Multilayer absorbent article
View Patent ↗An absorbent feminine care article ( 20 ) having a longitudinal direction ( 22 ), a lateral direction ( 24 ), first and second longitudinally opposed end portions ( 72, 72 a ), and an intermediate portion ( 76 ) located between the end portions. The article ( 20 ) comprises an absorbent body structure ( 30 ) sandwiched between a cover ( 26 ) and a baffle ( 28 ). In a particular aspect, the absorbent structure ( 30 ) can include an intake layer ( 32 ) and a shaping layer ( 36 ). In other aspects, the intake layer ( 32 ) and shaping layer ( 36 ) can have differently configured absorbent capacities, differently configured densities, differently configured basis weights and/or differently configured sizes which are selectively arranged to provide desired combinations of liquid intake rate, absorbent retention capacity, shape maintenance, and aesthetics.
1. An absorbent feminine care article having a longitudinal direction, a lateral direction, first and second longitudinally opposed end portions, and an intermediate portion located between said end portions, said article comprising:
a liquid-permeable cover;
a baffle; and
an absorbent body sandwiched between the cover and baffle, said absorbent body including an intake layer and a shaping layer;
wherein
said shaping layer is positioned between said cover and said baffle;
said intake layer is positioned between said cover and said shaping layer;
said shaping layer includes therein a stabilized, thermally-bonded, airlaid, fibrous material having
bicomponent binder fiber,
at least about 5 wt % superabsorbent material, and
not more than about 75 wt % superabsorbent material;
said intake layer includes a stabilized, thermally-bonded, airlaid, fibrous material having bicomponent binder fiber therein;
said intake layer has a density which is less than a density of said shaping layer; and
said intake layer has an area extent which is less than an area extent of said shaping layer.
2. An article as recited in claim 1 , wherein said absorbent body includes a transfer layer which is positioned between said intake layer and said pad shaping layer.
3. An article as recited in claim 1 , wherein said shaping layer has a total absorbent saturation capacity of at least about 5 grams of menses simulant A.
4. An article as recited in claim 1 , wherein said shaping layer has a total absorbent retention capacity of at least about 5 grams of menses simulant A.
5. An article as recited in claim 1 , wherein said shaping layer has a basis weight of at least about 100 g/m 2 and not more than about 400 g/m 2 .
6. An article as recited in claim 1 , wherein said shaping layer has a density of at least about 0.06 g/cm 3 and not more than about 0.3 g/cm 3 .
7. An article as recited in claim 1 , wherein said intake layer has a total absorbent capacity which is less than a total absorbent capacity of said shaping layer.
8. An article as recited in claim 1 , wherein said shaping layer includes a stabilized airlaid, fibrous material having woodpulp fluff and the bicomponent binder fiber therein.
9. An article as recited in claim 8 , wherein said intake layer includes a stabilized airlaid, fibrous material having woodpulp fluff and the bicomponent binder fiber therein.
10. An absorbent feminine care article having a longitudinal direction, a lateral direction, first and second longitudinally opposed end portions, and an intermediate portion located between said end portions, said article comprising:
a liquid-permeable cover;
a baffle; and
an absorbent body sandwiched between the cover and baffle, said absorbent body including an intake layer and a shaping layer;
wherein
said shaping layer is positioned between said cover and said baffle;
said intake layer is positioned between said cover and said shaping layer;
said shaping layer has a shaping-layer basis weight of at least about 100 g/m 2 and not more than about 400 g/m 2 , a shaping-layer density of at least about 0.06 g/cm 3 and not more than about 0.3 g/cm 3 , a shaping-layer total absorbent saturation capacity of at least about 5 grams and not more than about 30 grams of menses simulant A, and a shaping-layer area of at least about 100 cm 2 and not more than about 150cm 2 ;
said intake layer has an intake-layer density which is less than the shaping-layer density, is at least about 0.01 g/cm 3 , and is not more than about 0.1 g/cm 3 ;
said intake layer has a basis weight of at least about 30 g/m 2 and not more than about 250 g/m 2 ;
said intake layer has an intake-layer total absorbent capacity which is less than the shaping-layer total absorbent capacity, and has an intake-layer area which is less than the shaping-layer area;
said intake layer includes a first, stabilized, thermally-bonded, airlaid, fibrous material having woodpulp fluff and bicomponent binder fiber therein; and
said shaping layer includes therein a second, stabilized, thermally-bonded, airlaid, fibrous material having
woodpulp fluff and bicomponent binder fiber,
at least about 5 wt % superabsorbent material, and
not more man about 75 wt % superabsorbent material.
11. An article as recited in claim 10 , wherein said intake layer has a lateral width which is at least about 25% of a lateral width of the shaping layer, and is up to about 85% of the lateral width of the shaping layer.
12. An article as recited in claim 11 , wherein said intake layer has a longitudinal length which spans at least about 15% of a longitudinal length of the shaping layer, and up to about 90% of the longitudinal length of the shaping layer.
13. An article as recited in claim 10 , wherein said intake layer has a lateral width which is at least about 25% of a lateral width of the shaping layer, and is up to about 75% of the lateral width of the shaping layer.
14. An article as recited in claim 13 wherein said intake layer has a longitudinal length which spans at least about 15% of a longitudinal length of the shaping layer, and up to about 90% of the longitudinal length of the shaping layer.