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1. The strength of PBT fiber is 30.91 ~ 35.32cN/ Tex, the elongation is 30% ~ 60%, the melting point is 223ºC, the crystallization speed is 10 times faster than polyethylene terephthalate, and it has excellent elongation elasticity recovery rate and soft and easy dyeing characteristics.
2. The fiber made from PBT has some properties common to polyester fiber. However, due to the long flexible part on the basic chain link of PBT macromolecule, the melting point and glass transition temperature of PBT fiber are lower than those of ordinary polyester fiber, leading to the improvement of the flexibility and elasticity of fiber macromolecule chain.
3, PBT fiber has good durability, dimensional stability and good elasticity, and elasticity is not affected by humidity.
4. PBT fiber and its products have soft feel, good moisture absorption, abrasion resistance and fiber crimp, excellent tensile elasticity and compression elasticity, and its elastic recovery rate is better than polyester.PBT fiber has special elasticity under wet and dry conditions, and its elasticity is not affected by the change of ambient temperature.
5. With good dyeing performance, ordinary disperse dyes can be used for boiling at ordinary pressure without carrier.The dyed fiber has bright color, good color fastness and chlorine resistance.
6. Excellent chemical resistance, light resistance and heat resistance.
1. The strength of PBT fiber is 30.91 ~ 35.32cN/ Tex, the elongation is 30% ~ 60%, the melting point is 223ºC, the crystallization speed is 10 times faster than polyethylene terephthalate, and it has excellent elongation elasticity recovery rate and soft and easy dyeing characteristics.
2. The fiber made from PBT has some properties common to polyester fiber. However, due to the long flexible part on the basic chain link of PBT macromolecule, the melting point and glass transition temperature of PBT fiber are lower than those of ordinary polyester fiber, leading to the improvement of the flexibility and elasticity of fiber macromolecule chain.
3, PBT fiber has good durability, dimensional stability and good elasticity, and elasticity is not affected by humidity.
4. PBT fiber and its products have soft feel, good moisture absorption, abrasion resistance and fiber crimp, excellent tensile elasticity and compression elasticity, and its elastic recovery rate is better than polyester.PBT fiber has special elasticity under wet and dry conditions, and its elasticity is not affected by the change of ambient temperature.
5. With good dyeing performance, ordinary disperse dyes can be used for boiling at ordinary pressure without carrier.The dyed fiber has bright color, good color fastness and chlorine resistance.
6. Excellent chemical resistance, light resistance and heat resistance.