Melt Spinneret

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.

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.

A TIPS (Thermally Induced Phase Separation) membrane spinneret is the core component used for preparing polymer microporous membranes via the thermally induced phase separation method. Trusstech TIPS spinning spinneret is a hollow fiber spinning head specifically designed for the "high-temperature melt–cooling-induced porosity" route, used to produce microporous membranes from crystalline polymers such as PVDF, PP, and PE. Its structure and functions must simultaneously satisfy around-200°C melt sealing, rapid cooling induced pore formation, and controllable porosity. Its working principle relies on temperature changes to induce phase separation in a polymer solution, ultimately forming a membrane material with a microporous structure.

The rib-reinforced hollow fiber membrane spinneret, also called Core Fiber Reinforced Spinning Spinneret is a specialized spinneret assembly used for preparing hollow fiber membranes via non-solvent induced phase separation (NIPS). Based on conventional coaxial and multiphase spinneret structures, it adds a reinforcement filament introduction and positioning channel, which can stably introduce one or three high strength fine filaments (e.g., nylon/monofilament fishing line) into the membrane wall or at specific radial positions at the moment of fiber formation. The reinforcement filaments co-form with the membrane matrix in the coagulation bath, significantly improving tensile strength, anti-knotting, anti-brittle fracture performance, and resistance to operational stresses, without compromising the membrane's separation performance or hollow structure.