The wet, semi-wet or dry ring spinning processes are relatively slow. Rotor spinning (also called 'open-end spinning') is much faster. This requires short fibres of a few cm length. Among biobased fibres, cotton is a well-known example that can be spun this way. However, the 'short fibres' coming from the scutching and hackling processes (§7§7.1.1, 7.1.3) are still too long for rotor spinning. These hemp fibres can be made shorter and finer by means of cottonisation (§7§7.3.1), so that they can be spun into yarn like cotton by rotor spinning (§7§7.3.2).
§7.3.1 Cotoniseren1 Cottonisation
§7.3.2 Spinnen van korte stapelvezels2 Spinning of short staple fibres
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