Heat set machines – This is a process closely linked to the carpet industry and is part of the yarn preparation. The implementation and use of weft feeders on overheated stream machines (named GVA made by Power Heat Set, Germany), has been very successful in the USA and there are machines throughout the world where the same implementation could be made.

There are usually generic tension control units to ensure these heat set machines already available, but installations with IRO weft feeders have proven to give several advantages, namely:

• Better control of the yarn input tension to ensure a more consistent quality at the end of the process.

• Lower yarn consumption in the tufting process with yarn processed with weft feeders as part of the system. ie. They can produce carpet with lower loop density. (NB In the case of one customer, they calculated savings in yarn consumption by as much as 20%.)

For information, the approximate total power consumption for a set 48 LUNA –X2(O) running all together at 600m/mm with various input tensions, is as follows:

For more information please contact the IRO Service department service@iro.se