FDA Grade Micron Polypropylene Polyester Felt PP PE Filter Bag

Here are the factors to consider: Application, Particle size to be selected, Filter cloth working temperature, Filter cloth working pH value, Type of filter machine.

Particle size is the diameter of fine particles in the filtrate, determined by the choice of filter cloth.

pH is a measure of acidity, on a scale that ranges from 0 to 14, from strong acid (lower value) through neutral (7) to alkaline (higher value). The PH affects the choice of filter cloth material. For example, PP works across the range but PES is recommended only from PH=3 to PH = 9.

Fabrics are flat and soft pieces made up of slender and flexible objects that are crossed, knotted and connected. Mainly classification: Weaving: made up of yarns with cross-relationship. Knitting: made up of yarns with knot-relationship. Non-woven: made up of yarns and fibers with connection-relationship.

Yarns consist of staple fibers (e.g. cotton, polyester staple) or filaments(e.g. multifilaments, monofilaments). Spun yarns consist of staple fibers, which are held together by twisting the fibers during spinning. Monofilament consists of a single filament yarn, a fiber obtained by continuous spinning. Multifilament yarns consist of slender filaments and a bundle of slender monofilaments. (Bolian multifilaments 0 twist) Twisted yarns are two or more yarns twisted together into one twisted yarn.