slubby

Slubby refers to a type of yarn or fabric characterized by its uneven thickness and occasional knots or lumps. This unevenness is often intentionally created during the spinning process. In yarn production, slubby yarns are made by varying the rate at which fibers are fed into the spinning mechanism, resulting in thicker sections alternating with thinner ones. This technique can also lead to small, irregularly placed knots or thick spots within the yarn.

When woven into fabric, slubby yarns create a distinctive texture. The thicker sections of the yarn create a more prominent, often slightly raised, surface compared to the thinner sections. This creates a visual and tactile irregularity that is a hallmark of slubby fabrics. The appearance can range from subtle variations to more pronounced, almost bumpy textures.

Slubby yarns and fabrics are often found in casual wear and home furnishings. They are frequently used in linen, cotton, and silk textiles. The unevenness can add character and a handmade feel to the material. While sometimes considered a flaw in conventional textile production, the deliberate creation of slubby effects is a design choice that imparts a unique aesthetic. The term "slub" specifically refers to these thickened portions within the yarn.