A nonwoven web is provided. The nonwoven web contains a side-by-side composite fiber having crimps. The composite fiber contains first and second propylene polymers. The nonwoven web contains a bonded portion that contains a bonding pattern containing zigzag unit patterns. The zigzag unit patterns a
A nonwoven web is provided. The nonwoven web contains a side-by-side composite fiber having crimps. The composite fiber contains first and second propylene polymers. The nonwoven web contains a bonded portion that contains a bonding pattern containing zigzag unit patterns. The zigzag unit patterns are continuous and substantially parallel with a first direction and are disposed in a second direction at predetermined intervals. A triangle formed by adjacent three contact points of a first diagonal line and a second diagonal line of the unit pattern contains a part of the unit pattern that is adjacent to the triangle in the second direction.
대표청구항▼
1. A receiving component of a fastener including a nonwoven web comprising a composite fiber having crimps, the nonwoven web comprising an embossed portion and a non-embossed portion on only one surface of the nonwoven web, the composite fibers in the embossed portion being bonded by thermal compres
1. A receiving component of a fastener including a nonwoven web comprising a composite fiber having crimps, the nonwoven web comprising an embossed portion and a non-embossed portion on only one surface of the nonwoven web, the composite fibers in the embossed portion being bonded by thermal compression by an embossing roll, the composite fibers in the non-embossed portion being capable of engaging with a plurality of hooks of an engaging component,the embossed portion comprising an embossing pattern that comprises a plurality of zigzag unit patterns disposed in a machine direction, each zigzag unit pattern being spaced from each other, the zigzag unit patterns being continuous and parallel with a cross machine direction of the embossing roll,the zigzag unit patterns comprising a plurality of first diagonal lines and a plurality of second diagonal lines that are disposed alternately, the plurality of first diagonal lines being disposed parallel to each other and respective first diagonal lines being inclined to a first side at a same angle to the machine direction, the second diagonal lines being disposed parallel to each other and respective second diagonal lines being inclined to a second side at a same angle to the machine direction, first diagonal lines and second diagonal lines being continuous and connected alternately at an end portion or an adjacent portion to the end portion of the first diagonal lines and second diagonal lines,a triangle formed by adjacent three contact points of a first diagonal line and a second diagonal line adjacent to the first diagonal line of the zigzag unit pattern being overlapped by a part of another zigzag unit pattern that is adjacent to the triangle in the machine direction, where the three contact points are at a location where the first diagonal line and the adjacent second diagonal line connect and at other ends of the first diagonal line and the adjacent second diagonal line, and the triangle is formed when imaginary lines connect the three contact points to each other,the zigzag unit patterns having a ratio of W1/W2 of about 0.1 to about 10, wherein W1 is a width between a first apex on a first side and a second apex on a second side of the zigzag unit pattern in the machine direction and W2 is a width between adjacent contact points of a first diagonal line and a second diagonal line in the cross machine direction,the composite fiber having crimps being a side-by-side composite fiber comprising a first propylene polymer and a second propylene polymer, wherein the first and second propylene polymers are arranged to occupy a first area and a second area of a cross section of the composite fiber, respectively, and extend continuously in a longitudinal direction, and each of the first and second propylene polymers forms at least a portion of peripheral surface continuously along the longitudinal direction of the composite fiber, anda melting point of the first propylene polymer measured by differential scanning calorimetry being higher than a melting point of the second propylene polymer by about 15° C. or more, and a weight ratio of the first propylene polymer to the second propylene polymer being from about 50/50 to about 5/95,wherein an area percentage of the embossed portion to a sum of the embossed portion and the non-embossed portion is in a range of about 20% to about 30%, andthe nonwoven web is a spunbonded nonwoven web. 2. The receiving component of a fastener of claim 1, wherein W1 is from about 3 to about 50 mm, and W3, which is a distance in the machine direction between adjacent zigzag unit patterns, is from about 1 to about 20 mm. 3. The receiving component of a fastener of claim 1, wherein the zigzag unit pattern comprises first diagonal lines and second diagonal lines continuously connected at end portions of each of the first and second diagonal lines. 4. The receiving component of a fastener of claim 2, wherein the zigzag unit pattern comprises first diagonal lines and second diagonal lines continuously connected at end portions of each of the first and second diagonal lines. 5. The receiving component of a fastener of claim 1, wherein the zigzag unit pattern comprises first diagonal lines and second diagonal lines continuously connected at end portions of either of the first or second diagonal lines, and adjacent portions of the end portions of other diagonal lines. 6. The receiving component of a fastener of claim 2, wherein the zigzag unit pattern comprises first diagonal lines and second diagonal lines continuously connected at end portions of either of the first or second diagonal lines, and adjacent portions of the end portions of other diagonal lines. 7. The receiving component of a fastener of claim 1, wherein the embossed portion comprises the zigzag unit pattern disposed in the machine direction with intervals and a dot pattern disposed between adjacent two zigzag unit patterns and formed by bonding the composite fibers via thermal compression using an embossing roll. 8. The receiving component of a fastener of claim 6, wherein the embossed portion comprises the zigzag unit pattern disposed in the machine direction with intervals and a dot pattern disposed between adjacent two zigzag unit patterns and formed by bonding the composite fibers via thermal compression using an embossing roll. 9. The receiving component of a fastener of claim 1, wherein a ratio of melt flow rate of the second propylene polymer divided by a melt flow rate of the first propylene polymer measured in accordance with ASTM D 1238 is from about 0.8 to about 1.2. 10. The receiving component of a fastener of claim 8, wherein a ratio of melt flow rate of the second propylene polymer divided by a melt flow rate of the first propylene polymer measured in accordance with ASTM D 1238 is from about 0.8 to about 1.2. 11. The receiving component of a fastener of claim 1, wherein the first and second propylene polymers are individually a propylene homopolymer or a propylene/ethylene random copolymer having an ethylene unit content ranging about 0 to about 10 mol % and a melt flow rate ranging about 20 to about 200 g/10 minutes as measured in accordance with ASTM D 1238. 12. The receiving component of a fastener of claim 10, wherein the first and second propylene polymers are individually a propylene homopolymer or a propylene/ethylene random copolymer having an ethylene unit content ranging 0 to about 10 mol % and a melt flow rate ranging about 20 to about 200 g/10 minutes as measured in accordance with ASTM D 1238. 13. The receiving component of a fastener of claim 1, wherein the nonwoven web for a receiving component of a fastener comprises a laminate in which the nonwoven web comprising composite fibers having crimps is laminated as an outermost layer of the laminate and at least one layer is laminated on a backside of the nonwoven web. 14. The receiving component of a fastener of claim 12, wherein the nonwoven web for a receiving component of a fastener comprises a laminate in which the nonwoven web comprising composite fibers having crimps is laminated as an outermost layer of the laminate and at least one layer is laminated on a backside of the nonwoven web. 15. The receiving component of a fastener of claim 1, wherein a second nonwoven web comprising a propylene polymer fiber is laminated on the nonwoven web comprising composite fibers having crimps. 16. The receiving component of a fastener of claim 1, wherein the zigzag unit pattern comprises straight first diagonal lines and straight second diagonal lines. 17. The receiving component of a fastener of claim 1, wherein the zigzag unit pattern comprises extension lines that extend from connected portions of the first and second diagonal lines in a direction parallel to the machine direction. 18. The receiving component of a fastener of claim 1, wherein the zigzag unit pattern comprises extension lines that extend from connected portions of the first and second diagonal lines in a direction parallel to the first diagonal lines or the second diagonal lines. 19. The receiving component of a fastener of claim 1, wherein the zigzag unit pattern comprises extension lines that extend from connected portions of the first and second diagonal lines at an angle in a range from about 60 degrees to about 120 degrees with respect to the machine direction. 20. The receiving component of a fastener of claim 1, wherein a difference in height between the non-embossed portion and the embossed portion is in a range of about 0.1 to about 2 mm. 21. The receiving component of a fastener of claim 1, wherein the area percentage of the embossed portion to the sum of the embossed portion and the non-embossed portion is from 20.7% to about 30%. 22. The receiving component of a fastener of claim 1, wherein the area percentage of the embossed portion to the sum of the embossed portion and the non-embossed portion is from 23% to about 30%.
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