Micro polypropylene needle felt is a specialized filter media engineered with ultra-fine polypropylene fibers to enhance filtration precision while maintaining excellent chemical resistance. It is ideal for processes requiring clean and non-reactive environments such as food production, pharmaceuticals, and fine chemical applications. PP felt resists acids, alkalis, and moisture, and its non-toxic nature ensures compliance with hygiene-sensitive standards. Its fine fiber network effectively captures sub-micron particles, making it a preferred choice for industries targeting both purity and reliability in filtration.
Micro Polypropylene needle felt
Our factory selects 100D/160 and 500D/120 mixed Micro-polypropylene fiber from Dupont Teijin fiber Co., Ltd, then composited with basalt fiber adopting advanced international standard and the equipments to produce micro PP needle punched filter felt. The past finished treatment includes singeing, calendaring, adding the basalt coating treatment.
Features:
Smooth surface, more defined pore size and good air permeability
Low temperature resistance ( 88-110 ℃)
Excellent resistant to hydrolysis, acids and alkalies.
Lower fiber release, Lower density,High mechanical characteristics
Applications:
Galvanic industry and Chemical industry
Prefiltering solvents and acids
Prefilter to extend final filter life
Final filter for noncritical filtrations
Liquid-solid seperation with strong acid and alkaline conditions filter press
Air filtration under 100℃
Specification
Compositions | Super-fine PP fiber | |
Weight (g/ m2) | 800 | |
Thickness (mm) | 2.2 | |
Air permeability (L/m2/s) | 20~50 | |
Tensile strength | wrap | >1700 |
weft | >1900 | |
Tensile Elongation (%) | wrap | <50 |
weft | <55 | |
Broken strength | 2.75 | |
Continuous working temperature(℃) | 90 | |
Short time Working temperature(℃) | 110 | |
Anti-acid | Excellent | |
Anti-alkali | Excellent | |
Anti-abrasion | Excellent | |
The stability of water solution | well | |
Finishing treatment | Singeing and calendering | |
