This paper introduces the application of polytetrafluoroethylene in bag filter bag. Polytetrafluoroethylene resin can be made of staple fiber, filament and sewing thread and biaxially oriented microporous membrane for filter media and filter bag; emulsion can also be used for the production of short fiber, filament and filter impregnation and coating sort out. With the […]

Dust bag from raw materials to finished products need a lot of processes, each process requires strict control, if the filter bag quality problems, and more in the bag of raw materials, bag diameter, bag length, pocket spring coil, sewing thread. Dust bag processing Note: Bag length is too long will cause the bottom of […]

Usually we refer to the sewing is to use the suture will be connected to the garment or in the garment surface embroidered with a certain decorative pattern. To achieve a perfect sewing effect, in addition to the requirements of the sewing machine itself is a good performance, skilled operators, but also requires stitches, sewing, […]

The main reasons for disconnection are: line tension is too high, the line fluff and needle overheating: 1, the right to lead by the thread on the lead over the suture; 2, check the line pieces are damaged or sharp edges; 3, suture tension should not be too high, 4, check the needle series is […]

Sewing equipment suture tension principle is mainly through a certain threading path and device to obtain tension after the formation of stitches, the use of this principle of tension, sewing equipment designers can find a reasonable form of threading, the operator can find the tension adjustment method. Sewing equipment suture tension principle has three main […]

There are many reasons for sewing machine jumper, the main lock with the needle is not good In the case of normal sewing, when you put down the sewing machine head, slowly turn the pulley, observe the needle rotation lock tip, line, ring with the three. Know the reason. Adjustment method: 1, adjust the height […]

Stitch type The formation of stitches without fabric, in the fabric, through the fabric and on the fabric and other means. Many types of sewing equipment and sewing equipment with a variety of forms can form a variety of stitch structure to adapt to different uses, so the seam name of the many complex changes. […]

In the field of sewing equipment, in addition to some of the equipment is sewing thread is used to sew one of the important clothes, it is used to knit clothing line, safety material has natural fiber, synthetic fiber and mixed these three. However, with the beginning of the country’s polyester industry, bathroom sewing thread […]

Suture is composed of two or more strands of twisted yarn, twisted after the suture fibers or strands were inclined, this tilt direction we call “twist”, twist to “S twist” and “Z twist”, also known as “left twist” and “right twist”. High-speed sewing machine should be used in the upper thread “S twist.” Otherwise, a […]

1. Classification and characteristics of sewing thread Sewing thread is the most commonly used classification of raw materials classification, including natural fiber sewing thread, synthetic fiber sewing thread and mixed sewing thread three categories. ⑴ natural fiber sewing thread A. Cotton sewing thread: cotton fiber as raw materials by refining bleaching, sizing, waxing and other […]