Sewing thread; of synthetic filaments, whether or not put up for retail sale

HS code 540110 covers the production and trade of sewing thread made from synthetic filaments. This industry plays a crucial role in the global textile and apparel supply chain, providing an essential component for garment manufacturing and other textile applications. As a highly specialized and technical industry, the production of synthetic sewing thread is a key part of the broader textile economy.

The production of synthetic sewing thread involves a multi-step process. First, synthetic filaments such as polyester or nylon are extruded and drawn to the desired thickness. These filaments are then twisted together to form the thread, which may undergo additional processing such as waxing, mercerization, or dyeing to impart specific properties. The finished thread is then wound onto spools or packaged for distribution to textile manufacturers and other end-users.

The main inputs required for the production of synthetic sewing thread include synthetic polymer resins, such as polyester or nylon, as well as specialized machinery for extruding, twisting, and finishing the thread. Additional inputs may include waxes, dyes, and other chemicals used to enhance the thread's performance characteristics. The industry also relies on a skilled workforce capable of operating the production equipment and ensuring consistent quality.

The primary output of HS code 540110 is sewing thread made from synthetic filaments. This thread is a critical component used in the manufacture of a wide range of textile products, including clothing, upholstery, and industrial textiles. Other HS codes that may consume the output of this industry include 5401 Synthetic filaments; yarn, incl. monofilament of less than 67 decitex, 5402 Synthetic filament yarn, incl. synthetic monofilament of less than 67 decitex, and 5404 (Synthetic monofilament of 67 decitex or more and of which no cross-sectional dimension exceeds 1 mm; strip and the like (for example, artificial straw) of synthetic textile materials of an apparent width not exceeding 5 mm).