Absorbent garments with improved fit in the front leg area
View Patent ↗Absorbent articles with carefully controlled stretch properties are provided. Of particular advantage, the carefully controlled stretch properties can prevent too much tension in the front leg area of the garment. The outer cover is constructed such that the front leg zone has a tension of less than about 1200 grams-force at about 160% to about 175% stretch in the lateral direction, and each of the front waist zone, the front crotch zone, the back crotch zone, the back leg zone, and the back waist zone of the outer cover has a tension of greater than about 1500 grams-force at about 160% to about 175% stretch in the lateral direction. Methods of making such an absorbent article are also provided.
1. An absorbent article defining a lateral direction and a longitudinal direction, the absorbent article comprising:
an outer cover comprising an elastic material;
a bodyside liner;
an absorbent structure positioned in between the outer cover and the liner; and
wherein the outer cover defining six equal distant zones in the longitudinal direction, the zones including a front waist zone, a front leg zone, a front crotch zone, a back crotch zone, a back leg zone, and a back waist zone, wherein the outer cover is constructed such that the front leg zone has a tension of less than about 1200 grams-force at about 160% to about 175% stretch in the lateral direction, and wherein each of the front waist zone, the front crotch zone, the back crotch zone, the back leg zone, and the back waist zone of the outer cover has a tension of greater than about 1500 grams-force at about 160% to about 175% stretch in the lateral direction.
2. The absorbent article as in claim 1 , wherein the front leg zone has a tension of from about 300 grams-force to about 100 grams-force at about 160% to about 175% stretch in the lateral direction.
3. The absorbent article as in claim 1 , wherein each of the front waist zone, the back leg zone, and the back waist zone of the outer cover has a tension of from about 1600 grams-force to about 2750 grams-force at about 160% to about 175% stretch in the lateral direction.
4. The absorbent article as in claim 1 , wherein the outer cover defines apertures within the front leg zone.
5. The absorbent article as in claim 4 , wherein the each of the front waist zone, the front crotch zone, the back crotch zone, the back leg zone, and the back waist zone of the outer cover are substantially free from apertures.
6. The absorbent article as in claim 4 , wherein the apertures comprise linear slits directed in the longitudinal direction.
7. The absorbent article as in claim 6 , wherein the linear slits have a length in the longitudinal direction of from about 1 mm to about 20 mm.
8. The absorbent article as in claim 4 , wherein the apertures are substantially circular when under substantially no stretching force in any direction.
9. The absorbent article as in claim 8 , wherein the apertures have a diameter of from about 0.1 mm to about 5 mm.
10. The absorbent article as in claim 4 , wherein the front leg zone defines three equal distant sections in the lateral direction, the sections including two side edge sections surrounding a center section, wherein the apertures are defined in both side edge sections of the front leg zone.
11. The absorbent article as in claim 10 , wherein the center section of the front leg zone is substantially free of any apertures.
12. The absorbent article as in claim 4 , wherein the apertures comprise diamond shaped slits having a slit length in the longitudinal direction that is at least about twice a slit width in the lateral direction.
13. The absorbent article as in claim 1 , wherein the outer cover comprises at least three pieces joined together such that the front leg zone is formed from a separate piece than the front waist zone, the front crotch zone, the back crotch zone, the back leg zone, and the back waist zone of the outer cover.
14. The absorbent article as in claim 13 , wherein the front leg zone of the outer cover comprises a different material than each of the front waist zone, the front crotch zone, the back crotch zone, the back leg zone, and the back waist zone of the outer cover.
15. The absorbent article as in claim 1 further comprising an adhesive joining the outer cover, the bodyside liner, and the absorbent structure, wherein less adhesive is present in the front leg zone than in each of the front waist zone, the front crotch zone, the back crotch zone, the back leg zone, and the back waist zone.