of filter presses fabrics. CRINLENEŽ's
excellent thermal performance and mechanical stability make it an
ideal candidate for this application. |
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| Heat
Resistance |
| Time |
Average tenacity (cN/dTex)
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Average elongation
at break (%) |
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std type 1 |
thermost. |
std type 2 |
high mod. |
std type 1 |
thermost |
std type 2 |
high mod. |
| 0 |
5,756 |
6,000 |
5,928 |
6,274 |
32,11 |
23,39 |
24,34 |
20,75 |
| 1 |
5,642 |
6,188 |
5,470 |
5,588 |
27,06 |
30,36 |
24,80 |
16,77 |
| 2 |
5,702 |
5,908 |
5,124 |
5,691 |
28,05 |
28,61 |
22,72 |
17,69 |
| 3 |
5,356 |
6,303 |
5,402 |
5,428 |
23,94 |
32,09 |
24,07 |
16,45 |
| 6 |
5,293 |
6,330 |
5,028 |
5,370 |
22,74 |
31,98 |
22,22 |
16,44 |
| 9 |
4,930 |
6,479 |
5,281 |
5,592 |
20,56 |
32,21 |
22,14 |
17,62 |
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Monofilament Manifacture
On a standard extrusion line CRINLENEŽ is melt extruded at approximately
250°C. The initial monofilament is essentially isotropic and amorphous.
Under specific drawning conditions a highly oriented and semi-crystalline
product results. In this study the Monofilament diameter used is
0,15 mm for CRINLENEŽ and other PP.
Temperature Stability
Temperature test on CRINLENEŽ and others PP Monofilaments were carried
out at 100°, 120° and 140°C in stabilised oven at normal pressure.
Monofilament were removed after various times over 10 days and Tenacity
and Elongation at Break determined.
Mechanical Stability
Mechanical stability tests were carried out on the same range of
PP Monofilament mentioned in the previous section. Tenacity, elongation
at break, were recorded at various times after exposure at 100°,
120° and 140°C (see diagram), CRINLENEŽ showed clearly advantages
with respect to the above properties with only minor degradation
observed after long term aging.
The improvement at 140°C, however, was not as dramatic as observed
under 100°C testing. |
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Summary
- SIDER ARC is currently starting-up
a complete restructuring of production plant including a brand
new axtrusion line.
- SEFAR-FYLTIS in conjunction with SIDER
ARC has evaluated CRINLENEŽ Monofilament for use in liquid filtration
fabric with excellent result.
- SCAPA filtration is currently using
CRINLENEŽ and appreciates its performance.
- CRINLENEŽ Monofilament out performed
competitive materials (standard PP) in terms of mechanical performances
after temperature aging.
- CRINLENEŽ Monofilament is ideal for
liquid filtration fabric material, extending the life time of
the fabric beyond that achieved with standard PP.
SIDER ARC is:
- strongly focused on the customers in
order to meet needs and solutions.
- committed to gearing organisation and
porcess toward a sole sbjective: total quality in products and
services.
This is the philosophy used as a guide
during the 50 years activity of SIDER ARC, a philosophy that has
made it a major player on the market of Monofilaments.
However, SIDER ARC production range include Polyamide and Polyester
Monofilament, and with a wide range of diameters, from 35 to 10.000
dTex, today is probably the only alternative to Multinational
Monofilament Producer.
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