Method of wrapping a flat rectangular article

A method of packing a flat, angular item having two opposite large faces, two opposite side faces and two opposite end faces;

• each said end face being bounded by two short end face edges, a first long end face edge and a second long end face edge;
• comprising the following steps:
• (a) laying a wrapper sheet about the two large faces and the side faces to obtain superposed longitudinal edge zones of the wrapper sheet and opposite terminal wrapper portions projecting beyond the end faces;
• (b) bonding to one another said longitudinal edge zones by a longitudinal seam to obtain a fin seam;
• (c) flattening said fin seam against one of said large faces;
• (d) folding each terminal wrapper portion by folding a first terminal wrapper portion about said first long end face edge flat onto the respective said end face and folding a second terminal wrapper portion about each of the short end face edges onto said first terminal wrapper portion, whereby each terminal wrapper portion is coplanar with the respective end face and has an end part projecting beyond a respective said second long end face edge;
• (e) sealing folded parts of each terminal wrapper portion to one another along a seam on the part of the terminal wrapper portion extending beyond said second end face edge;
• and
• (f) folding said end part of each terminal wrapper portion about said second long end face edge flat against the respective said end face.