Thermoplastic bag pack

Claim 1

A bag pack comprising a plurality of stacked thermoplastic film bag structures, each bag comprising a front and rear bag wall and an open mouth portion, said open mouth portion being characterized by having handles which are integral extensions of said walls, said handles being located at opposite ends of said mouth portion; the superimposed lines defined by both film edges of said bag mouth portion when the bag is in its lay-flat position are a series of compound curves including (a) stress relief curves at opposite ends of said bag mouth, said stress relief curves opening or facing in the direction of the handle end of the bag and (b) a curve intermediate said stress relief curves, said curve being generally of the same but opposite amplitude of said stress relief curves; located within the area beneath said (b) curve are: (i) at least one orifice to accommodate physical suspension of said bag pack from a suspension means to be placed within said orifice, said orifice being of the type which in the absence of reinforcement tends to distort or enlarge under the weight of the bag pack; (ii) at least one melt-bonded means fastening all of said bags structures together, said melt-bonded means being located at a point below and closely adjacent to said orifice providing rigidity and reinforcement thereto; and (iii) located below and closely adjacent to said melt-bonded means and above the point of maximum amplitude of said stress relief curves a line of preweakening in said film, said line of preweakening adapted to accommodate, in cooperation with said orifice and bonding means, tear-off of individual bags structure from said bag pack.