Filter media are porous
structures that are permeable to fluid/air flow but
impermeable to particles such as dust and contaminants.
Filters are often used to remove harmful substances from air
or water. Choice of a filter media for a given task depends
on four parameters: strength, compatibility, efficiency and
capacity. Efficiency is the retention of particles in a
target category. Capacity is the ability to "hold"
previously removed particles while allowing further flow. A
balance between particle capture and flow requirements must
be met while ensuring integrity.
Polyester (PET) has a high temperature rating and is
widely used in commercial, industrial or residential air
filtration applications. Gas turbine filters, dust
collection filters, pleated panel filters are some of
the most common types. General Nonwovens FilterGen
brand products designed for air filtration offers high
air permeability, high strength and efficiency features.
Micro filtration and nano filtration applications uses
FilterGen media made of polypropylene or polyester
continuous filaments as carrier and support media to
give mechanical strength to composite media.
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In the automotive field, cabin air filters are more in
demand than ever before. A dirty cabin air filters can
significantly reduce airflow from the cabin vents, as well
as introduce allergens into the cabin air stream. There is a
trend to use synthetic media instead of pleated paper
because they are anti-bacterial, resistant to mildew and
provide additional possibilities like using a composite with
activated carbon layer. General Nonwovens offers filter
media with high air permeability. As an option the FilterGen
can be anti-bacterial and treated to avoid fungi growth.
In liquid filtration of the industry, FilterGen media can
be used as support media for pleated filter cartridge for
liquid filtration using membranes. The uniform weight
distribution, consistent web thickness and improved
mechanical strength with the required stability allows
filter producers to use it in increased hydrodynamic
conditions. 100% synthetic filter support media made by
chemically and thermally resistant continuous fibers are
thermally bonded. Thanks to the bonding technology used,
even though no chemicals and binders are used, there would
not be fibers that stick out and any fiber leaks. These
properties combined with controlled distribution of pore
sizes avoid leachables into downstream process therefore
making FilterGen media a good casting substrate in liquid
filtration.
100% synthetic FilterGen Media made of polyester fibers
are resistant to heat and abrasion can be used as media for
oil filters. Especially, in the hydraulic oil filter
manufacturing.
Coolant and lubrication filtration fields can use
FilterGen synthetic media as well. Milling, grinding,
cutting oils and washing solutions can efficiently be
separated from particles in the coolant and lubricant
fluids.
The entire FilterGen family is Eco-friendly. FilterGen
media is free of heavy metals, halogens and glass fibers.
They are also incinerable; meaning it burns leaving almost
no residues behind. FilterGen Media can be statically
charged, FilterGen Media is pleatable, heat sealable and
ultrasonic sealable, FilterGen Media can be treated with
anti-bacterial, is resistant to heat and abrasion and to
chemicals. It is possible to obtain specific filtration
performance parameters by changing the fiber size, fiber
density, bonding area and basis weight of the FilterGen
Media. In filtration applications requiring enhanced
chemical resistance FilterGen media made of polypropylene
can be used.
In addition to standard physical tests, General Nonwovens
has the capability to do the following tests to be able top
serve filtration market better : Air permeability,
mean pore size and pore size distribution, bubble point,
pressure hold, hydrostatic head and fiber size. For more
information on tests we make please see our page explaining
quality control facilities. (bu link ile technical info
içerisindeki quality control facilities sayfasına
yönlendirelecek)
Under the FilterGen brand General Nonwovens can produce
nonwovens and composite filter medias for the following
filtration end uses.
- Gas tribune filters,
- Pleated panel filters,
- Automotive cabin air filters,
- Filter media for SPA
- Oil and liquid filters,
- Casting substrate for liquid filtration
- Support media for pleated filter cartridges using
membranes
- Hydraulic oil filters,
- Cartridges for heating and ventilating filters,
- Technical & analytical filters,
- Coolant and lubrication filters,
- Dust collection filters,
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