SIG Plastic Beer Bottles

Neuhausen am Rheinfall, Switzerland and Parma, Italy -- September 14, 2004 -- Jobwerx News -- Emballage 2004 to be held in Paris from 22 to 26 November and it is a major date for operators in the sector.

SIG Alfa, SIG allCap, SIG Comaco, SIG Corpoplast, SIG Simonazzi and Elettric 80 are the companies representing the SIG Group at the event. They will bring all their expertise to the fair for their specific fields of competence.


SIG Group will be present at the Show at Hall 5B - Booth R 10

SIG Alfa
SIG Alfa is Italy’s leading producer in the labelling sector and the world’s second largest in terms of net sales and workforce. Its product range covers all existing labeling technologies and applications, thus covering all market segments.

Product Desciption: Alfa Rollfed Labellers - Exact label positioning (Spotting)
There is an increasing market demand for positioning labels exactly at the same point on the bottle corresponding to a special logo or impression on the bottle. This means the bottle must be oriented at the infeed to the labelling station. Thanks to its long and extensive experience in the field, SIG Alfa has created several successful applications offering customers two separate solutions:

Electronic orientation achieved by applying servomotors to each of the bottle support plates in the labelling station. The servomotors rotate the bottle to the correct position according to a signal received from a special inductive or optical-fiber sensor able to read the exact position of the bottle where labelling is to start. This is a very high-tech solution to be used in those cases where the logo or impression on the bottle are not easily seen or in any case cannot be detected by mechanical systems. Mechanical orientation achieved by using a special orientation station positioned immediately before the labelling station. This technology requires the bottle to have a notch or a rib on the bottle exterior that can be detected by a special mechanical device. The bottle is rotated on a dedicated starwheel and in this phase is locked into the correct position by the detector and then, perfectly orientated, moves on to the labelling station. This is a simple and reliable solution based on - long-term - experience in developing and designing orientating systems.

Glass Bottles
Roll-fed labelling machines are normally used for PET bottles, but the market also demands roll-fed applications for plastic labels on glass bottles. This kind of labelling is complicated due to the fact that the rigid structure of the bottle means there is no elastic return in the bottle against the pressure exercised by the label transfer drum. SIG Alfa has innovatively and very successfully solved this problem by developing a special label transfer drum for glass bottles. The external surface of the drum is fitted with small sprung sheet-steel plates (a patented system) so that the drum ensures constant pressure during label application. Moreover, the system means that inevitable slight differences in the body diameter or slight ovality of glass bottles can be accommodated with no detrimental effect on the labelling quality.

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