Bags

Claim 2

A roll of tubular plastics material from which is formed a plurality of refuse bags used for storing and/or transporting material such as garbage or refuse prior to collection or transport to disposal comprising: (a) front and rear panels of material; (b) straight end welds that weld the panels together at suitably spaced locations, transversely to the direction of the bag; (c) an end cut adjacent to each end weld, and (d) a transverse separating cut forming an open end for two bags between two pairs of end welds, the said separating cut being so shaped that four cut-outs are formed in the said open ends to leave projecting tie parts which in each bag are capable of being tied together to close the opening whereby each bag has a capacity substantially equal to a rectangular refuse bag having no tie parts and is formed by substantially less bag forming material than a rectangular refuse bag by up to 10%.

Claim 3

A roll of tubular plastics material from which is formed a plurality of refuse bags used for storing and/or transporting material such as garbage or refuse prior to collection for or transport to disposal comprising: (a) front and rear panels of material lying flat one on the other and having side edges at which they are joined; (b) pairs of closely spaced straight end welds the panels together at suitably spaced locations, transversely to the said edges; (c) a set of perforations extending across the roll between each set of end welds; and (d) a line of perforations extending transversely across the roll midway between two adjacent pairs of end welds to form an open end for two contiguous bags between a pair of end welds, the said set of perforations being so shaped that when the material of the roll is torn along the said line of perforations, four cut-outs are formed in the said open ends to leave projecting tie parts which in each bag are capable of being tied together to close the opening whereby each bag has a capacity substantially equal to a rectangular refuse bag having no tie parts and is formed by substantially less bag forming material than a rectangular refuse bag by up to 10%.

Claim 4

A roll of tubular plastics material from which is formed a plurality of refuse bags used for storing and/or transporting material such as garbage or refuse prior to collection for or transport to disposal comprising: (a) front and rear panels of material lying flat one on the other and having side edges at which they are joined; (b) pairs of closely spaced straight end welds the panels together at suitably spaced locations, transversely to the said edges; (c) a set of perforations extending across the roll between each set of end welds; and (d) a line of perforations extending transversely across the roll midway between two adjacent pairs of end welds to form an open end for two contiguous bags between a pair of end welds, the said set of perforations being so shaped that when the material of the roll is torn along the said line of perforations, four cut-outs are formed in the said open ends to leave projecting tie parts which in each bag are capable of being tied together to close the opening whereby each bag has a capacity substantially equal to a rectangular refuse bag having no tie parts and is formed by substantially less bag forming material than a rectangular refuse bag by up to 10%.

Claim 5

A roll of tubular plastics material as claimed in claim 2 in which the said line of perforations is generally sinusoidal and comprises a complete crest, two valleys one on either side of the crest and two half crests respectively outside the valleys so that both bags formed by tearing along the said sinusoidal line or perforations will have four tie parts.

Claim 6

A roll of tubular plastics material as claimed in claim 1 in which the said cut is generally sinusoidal and comprises a complete crest, two valleys one on either side of the crest and two half crests respectively outside the valleys so that both bags formed by tearing along the said sinusoidal line of perforations will have four tie parts.