US 12,329,241 B2
Waterproof and moisture-permeable shoe upper and preparation method therefor
Jianliang Shi, Fuqing (CN); and Minghui Lin, Fuqing (CN)
Filed by FUJIAN RUIHONG TEXTILE TECHNOLOGY CO., LTD., Fuqing (CN)
Filed on Apr. 13, 2022, as Appl. No. 17/720,265.
Claims priority of application No. 202110397308.4 (CN), filed on Apr. 14, 2021.
Prior Publication US 2022/0330652 A1, Oct. 20, 2022
Int. Cl. A43B 7/12 (2006.01); A43B 23/02 (2006.01); B32B 5/02 (2006.01); B32B 7/12 (2006.01); B32B 27/36 (2006.01); B32B 37/06 (2006.01)
CPC A43B 7/125 (2013.01) [A43B 23/022 (2013.01); B32B 5/02 (2013.01); B32B 5/026 (2013.01); B32B 7/12 (2013.01); B32B 27/36 (2013.01); B32B 37/06 (2013.01)] 9 Claims
OG exemplary drawing
 
1. A waterproof and moisture-permeable shoe upper, comprising
a fabric upper layer,
a waterproof and moisture-permeable membrane material middle layer, and
an inner fabric lower layer; wherein
the fabric upper layer is a warp knitted jacquard fabric and has anti-wicking treatment, and the waterproof and moisture-permeable membrane material middle layer is made of degradable thermoplastic elastomer comprising a polyester thermoplastic elastomer;
a weight of the waterproof and moisture-permeable membrane material middle layer is 30 g/m2-300 g/m2; a weight of the inner fabric lower layer is 30 g/m2-300 g/m2;
the fabric upper layer, the waterproof and moisture-permeable membrane material middle layer, and the inner fabric lower layer are laminated through high temperature and hot pressing to form a layered composite material;
then the layered composite material is cut or subjected to a second hot pressing to form the waterproof and moisture-permeable shoe upper, and an anti-wicking index of the waterproof and moisture-permeable shoe upper is less than or equal to 1 cm/In 2 hours, a moisture permeability of the waterproof and moisture-permeable shoe upper is greater than or equal to 10,000 g/(m2·24 h), a hydrostatic pressure of the waterproof and moisture-permeable shoe upper is greater than or equal to 10,000 mmH2O, and the waterproof and moisture-permeable shoe upper is free from damage or penetration in water for more than 30,000 flexes.