Absorbent article with improved bonding
An absorbent article is provided. The absorbent article includes a liquid pervious film topsheet having a body facing surface and a garment facing surface; a backsheet having a body facing surface and a garment facing surface; an absorbent core having a body facing surface and a garment facing surface, the absorbent core being provided between the topsheet and the backsheet; and a bonding layer having a body facing surface and a garment facing surface. The bonding layer having a basis weight of less than 100 gsm and positioned between the absorbent core and the topsheet, the bonding layer being bonded to the topsheet forming a bond pattern. The bond pattern covering at least about 10% to about 20% of the absorbent article.
1. A feminine hygiene napkin comprising:
a liquid pervious film topsheet having a body facing surface and a garment facing surface, the film topsheet comprising polyethylene;
a backsheet having a body facing surface and a garment facing surface;
an absorbent core having a body facing surface and a garment facing surface, the absorbent core being provided between the topsheet and the backsheet; and
a bonding layer having a basis weight of less than 100 gsm and comprising unmodified cellulosic fibers or chemically modified wood pulp, and thermoplastic sheath/core bicomponent fibers comprising a polyethylene sheath component, the bonding layer being positioned between the absorbent core and the topsheet,
the bonding layer being directly bonded to the topsheet in a bond pattern, wherein discrete bonds forming the bond pattern are formed by melt fusing the topsheet to the bonding layer,
wherein the bond pattern covers at least about 10% to about 20% of a surface area of the absorbent article,
the bond pattern has a sized spacing between adjacent bonding points sufficient to have inscribed therein a circle having a diameter of about 1 mm to about 12 mm; and
a majority of the discrete bonds have an area less than 2.5 square millimeters.
2. The feminine hygiene napkin of claim 1 , wherein a body facing surface of the bonding layer comprises a fibrous matrix comprising the cellulosic fibers and the thermoplastic fibers, wherein a ratio of the basis weight of the cellulosic fibers to the basis weight of the thermoplastic fibers is greater than about 1:1.
3. The feminine hygiene napkin of claim 1 , wherein the bonding layer is part of the absorbent core.
4. The feminine hygiene napkin of claim 1 , wherein the bicomponent fibers are from about 2 to about 10 decitex.
5. The feminine hygiene napkin of claim 1 , wherein the absorbent article is a sanitary napkin or panty liner.
6. A feminine hygiene napkin comprising:
a liquid pervious film topsheet having a body facing surface and a garment facing surface, the film topsheet comprising polyethylene;
a backsheet having a body facing surface and a garment facing surface;
an absorbent core having a body facing surface and a garment facing surface, the absorbent core being provided between the topsheet and the backsheet; and
a bonding layer having a basis weight of less than 100 gsm and comprising unmodified cellulosic fibers or chemically modified wood pulp, and thermoplastic sheath/core bicomponent fibers comprising a polyethylene sheath component, the bonding layer being positioned between the absorbent core and the topsheet,
the bonding layer being directly bonded to the topsheet in a bond pattern, wherein discrete bonds forming the bond pattern are formed by melt fusing the topsheet to the bonding layer,
wherein the bond pattern covers at least about 10% to about 20% of a surface area of the feminine hygiene napkin, and
the bond pattern has a sized spacing between adjacent bonding points sufficient to have inscribed therein a circle having a diameter of about 1 mm to about 12 mm.
7. The feminine hygiene napkin of claim 6 , wherein a body facing surface of the bonding layer comprises a fibrous matrix comprising the cellulosic fibers and the thermoplastic fibers, wherein a ratio of the basis weight of the cellulosic fibers to the basis weight of the thermoplastic fibers is greater than about 1:1.
8. The feminine hygiene napkin of claim 7 , wherein the ratio of the basis weight of the cellulosic fibers to the basis weight of the thermoplastic fibers is from about 1:1 to about 4:1.
9. The feminine hygiene napkin of claim 6 , wherein the bicomponent fibers are from about 2 to about 10 decitex.
10. The feminine hygiene napkin of claim 6 , wherein a garment facing surface of the bonding layer comprises a carrier web.