Norafin CRYSTALEN®Technical textiles for filter media

Durable filter media for air, gases and liquids

Norafin CRYSTALEN_® stands for nonwovens to filter gases and liquids. We supply filter media that optimize the product lifecycle, the filtration efficiency and operating costs.

With our capability to process a variety of fibers (microfibers, PPS, aramids, polyimides...) and with our proprietary production process, our nonwovens show a consistent filter surface characterized by a higher number of finer pores and homogeneous cross-section leading to an increased filter performance.

Norafin CRYSTALEN_® stands for:

high quality filter media
stability
purity
durability

The latest measurement technologies enable us to perform the necessary filter tests in-house.

Performance Features of our Nonwovens:

homogeneity of the surface allows for an easier dedusting and increased filter efficiency
improved efficiency of spunlaced nonwovens with lower area densities compared to spunbonded nonwovens (weight range between 180 g/m² and 350 g/m²)
isotropic fiber orientation guarantees for high stability

high-temperature-resistant solutions through the use of high performance fibers
pleatable filter media
chemical and solvent resistance
FDA/EU10 2011 compatible filter media

Manufacturing of filter media through spunlace technology

Manufacturing Technologies

During spunlacing, a homogenous, intertwined textile structure is created by means of water jets.

Compared to the traditional needlepunch technology, the hydroentanglement offers benefits that enhance the filtration efficiency.

Spunlace Technology

no perforation of the nonwoven in the spunlacing process; fibers are not exposed to mechanical stresses
high material density, thus denser pores and better pore size distribution
high homogeneity of the surface > better dedusting, higher filtration efficiency
multi-layer technology > integration of metal scrims possible

Needlepunch Technology

higher pore size through strengthening process > higher weights are necessary to achieve the desired separation efficiency
some of the dust cake remains in the filter media after dedusting > no entire dedusting possible
limited choice of support scrims > no metal scrims possible