An interesting market considering that the tea bag packaging sector presents a constant annual growth of 3-4%, and so is one of the most interesting areas of food packaging. With this acquisition Marchesini Group become one of the four main producers of tea packaging machinery for double chamber bags (75% of the market demand). The use of natural fibre filter paper, double knotting of the cotton thread (at a rate of 180 or 220 bags/min.) and the consequent absence of closing materials such as metal staples or thermoplastic seals, laid the foundations for the success of this packaging solution, with reduced environmental impact but high protective capacity.