In yarn spinning, different compositions, lengths, diameters, or colors may be combined to create a blend.
[1][3] There are several synonymous terms: a combination yarn is made up of two strands of different fibers twisted together to form a ply;[1] a mixture or mixed cloth refers to blended cloths in which different types of yarns are used in warp and weft sides.
[12]: 6 Continuous testing is carried out to determine the best fiber blends and the percentages that are best suited to specific uses.
Polyester is the most frequently used synthetic fibre, it has earned the name, "workhorse" fiber of the industry.
The staple form of the Polyester fibers has been referred as "big mixer" because of its compatibility in blending.
[13] Products with blends, mixtures, and combinations may have properties that differ from those obtained with a single fiber.
This blending can be used to make cotton-like fabrics with improved functionality such as wrinkle resistance and dimensional stability.
[14] Blending is also used to describe the process of combining small amounts of the same fibers from various lots to produce a uniform result.
Spandex filament may be wrapped with cotton fibers to form a core spun yarn.
[18] Grey melange, marl and gaspe are examples of blending fibers and yarns.