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In this paper we compared a classic and an unconventional system for the manufacturing of cotton yarns 100%. For this comparison we analyzed the complexity of classical and unconventional technological lines, the differences between the yarn structures, the fields of use of the yarns, as well as a cost-benefit analysis. From the point of view of the complexity of the technological lines and implicitly of all the necessary adjustments we can say that the technological line for the unconventional system is much easy and shorter. Considering the complexity of technological lines, we can say that the human resources requirement is much lower for unconventional technological lines. For this we realised a comparative calculation of costs for workers and for taxes that an employer has to pay. Starting from the complexity of the technological lines, the unconventional technological line being shorter with two machines, we made a comparative calculation of the energy consumption. The calculations were made for a spinning mill with a production of 4000 t/year, a typical production for a medium size. From the point of view of the production costs and investment effort, we can say that the unconventional system is better, but considering the structure of the yarns we can say that the destinations are different, so the unconventional yarns are better suited to certain products, such as the jeans clothing.

Classic or unconventional cotton yarns?