The growing demand for sustainable textile production emphasizes the importance of effectively recycling pre consumer textile waste, in particular wool and wool blends. This study integrates and extends the results of three recent investigations to establish a comprehensive protocol for maximizing fiber retention during the mechanical recycling of four main wool knitted fabrics (Rib 1x1, Interlock, Single and Double Jersey). Loop-length variation, segment length optimization, and cutting-angle effects were examined under controlled conditions. By synthesizing these parameters into an integrated knitting–cutting framework, the proposed protocol achieves greater than 90% retention of original fiber length. The findings serve to maximize recycling processes, increase fiber retention, advance circular economy principles in textile production, and have practical applications in automated recycling systems and enhanced yarn production.