Embroidery, Quilting & Embellishing Enjoy adding the perfect pizazz to any of your creative projects with the soft, warm, natural look of SULKY RAYON thread. This machine embroidery thread has the same luster and soft, warm, natural look as silk with silk’s smoothness, but it is stronger than either silk or cotton thread of the same weight. SULKY RAYON thread won’t fray, fuzz or shrink and it has less stretch than Polyester thread. It is available in numerous solid colours but as well in multishade colours. With the multishade colours, the different colour shades are repeated at regular intervals, thus creating multi-coloured effects with one thread colour.