Mechanical closure tape
View Patent ↗The present invention relates to a mechanical closure tape in roll form. The closure tapes are useful in the manufacture of disposable articles, particularly disposable diapers. The closure tape includes a fastening tape having a mechanical closure member and a release tape that completely covers the mechanical closure member during storage and transport of the tape and/or the disposable article.
1. A composite tape in a roll from which a closure tab for disposable articles can be cut, comprising
a fastening tape comprising (a) a backing film having a fastening surface, the backing film having a bonding extension section and an engaging extension section, wherein the bonding extension section attaches the fastening tape to a disposable absorbent article; and (b) mechanical fastening elements projecting from the backing film at the engaging extension section; and
a release tape comprising a backing layer and an adhesive layer, wherein the backing layer of the release tape entirely covers the mechanical fastener elements of the fastening tape and wherein the fastening tape is releasably attached to the release tape.
2. The composite tape of claim 1 wherein the fastening tape further comprises an adhesive layer in contact with the fastening surface of the backing layer.
3. The composite tape of claim 2 wherein the adhesive layer extends continuously along the entire backing layer.
4. The composite tape of claim 2 wherein the adhesive layer adheres to the bonding extension section of the backing film.
5. The composite tape of claim 1 wherein the backing film further comprises an intermediate section positioned between the bonding extension section and the engaging extension section.
6. The composite tape of claim 5 wherein the intermediate section is extensible.
7. The composite tape of claim 1 wherein at least one of the backing film and the backing layer comprises a polymeric film.
8. The composite tape of claim 7 wherein the polymeric film is nonwoven.
9. The composite tape of claim 1 wherein at least one of the backing film and backing layer comprises paper.
10. The composite tape of claim 1 wherein at least one of the backing film and the backing layer comprises an extensible composite.
11. The composite tape of claim 1 wherein at least one of the backing film and the backing layer comprises a textile.
12. The composite tape of claim 1 wherein the bonding section adhesively attaches to the disposable absorbent article.
13. The composite tape of claim 1 wherein the bonding section is welded to the disposable absorbent article.
14. The composite tape of claim 1 wherein the release tape has an outer fold and an inner fold.
15. The composite tape of claim 14 wherein the outer fold of the release tape has a plurality of perforations for releasing the fastening tape from the release tape.
16. The composite tape of claim 1 wherein the mechanical fastening elements comprise hooks.