Trustech: PET and PP Material Processing Insights and Applications

Shanghai TRUSTECH Technology Development Co., Ltd has made it clear that manufacturing reliability is at the core of market success by publishing an assessment of mechanical benchmarks required for sustainable membrane fabrication. Acclaimed as China Top Durable Flat Sheet Membrane Manufacturing Company

China TRUSTECH today announced that it has been granted a patent for an enhanced hollow-fiber membrane spinneret that solves longstanding mechanical-strength limitations in conventional hollow fibers. By introducing an integrated braided-tube channel and precision fluid-control architecture, the invention provides critical process capability for producing braided-tube–reinforced hollow-fiber membranes used in high-pressure water treatment and specialty separations. As a China leading membrane spinning machine and hollow fiber membrane spinneret manufacture, TRUSTECH continues to advance the state of the art with production-ready, modular designs.

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.

Shanghai TRUSTECH Technology Development Co., Ltd. responded to global environmental requirements for membrane durability and filter efficiency with their latest advancements in membrane fabrication at 19th IE Expo Shanghai (China Environmental Exhibition).

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.

Selecting a blood dialysis membrane spinneret for NIPS-based production demands uncompromising control over precision, biocompatibility, and stability. In hemodialysis applications, the spinneret governs lumen formation, wall-thickness uniformity, and early-phase demixing, which together determine uremic-toxin clearance, ultrafiltration behavior, and hemocompatibility. The right choice aligns orifice geometry, wetted materials, and flow-channel design with the polymer/solvent/nonsolvent system and the plant’s multi-hole uniformity requirements.

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.

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?

Hollow fiber production technology drives water treatment/pharma innovation with improved efficiency. Leading global firms boost output, yet face quality consistency challenges. Balancing rapid innovation with environmental sustainability is key for future growth.

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.