PROCESS AND APPARATUS FOR PRODUCING A VOLUMINOUS NONWOVEN FABRIC
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United States of America Patent
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Issued Date -
May 2, 2024
app pub date -
May 17, 2023
filing date -
May 17, 2022
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Abstract
Provided is a process for producing a nonwoven fabric. The process includes extruding a plurality of filaments from a spinneret, the filaments being at least bicomponent filaments; depositing the filaments to form a nonwoven fabric on an element collecting the filaments; performing a bonding of the nonwoven fabric; increasing the thickness of the nonwoven fabric by crimping at least part of the filaments by heating the nonwoven fabric; and, preferably performing a setting of the nonwoven fabric, wherein the bonding and the increasing the thickness steps are performed substantially simultaneously by means of a heated calendar. Also provided is the nonwoven fabric formed using the process and an apparatus for carrying out the process.
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