Spirally wound container body

Claim 1

IN A SPIRALLY WOUND CONTAINER BODY WHICH IS FORMED WITH AT LEAST ONE FIBRE BODY PLY HAVING THE HELICAL EDGES THEREOF DISPOSED IN SLIGHTLY SPACED RELATIONSHIP, A HELICAL LINER PLY FORMED OF A LAYHER OF FLUID IMPERVIOUS MATERIAL LAMINATED TO A PREVIOUS BACKING, SAID LINER PLY BEING DISPOSED WITHIN THE FIBRE BODY PLY WITH ITS FLUID IMPERVIOUS LAYER DISPOSED INWARDLY AND WITH ITS PERVIOUS BACKING LAYER ADHESIVELY SECURED TO THE FIBRE BODY PLY, THE EDGE OF ONE OF THE MARGINAL PORTIONS OF SAID LINER PLY BEING IN SUBSTANTIAL ALIGNMENT WITH THE ADJACENT EDGE OF SAID BODY PLY, THE OPPOSITE MARGINAL PORTION OF SAID LINER PLY EXTENDING BEYOND THE ADJACNET EDGE OF SAID BODY PLY AND BEING HEMMED OUTWARDLY AND OVERLAPPED OVER SAID ONE MARGINAL PORTION OF SAID BODY PLY TO BRING THE IMPERVIOUS LAYERS OF SAID LINER PLY MARGINAL PORTION INTO FACE-TO-FACE RELATIONSHIP, A FLUID-IMPERVIOUS ADHESION BETWEEN SAID OVERLAPPED PORTIONS OF SAID LINER PLY TO FORM A FLUID TIGHT SEAM THEREBETWEEN, SAID OPPOSITE MARGINAL PORTION OF SAID LINER PLY EXTENDIN OUTWARDLY FROM THE HEMMED AND OVERLAPPED PORTION THEREOF AND BETWEEN SAID SPACED HELICAL EDGES OF THE BOIDY PLY AND FOLDED INTO OVERLAPPING RELATIONSHIP AGAINST THE OUTER SURFACE OF THE MARGINAL PORTION OF SAID BODY PLY FROM WHICH SAID LINER PLY MARGINAL PORTION EXTENDS.