
The PERFECTA HS produces a double chamber tea bag with a hard tag which is additionally sealed in a flat bag sealed on three sides.
This machine can process a large selection of materials suitable for hot sealing which have a paper, polypropylene (PP), aluminium (AL) and polyester (PET) basis. It applies a polyethylene (PE) coating seal or another suitable coating seal.
Aroma protection is significantly increased by metalising the coating. A 7-9 µm thick aluminium foil as a composite film has an even greater effect. This makes the packaging gas-tight, no oxygen can diffuse to the inside.
The aluminium composite foil combined with packaging in a protected environment (nitrogen) provide perfect aroma protection and extend the shelf-life of the product.
Nitrogen can be fed in by a pipe during the production process. This drives out oxygen from the packaging and creates a tea bag with a residual oxygen content of under 3-5%.