Method and device for producing composite nonwovens by means of hydrodynamic needling
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United States of America Patent
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Jan 18, 2005
Grant Date -
Feb 6, 2003
app pub date -
Aug 13, 2002
filing date -
Feb 24, 2000
priority date (Note) -
Expired
status (Latency Note)
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Abstract
Method of producing a composite nonwoven for receiving and storing liquids or the like, comprising a carded nonwoven, which is treated in order to consolidate it, and a pulp layer, such as a wood pulp fiber layer, applied to the consolidated carded nonwoven and brought into secure contact with same, characterized in that the carded nonwoven is consolidated dry before being coated with the super-absorbent material, then the layer formed from the pulp fibers is applied to this pre-consolidated carded nonwoven and everything is interconnected.
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