First, we will understand the thickness of the yarn. The international indicators used to represent yarn fineness are mainly: number of British system (s), metric number, special number, Dan number, etc.
D is Daniel number, which is one of the ways to express the yarn thickness and fineness, indicating the weight of high elastic nylon per 9000 meters. 70D means that the gram weight of every 9000 meters Nylon high elastic silk is 70 grams. 140d indicates that the weight of Nylon high elastic silk per 9000 meters is 140 G. The lighter the weight of Nylon high elastic silk under the same length, the finer the thickness, and vice versa.
