KI erstelltes Foto Hohlfasermembran

Fiber and film industry

Filtration of polymer solutions in hollow fiber membrane production

Production of hollow fiber membranes

Gel-like byproducts in the polymer solution, in particular, lead to defects and fiber breaks during the manufacture of hollow-fiber membranes.

These gel particles must be efficiently separated using the right filter system, with minimal losses.

Gel particles impair product quality and process efficiency.

Regardless of whether the end product is intended for gas or liquid separation, or which solvent is used, manufacturers face the challenge of insufficient separation performance when using simple filter systems, such as stainless steel filter cartridges.

As operating time increases, gel particles in particular can penetrate the filter medium and enter the spinning process. The consequences include quality defects, fiber breaks, increased scrap rates, and unplanned production stoppages.

Maximum gel separation for consistent membrane quality.

Reliable filtration consistently removes gel particles from the polymer solution and ensures stable process conditions.

This results in consistently high product quality, reduced scrap rates, and greater process reliability in hollow-fiber membrane production.

At the same time, maintenance requirements and production downtime are minimized.

The solution: LENZING ViscoFil

Fully automatic filtration for demanding polymer solutions

10 μmFilter fineness
up to 2 yearsFilter material life time

Simplified process diagram for installing a LENZING ViscoFil.

Filtration of polymer solutions in hollow fiber membrane production

Advantages of using a LENZING ViscoFil system.

High filter fineness

Efficient gel removal thanks to deep-penetrating stainless steel fiber fleece.

Efficient backwash

The backwash mechanism enables continuous operation for several months.

Cost savings

Lower maintenance and downtime costs due to the long service life of the filter media.

LENZING ViscoFil

The LENZING ViscoFil system was developed for separating fine particles and soft gel particles from highly viscous fluids.

Its unique backwash mechanism enables the use of depth filter material with minimal backwash volumes and continuous filtration.

Suitable for very high viscous fluids

Filter fineness down to 3 μm

Filtration of gel particles

Completely closed system

Mock-up Foto einer geöffneten Broschüre

Case study: Filtration of polymer solutions in hollow fiber membrane production

Would you like to learn more about the filtration of polymer solutions in hollow fiber membrane production?

The enclosed case study describes the installation of a LENZING ViscoFil system in this application.

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Are you looking for sustainable solid-liquid filtration solutions for your individual process? Our experienced team looks forward to supporting you with your project.

Team Lenzing Filtration

Team Lenzing Filtration

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+43 7672 701 3479

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