| 摘要 |
A method for seaming the end of a tube (2) made of plastic or a laminated material consisting of plastic and aluminium foil layers, said tube being used as a container for the storage and application of e.g. toothpaste or cosmetic substances, and an apparatus for applying the said method. In known types of tube, the strength of the end seam is insufficient. In the method of the invention, this problem is solved in that the open end or one of the open ends of the tube (2), having at least one end open, is squeezed together, folded and then seamed by heating the folded end from the outer side of the fold and squeezing the fold against the rest of the flattened tube end. <IMAGE> |
