Paper shopper or bag and system for the production thereof

System for mass production of paper shoppers or bags (B), characterized in that it comprises:

• at least one station (1) for unwinding at least one continuous sheet (F) in at least one advance direction (X);
• at least one station (2) for scoring said continuous sheet (F) along at least one longitudinal score or series of scores (22x) parallel to the advance direction (X), defining the folding lines to obtain the jointless and closed bottom (B3) of at least one row of bags (B) joined at the sides;
• at least one station (4) for the application of a bonding agent on the areas of said sheet (F) that will successively be joined to form the vertical closed sides (B4) of each bag (B);
• at least one station (5) for folding said continuous sheet (F) along said scoring line/s (22x) parallel to said advance direction (X), and wherein the lateral edge (F1) of said sheet (F), which is lifted and folded on the sheet (F) itself, defines, with the opposite part of said sheet (F), the upper edges (B1) of the corresponding row of bags (B), while the opposite folded edge (F2) defines the bottoms (B3) of said row of bags (B);
• at least one station (7) for coupling by glueing said folded sheet (F) along the areas corresponding to the vertical closed sides (B4) of each bag (B);
• and wherein said stations (2, 4, 5, 7) are downstream of said unwinding station of said continuous sheet (F) and upstream of at least one station (11) for the transversal final cutting of said continuous folded sheet (F), in a direction transversal to said advance direction (X) and at modular distances, for the separation of each individual finished bag (B), and wherein each bag (B), before said sheet (F) is cut (11) to separate the individual bags, is arranged with its main longitudinal axis (Bx), joining the bottom (B3) of the bag (B) to the top of the bag (B) itself, positioned transversally with respect to said advance direction (X), said bag (B) being already completed, without needing any further operation for producing said bottom (B3) or said sides (B4).