Abstract: An improved synthetic twine and method of manufacturing same are disclosed. The synthetic twine comprises at least one longitudinally extending oriented synthetic ribbon which has been fibrillated to provide a net-like structure having fine fibril stems connected by finer fibril branches, and a synthetic binder in thin band form made of a material compatible with the synthetic ribbon. The synthetic binder is spirally wrapped around and fused to the synthetic ribbon. The method of making a twine comprises the steps of providing at least one longitudinally extending ribbon, orienting the synthetic ribbon and fibrillating the synthetic ribbon to provide a net-like structure having fine fibril stems connected by finer fibril branches. Thereafter, a synthetic binder in thin bank form is spirally wrapped and fused around the synthetic ribbon which has been oriented and fibrillated.

Abstract: A twine comprised of a core bundle of synthetic monofilaments twisted along the length of the twine and a synthetic binder material in thin band form spirally wound about the monofilaments in a direction opposite to the core bundle twist has been found to form knots of superior strength which are less susceptible to slippage while maintaining good flexibility. A further embodiment comprises the bundle of twisted monofilaments and a synthetic binder in thin band form spirally wound in the direction of the core bundle twist so as to provide a flat twine useful as cable filler.

Abstract: A method of producing twine composed of a plurality of thermoplastic mono filaments in a bundle which comprises, passing a bundle of thermoplastic monofilaments continuously along a path, imparting a false twist of 3 to 30 turns per linear foot to said bundle, applying a compatible molten thermoplastic spiral band to said twisted bundle as a spiral band to fuse said spiral band to the outer monofilaments, and recovering a twine having a portion of said false twist captured therein by fusion of the spiral band thereon.The apparatus for obtaining this twine consists of a path along which a bundle of thermoplastic synthetic monofilaments having a false twist therein can be continuously moved, means to direct a molten compatible thermoplastic on to said twisted bundle to form one or more spiral bands on said bundle and to fuse the outer monofilaments of the bundle to the spiral band, and means for imparting a false twist to said bundle at a point prior to said directing means.