Pre filter Media is also know as nonwoven filter media. Nonwovens are typically manufactured by putting small fibers 
together in the form of a sheet or web (similar to paper on a paper machine), and then binding them either mechanically
(as in the case of felt, by interlocking them with serrated needles such that the inter-fiber friction results in a stronger fabric)
with an adhesive, or thermally (by applying binder (in the form of powder, paste, or polymer melt) and melting the binder 
onto the web by increasing temperature).
ADVANTAGES
1. High Efficiency/Perfomance
2. Disposibility/Recyclability
3. Pleatability/Moldablity/
4. Durability, Sustainability,Longer Life
5. Anti-bacterial
6. "Green" Impact in Production, Energy Saving
Applications of Textile industry polypropylene liquid filter bag for filtration :
1.Paints & lacquer industry
2.Wastewater treatment
3.Pharmaceutical industry
4.Food industry
5.Chemical industry
6.Beer, wine & spirit industry
SFF supply Textile industry polypropylene liquid filter bag for filtration
Polyester Filter bag is mainly used for industrial dust collection, clean air and protecting the environment.
Polyester Filter advantages:
1. Good Temperature-Resistance. Max. Temp. 150°C
 Physical Stability , Good Abrasion-Resistance.
2. High Filtration Efficiency: reach to 99.5%
3. Stable working time: up to more than 3000 hours. Could be used cyclically.
4. Variety of finish treatments.
5. Competitive Price with Good Quality.
6. Various Applications: Cement plant,Steel and iron industry,Flour Industry, Chemical industry etc.
7. Customized by order. 
PE Physical Properties:

Weight(gsm)

 500

Thickness(mm)

1.7

Width(mm)

≤2.2m

Finish treatment

Singeing, Calendering, Heat setting

Air permeability(L/m2.s)

200-300

Tensile strength(N/5cm)

warp

≥1100

weft

≥1500

Tensile  elongation(%)

warp

≤35

weft

≤60

Heat shrinkage(%)

warp

≤1.5

weft

≤1.0

Temperature(°C)

Continue

130

Instant

150

PE Chemical Properties:

Anti-acid

Middle

Anti-alkali

Middle

Anti-abrasion

Excellent

hydrolysis stability

Middle

Product features:
1,Higher adsorption capacity and faster adsorption velocity
2,Easy regeneration and faster desorption velocity
3,Best heat regeneratioin and lowest ash content
4,Acid-resisting,alkali-resisting,there is better electric conductivity and chemical stability.
5,Easy to profile of activated carbon fiber can be made into different shape, like felt, silk, cloth and paper etc.