Cotton mill

Cotton mill, the processing of cotton fiber into yarn and referred addition to the type of spinning at the same time the company that carries out this work. The cotton mill has been industrialized since the later 18th century, the necessary machinery were first water-powered (see WaterFrame ) and driven since the 19th century with steam power. Today the cotton industry in Asia focused. Some former mills in Europe have been turned into museums.

Method

Cotton yarns made ​​from staple fibers. Unlike most wool fibers (see worsted ) and the longer natural fibers like flax fibers are cotton fibers relatively short and fine, what their own editing required.

Preparation

The harvested seed coats are sorted, dried and seeded at gins. The seed hairs thus obtained, ie the raw cotton are then pressed into bales for shipment. - Today, these operations can be done by a Baumwollernter in connection with a Module Builder.

After the transport is the loosening and further purification of the hair on a bale opener, as well as on the impact machine (see nose bat ) that delivers both the loosened fibers in watts as a winding form.

Pre-and fine spinning

By carding the winding is formed into a sliver ( pile ) in which by stretching and doubling the fibers are laid in parallel with the band itself is further refined and prepared for the actual spinning. The latter is divided into pre-and fine spinning. When roving the tape is transformed by further stretching and simultaneous turning into a thin thread which is finally taken off in fine spinning to the desired fineness and provided for increasing the strength with strong, consistent yarn twist.