Oerlikon Nonwoven @ Index20: Manufacturing pr...
Oerlikon Nonwoven @ Index20

Manufacturing process for every nonwovens application

OSR spunmelt technology (source: Oerlikon Nonwoven)
OSR spunmelt technology (source: Oerlikon Nonwoven)

Market and customer-oriented system solutions for filtration, hygiene, medical, geotextile and other industrial applications will be the focus of Oerlikon Nonwoven, Neumünster/Germany, a brand of the Manmade Fibers Division of Oerlikon Management AG, Pfäffikon/Switzerland, at the Index in Geneva/Switzerland from October 19-22, 2021.
Sophisticated nonwovens for filtration, insulation and sorption applications can be simply and efficiently manufactured thanks to Oerlikon Nonwoven’s meltblown technology. The polymers used to produce the filter media and membranes are as diverse as their applications. The spectrum ranges from classical polyolefins (PP, PE), PET, PLA, PBT and PA all the way through to special plastics such as PPS and TPU. The ecuTEC+ electro-charging unit electrostatically charges filter media in order to further increase filter efficiency. It distinguishes itself through its extreme flexibility. Users can choose from numerous possible variations and hence set the optimum charge intensity for their respective filter applications.
Comprehensive spunbond portfolio
For technical nonwovens, the company offers systems with high production capacities and yields with simultaneously low energy consumption. To this end, for example, geotextiles made from polypropylene (PP) or polyester (PET) can be efficiently manufactured with area weights of up to 400 g/m² and filament titers of up to 9 dtex. Specialized spunbond processes for producing nonwovens substrates for roofing underlays (PP or PET spunbonds) and so-called bitumen roofing substrates (needled PET spunbonds) for bitumen roofing membranes are also on offer.
Furthermore, spunbond products are also becoming increasingly important in filtration applications – both as backing materials for filter media and as the filter media themselves. A flexible nonwovens structure permits the inclusion of customer-specific requirements for various functions. In particular Oerlikon Nonwoven’s many years of core-sheath bi-component experience enable the creation of completely new nonwovens structures and hence the incorporation of various functions in a single material. The bi-component spinning process permits various combined fiber cross-sections and also simultaneously different fibers to be produced from a single or various polymers. The spectrum ranges from classic core-sheath and side-by-side bi-component filaments, via splitable fibers all the way through to so-called mixed fibers.

Spunmelt systems for the hygiene and medical market
For manufacturing hygiene and medical nonwovens, the QSR (Quality Sized Right) technology offers a financially attractive solution for producing these highly diverse spunbond and meltblown composites (SSMMS, SMMS, SSS, etc.) in accordance with globally accepted standards. Through intensive collaboration and partnerships, close-knit quality assurance measures and extensive interaction with its technology partners, Oerlikon Nonwoven is able to equip this type of system with special features that enable producers to distinguish themselves within their respective markets with special nonwovens properties such as higher volumes, softness and customer-specific embossed patterns.
Phantom technology for wipes
With its Phantom platform, the company offers an alternative co-form technology for manufacturing various wet wipes from pulp and polymer fibers. Here, the spunmelt and airlaid processes are combined in a manner that ideally unites the properties of the starting materials. The material mix can comprise up to 90% cellulosic fibers. Alternatively, cotton or synthetic fibers can also be added. Compared to processes such as classical spunlace (hydroentangled carded nonwovens) produced to date, the Phantom technology offers ecological, performance and cost advantages. Dispensing with hydroentanglement renders subsequent drying of the material redundant. Product parameters, such as softness, tenacity, dirt absorption and liquid absorption, can be optimally set. The Phantom technology enables the manufacture of both flexible and absorbent structures and highly textured materials.
Airlaid technology for sustainable nonwovens
Pulp or cellulosic fibers as raw material for manufacturing nonwovens are currently virtually unrivaled with regard to sustainability and environmental compatibility. The Oerlikon Nonwoven airlaid process is the very good solution for processing this raw material into high-end products for a wide range of applications. Today, there is huge demand for manufacturing solutions for high-quality, lightweight airlaid nonwovens with economically attractive production speeds and system throughputs. Here, the patented formation process is used for homogeneous fiber laying and very good evenness even for nonwovens with low area weights. Furthermore, it permits the homogeneous mixing of the most diverse raw materials, including pulp, short and long staple natural and man-made fibers (up to 20 mm) and powders, as well as the utilization and combination of the most diverse mechanical, thermal and chemical tangling methods for creating the requisite product properties.

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