Melt spinning are chemical fiber spinning methods which are divided into copolymerization, blend spinning core spinning and composite skin methods. The mainly solution of the method is to heat the polymer melt and squeeze out through the orifice,then cooling and solidifying in the air to form fibers.The polymer used in melt spinning, must be able to melt into a viscous flow and does not occur significant decomposition.Changes of fiber forming polymer mainly through changes in the geometry and physical state.

The X-ray detectable yarn plants that made by Qingdao Bright Moon Biomedical Medicals Co .,Ltd are using melt spinning. The main process of melt spinning contains melt extrusion, filter, static mixing, metering, melt distribution, extrusion and cooling.