Company Advantages
· Trustech spinneret for fiber spinning is manufactured utilizing superior quality raw material and latest technology.
· A strict quality assurance system has been established to ensure the quality of the product.
· The product is rather economical and is now widely used by people from various fields.
Working Principle
Polymers (e.g., PET, PA, PP) are heated in an extruder to a molten, viscous state.
The melt is precisely metered and fed into the spinneret assembly. Internal distribution channels are designed to deliver the melt uniformly and steadily to each capillary.
Under high pressure, the melt is forced through extremely small capillaries typically 0.28–1.5 mm in diameter. This imposes strong shear, orienting polymer chains to some extent along the flow direction.
Upon exiting the capillary, elastic recovery causes the filament diameter to expand slightly.
Trustech Spinneret Key Design Elements Trustech
These parameters are fundamental to spinneret design and directly determine the membrane's final performance
|
Parameter |
Description |
Influence on membrane performance |
| Flow channel (R) | The runner for transporting, buffering, and distributing the dope and bore fluids. | Different structures should be optimized according to material properties, viscosity, spinneret orifice size, and hole quantities to achieve optimal spinning performance. |
| Annular gap width (d) | The gap (thickness) of the dope flow channel. | It primarily determines the hollow fiber wall thickness. Narrower gaps yield thinner walls and lower mass-transfer resistance, but may reduce mechanical strength. |
| Bore tube outer diameter (d₁) | The outer diameter of the central tube forming the inner wall of the annular gap. | Together with the outer sleeve inner diameter, it defines the annular gap width. |
| Outer sleeve inner diameter (d₂) | The inner diameter of the spinneret outer sleeve forming the outer wall of the annular gap. | Together with the bore tube outer diameter, it defines the annular gap width and the fiber outer diameter. |
| Central tube inner diameter (d₃) | The diameter of the bore fluid channel. | It primarily determines the fiber inner diameter. The inner diameter affects membrane module packing density and the pressure drop of fluid inside the fiber. |
| Length-to-gap ratio (L/d) | The ratio of the flow channel length (L) to the annular gap width (d). | It affects spinning stability. Designing an appropriate L/d according to material properties and process conditions helps stabilize flow and eliminate entry effects, resulting in more uniform extruded fibers membrane. |
| Concentricity | The coaxial alignment among the dope layer inner diameter at the spinneret outlet and the bore tube inner and outer diameters. | It affects wall-thickness uniformity and bubble point pressure. |
| Extrusion face geometry | The foremost geometry of the spinneret, such as flat or micro-tapered. | It influences draw-down and deformation after extrusion, especially important for the air-gap segment in dry-wet spinning. |
The Advantages of Trustech TIPS Spinneret
Product Parameters
|
Brand |
Trustech |
Application |
TIPS/Melting |
| Material | SUS304, SUS630, SUS316L | Holes/Pack | 1-32 holes |
| Dope inlet Thread | G1/8, BSP1/8, NPT1/8 | Minimum membrane OD | 0.20mm |
| Bore liquid inlet thread | G1/8, BSP1/8, NPT1/8 | Customize thread | Yes |
| Precision | ±0.002mm | Concentricity | 0.003mm |
| Design | Conventional design/ FCT design | Connections | Standard |
| Viscosity application | 1000-500000cp | Roughness | Ra 0.4-0.8 |
| Solvent | No | Temperature | 260℃ |
Suitable Materials
PET(Polyethylene Terephthalate), PP (Polypropylene), PA6( Polyamide 6 ), PE (Polyethylene), PLA (Polylactide),TPU (Thermoplastic Polyurethane), PPS (Polyphenylene Sulfide), PTT (Polytrimethylene Terephthalate), PBT (Polybutylene Terephthalate), PVA (Polyvinyl Alcohol ), PAN (Polyacrylonitrile ), PEEK (Polyether Ether Ketone), PVDF-HFP( Poly vinylidene fluoride-co-hexafluoropropylene)
Common Specifications
| No. | General Specification | Application | Design Type | Type |
| 1 | 1.4/0.8/0.6 | TIPS/Melting | Conventional design/ FCT design | Single-aperture/ Multi-aperture |
| 2 | 1.5/0.9/0.6 | TIPS/Melting | Conventional design/ FCT design | Single-aperture/ Multi-aperture |
| 3 | 1.6/1.0/0.6 | TIPS/Melting | Conventional design/ FCT design | Single-aperture/ Multi-aperture |
| 4 | 1.8/1.1/0.5 | TIPS/Melting | Conventional design/ FCT design | Single-aperture/ Multi-aperture |
| 5 | 1.9/1.2/0.6 | TIPS/Melting | Conventional design/ FCT design | Single-aperture/ Multi-aperture |
| 6 | 2.0/1.0/0.7 | TIPS/Melting | Conventional design/ FCT design | Single-aperture/ Multi-aperture |
| 7 | 3.1/1.8/1.5 | TIPS/Melting | Conventional design/ FCT design | Single-aperture/ Multi-aperture |
| 8 | 3.1/1.8/1.5 | TIPS/Melting | Conventional design/ FCT design | Single-aperture/ Multi-aperture |
| 9 | 3.2/2.2/1.8 | TIPS/Melting | Conventional design/ FCT design | Single-aperture/ Multi-aperture |
| 10 | 3.3/1.1/0.9 | TIPS/Melting | Conventional design/ FCT design | Single-aperture/ Multi-aperture |
| 11 | 3.4/2.4/2.0 | TIPS/Melting | Conventional design/ FCT design | Single-aperture/ Multi-aperture |
Customer Membrane Examples
FAQ
Company Features
· As a domestic influential enterprise, Shanghai Trustech Technology Development Co., Ltd. has achieved a substantial improvement in the developing and manufacturing of spinneret for fiber spinning.
· There is a strict and complete quality control system to ensure quality of spinneret for fiber spinning.
· Under the monitoring of new media and activist groups, the company strives to minimize environmental impacts and reduce resources waste. These movements help it to establish a good business reputation in society. Call now!
Product Details
With a focus on product quality, Trustech strives for quality excellence in the production of spinneret for fiber spinning.
Product Comparison
The spinneret for fiber spinning produced by Trustech stands out in many similar products. And the specific advantages are as follows.
Enterprise Advantages
We have an elite team of professional talents with great overall strength and technical strength, which has laid a solid foundation to improve our comprehensive product strength.
Owning a perfect service network, our company provides the user with professional, standardized and diversified service. Besides, we can meet the customer requirements with first-class pre-sale and after-sale service.
To be a well-known enterprise in China, Trustech implements the development concept of 'innovation, coordination, green, openness, and sharing' proposed by the central government, and adheres to the important concept of 'keeping the new and the right way'.
Established in our company has built a production and research and development center with advanced technology and complete supporting facilities. Based on that, we are able to provide customers with more high-quality products.
Spinning Machine,Hollow Fiber Spinneret,Gear Metering Pump's export volume increases greatly thanks to the optimization of the export environment. The products are mainly sold to some countries and regions in Southeast Asia, South America, and Africa.
About Trustech