Nitka

Nitka is a slender strand of fiber used for sewing, embroidery, weaving and other textile work. In Slavic languages, notably Polish nitka, Russian нитка, Ukrainian нитка, the term denotes a thread: a continuous filament drawn from fibers and typically twisted from one or more strands. Threads are produced from natural fibres such as cotton, linen, silk, and wool, as well as synthetic fibres such as polyester, nylon and acrylic. They may be smooth or textured and can have coatings to improve strength, lustre, or abrasion resistance.

In textile practice, a thread is usually finer than yarn and designed to pass through fabric with a needle; yarn is thicker and used for knitting, crochet or weaving. The thickness of a nitka is described by systems such as tex or denier, or by manufacturer numbers. Production involves drawing fibres into a continuous strand and twisting to achieve the desired strength and elasticity; many threads are also plied from multiple filaments.

There are many specialized threads for different applications, including garment sewing threads, embroidery threads, and technical or industrial threads that offer high strength, heat resistance, or chemical resistance. Nitka plays a fundamental role in clothing, upholstery, crafts, and other textile industries, and the term remains a basic everyday word for thread in many languages.