Method for applying stretched elastic strands to a substrate
AssigneeNordson Corporation
InventorWesley C. Fort
Life of this patent
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Abstract
A system and method applies a plurality of stretched elastic strands onto a substrate such as along a predetermined non-linear path, to form a leg gather of a disposable absorbent personal hygiene product. The system includes an adhesive dispensing module for individually applying adhesive to the elastic strands. A heated strand guide located downstream of the dispensing module includes guide openings for the respective elastic strands. A drive mechanism coupled to the strand guide actuates movement of the strand guide in a direction transverse to the movement direction of the substrate, thereby causing the elastic strands to be applied to the substrate along the predetermined non-linear path.
Claims5
A method of applying a plurality of stretched elastic strands onto a substrate, comprising:
- dispensing adhesive individually onto the elastic strands;
- passing the elastic strands with adhesive through a strand guide located proximate to the substrate as the elastic strands move in a machine direction;
- heating the strand guide to reheat the adhesive before application to the substrate and to prevent adhesive build up on the strand guide as the elastic strands pass through the strand guide;
- and
- adhering the elastic strands to the substrate after passing the elastic strands through the strand guide.
Dependencies are inferred from the claim text.