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US 2024/0401254 A1Published application
Long-fiber nonwoven fabric and bag-shaped product using the same
AssigneeTOYOBO MC Corporation
InventorsMasayoshi Iwane, Hirokazu Nishimura, Hideo Yoshida, Shinichi Minemura
Life of this patent
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Abstract
A long-fiber nonwoven fabric of the present invention contains a resin having a polyethylene terephthalate component of 99% or more. The long-fiber nonwoven fabric has a dry heat area shrinkage rate of 30% or more at 100° C. for 3 minutes, and constituent fibers of the long-fiber nonwoven fabric have a birefringence index (Δn) of 10×10−3 to 60×10−3 and a specific gravity of 1.335 to 1.340 g/cm3.
Claims10
A long-fiber nonwoven fabric comprising a resin having a polyethylene terephthalate component of 99% or more,
- wherein the long-fiber nonwoven fabric has a dry heat area shrinkage rate of 30% or more at 100° C. for 3 minutes, and
- constituent fibers of the long-fiber nonwoven fabric have a birefringence index (Δn) of 10×10−3 to 60×10−3 and a specific gravity of 1.335 to 1.340 g/cm3.
Dependencies are inferred from the claim text.