High Uniformity Spandex
It is suitable for high-grade warp and weft knitting products with high needles and high requirements on departmental organization and flatness.
Test condition：first pre-form at 185℃ for 1min, then dye at 130℃ for 40min, then form at 190℃ for 1min
Stability of unwinding stress of spandex
Excellent performance of chlorine resistance
Chlorine resistance test conditions：soak in sodium hypochlorite solution at 50℃, PH6.0, concentration 0.52g/L for 30min, take out and measure the breaking strength(DS)of spandex, chlorine resistance(%)=DS(after chlorine bleaching)/DS(original)*100%
High-grade warp and weft knitted fabric