Trustech: PET and PP Material Processing Insights and Applications

China TRUSTECH has been granted an invention patent for a "Modular Multi Orifice Hollow Fiber Membrane Spinneret Head, " marking a new milestone in scalable, serviceable, and specification compatible spinneret architecture for hollow fiber membrane production. As a China leading membrane spinning machine and hollow fiber membrane spinneret manufacture, TRUSTECH is advancing the industry with modular engineering that enables linear orifice expansion, separated maintenance, and cross spec compatibility—all without replacing the entire spinneret assembly.

As international demand for high-performance separation media continues to increase, Shanghai Trustech Technology Development Co. Ltd has unveiled several technical refinements designed to increase structural stability of polymer film production.

In the field of hollow fiber membrane spinneret heads, Trustech has received another piece of good news: its independently developed "Modular Multi Orifice Hollow Fiber Membrane Spinneret Head" has been granted a national invention patent (Authorization Announcement No. CN104894663B). With its digitized, modular, and flexible design innovations, this patented technology injects strong momentum into the industry's development.

In fields such as environmentally friendly water treatment, medical hemodialysis membranes, and gas separation membranes, hollow fiber membranes serve as a core component, and their performance and production efficiency directly affect the quality of industry development. At this key link in the value chain, Trustech, through continuous technological innovation and a strong sense of industry responsibility, has become a leader in China's hollow fiber membrane spinneret (spinneret plate) sector. The company has not only driven iterative upgrades in product performance, but also taken the lead in drafting industry standards, injecting strong momentum into the sector's standardized development.

Hollow fiber membranes have really been making waves in the filtration world lately. Companies like Memstar and Koch Membrane Systems are definitely leading the charge with this tech. But here’s the thing—how well these membranes work really depends a lot on the manufacturing process used during spinning. So, it’s a good question: what production methods are actually best suited for making hollow fiber membranes?

Ultrafiltration hollow fiber membranes owe much of their performance to how they are formed at the spinneret. In NIPS (non-solvent induced phase separation) and TIPS (thermally induced phase separation) lines, the spinneret is the control point that converts rheology, flow balance, and interfacial kinetics into pore architecture and mechanical integrity. Choosing a production route is not about perfection; it is about matching polymer system, pore targets, and throughput to a spinneret and line design that deliver stable, reproducible fibers.

In ultrafiltration hollow fiber production via NIPS and TIPS, process adjustment is ultimately about making every spinneret hole “see” the same force, temperature, and flow history.

China TRUSTECH announced that it has been granted a patent for a modular multi orifice hollow fiber membrane spinning device that overcomes long standing challenges of uneven core/shell distribution and difficult maintenance in legacy systems.

Hollow fiber membrane spinning is a critical step across many manufacturing processes, especially in water purification, biotechnology, and gas separation. This underscores the importance of understanding which production methods actually use hollow fiber membranes.

In NIPS and TIPS ultrafiltration hollow fiber production, the “nozzle” is the spinneret plate: concentric inner (bore) and outer (dope) flow paths must be resistance-matched to co-extrude a stable lumen and selective skin. Flow resistance design, verification, and on-line control determine inter-hole uniformity, OD/ID stability, and morphology reproducibility.