NAPPED ARTIFICIAL LEATHER AND METHOD FOR PRODUCING NAPPED ARTIFICIAL LEATHER
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United States of America Patent
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Issued Date -
Jan 23, 2025
app pub date -
Dec 6, 2022
filing date -
Dec 6, 2022
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Abstract
Provided are a napped artificial leather which can restrain spontaneous elongation during the production process, enables the constant load elongation transverse/machine ratio to be set to an appropriate value even without a scrim or a liner, and is excellent in pilling resistance and appearance, and a method of producing the napped artificial leather. The napped artificial leather includes a nonwoven fabric which is an entangled body of microfine fibers, and a high-molecular elastic body attached to the nonwoven fabric, has a napped surface formed by napping the microfine fiber on at least one surface, and satisfies the following conditions (1) and (2):(1) the nonwoven fabric is composed of microfine polyester filaments and (2) the fiber density D1 in the transverse direction is from 150 to 450 fibers/mm2, the fiber density D2 in the machine direction is from 150 to 450 fibers/mm2, and D1/D2 is from 0.7 to 1.1.
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