Patent ID: 11965274
Assignee: TOYO ALUMINIUM EKCO PRODUCTS CO., LTD.
Field: Chemical engineering (Chemistry)
Classification: CPC D  B  F | IPC B  D  F

Claim 0:
1. A non-woven fabric (1), which is formed of a composite polyester fiber (2) having a core-sheath structure in which a sheath portion (4) is a low melting point polyester and a core portion (5) is a high melting point polyester having a higher melting point than that of the low melting point polyester and the other fibers (3) of the rest, the non-woven fabric (1) comprising:
a non-woven fabric body (11) in which the composite polyester fiber and the other fibers of the rest are integrated, wherein
the non-woven fabric body contains the composite polyester fiber in an amount of 15% by weight or more and 80% by weight or less based on a total amount of 100% by weight of the non-woven fabric body,
when an apparent density of the non-woven fabric body=(a basis weight of the non-woven fabric body)/(a thickness of the non-woven fabric body), the apparent density of the non-woven fabric body is 0.005 g/cm3 or more and 0.040 g/cm3 or less, and
a bending resistance of the non-woven fabric body in a first direction is 50 mN·cm or more and 220 mN·cm or less, and a bending resistance in a second direction, which is orthogonal to the first direction, is 20 mN·cm or more and 140 mN·cm or less.