Method of making a fluid-tight container body and product thereof

Claim 1

A FLUID-TIGHT CONTAINER BODY FOR HOLDING A FLUID PRODUCT, COMPRISING: A HELICAL BODY PLY WHICH IS PERVIOUS TO THE FLUID PRODUCT, A HELICAL LINER PLY DISPOSED INWARDLY OF SAID BODY PLY AND COMPRISING AN INNER LAYER WHICH IS IMPERVIOUS TO THE FLUID PRODUCT AND AN OUTER BACKING LAYER WHICH IS IMPERVIOUS TO THE FLUID PRODUCT, SAID LINER PLY BEING WIDER THAN SAID PERVIOUS BODY PLY AND HAVING ITS MARGINAL EDGE PORTIONS FOLDED OUTWARDLY AROUND THE EDGES OF SAID BODY PLY AND DISPOSED IN A HELICAL BUTT JOINT WHEREIN THE FLUID IMPERVIOUS LAYERS OF SAID EDGE PORTIONS ARE IN ENGAGEMENT; SAID MARGINAL EDGE PORTIONS BEING FOLDED BACKWARDLY OVER SAID BODY PLY AND HAVING THE PERVIOUS BACKING LAYERS THEREOF IDSPOSED IN FACE-TO-FACE ENGAGEMENT WITH AND ADHESIVELY SECURED TO THE OUTER SURFACE OF SAID BODY PLY, AND A HELICAL SEALING RIBBON SPANNING SAID HELICAL BUTT JOINT AND COMPRISING A LAYER WHICH IS IMPERVIOUS TO THE FLUID PRODUCT, SAID IMPERVIOUS RIBBON LAYER BEING DISPOSED IN FACE-TO-FACE ENGAGEMENT WITH SAID IMPERVIOUS LINER PLY LAYER ON BOTH SIDES OF SAID BUTT JOINT AND BEING ADHESIVELY SECURED THERETO BY AN ADHESIVE WHICH IS IMPERVIOUS TO THE FLUID PRODUCT TO PREVENT PASSAGE OF THE FLUID PRODUCT THROUGH SAID BUTT JOINT.