Method and device for producing composite nonwovens by means of hydrodynamic needing
AssigneesFleissner GmbH & Co., Maschinenfabrik, Orlandi, Inc.
InventorVittorio Orlandi
Life of this patent
Estimating the term…
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, characterised 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.
Claims9
Device for producing a composite nonwoven for receiving and storing liquids in a continuous plant comprising:
- a) a carding machine web-laying device for forming a carded nonwoven,
- b) a pre-consolidating device for carrying out only light bonding of fibers of the carded nonwoven in a dry state to provide a pre-consolidated nonwoven,
- c) an air-laying device downstream of the pre-consolidating device for applying a layer of pulp fibers to the pre-consolidated nonwoven,
- d) an interconnecting device for interconnecting the pulp fibers and the pre-consolidated nonwoven, and
- e) a dryer downstream of the interconnecting device.
Dependencies are inferred from the claim text.