Patent ID: 7048224

Claim:
A process for assembling wave-cut trash bags for overlapping dispensing including the steps of: providing a flattened blown-film polymeric tube; providing sets of closely spaced, parallel seals extending transversely across the entire width of the flattened blown-film polymeric tube at equally spaced intervals therealong; providing a line of perforations extending transversely across the entire width of the flattened blown-film polymeric tube between the closely spaced, parallel seals comprising each set thereof; providing a wave shaped line of perforations extending across the entire width of the flattened blown-film polymeric tube at a location equidistant from each of the closely spaced, parallel sets of seals; folding the flattened blown-film polymeric tube axially into a multi-layer, fractional width configuration; positioning a signal receiving target between the layers of the folded flattened blown-film polymeric tube; directing a signal through the transversely extending line of perforations positioned between the closely spaced, parallel seals and through the perforations comprising the wave-cut line of perforations and thereby locating each end of each trash bag comprising the flattened blown-film polymeric tube; applying opposed axially directing forces to the flattened blown-film polymeric tube and thereby separating the trash bags comprising the flattened blown-film polymeric tube at each of the transversely extending line of perforations positioned between the closely spaced, parallel seals; following the separation step, positioning the leading sealed end of the following trash bag comprising the flattened blown-film polymeric tube in an overlapping relationship with the trailing sealed end of the preceding trash bag comprising the flattened blown-film polymeric tube; applying opposed axially directing forces to the flattened blown-film polymeric tube and thereby separating the trash bags comprising the flattened blown-film polymeric tube along each wave shaped line of perforations formed therein; following the separating step positioning the leading wave-cut end of the following trash bag comprising the flattened blown-film polymeric tube in an overlapping relationship with the wave-cut trailing end of the preceding trash bag comprising the flattened blown-film polymeric tube; and rolling the trash bags comprising the flattened blown-film polymeric tube into a roll with the sealed end of each following trash bag in the roll overlapping the sealed end of each preceding trash bag in the roll and with the wave-cut open end of each following trash bag in the roll overlapping the wave-cut open end of the preceding trash bag in the roll.