In the conveyor belt canvas most commonly used chemical fiber materials are polyester and nylon two categories. Among them, polyester and nylon are divided into different types.

Polyester: trade name for the polyester, the scientific name is poly-terephthalic acid diester, abbreviated as PET. Polyester has the advantage of good temperature resistance, deformation is small, easy to absorb moisture, high strength. Among them, the polyester according to its original wire performance is different, is divided into high-strength (ie, ordinary type), high modulus low shrinkage type, low shrinkage type, ultra low shrinkage type.

Nylon: trade name for the nylon, nylon is divided into nylon 6 and nylon 66 two types. Nylon 6 scientific name is polycaprolactam, abbreviated as PA6, nylon 66 scientific name is polyhexamethylene diamine, abbreviated as PA66. The general advantage of nylon is high strength, fatigue resistance is small, the density is small. But its shortcomings is high moisture regain, vulnerable to environmental impact.