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1. PE easy dust, 2. PE ptfe membrane coated, 3. PE water and oil repellent, 4.PE anti static - details see: https://www.machineto.com/polyester-dust-filter-bag-10217790

Polyester needle punched filter felt
Polyester needle felt is the most versatile, most cost effective and most widely used filter medium for dust collection. It is strong, abrasion resistant, can work up to 150°C and has good resistance to common acids, solvents and oxidising agents.

Disadvantages
Polyester's only real weakness is a tendency to hydrolyse at elevated temperature which means that moisture can break down the fibres and cause them to revert to their basic constituents. This results in powdering of the fibres and a serious loss of strength.

Application
Because of its favourable price/quality ratio, polyester is the most common fibre used in filter media.

• Mining
• Cement Industry
• Iron and Steel Industry
• Aluminum and Non Ferrous Industry
• Ceramic Industry
• Quarrying
• Plastics
• Milk Powder
• Flour Mills (Applications under dry conditions up to temperatures of 150°C)

Specification

Composition		PET/PET scrim
Thickness (mm)		1.8
Air permeability (L/m2/s)		200-350
Tensile strength (N/5×20cm)	Warp	≥1100
	Weft	≥1300
Tensile elongation (%)	Warp	<35
	Weft	<40
Broken strength (N/m2)		450
Continuous wokring Tem.(°C)		≤130
Short time working Tem.(°C)		150
Anti-acid		Fair
Anti-alkali		Fair
Anti-abrasion		Excellent
The stability of water solution		Fair
Finishing treatment		Singeing,calendaring,heatting(Mirror treatment)

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