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US 12,188,162 B2Granted
Spunbonded nonwoven and tile carpet using the same
AssigneeKolon Industries, Inc.
InventorsWoo-seok Choi, Min Ho Lee, Hee-jung Cho, Young-shin Park, Jung-soon Jang
Life of this patent
Estimating the term…
Abstract
The present disclosure relates to a spunbond nonwoven fabric for a tile carpet base fabric which can manufacture tile carpets with excellent sound absorption performance and tuft withdraw force, including high-thickness nonwoven fabrics made of hollow fibers to which recycled polyester raw materials are applied, and a tile carpet using the same.
Claims8
A spunbonded nonwoven fabric comprising
- a fiber web of mixed filament yarns of a first filament prepared from a polyester and a recycled polyester each having a melting point of 255° C. or more;
- and a second filament prepared from a copolyester having a lower melting point than that of the first filament by 30° C. or more,
- wherein the first filament is a filament having a hollow fiber cross-section having a hollow ratio of 10 to 20%,
- wherein a raw material of the recycled polyester has an average number of foreign matters with a size of 1.0 to 10.0 μm, of 10 or less, and
- wherein the spunbonded nonwoven fabric has tensile strength of 20 kgf/5 cm or more and tensile elongation of 20% or more as measured according to the KS K 0521 test method, and is used as a base fabric for tile carpets.
2 more elements
Dependencies are inferred from the claim text.