Sealing pattern for tampon overwrap
View Patent ↗Tampons are packaged in a substantially cylindrical wrapper formed of a flexible, sheet-like material that is closed with one or more attachment zones having one or more gaps crossed by a line of weakness. The wrapper is closed at both ends and has a longitudinal seam area in which overlapping portions of the flexible, sheet-like material are attached. The longitudinal seam area comprises a substantially longitudinal attachment zone with a first edge and a second edge that defines a seam area. The line of weakness has a first end disposed within the seam area at a distance from a first end of the wrapper package; extends through a gap in the substantially longitudinal attachment zone; continues generally circumferentially about the wrapper; and terminates at a second end disposed within the seam area at the second edge of the substantially longitudinal attachment zone. The line of weakness extends across the seam area, and the wrapper can be removed as a single piece.
1. A packaged tampon comprising a substantially cylindrical wrapper formed of a flexible, sheet-like material that contains the tampon, wherein:
a. the substantially cylindrical wrapper is closed at both ends and has a longitudinal seam area in which overlapping portions of the flexible, sheet-like material are attached to each other to form a tubular structure;
b. the longitudinal seam area comprises a substantially longitudinal attachment zone with a first edge and a second edge that together define a seam area; and wherein:
c. a line of weakness:
i. has a first end disposed within the seam area at the first edge of the substantially longitudinal attachment zone and disposed at a first distance from a first end of the tubular structure;
ii. extends through a gap in the substantially longitudinal attachment zone and to the second edge of the substantially longitudinal attachment zone;
iii. continues generally circumferentially about the wrapper; extends through the gap in the substantially longitudinal attachment zone; and
iv. terminates at a second end disposed within the seam area at the second edge of the substantially longitudinal attachment zone, the second end disposed at a second distance from the first end, wherein the second distance from the first end is different than the first distance from the first end.
2. The packaged tampon of claim 1 , wherein the packaged tampon has a lower portion disposed at a withdrawal end of the tampon and a central portion disposed between the withdrawal end and an insertion end of the tampon.
3. The packaged tampon of claim 2 , wherein the line of weakness is formed of perforations having open portions and land portions, each having a length.
4. The packaged tampon of claim 3 , wherein the ratio of open portion length to land portion length is greater in the central portion of the packaged tampon than in the lower portion.
5. The packaged tampon of claim 4 , wherein the ratio of open portion length to land portion length is about 2:1 in the central portion of the packaged tampon.
6. The packaged tampon of claim 4 , wherein the ratio of open portion length to land portion length is between 2:3 and about 3:2 in the lower portion of the packaged tampon.
7. The packaged tampon of claim 1 , wherein the line of weakness is inclined at an angle from a plane perpendicular to the longitudinal axis of the packaged tampon.
8. The packaged tampon of claim 1 , wherein at least one gap in the substantially longitudinal attachment zone has discrete attachments disposed within the gap.