3D shape sealing bar

Heat sealing bands also allow you to design three-dimensional contours due to their elasticity. We are thus able to manufacture complete sealing bars for 3D contours. Spouts are a typical example here. A flat film is fused onto both sides of a rigid, convex spout; it forms the top of a pouch or bag with a screw-type or tube connection often encountered in medical applications. The challenges are similar to those presented by 2D contours, except that a thin film is additionally bonded to a hard, three-dimensional plastic. The sealing bar contour, heat sealing band and counter bar must be perfectly executed.