Method for producing packed product

A method for producing a packed product comprising:

• a packing material;
• and a packing object packed by the packing material, wherein
• the packing material comprises:
• a sheet having an opening area that is surrounded by a cut line;
• and a label fixed to the opening area,
• the opening area is configured to be separable from the sheet by breaking the cut line by pulling the label in a direction in which the label is separated from the sheet,
• the packing object comprises:
• a front portion;
• a back portion arranged to be opposed to the front portion;
• and a side portion lying between the front portion and the back portion,
• the packing object is arranged to overlap the opening area on an opposite side to a side of the sheet on which the label is arranged, and is arranged to allow the opening area to cross the front portion of the packing object,
• in the packed product, a length in a longitudinal direction of the opening area is equal to or longer than a length from one end to an other end of the front portion of the packing object,
• the one end and the other end in the longitudinal direction of the opening area are arranged at positions on the side portion of the packing object that are opposed to each other with the packing object therebetween, and
• the back portion of the packing object has an entire outer peripheral end portion of the packing material gathered and joined together,
• the method comprising:
• disposing the packing material to have a side with the label thereon facing upward, and conveying the packing material on a packing line to a position where the packing object is packed, thereby arranging the packing object under the packing material;
• mounting, at a position where the packing object is packed, a packing guide formed of a plate material with an opening slightly larger than an outer diameter of the packing object so as to be opposed to the side of the packing material on which the label is disposed, and lifting up the packing object to cause the packing object together with the packing material to pass through the opening of the packing guide;
• deforming the packing material to conform to a shape of the packing object for wrapping in a state where the packing object together with the packing material has passed through the opening of the packing guide, and
• gathering and joining together the entire outer peripheral end portion of the packing material by drawing together the entire outer end portion of the deformed packing material.