In the jar often see friends discuss tents, bags fabric specifications. We sometimes say that 600D fabric than the 300D 210T setting, the fabric is more than 190T. This expression is not science. I learned to spin, and introduce textile small knowledge, to avoid being profiteers fraud.

D - > Dan Neal 's meaning, definition is very annoying, you never need to remember. Just remember one thing, D number increasing, the more coarse yarn. In particular, refers to the yarn, not about fabric.

T - > per unit area of fabric, the number of yarn. T number increasing, in a unit area of the yarn more.

To a piece of fabric, D and T at the same time must. Light with D or T is meaningless. As the figure below, it is hard to tell the 100D * 14T 300D * 6T is good or bad. A yarn with fine, but the fabric density. A coarse fabric yarn, but not dense.

This map is a diagram, in reality there is no 14T or 6T fabric