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US 12,721,757 B2Granted
Method for processing nonwoven sheets by combined activation and bonding
AssigneeFibertex Personal Care A/S
InventorMorten Rise Hansen
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Abstract
The invention relates to a method for manufacturing nonwoven sheets that includes a step of combined activation and bonding. The invention further relates to an application of this method to the making of elastically stretchable nonwoven laminate sheets, sheets produced by such method, and to uses for such sheets.
Claims11
A method for manufacturing a nonwoven sheet, comprising:
- (a) providing a precursor sheet;
- and
- (b) concurrently activating and bonding the precursor sheet to obtain the nonwoven sheet,
- wherein the activating comprises passing the precursor sheet between a pair of activation rollers having a plurality of meshing ribs and grooves arranged in parallel on their collaborating surfaces, thereby stretching the precursor sheet in a direction perpendicular to the orientation of the ribs and grooves, and
- wherein the bonding comprises an embossing of bonding points into the precursor sheet while it is stretched, the embossing being effected by embossing projections that are arranged along crests of the ribs and/or grooves on the activation roller surfaces.
2 more elements
Dependencies are inferred from the claim text.