Sanitary napkin with stiff side flaps
AssigneeJohnson & Johnson
InventorHenri Brisebois
Life of this patent
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Abstract
A sanitary napkin having a main body including at least three superposed functional layers, namely a fluid permeable body facing layer, an absorbent layer and a liquid impermeable undergarment facing layer. The sanitary napkin has flaps adapted to be folded around the edges of an undergarment of a wearer. The flaps are physically associated with respective longitudinal sides of the main body and are characterized by a rigidity sufficient to cause the longitudinal sides to fold upwardly when the flaps are parted to receive between them the crotch portion of the undergarment of the user. The upwardly folded longitudinal sides form upstanding barriers to limit the likelihood of failure as a result of side leakage.
Claims12
A sanitary napkin for placement in a crotch portion of an undergarment, said sanitary napkin comprising:
- i) a main body having a pair of opposite longitudinal sides and a pair of opposite transverse sides, said main body including:
- 1) a fluid permeable body facing layer;
- 2) an absorbent layer underneath said fluid permeable body facing layer;
- 3) a liquid impermeable undergarment facing layer underneath said absorbent layer,
- ii) a first flap affixed to a first longitudinal side of said main body in a cantilever arrangement;
- iii) a second flap affixed to a second longitudinal side of said main body in a cantilever arrangement, wherein said first flap and said second flap each have a first position and a second position, said first position said flap acquiring a more acute angular relationship to said liquid impermeable undergarment facing layer than in said second position;
- said flap having a rigidity sufficient to cause the longitudinal side to fold upwardly when said flap is in said second position, wherein when each flap is in said second position and the crotch portion of the undergarment is placed between said flaps, each longitudinal side of said main body is operative to urge the respective flap toward the crotch portion of the under garment.
A sanitary napkin for placement in a crotch portion of an undergarment, said sanitary napkin comprising:
- i) a main body having a pair of opposite longitudinal sides and a pair of opposite transverse sides, said main body including:
- 1) a fluid permeable body facing layer;
- 2) an absorbent layer underneath said fluid permeable body facing layer;
- 3) a liquid impermeable undergarment facing layer underneath said absorbent layer,
- ii) a first flap affixed to a first longitudinal side of said main body in a cantilever arrangement;
- iii) a second flap affixed to a second longitudinal side of said main body in a cantilever arrangement, wherein said first flap and said second flap each have a first position and a second position, said first position said flap acquiring a more acute angular relationship to said liquid impermeable undergarment facing layer than in said second position;
- said flap having a rigidity sufficient to cause the longitudinal side to fold upwardly when said flap is in said second position, wherein each flap further comprises a proximal end portion attached to a respective longitudinal side of said main body and a distal end portion remote from said proximal end, an inner face oriented toward said main body and an outer face oriented away from said main body, a portion of said inner face adjacent said proximal end portion being attached to the respective longitudinal side of said main body, wherein proximal end portion forms a loop that receives the respective longitudinal side of said main body.
Dependencies are inferred from the claim text.