Production of composite industrial yarns has a spinneret for glass filaments and a melt spinning head for organic thermoplastic filaments, with a projection of the thermoplastic into the glass filaments

摘要

To produce a composite yarn (27), by interlacing continuous glass filaments from a spinneret (1) and continuous filaments of an organic thermoplastic material from a melt spinning head (11), the glass filaments are separated into a number of bundles (2a,2b) or bands (34a,34b). The thermoplastic filaments are divided into a number of bands (14a,14b). The thermoplastic filaments are projected into the glass filament bundles or bands, with one thermoplastic filament bundle for each. The tangled filaments (25a,25b) are gathered into at least one composite yarn (27). To produce a composite yarn of glass and organic thermoplastic filaments, the number of thermoplastic filament bands equals the number of glass filament bundles or bands. The glass filaments and the thermoplastic filaments are separated identically. The bands of thermoplastic filaments are projected into the glass filaments on the line of a spreader (7), between it and the glass filament separators (3,4). The thermoplastic filaments are oriented on a drawing unit (29) before projection into the glass filaments. The drawing speed, to orient the thermoplastic filaments, is equal to or greater than the yarn winding speed. An Independent claim is included for an assembly to produce composite yarns with venturi units (23,24) to mingle the thermoplastic filaments, each with a deflector (35,36) in front of the glass filaments. The glass filaments are separated in front of the winder.