Murata Air-Jet Spinning MJS System
topic
The Murata Jet Spinner uses two counter-rotating air jet nozzles in sequence, with the first nozzle opening the drafted fibre bundle edge fibres and the second nozzle twisting them into a helical wrapping around the parallel fibre core at delivery speeds up to 300 metres per minute, producing yarn of Ne 20 to 50 with low hairiness and good abrasion resistance for shirting and interlock knitting applications.
Role
Established air-jet spinning as a commercially viable spinning technology for polyester-cotton blended yarns in shirt fabric markets, demonstrating the production speed advantage over ring spinning for medium-fine count blended yarns while identifying the wrapping fibre content and core parallelism as the key structural parameters governing mechanical and handle properties of air-jet spun yarn.