Hollow Fiber Spinneret

Thermally Induced Phase Separation (TIPS) spinneret, also known as a TIPS membrane spinning spinneret, is a critical precision component used in TIPS-based membrane and polymer fiber manufacturing. It precisely delivers and shapes a heated polymer–diluent mixture (such as PP, PE, PVDF, or PES blends dissolved in high-boiling-point diluents) through micro-engineered orifices and annular flow channels under controlled high-temperature and pressure conditions, enabling the continuous extrusion of uniform filaments or hollow fibers. The outlet geometries typically range from several tens of micrometers to several millimeters, depending on the required lumen diameter, membrane wall thickness, and balance between permeability and mechanical strength. After extrusion, controlled cooling or quenching induces phase separation and solidification, forming the desired porous membrane structure.

Dual-layer dope spinneret, also known as a composite membrane spinneret, is a critical forming component in membrane separation and filtration manufacturing. Through a single co-extrusion process, it precisely combines two or more functional dopes into a designed multilayer structure and forms them into a layered membrane through micron-scale precision orifices or slots. Its primary function is to achieve stable, accurate, and controllable distribution, stacking, and shaping of multiple fluid streams within a microscale flow channel system.

Melt Extrusion Spinneret, also called melt Spinning Spinnerette is a core precision component in melt-spinning processes. It forces high temperature polymer melts (e.g., PET polyester, PP polypropylene, PA nylon, PI polyimide) through micro-fabricated orifices under high pressure,typically with diameters from tens of micrometers up to a few millimeters,to uniformly extrude continuous filaments, fibers, or films. Its design must address three key challenges: uniform distribution of the high temperature melt, precise shaping and control, and resistance to corrosion and wear.

This Spinning Spinneret can use as NIPS method, TIPS method, and Melt Extrusion. Melt Extrusion Spinneret, also called melt Spinning Spinnerette is a core precision component in melt-spinning processes. It forces high temperature polymer melts (e.g., PET polyester, PP polypropylene, PA nylon, PI polyimide) through micro-fabricated orifices under high pressure,typically with diameters from tens of micrometers up to a few millimeters,to uniformly extrude continuous filaments, fibers, or films. Its design must address three key challenges: uniform distribution of the high temperature melt, precise shaping and control, and resistance to corrosion and wear.

Thermally Induced Phase Separation (TIPS) spinneret—also called a TIPS spinning spinnerette—is a core precision component in TIPS membrane and fiber production. It forces a hot polymer–diluent solution (e.g., PP, PE, PVDF, PES blends in high-boiling diluents) through micro‑fabricated orifices and annular channels under elevated temperature and pressure to uniformly extrude continuous filaments or hollow fibers. Outlet features typically span from tens of micrometers to a few millimeters, tailored to target lumen size, wall thickness, and permeability–strength requirements. Immediately downstream, controlled cooling/quenches trigger phase separation and solidification, establishing the membrane’s pore structure.