초록 ▼

A web comprising two end-to-end series of bags of synthetic plastics material is disclosed. The bags of each series are joined to one another by structures comprising weld lines and lines of weakening. The two series are joined to one another by a structure comprising either a line of weakening or a

A web comprising two end-to-end series of bags of synthetic plastics material is disclosed. The bags of each series are joined to one another by structures comprising weld lines and lines of weakening. The two series are joined to one another by a structure comprising either a line of weakening or a line of weakening with welds on each side thereof. The web is constituted by a tube which is extruded with two sets of inter-engagable ribs. Each series of bags is punched with a row of tractor holes. In another form there is a single end-to-end series of bags.

대표청구항 ▼

A web comprising two parallel end-to-end series of bags of synthetic plastic material, the parallel series of bags being joined to one another along a line of weakening which extends along the centre of the web, each bag being joined to an adjacent bag of its series along a structure comprising a li

A web comprising two parallel end-to-end series of bags of synthetic plastic material, the parallel series of bags being joined to one another along a line of weakening which extends along the centre of the web, each bag being joined to an adjacent bag of its series along a structure comprising a line of weakening and a weld on each side of the line of weakening, said welds forming edges of the bags and the web further having two laterally spaced rows of tractor holes and two sets of interengageable ribs, there being a set of ribs adjacent each edge of the web, the rows and ribs both extending in the direction of the length of the web and extending parallel to one another with the rows of tractor holes between each set of ribs and the adjacent edge of the web.