FIELD: personal care items.
SUBSTANCE: invention relates to a process of sheet cahier coupling, for example, to form a book or something equal, in particular to get a book or folder, sheets of which can create an open flat surface and are printed continuously without a seam at the two open pages. Method of sheet cahier coupling at the connecting spine, according to which the cahier is located at the connecting spine with the margin of paper and is fixed there. For coupling sheets cahier is used, the strip of every sheet was previously separately doubly bent at the same line to form a fold line which extends in parallel and at a distance from the above mentioned edge.
EFFECT: smooth, precise and easy fastening of sheets.
28 cl, 26 dwg
