Absorbent article having laminated second sheet with through-holes
An absorbent article ( 1 ) comprising a top sheet ( 2 ), a back sheet ( 3 ), an absorbent body ( 4 ) disposed therebetween and a second sheet ( 10 ) disposed between the top sheet ( 2 ) and the absorbent body ( 4 ), wherein the second sheet ( 10 ) is composed of a laminate having a nonwoven fabric layer ( 11 ) and a plastic film layer ( 12 ) from the top sheet side and has a plurality of through-holes ( 13 ).
1. An absorbent article comprising a top sheet, a back sheet, an absorbent body disposed therebetween and a second sheet disposed between the top sheet and the absorbent body, wherein
the second sheet is composed of a laminate having a nonwoven fabric layer and a plastic film layer, the nonwoven fabric layer being closer to the top sheet than the plastic film layer,
the nonwoven fabric layer is made of a point-bonded nonwoven fabric that is formed by heat-embossing a thermal fusion short-fiber web with an embossing roll to be formed into a nonwoven fabric and that is formed with a plurality of embossed parts,
the second sheet has a plurality of through-holes that extend into the nonwoven fabric layer and the plastic film layer, and
each of the through-holes extending into the nonwoven fabric layer is larger than the plurality of embossed parts formed on the point-bonded nonwoven fabric.
2. The absorbent article according to claim 1 , wherein each of the through-holes has an area of 0.1 mm 2 to 10 mm 2 .
3. The absorbent article according to claim 1 , wherein each of the plurality of through-holes is formed in a shape that is longer in a longitudinal direction of the absorbent article.
4. The absorbent article according to claim 1 , wherein a total area of the through-holes is larger than that of the embossed parts in an area of 5 cm×5 cm of the second sheet.
5. The absorbent article according to claim 1 , wherein the nonwoven fabric layer is intruded into each of the plurality of through-holes.
6. The absorbent article according to claim 1 , wherein a surface of the back sheet side of the second sheet projects toward the back sheet along an outer edge of the through-hole.
7. The absorbent article according to claim 1 , wherein the nonwoven fabric layer is made of a short-fiber nonwoven fabric and constituent fibers of the short-fiber nonwoven fabric orient in a longitudinal direction of the absorbent article.
8. The absorbent article according to claim 1 , wherein the nonwoven fabric layer and the plastic film layer are joined to each other with an adhesive.
9. The absorbent article according to claim 1 , wherein the nonwoven fabric layer has a lower mass per a unit area than the top sheet.
10. The absorbent article according to claim 1 , wherein the top sheet is made of a heat-embossed nonwoven fabric.
11. The absorbent article according to claim 1 , wherein the top sheet is made of a point-bonded nonwoven fabric or a spunbonded nonwoven fabric.
12. The absorbent article according to claim 11 , wherein the top sheet is made of a spunbonded nonwoven fabric and constituent fibers of the spunbonded nonwoven fabric orient in the longitudinal direction of the absorbent article.
13. The absorbent article according to claim 1 , wherein the top sheet and the second sheet are joined to each other with an adhesive applied in a line.
14. The absorbent article according to claim 1 ,
wherein the plurality of embossed parts are formed on the nonwoven fabric layer of the second sheet at positions where the first plurality of through-holes are not formed.
15. The absorbent article according to claim 1 , wherein each of the plurality of through-holes have an area of 0.1 mm 2 to 10 mm 2 , and each of the plurality of embossed parts have an area of 0.05 mm 2 to 10 mm 2 .
16. The absorbent article according to claim 1 , wherein the plurality of the embossed parts have a different shape from the plurality of the through-holes.
17. The absorbent article according to claim 1 , wherein the plastic film layer is not embossed.