In this research, recycled fibres (RF) were used to produce three types of two-component yarns such as cotton covered by RF "R-C" core yarn, RF covered by cotton "C-R" core yarn, and randomly blended "mixed" yarns. In the case of "R-C" and "C-R" core yarns, the core component is perfectly covered by sheath fibres and the appearance of these yarns is the same as that of yarns made with sheath fibres. The results show that "R-C" yarns are stronger than other types, while; there is no significant

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... ifference between the strength of "C-R" and "mixed" yarns. Also, the strength of all types of two-component yarns is higher than that of 100% RF yarns, while their elongation is almost as same as that of 100% cotton yarns, which are lower than that of RF yarns. Also the irregularity of all of the twocomponent core yarns is better than that of RF yarns. From the results, we conclude that, with our techniques, we can produce on a friction spinning machine two-component core yarns and blend yarns from staple fibres with acceptable appearance and tensile properties.