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A hybrid yarn is made up of an intimate mixture of spun yarns of reinforcing fibers and spun yarns of thermoplastic matrix fibers. The spun yarns are obtained by cracking with slow, gradual stretching of the multifilaments. After stretching, parallel fibers are wrapped with a continuous thermoplasti

A hybrid yarn is made up of an intimate mixture of spun yarns of reinforcing fibers and spun yarns of thermoplastic matrix fibers. The spun yarns are obtained by cracking with slow, gradual stretching of the multifilaments. After stretching, parallel fibers are wrapped with a continuous thermoplastic filament. The invention may be used to produce hot-stamped parts.

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[ What is claimed is:] [1.] A hybrid yarn for composite materials with a thermoplastic matrix, comprising an intimate mixture, of spun yarns of reinforcing fibers and spun yarns of thermoplastic matrix fibers, each of the spun yarns of fibers having been obtained by cracking with slow, gradual stret

[ What is claimed is:] [1.] A hybrid yarn for composite materials with a thermoplastic matrix, comprising an intimate mixture, of spun yarns of reinforcing fibers and spun yarns of thermoplastic matrix fibers, each of the spun yarns of fibers having been obtained by cracking with slow, gradual stretching of multifilaments, and, after stretching, parallel fibers of said mixture, having been wrapped by a continuous filament of thermoplastic material.