Absorbent sanitary article and a method for producing the same
View Patent ↗An absorbent sanitary article including a chassis and at least one transverse elastic element including in a unitary component an elastic gasketing portion extending between two side edges of the chassis and two elastic side panels extending transversally outwardly beyond respective side edges of the chassis.
1 . An absorbent sanitary article comprising:
a chassis having a longitudinal axis, two side edges, rear and front transverse edges, rear and front waist sections, and a crotch section intermediate between the rear and front waist sections, the chassis including a topsheet having an outer surface which in use is adapted to be in contact with a user's skin, a backsheet, and an absorbent core set between the topsheet and the backsheet, and
at least one transverse elastic element applied on the outer surface of the topsheet in at least one of said rear and front waist sections, the at least one transverse elastic element comprising in a unitary component:
an elastic gasketing portion elastically stretchable in a transverse direction orthogonal to said longitudinal axis and extending between the two side edges of the chassis,
two elastic side panels elastically stretchable in said transverse direction and extending transversally outwardly beyond respective side edges of the chassis, and
two non-elastic portions each extending between a respective elastic side panel and the elastic gasketing portion,
wherein the at least one transverse elastic element is attached to the chassis along a C-shaped attachment profile including two opposite longitudinal portions adjacent to respective side edges of the chassis and a transverse outer portion adjacent to one of said rear and front transverse edges of the chassis,
wherein a central inner region of the elastic gasketing portion is detached from the outer surface of the topsheet to form a pocket open toward said crotch section, and
wherein said elastic gasketing portion and said two elastic side panels have different transverse elasticity.
2 . The absorbent sanitary article of claim 1 , wherein said two non-elastic portions are overlapped to said two opposite longitudinal portions of said C-shaped attachment profile.
3 . The absorbent sanitary article of claim 1 , wherein the at least one transverse elastic element comprises a central transversally stretchable elastic film extending between said two non-elastic portions and two lateral transversally stretchable elastic films extending laterally outwardly of the respective non-elastic portions.
4 . The absorbent sanitary article of claim 1 , wherein each of said two elastic side panels has a transverse elasticity comprised between 160-200% and wherein said elastic gasketing portion has a transverse elasticity comprised between 50-100%.
5 . The absorbent sanitary article of claim 1 , wherein said at least one transverse elastic element is attached to the chassis by glue along said transverse outer portion and by welding and/or glue along said two opposite longitudinal portions.
6 . The absorbent sanitary article of claim 1 , wherein said two elastic side panels have respective non-elastic distal portions carrying respective fastening formations.
7 . The absorbent sanitary article of claim 1 , wherein said at least one transverse elastic element comprises an outer layer of impermeable plastic material.
8 . The absorbent sanitary article of claim 7 , wherein said outer layer of impermeable plastic material forms a surface of the elastic gasketing portion facing the outer surface of the topsheet.
9 . The absorbent sanitary article of claim 1 , wherein said at least one transverse elastic element comprises at least one layer of non-woven material.
10 . The absorbent sanitary article of claim 9 , wherein said at least one layer of non-woven material forms a surface of the elastic gasketing portion which in use is adapted to be in contact with the user's skin.