silkiness

Silkiness is the quality of possessing a smooth, soft, and lustrous texture reminiscent of silk. It is a perceptual attribute used to describe the tactile feel of fabrics, surfaces, skin, hair, and even some foods. Because silkiness is subjective, it is typically assessed by sensory evaluation and, in scientific settings, by measuring surface roughness, friction, and lubricity.

In textiles, silkiness can indicate the intrinsic properties of the fiber such as fineness, length, and smooth surface. Genuine silk fibers have a triangular cross-section producing low surface roughness and natural luster; finishing techniques such as singeing, calendering, and polishing enhance silkiness. Modern textiles can emulate silkiness with blends and synthetic fibers like viscose, rayon, or high-tenacity polyester, often with added lubricants or silicone finishes.

In cosmetics and haircare, silkiness describes the feel of skin or hair after use of products containing silk proteins, amino acids, or silicones that create a lubricating film and reduce friction.

In food science, "silky" describes a smooth, creamy texture as in silken tofu or certain desserts.

Describing silkiness typically relies on subjective scales, but instrumentally, researchers may measure friction coefficients between a probe and a surface, or surface roughness via profilometry.

Silkiness is not a fixed property; it depends on context, lighting, and individual perception.