Alfa Breathable Films are high-performance polymer films which are designed and manufactured to meet demanding requirements or solve complex problems in various applications. Monolithic films that are impervious to liquids (water) but permeable to gases (water vapor). Certain grades are inherently breathable when extruded alone or in combination with otherwise non-breathable resins. Through very careful choice of proprietary polyether block chemistry within the polymer backbone, a continuous molecular channel may be achieved that allows physical transport of water vapor molecules while simultaneously blocking any transport of liquid water. In extruding both monolithic and micro-porous polyurethane films
ADVANTAGES OF ALFA BREATHABLE FILMS
Unlike perforated or microporous films, monolithic films made from polymers do not rely on vapor transport through holes or voids (which enables physical transport in both directions).
Advantages of monolithic films include:
• Adjustable Moisture Vapor Transmission Rate (MVTR)
• No loss of performance over time (no plugging)
• Good tear resistance
• Excellent virus, liquid & odor barrier
• High water entry pressure
•Free of fluorinated additives
The Moisture Vapor Transmission Rate (MVTR) of the final film may be finely tuned by either varying the thickness or by the level of specific polymer within the host material (usually functional polyolefin).
Sustainable Films
Through our ongoing product development, we have taken several measures to ensure our films and production processes are sustainable. Our films are now thinner and stronger, while maintaining all their required technical properties. We continue to increase the amount of renewable and recycled raw material used in our films where ever it is technically possible and is of benefit to the customer.
