US 11,952,690 B2
Breathable and waterproof non-woven fabric, manufacturing method of breathable and waterproof non-woven fabric, and breathable and waterproof cloth
Ying-Chi Lin, New Taipei (TW); Wei-Hung Chen, New Taipei (TW); Li-Chen Chu, New Taipei (TW); and Rih-Sheng Chiang, New Taipei (TW)
Assigned to TAIWAN TEXTILE RESEARCH INSTITUTE, New Taipei (TW)
Filed by TAIWAN TEXTILE RESEARCH INSTITUTE, New Taipei (TW)
Filed on Dec. 1, 2021, as Appl. No. 17/539,298.
Claims priority of application No. 109143509 (TW), filed on Dec. 9, 2020; application No. 109143510 (TW), filed on Dec. 9, 2020; and application No. 109143511 (TW), filed on Dec. 9, 2020.
Prior Publication US 2022/0178060 A1, Jun. 9, 2022
Int. Cl. D04H 3/033 (2012.01); B32B 5/02 (2006.01); B32B 5/26 (2006.01); B32B 7/14 (2006.01); D06M 11/79 (2006.01)
CPC D04H 3/033 (2013.01) [B32B 5/022 (2013.01); B32B 5/265 (2021.05); B32B 7/14 (2013.01); D06M 11/79 (2013.01); B32B 2255/02 (2013.01); B32B 2255/20 (2013.01); B32B 2307/724 (2013.01); B32B 2307/73 (2013.01); D06M 2200/12 (2013.01)] 5 Claims
OG exemplary drawing
 
1. A breathable and waterproof non-woven fabric, manufactured by a manufacturing method, the manufacturing method comprising:
performing a kneading process on 87 to 91 parts by weight of a polyester, 5 to 7 parts by weight of a water repellent, and 3 to 6 parts by weight of a flow promoter, such that a mixture is formed, wherein the polyester has a melt index between 350 g/10 min and 1310 g/10 min at a temperature of 270° C., and the mixture has a melt index between 530 g/10 min and 1540 g/10 min at a temperature of 270° C.; and
performing a melt-blowing process on the mixture, such that the flow promoter is volatilized and a melt-blown fiber is formed, wherein the melt-blown fiber has a fiber body and the water repellent, the water repellent is disposed on a surface of the fiber body, and the water repellent has a particle size (D90) between 350 nm and 450 nm.