By combining cost-effective screenprinting techniques, flexible substrates, and the latest functional inks; Butler Technologies, Inc. produces flexible heaters for use in apparel, automotive, aerospace, food service, and healthcare applications.
Through the precise control of design elements and deposition of functional inks, printed heaters can be made to specific operating parameters. To create these unique heater applications; a full range of conductive, resistive, and positive temperature coefficient inks are used in combination with flexible substrates such as polyester (PET), polyimide (PI), polycarbonate (PC), Kapton RS Conductive Film, and thermoplastic polyurethanes (TPU).
BTI produces traditional fixed resistance wire heaters and PTC self-regulating heaters. The traditional fixed resistance heaters utilize printed silver or carbon ink coils to produce heat. This type of heater is generally simple to produce and cost-effective but typically requires the use of external diagnostics or controls as they do not self-regulate. A screenprinted PTC heater utilizes a silver BUS system with self-regulating carbon elements. When power is applied, the resistance increases and limits the electrical current to the heater causing it to cool. As the heater cools, electrical current will increase again causing it to reach its operating temperature, thus self-regulating. PTC heaters provide more uniform heat with no hot spots, require less power to operate and are safer to use due to their cold-state failure mode.
Whatever your application, contact BTI for help on your next printed heater project. BTI will help guide you from concept to production. BTI maintains relationships with key material and technology partners to assist in the development and production of cost-effective and robust printed heaters.