Method for welding component of a multi-layer construction

Details Method for welding component of a multi-layer construction Method for welding component of a multi-layer construction

2007-07-13

2009-08-11

Miggins, Michael C (Department: 1794)

Stock material or miscellaneous articles

Hollow or container type article

Nonself-supporting tubular film or bag

C428S035700, C428S035900, C428S053000, C228S244000

Reexamination Certificate

active

07572492

ABSTRACT:
A method for welding together two layers or workpieces within a multi-layer assembly in which laser light is directed through an outer layer of the assembly, allowing transmission of the laser light from its outer surface to at least within the vicinity of its inner surface substantially without any absorption of energy from the laser light. The laser light is directed towards a layer having an absorbent component, corresponding to a portion thereof, capable of absorbing laser light within a given wavelength range thereby creating a welded area between a surface of the layer having the absorbent component and a surface of a layer facing the layer having the absorbent component. The absorbent component can be provided either within the bulk of a layer or it can be provided as a separate surface layer on one or both surfaces of a layer.

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