Self opening bag pack, apparatus and method of making same

An apparatus for making a self-opening bag pack comprising:

• a supply of film material;
• an extruder, said extruder forming a continuous tube of film;
• a flattener, said flattener forming a continuous flattened tube;
• a corona treater, said treater corona treating at least one surface of said flattened tube;
• a first sealer, said first sealer forming a bottom seam across a width of said flattened tube at a predetermined interval;
• a cutter, said cutter cutting said flattened tube into bag blanks at a predetermined distance from said bottom seam;
• a stacker, said stacker forming said bag blanks into a bag pack an aperture maker, said aperture maker penetrating said bag pack and forming means for suspending said bag pack from a dispensing rack;
• an adhesion knife, said knife having a single non-linear elongated cutting edge and providing a single non-linear elongated knife cut, said single non-linear knife cut extending completely through front and rear walls of each of said bag blanks in said bag pack, having first and second ends and first and second elongated non-linear edges, and adhering adjacent bag blanks together in said bag pack along both of said first and second elongated non-linear edges and providing self-opening features;
• and
• whereby, when said bag pack is attached to said dispensing rack and a first bag is pulled outwardly from said bag pack, said front wall of a subsequent bag will be adhered to said rear wall of said first bag, thereby causing said first bag to open.