BB Engineering introduced ValuePack, its next-generation spinning pack solution, at the ITM Exhibition held in Istanbul. Drawing attention with its patented design, the system combines two-stage filtration technology within a single spinning pack, aiming to provide higher process reliability and product quality, particularly in applications where recycled raw materials are processed.
Spinning packs used in synthetic fiber production are among the critical components of the process in terms of melt filtration and homogenization. In conventional systems, either metal powder-based sand packs or filter candles are preferred for filtration. While both solutions meet different production requirements, they also come with certain performance limitations. While systems using metal sand are preferred particularly in processes where virgin raw materials are processed due to their high melt homogeneity, filter candles stand out in recycling applications thanks to their larger filtration surface area. However, the advantages provided by the larger filtration area can, in some cases, lead to adverse effects on homogeneity due to lower flow rates and shear effects.
Combining Two Different Technologies in a Single Structure
Developed by BB Engineering, ValuePack brings together the advantages of the two existing approaches within the same system. In the first stage, the melt is passed through a filter cartridge with a large surface area and filtered down to 15 microns. In the second stage, the material is directed into the metal sand section, where it is subjected to homogenization and shear effects. Thanks to this structure developed by the company, higher homogeneity in temperature and viscosity distribution is achieved, while spinning performance is also improved. As a result, more stable production conditions and higher yarn quality can be obtained.
Aiming to Increase Quality in Recycled Raw Materials
It is stated that the advantages offered by ValuePack become particularly evident in recycling processes. While impurities and process variations encountered in recycled raw materials make filtration performance critical, the two-stage structure enables more effective cleaning and a more balanced melt flow. In this way, manufacturers can obtain higher-quality yarns and intermediate products from recycled raw materials while also increasing process reliability in applications with demanding quality requirements.
Pressure-Independent Sealing System
One of the prominent features of ValuePack is its pressure-independent seal design. While this structure reduces the risk of leakage that may occasionally occur in self-sealing systems, it offers manufacturers a wider process operating window. The ability to adapt the new system to existing spinning lines is also considered an important investment advantage. Although it has a slightly longer structure due to its design, ValuePack can be easily integrated into existing systems.
Introduced at ITM with VR Technology
At the ITM Exhibition, BB Engineering presented the ValuePack technology not only as a physical product but also through a virtual reality application. Thanks to the VR animation showcased at the exhibition, visitors had the opportunity to examine the operating principle of the filtration system and its functions within the process in detail.
Focusing on Synthetic Fiber and Recycling Technologies
Founded in 1997, BB Engineering is a Germany-based machinery manufacturer developing extrusion, mixing and filtration technologies, as well as complete spinning lines, air-texturing systems and recycling solutions. While the company has attracted attention in recent years with its investments in recycling technologies, the ValuePack solution is regarded as a new step in its efforts toward achieving higher quality and more efficient recycling processes in synthetic fiber production.
