Rollstock Membrane

Ideally suited for in-house and large-scale manufacturing integration, Oxyphen’s track-etched rollstock membrane – which can be laminated, unlaminated, or fiber-based – is supplied from high-quality polyester (PET) or polycarbonate (PC) raw materials. Depending on the application’s requirements, the membranes can be treated with hydrophilic, hydrophobic, or oleophobic properties and converted from 310mm width bobbin down to 8mm slit rolls. 

Oxyphen offers two types of track-etched membranes – unlaminated Unique-Mem and laminated RoTrac membranes. Both are available in rollstock format. Unlaminated Unique-Mem® track-etched membranes are characterized by cylindrical shaped pores penetrating the membrane in different angles. They consist of a single unsupported membrane layer which can be transparent or translucent depending on pore density. Laminated RoTrac® membranes are Unique-Mem® membrane technologies, available as either hydrophobic or hydrophilic, that are supported with non-woven material (PP or PET) to create a more robust membrane.

The porous structure of Oxyphen track-etched membranes can be adjusted in pore size and pore density depending on the desired filtration efficiency, flow rate or water entry pressure needed for a particular application. The membranes can be sealed via heat or ultrasonic welding onto most plastic housings, preferably in a punch-and-seal procedure.