Rieter

Influencing factors

Index

  • The larger the dirt particles, the better they can be removed.
  • Since almost every blowroom machine can shatter particles, as many impurities as possible should be eliminated at the start of the process.
  • Opening should be followed immediately by cleaning (if possible, in the same machine).
  • The higher the degree of opening, the higher the degree of cleaning.
  • A very high cleaning effect is almost always obtained at the expense of high fiber loss.
  • In borderline cases, there should be slightly less cleaning in the blowroom and slightly more at the card.
  • Where a waste recycling installation is in use, a somewhat higher waste percentage can be accepted in the blowroom.
  • Higher roller speeds result in a better cleaning effect, but also more stress on the fibers.
  • Above a certain optimum roller speed, no improvement in the elimination capability is achieved, but stress on the fibers goes on rising and so does fiber loss.
  • Cleaning is made more difficult if the impurities of dirty cotton are distributed through a larger quantity of material by mixing with clean cotton.
  • Damp stock cannot be cleaned as well as dry.
  • High material throughput reduces the cleaning effect, and so does a thick feed sheet.