Importance

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Abstract

A method for wrapping hygroscopic products includes feeding a succession of products and wrapping each product in wrapping material to define a wrapper for the product. The wrapping including 1) folding a sheet of wrapping material into a U-shape around at least part of a respective product and sealing to each other at least two edges of the sheet of wrapping material along a first, longitudinal sealing line defining a tubular body in which the product is disposed and having a first and a second open end; 2) sealing at least two portions of the tubular body along a second and a third sealing line transverse to the first longitudinal sealing line, thereby enclosing the product in the wrapper; and 3) creating a vacuum in the tubular body before the sealing the portions of the tubular body along at least one between the second and the third sealing line.

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First Claim