A slub yarn is a spinning effect with deliberate thickenings spun into the yarn. This to mimic the manual effect of linen- or shantung silk.
In the Buffo for Casalis I processed the yarn in a dégradé effect. This creates a beautiful gradient effect in colour because the 7 cm long, slub yarn, loosely tangles.
A dégradé, or shadow stripe provides depth to the design. From light to dark, in a gradient of colours.
A slub yarn is a twist- or twine effect whereby the speed of the sliver feeders differs.
Before the spinning process the raw materials are determined. They are then blended, combed and processed into a sliver lap from which one or more slivers are made. Then from the sliver a yarn is spun. The next step in the process is twining.
A single yarn is twisted, but not twined with a second thread. The yarn gets its strength by felting. For a twine effect two or more threads are processed.