This process consists in placing the stoppers in a room equipped with dryers where we regulate the humidity to the optimal level for the tasks which have to be carried out later: rectifying, washing, colmation, coating, etc.
2) TRIMMING (rectifying)
Trimming is the process of rectifying the stoppers to give them the exact length required. This process can be applied in the stoppers that have just been punched or in any of the various stages of production. We apply various trimming methods: simple (the same amount of cork is removed from each end of the stopper) or by using sensors, photocells or artificial vision systems (the amount removed from each end of the stopper can be selected at the customer’s request).
3) POLISHING (rectifying)
This is the process of rectifying the stoppers to give them the required diameter. They can be polished from one to several tenths of a millimetre.
4) CHAMFERING (rectifying)
In chamfering, we make a diagonal cut around the end of the stoppers at a fixed angle. This cut can be of different widths and can be made at both ends or only one.
After rectification, the stoppers are washed and disinfected to prevent microbial contamination. The process can be carried out modifying the colour of the stoppers with various tones of white or leaving their natural colour, and can be conducted by spraying or immersion.
In this process we fill the pores of the stoppers with natural cork powder and glue in order to improve their appearance and performance. The glues we use comply with the regulations on materials coming into contact with food products, EC Regulation nº 1935 of 27 October 2004 and Resolution of the Council of Europe RES AP (2004) 2.
We apply a coat of natural polymer to the surface of the stoppers to prevent capillarity. The polymer, which can be transparent or coloured, helps us to improve the visual appearance of the stoppers. These polymers comply with the regulations on materials coming into contact with food products, EC Regulation nº 1935 of 27 October 2004 and Resolution of the Council of Europe RES AP (2004) 2.
8) WAREHOUSING AND SHIPPING
Once the batches have been completed, they are stored in our large warehouse in optimal conditions, duly labelled and palletised, waiting to be collected by the customer.