What is the yarn inside the textile industry is what kind of yarn?
Direct dye can be stained, is the natural fiber. And then go to the performance of the fiber, the dissolution test, to come to a certain type.
For example, like a piece of cloth, first with the experience of the general estimate of the possible combination of latitude and longitude, and then open to take the yarn to do the test, if the dispersion of dye can be colored, that is synthetic fiber
Touch and see only the consumer's method, the textile industry is not by touch and it seems to distinguish the type of yarn, it is to use the test means.
As for the thickness of the yarn, is to rely on weighing to determine. And the twist of the yarn, measured with a twist meter
