| 摘要 |
The invention discloses a packaging development providing enhanced resistance to splitting or opening of a seam or seal in a multi-ply wall flexible film package. A chub package having a cylindrical multi-ply wall of flexible film gathered at the end by clenched metal bands is set forth, the package having a seal formed at offsetting marginal strips on the inner and outer plies of the multi-ply wall. In a preferred method of forming a package, a marginal strip on each ply is offset from an adjacent edge of the adjacent ply prior to forming the seal and the seal is formed by heat sealing the marginal strips to opposite edges of the same ply.
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