The Unvircalka is a hybrid spinning machine that allows the basic structure of the ring spinning machine to be operated manually while the mechanical mechanism precisely controls the strength of the twist. Since one machine can spin multiple yarns simultaneously, it can produce yarns much more efficiently than traditional hand spinning. When operating the machine, the number of twists and tension can be freely changed by adjusting the speed at which the handle is turned and the tightening of the screws.

This method maintains the uniform twist of the short fibers while leaving subtle fluctuations and neps in the yarn that cannot be reproduced by machines, giving each yarn its own unique look. By simply changing the strength of the twist and the rotation speed, the thickness and firmness can be precisely designed, making it possible to create a wide variety of yarns to suit the product’s purpose and desired texture.