webbing a plurality of the different pile yarns are initially introduced as pile ends in the webbing for example a central pile yarn 38 is initially crossed over between the webbing straps at station e at the beginning of the length of the webbing similarly pile yarns 40 to 52 initially appear in the webbing as pile ends at stations f to g respectively therefore the gradually increasing number of density of pile ends appearing in non uniform section 54 as previously described provides a correspondingly increasing resistance to the tearing force to which the webbing straps are subjected the section 56 of the webbing 36 in fig2 represents a uniform or non graduation portion of the webbing which will offer a uniform resistance to the force in order to make the increase of resistance in such small steps as to be essentially continuous the pile yarn can be fed from a creel of individual spools rather than from warps as presently done the initial resistance to separation can be performed by a small number of pile ends as few as one to five and the remaining pile ends can be woven into the backing straps as additional warp ends by means of a jacquard machine one or two additional ends can be added to the pile at intervals which will either linearly or logarithmically depending on the tear webbing length available include all available ends in the pile at one half to three quarters of the available tear length this unique so called w weave configuration of the pile yarns woven in the respective webbing straps is another important feature of.