Procédé de fabrication d'objets conformés stratifiés

摘要

Laminated sections are made by winding a sheet of paper or fabric and a plastics film on to a mandrel in the cold, without any addition. The first and last turns or the spool may be of plastics film alone. Unwinding may be prevented by an adhesive strip on the last turn. The spool after winding is removed and heated at any later time to fuse the plastics film and bond the layers together. A label may be sealed under the last layer of film. A packaging container is made from the section by crimping a disc of similar laminated material on the bottom of the section and heating to ensure liquid-tightness.