Pbt Swimsuit Fabric

A1: This is oil odor or resin odor, which may come from three sources:

● spin finish oil;

● setting resin;

● dyeing auxiliaries.

Solution: Adequate ventilation and air drying can greatly reduce the odor.

A2: This relates to color fastness. For nylon-spandex and polyester-spandex fabrics, dark and bright colors in particular tend to have lower wet rubbing and perspiration fastness. We use mid-to-high grade dyes, with color fastness generally reaching Grade 3 to 4 (the national standard pass mark is Grade 3). If you require superior color fastness, please specify your requirements when placing fabric orders.

A3: These are generally known as spandex whitening, warp streaks or weft bars. Spandex whitening occurs because spandex and nylon/polyester have different dye uptake rates, which becomes visible under certain lighting. Warp streaks and weft bars result from uneven yarn quality or weaving defects.

Please provide photos and the corresponding roll numbers if you encounter such issues, and we will conduct an immediate inspection. For recurring defects, we will file quality claims in accordance with quality inspection standards.