This invention is related to a tissue ablation system and method that treats atrial arrhythmia by ablating a circumferential region of tissue at a location where a pulmonary vein extends from an atrium. The product comprises a blend of a carboxylic acid terminated polyamide and a mixture produced by the Diels-Alder reaction of dienophiles, preferably carboxylic acids, polycarboxylic acids, acid anhydrides, or combinations or mixes thereof, with a mixture of fatty acids and resin acids. Status information is sent from the different printing devices to the print server where it is evaluated. The antennas can include transmit and receive antennas or antennas configured to perform both transmit and receive functions. The fabric treatment composition of the invention can be used to change, refresh or maintain the color of fabric. Therefore, it is not uncoupled easily at an engagement state when in earthquake, and it can uncouple easily at the engagement state.