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FAQ Compacting Felts

  • What is the compaction?

    The shrinkage of the knitted fabric is a consequence of the introduction angle of the fabric and of the mechanical...

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  • Where is the localisation of the NOMEX® fibres on the felts? (TOP surface)

    The Nomex ® fibres are always located on the TOP surface of the compacting felt which is in contact with...

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  • Why to use the NOMEX® fibres on the felts?

    The Nomex ® fibres are used on the compacting felts because of their resistance to temperature and steam....

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  • Why to use the PTFE sheets on the compacting machine?

    The PTFE sheet is used on a compacting machine to help the introduction of the fabric between the felt and the...

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  • When to change the PTFE SHEET?

    The PTFE sheet should be changed once there is deterioration on it (fold, crease). These sheets are always in...

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  • What is the gap ?

    The gap is the space between the heated drum and the pressing cylinder.

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  • How to regulate the gap ?

    The adjustment of the gap is as following: the thickness of the felt + the thickness of the Teflon ®...

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  • If the gap is not well regulated, what will happen to the felts?

    If the gap is too small, the felt will be compressed between the drum and the tensioning cylinder. The...

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  • Which parameters on the machine affect the compaction rate?

    The compaction rate is affected by the overfeed, the PTFE sheet , the steam, the felt and the gap. So the...

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  • When to change a compacting felt?

    Once you cannot achieve anymore the requested compacting rate the top surface of the felt is damaging the...

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