The sewing thread models in the industry are divided into: 20/2, 20/3, 40/2, 40/3, 60/2, 60/3 and so on. The thread is usually made of several strands of yarn twisted side by side. The 20, 40, 60, etc. in front of the sewing thread model refer to the yarn count. The yarn count can be […]
What is polyester fiber ?
Polyester fiber is an important kind of synthetic fiber with the simplest process and relatively cheap price.It has become more and more popular because of its high modulus, high strength, high elasticity, good shape retention and heat resistance. According to the different processing technology, it is divided into polyester staple fiber and polyester filament. Polyester […]
