Type: PP, PT, PET Material: Polyester fiber Usage: Heatseal tea bag Filtration Width: as required Thickness: 0.12-0.15mm Color: White Application: Heatseal tea bag Filtration Product Name: Polyester fiber Basic weight: 18gsm Sample: Free sample Size: 1 m * 100 m Fiber: Polyester Air Permeability: 3500L/m2 * s Retention of particles (UM): 45-55 Performance: Anti-static, waterproof, acid resistant, etc. Show More