The polypropylene BCF is more known: polypropylene expand yarn, polypropylene carpet yarn, rich variety, good expandment, uniform network, complete color variety, can be customized according to customer requirements. The company's polypropylene bulk yarn can be used for both carpet, automotive mat, and can also be widely used in various decorative fabrics, weaving, fabric, door and windows, etc. The polypropylene expansion yarn has been plucking, and the strip is full, the elasticity is good, suitable for cutting cassing, and can get the effect of nylon carpets.
Today, let's take a look at several process flows of polypropylene BCF.
Three process flows for making polypropylene BCFs:
The first: one step: continuous spinning, stretching, deformation, winding process
Second: two-step method: spinning stretching combined → tie filament or spinning winding → tile stretching deformation
Third type: three-step method: spinning drum → tie stretch → deformed
A process requirement for continuous production of polypropylene BCF wire: Simultaneous use of three specifications can be squeezed out of the melt of different colors of three requirements, and then reach the spinneret after the distribution tube reaches the spinneret, allowing each filament from three different different The color of the color is formed, and finally thepolypropylene BCFis made by continuous stretching deformation.
The two-step method or the three-step production process is substantially similar, that is, one color is to be combined, and then the bobbins of the three colors are combined, and the stretch is deformed into apolypropylene BCF wire.
These three processes have applications abroad, but mainly in two-step approach.