Provided is a carpet comprising a textile top member, which includes carpet yarns and a nonwoven primary backing that is coupled with the carpet yarns so that the primary backing structurally supports the carpet yarns. The nonwoven primary backing has a layered configuration of fibers where the average fiber diameters of the fibers in one layer differs from the average fiber diameter in the layer or layers adjacent thereto. The layers are configured to mechanically reinforce and stabilize the carpet yarns. A secondary backing is coupled with the textile top member via a thermoplastic material. The carpet can be a carpet tile or a carpet rug.

A nonwoven fabric comprises at least one fiber having a first component prepared from at least 75 wt. % of bimodalethylene/alpha-olefin interpolymer composition, wherein the ethylene/alpha-olefin interpolymer composition is characterized by: a density in the range of 0.930 to 0.965 g/cm.sup.3, a melt index (I2) in the range of from 10 to 60 g/10 minutes, wherein the I2 is measured according to ASTM D1238, 190 C, 2.16 kg, a molecular weight distribution, expressed as the ratio of the weight average molecular weight to number average molecular weight (M.sub.w(GPC)/M.sub.n(GPC)) as determined by GPC of from 1.5 to 2.6, a tan delta at 1 radian/second of at least 45, a low temperature peak and a high temperature peak on an elution profile via improved comonomer composition distribution (ICCD) procedure, and a full width at half maximum of the high temperature peak is less than 6.0? C.

A nonwoven fabric comprises at least one fiber having a first component prepared from at least 75 wt. % of bimodalethylene/alpha-olefin interpolymer composition, wherein the ethylene/alpha-olefin interpolymer composition is characterized by: a density in the range of 0.930 to 0.965 g/cm.sup.3, a melt index (I2) in the range of from 10 to 60 g/10 minutes, wherein the I2 is measured according to ASTM D1238, 190 C, 2.16 kg, a molecular weight distribution, expressed as the ratio of the weight average molecular weight to number average molecular weight (M.sub.w(GPC)/M.sub.n(GPC)) as determined by GPC of from 1.5 to 2.6, a tan delta at 1 radian/second of at least 45, a low temperature peak and a high temperature peak on an elution profile via improved comonomer composition distribution (ICCD) procedure, and a full width at half maximum of the high temperature peak is less than 6.0? C.

A nonwoven fabric having a plurality of fibers bonded with a bond pattern on a surface thereof to form a coherent web, the nonwoven fabric having a vertical axis extending in a machine direction and a horizontal axis extending in a cross direction, the bond pattern having a plurality of spaced apart pairs of arrays extending in the machine, cross, and diagonal directions of the nonwoven fabric, wherein each array includes a plurality of spaced apart bond points having an oblong shape, and wherein the nonwoven fabric has a percent bonded surface area less than about 12% and an average bond point packing value from about 6.5 to 8.0 mm.sup.?1. Also provided are a thermal calender, a system for preparing a nonwoven fabric, and associated method.

A nonwoven fabric having a plurality of fibers bonded with a bond pattern on a surface thereof to form a coherent web, the nonwoven fabric having a vertical axis extending in a machine direction and a horizontal axis extending in a cross direction, the bond pattern having a plurality of spaced apart pairs of arrays extending in the machine, cross, and diagonal directions of the nonwoven fabric, wherein each array includes a plurality of spaced apart bond points having an oblong shape, and wherein the nonwoven fabric has a percent bonded surface area less than about 12% and an average bond point packing value from about 6.5 to 8.0 mm.sup.?1. Also provided are a thermal calender, a system for preparing a nonwoven fabric, and associated method.

The present invention relates to a non-woven fabric with improved mechanical strength, and more particularly, to a non-woven fabric exhibiting excellent spinnability, excellent softness, and excellent tensile strength while enabling a weight reduction.

The present invention relates to a non-woven fabric with improved mechanical strength, and more particularly, to a non-woven fabric exhibiting excellent spinnability, excellent softness, and excellent tensile strength while enabling a weight reduction.

A flash spinning method for preparing non-woven fabrics based on microwave thermal fusion, a microwave thermal fusion device, and a non-woven fabric preparation device are provided. The flash spinning method includes: step S1, collecting filament bundles to form a non-woven fabric precursor, adding a microwave heating liquid to the non-woven fabric precursor; the microwave heating liquid being configured to absorb microwave energy and convert the microwave energy into thermal energy; and step S2, performing microwave heating on the non-woven fabric precursor containing the microwave heating liquid obtained in the step S1 to obtain a heated non-woven fabric, and performing a hot press forming treatment on the heated non-woven fabric to obtain a finished non-woven fabric. There is no temperature gradient in layers of the non-woven fabric precursor, thereby significantly improving the peeling strength of the finished non-woven fabric.

A flash spinning method for preparing non-woven fabrics based on microwave thermal fusion, a microwave thermal fusion device, and a non-woven fabric preparation device are provided. The flash spinning method includes: step S1, collecting filament bundles to form a non-woven fabric precursor, adding a microwave heating liquid to the non-woven fabric precursor; the microwave heating liquid being configured to absorb microwave energy and convert the microwave energy into thermal energy; and step S2, performing microwave heating on the non-woven fabric precursor containing the microwave heating liquid obtained in the step S1 to obtain a heated non-woven fabric, and performing a hot press forming treatment on the heated non-woven fabric to obtain a finished non-woven fabric. There is no temperature gradient in layers of the non-woven fabric precursor, thereby significantly improving the peeling strength of the finished non-woven fabric.

Electret melt-blown webs made from a polypropylene composition (PC) comprising a propylene homopolymer (HPP) having: a. a melt flow rate MFR.sub.2 in the range from 400 to 5000 g/10 min, b. a melting temperature Tm, in the range from 140 to 160? C., and c. a content of 2, 1 erythro regiodefects in the range from 0.01 to 1.5 mol %.