Making inflated bags used as packing material - involves inflating bags and then sealing them by welding

摘要

Pacing material, for protecting fragile goods during transport, is formed from bags made of elastic material with the pressure inside the bag being higher than that of the surrounding atmox.. The bags are made from a flat tube of plastics film which is cut transversely to form the bags. The length of tube is sealed at one end by welding the edges together. The bag is then inflated and the open end is sealed by welding before the inflation nozzle (b) (b) is removed. USE - Packing material which is not harmful to the environment, as is the case with the foamed plastics, which are often used.