Method of heat-sealing adhesive bandage and adhesive bandage mad

Details Method of heat-sealing adhesive bandage and adhesive bandage mad Method of heat-sealing adhesive bandage and adhesive bandage mad

1997-05-15

1999-07-27

Apley, Richard J.

Fabric (woven, knitted, or nonwoven textile or cloth, etc.)

Nonwoven fabric

Including strand or fiber material which is of specific...

602 57, 442286, 442288, 442290, B32B 502

Patent

active

059289724

ABSTRACT:
To improve adhesive power to the skin without impairing excellent gas permeability and water vapor permeability when a laminate film comprising a film, a fiber fabric and an adhesive layer is sealed by heating at the same time in order to prevent an invasion of liquid from a side of the adhesive bandage.
In an adhesive bandage comprising a base sheet made by laminating a film on a thermoplastic fiber fabric and an adhesive layer set on a surface of the thermoplastic fiber fabric of the base sheet, the adhesive bandage is pattern-sealed. The heat seal is preferably performed under the condition that the film does not melt but the thermoplastic fiber fabric melts, and only the periphery of the adhesive bandage may be pattern-sealed.

REFERENCES:
patent: 5695376 (1997-12-01), Datta et al.

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