Shrink Packaging Machine

A packaging machine which shrinks thermoplastic film around a product or group of products, as they pass through a heated tunnel. The following types of machines come under this category:

• L-seal Shrink Packaging Machine: A semiautomatic shrink packaging machine which uses roll-fed thermoplastic film folded in half along its length. A product or group of products are placed between the two halves of film. The film is then sealed and cut off around the product with an L shaped sealing bar. Widely used for wrapping books, video tapes, floppy disks, foodstuffs such as dried fish, boxed products, etc.
  
  
• Sleeve Shrink Packaging Machine: A shrink packaging machine in which thermoplastic film is wrapped around a package or group of packages as it moves between two rolls of web that have had the ends welded together. After the package has completely passed between the web rolls, a set of I shaped sealing bars push the trailing webs together, apply heat to seal the webs together and cut it free. The pack is then passed through a heated tunnel to shrink the film around the product to produce tighly bundled pack. Widely used for packaging a group of boxes containing foodstuffs or sundry goods, or a group of PET bottles, cans or paper containers for beverage.
  
  
• Shrink Labeling Machine: A labeling machine which places printed thermoplastic tubular film over the body of a plastic container, can, etc., passes it through a heated tunnel to shrink the film around the body so that it closely fits the container. Widely used for labeling beverage, seasoning or liquid medicine containers.
  
  
• Shrink Tunnel: A machine which passes a product or group of products wrapped in thermoplastic film through a heated tunnel on a built-in conveyor and shrinks the film around the products for tight wrapping.