초록 ▼

Medical dressings are disclosed that include multiple exposed pressure sensitive adhesives. One of the pressure sensitive adhesives includes a bioactive agent and is substantially contact transparent. In some embodiments, all of the adhesives are substantially contact transparent. Also provided are

Medical dressings are disclosed that include multiple exposed pressure sensitive adhesives. One of the pressure sensitive adhesives includes a bioactive agent and is substantially contact transparent. In some embodiments, all of the adhesives are substantially contact transparent. Also provided are methods of manufacturing the medical dressings. By providing multiple exposed pressure sensitive adhesives, the pressure sensitive adhesive formulations can be varied to provide desired properties in different areas of the dressing. A pressure sensitive adhesive that exhibits relatively high tack to skin may be provided around the periphery of the dressing while a pressure sensitive adhesive incorporating a bioactive agent is provided in the center of the dressing. Alternatively, a higher tack pressure sensitive adhesive may be provided at two opposing sides of the dressing with a bioactive adhesive located in between the opposing portions of higher tack adhesive. The present invention also provides methods of transferring adhesives using a mask such that the adhesive is transferred to selected areas of a receiving surface. The mask may be provided in the form of a liner including a plurality of voids formed therein.

대표청구항 ▼

1. A method of transferring an adhesive to a substrate comprising:providing a mask liner comprising a plurality of voids formed therein; locating a receiving surface proximate a first side of the mask liner, wherein a portion of the receiving surface is exposed through at least one void of the plura

1. A method of transferring an adhesive to a substrate comprising:providing a mask liner comprising a plurality of voids formed therein; locating a receiving surface proximate a first side of the mask liner, wherein a portion of the receiving surface is exposed through at least one void of the plurality of voids in the mask liner; providing transfer adhesive on a transfer liner; and transferring at least a portion of the transfer adhesive to the portion of the receiving surface exposed through the at least one void in the mask liner.