Diner (D) is also called "denier" or Denier. It refers to the number of grams of weight of 9000 meters of yarn or fiber under the public moisture regain rate.

For example, when the weight of a 9,000-meter-long fiber is one gram, it is called 1D. For example, if a fiber with a length of 9000 meters weighs 1680 grams, its fineness is expressed as 1680D. When the specific gravity is constant, the larger the gram weight (number), the thicker the yarn or fiber; conversely, the smaller the gram weight (number), the finer the fiber.

Extended information

Calculation formula:

Td=9000×GK/L; where: Td—denier of fiber (denier); L—fiber The length (m); GK—the mass (g) of the fiber at a given moisture regain.

The conversion relationship formula between it and another legal unit of measurement, tex (tex), is: 9tex=1D.

Now assume that a fiber is 9000m long and weighs 9 grams, which can be expressed as 9D; now cut the fiber into nine sections, each section is 1000m, and each section weighs 1 gram, which is 1tex. The fiber thickness is still the same, so 1tex=D/9.

Reference materials

Baidu Encyclopedia - Fineness