An innovation in radio frequency (RF) plastics welding now enables manufacturers of medical bags and pouches to obtain the clarity, elasticity and performance advantages of Medalist® medical elastomers while providing a safe and fully compliant alternative to PVC, thermoplastic polyurethane (TPU), or natural rubber latex.
Teknor Apex Company and Genesis Plastics Welding are jointly announcing this breakthrough at MD&M East, where ecoGenesis™ RF plastics welded samples of fluid drainage and storage bags from Medalist-based film are on displayed at the exhibits of Genesis and Teknor Apex.
While conventional RF plastics welding and heat sealing works well with such polymers as PVC and TPU, low dielectric loss materials such as Medalist elastomers from Teknor Apex have until now not been bondable with this process. EcoGenesis RF plastics welding technology enables film produced from a Medalist elastomer to form strong permanent bonds with itself as well as with polypropylene and similar polymers.
This new capability for joining and assembly makes available to manufacturers of medical fluid delivery, storage, and drainage bags several important advantages over widely used PVC. Besides being free of halogens and phthalates, Medalist elastomers are available at lower hardness ranges, provide a broader processing window, exhibit greater elasticity and superior low-temperature flexibility, have a wider range of service temperatures, and save weight because of their lower density. Like PVC, Medalist elastomers are available in fully transparent grades.
"ecoGenesis RF plastics welding is the latest addition to a rapidly expanding portfolio of methods for fabricating medical devices with components made from Medalist elastomers," said Elliott Pritikin, New Business Development Specialist for Teknor Apex's Thermoplastic Elastomer Division. "High-purity Medalist compounds can be sealed or bonded using standard techniques, including adhesive bonding, vibration welding, heat-sealing and now RF welding."
The availability of RF plastics welding capability for Medalist elastomers gives greater scope for designers and processors of medical bags and pouches, noted Tom Ryder, president and CEO of Genesis Plastics Welding. "In making it possible to RF-weld Medalist elastomers, the proprietary ecoGenesis technology opens the door to lower manufacturing costs, elimination of heat-seal additives, and the possibility of reducing raw-material costs. In addition, RF plastics welding yields dependable, clean-looking seals even in intricately shaped patterns."
About Genesis Plastics Welding
Genesis Plastics Welding is one of the industry's leading contract manufacturing companies that specializes in radio frequency (RF) plastics welding of thermoplastic products and components for industries including medical, military, automotive, marine and consumer products. Unique to the plastics welding industry, Genesis' proprietary heat sealing technology allows RF plastics welding of polyethylene, polypropylene and nearly any low-loss polymer in film, foam and fabric layers. The technology is an ideal replacement for Polyvinylchloride (PVC) and Polyurethane with "green" phthalate-free plastics as it causes polymers with low dielectric loss factors to respond to RF plastics welding just like PVC. The company's plastics welding technology, ecoGenesis™, also aids in cost reduction as it eliminates the need for expensive heat seal additives and enables the substitution of lower cost raw materials.
About Teknor Apex Company
Teknor Apex Company is a diversified plastics compounder that sells in 90 countries and operates manufacturing facilities in the U.S., Europe, and Asia. The Thermoplastic Elastomer Division's Medalist® high-purity medical elastomers are available with hardness from Shore OO 25 to Shore A 87, include clear, translucent, and opaque formulations, and have applications ranging from film and tubing to molded components and wire and cable. An expandable registered binder with a wealth of test data on Medalist products and resources for designers and processors is available to qualified OEMs, designers, and plastics processors in the medical device and healthcare product industries.
Source: Genesis Plastics Welding