technical NOTES

Non-Woven Bags with appropriate finish for Coal & Cement Mill Product Collection Bag Houses

S. N. Head UOM Requirement for

Coal Mill

Requirement for

Cement Mill

2 Base Fabric NA 100% Acrylic

Homo- Polymer

(PAN)

100% Acrylic

Homo- Polymer

(PAN)

3 Specific Weight of

Fabric

Gm/M2 min. 600 Min. 600

4 Fabric Construction NA Scrim Supported,

Heavy Duty Nee-

dled

Scrim Supported,

Heavy Duty

Needled

5 Treatment NA Heat Set & Stabi-

lized, Signed Cake

Side, Oil & Water

Repellent Coating

Heat Set &

Stabilized, Signed

Cake Side, Oil &

Water Repellent

Coating

6 Anti-Static Capability

required

Yes / No Yes NO

7 Anti-Static Capability

provided by

NA SS wire / SS Fibre

Impregnation

Not Required

8 Nominal Thickness MM Supplier to confirm

(> 2.0 MM)

Supplier to

confirm (> 2.0 MM)

9 Mullen Burst

Strength

kg/cm2 Supplier to confirm

(> 35)

Supplier to

confirm (> 35)

10 Filtration Efficiency

for 5 micron size

particles

% >99.99% >99.99%

11 Air Permeability of

non-woven filter bag

with / without any

coating

CFM/ft2 @

0.5" WG

Max 20 to 30 Max 20 to 30

B Stitching

1 Stitching at Country /

Company

Supplier to confirm Supplier to

confirm

2 Stitching of bags

with micro porous

monofilament PTFE

threads

Yes / No 100 % by PTFE

Thread / Imported

Acrylic

100 % by PTFE

Thread / Imported

Acrylic

3 Stitching of Sub

Assembly with micro

porous monofilament

PTFE threads

Yes / No 100 % by PTFE

Thread / Imported

Acrylic

100 % by PTFE

Thread / Imported

Acrylic