The reason why polypropylene BCF yarn is popular is basically famous for its carpet yarn. Polypropylene BCF yarn is the best choice for weaving cost-effective carpets.

How is polypropylene BCF yarn produced? There are three main methods:

Polypropylene BCF yarn can be made in several different processes. Briefly introduce the three process of making polypropylene BCF yarn:

The first one: one-step method: continuous spinning, stretching, deformation, winding process.

The second method: two-step method: spinning and drawing combined → twisting or spinning winding → twisting and drawing deformation.

The third type: three-step method: spinning and doffing → wire drawing → deformation.

The one-step process for the continuous production of polypropylene BCF yarn requires the simultaneous use of three screws of the same specification to extrude the melts of the different colors required for the three requirements, and then pass through the distribution pipe to the spinneret, allowing each filament to be made up of three different The color of the silk is assembled, and finally the polypropylene BCF filament is made by continuous tensile deformation.

The two-step or three-step process is basically similar in that a winding bobbin is set to one color, and then the three color bobbins are combined and stretched to form a polypropylene BCF yarn.

Although there are three kinds of processes in foreign countries, the two-step process is used more.