Nylon chip
Including raw material testing, ingredients testing, casual inspection during the production process.
Quantity index of Chips:relative viscosity (N.s/m2), moisture(ppm), amino(mmol/kg), Ti02 (%),oxidation(%).
Nylon yarn
Filtering is to remove the tail of the yarn surface.Appearance inspection, a preliminary screening of the yarn of the balance roorto check whether the label information is in accordance with the yarn.Testing items: fuzziness, coil, knock over, color, scratch, oil, molding, weight,paper tube.
Physical inspection
Test items: Denier, breaking strength, elongation, yarn irregularity, OPU%,BWS%,network, coefficient of variation(CV%)Uster testing (Testing machine: Uster Tester 5-C800)
Spandex
For spandex, we have appearance inspection and laboratory inspection.Appearance inspection the same to those testing steps of naylon mentionedabove. The scope of laboratory test is as follows:
