Detailed description
If the last shipment had edges fraying, a width that measured wide on arrival, or a peel that read low in incoming inspection, the cause is almost always in one of the four items described on this page rather than in the price.
What the buyer is choosing
Colour is a specification, not a preference. Dyed lots are matched to a retained standard under D65 light, and a black that matches in an office can read green in daylight. If the colour is customer-facing, approve a physical swatch and keep it, because a photograph is not a standard.
The material question
The fibre is nylon (polyamide). It takes dye deeply, which is why the colour range is wide and why the colour holds through washing at 40 degrees. Its weakness is moisture regain: a nylon roll absorbs water in transit, measures wide on arrival and settles back over about a week, so allow for it in incoming inspection rather than rejecting the lot.
How it is quoted
Samples ship in seven days, cut to the width you ask for, with the lot report from the run they came from. Bulk runs fifteen to twenty-five days after sample approval, EXW Xiamen, FOB or CIF as you prefer.
What ships with the goods
Colour is checked against the retained standard under D65 on every lot, and weft skew, oil marks and hook damage are inspected across the full roll rather than on a cut sample.
Checking it on arrival
Weigh a metre of the roll. Weight per metre is the fastest proxy for yarn density, and it is the number that shifts quietly when a supplier tries to hold a price through a yarn increase.
If you are comparing suppliers, send the other quotes with the specifications attached and we will tell you which line item is the one that will move on the invoice.