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Dividertube™ technology
How does it work ?
How does it work ?
DUAL TUBE CHAMBER packaging
Dual-chamber tube packaging is not exactly new. Indeed, developers have been working on the idea for more than 30 years, and a number of possible solutions have been patented. Nevertheless, surprisingly few solutions are commercial today as most of the inventers were presented with difficulties similar to those faced by Aisa at the beginning of the project:
Dual-chamber tube packaging is not exactly new. Indeed, developers have been working on the idea for more than 30 years, and a number of possible solutions have been patented. Nevertheless, surprisingly few solutions are commercial today as most of the inventers were presented with difficulties similar to those faced by Aisa at the beginning of the project:
In the first step the divider film (typically a 5-layer PE/EVOH/PE film) is welded onto the printed laminate.
In the second stage the laminate assembly with the divider film is formed into a tubular shape, and welded to create a side seam. During this operation the divider remains in its original position.
At the end of the body-maker section the tube is cut to length using a print mark registration. The tube sleeves are then transferred to the heading machine section.
At this stage the divider inside the tube bodies is placed in position by several mechanical devices. With the tube body and divider in the desired position and loaded onto the mandrels, a PE tube shoulder is compression-moulded and welded into place. The two half-moon shaped orifices are also formed during this operation.
Finally, the tube is inspected for any mould defects, and capped with a flip-top cap and oriented towards the print. The dual chamber tube is now ready for the tube filling machine. Tubes in diameters ranging from 30mm to 50mm and in different commercial lengths can be produced on the line. Oval section shapes are also possible.
In the second stage the laminate assembly with the divider film is formed into a tubular shape, and welded to create a side seam. During this operation the divider remains in its original position.
At the end of the body-maker section the tube is cut to length using a print mark registration. The tube sleeves are then transferred to the heading machine section.
At this stage the divider inside the tube bodies is placed in position by several mechanical devices. With the tube body and divider in the desired position and loaded onto the mandrels, a PE tube shoulder is compression-moulded and welded into place. The two half-moon shaped orifices are also formed during this operation.
Finally, the tube is inspected for any mould defects, and capped with a flip-top cap and oriented towards the print. The dual chamber tube is now ready for the tube filling machine. Tubes in diameters ranging from 30mm to 50mm and in different commercial lengths can be produced on the line. Oval section shapes are also possible.
AISA Automation Industrielle SA - Avenue de Savoie 61 P.O.Box 336 CH- 1896 Vouvry (VS) Switzerland
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