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AssigneeKolon Industries, Inc.
InventorsYeong Nam Hwang, Won Jun Kim, Jong Ho Park
Estimating the term…
Disclosed is an artificial leather containing a non-woven fabric composed of ultra micro fibers and impregnated with an polymeric elastomer, wherein a residual shrinkage ratio of the artificial leather at 30% stretching is 10% or less in a machine direction and is 20% or less in a cross-machine direction. The artificial leather has optimal residual shrinkage ratios, and specifically a residual shrinkage ratio in a machine direction of 10% or less and a residual shrinkage ratio in a cross-machine direction of 20% or less, when the artificial leather is stretched by 30%. As a result, the artificial leather which has stretched during the process for shape-formation can easily contract and restore, and thus avoid creasing even when applied to the products having many curved parts.
An artificial leather comprising a non-woven fabric composed of ultra micro fibers and impregnated with an polymeric elastomer, wherein a residual shrinkage ratio of the artificial leather at 30% stretching is 10% or less in a machine direction and is 20% or less in a cross-machine direction.
A method for producing an artificial leather, comprising:
An island-in-sea fiber consisting of a first polymer as a sea component and a second polymer as an island component, wherein the first polymer and the second polymer have different dissolution properties with respect to a solvent and the island-in-sea fiber has an elongation of 90 to 150%.
A method for preparing an island-in-sea fiber comprising:
Dependencies are inferred from the claim text.