US 12,232,565 B2
Method of manufacturing a footwear
Jakob Moller Hansen, Bredebro (DK); Jose Augusto Marques, Bredebro (DK); Severino Almeida, Bredebro (DK); Agnes Hildegard Kraft, Bredebro (DK); Andre Gonzaga Oliveira, Bredebro (DK); and Thomas Gogsig, Bredebro (DK)
Assigned to ECCO Sko A/S, Bredebro (DK)
Appl. No. 17/433,979
Filed by ECCO Sko A/S, Bredebro (DK)
PCT Filed Feb. 26, 2020, PCT No. PCT/DK2020/050052
§ 371(c)(1), (2) Date Aug. 25, 2021,
PCT Pub. No. WO2020/173532, PCT Pub. Date Sep. 3, 2020.
Claims priority of application No. 2019 70122 (DK), filed on Feb. 26, 2019.
Prior Publication US 2022/0132991 A1, May 5, 2022
Int. Cl. A43B 23/02 (2006.01); B32B 7/12 (2006.01); B32B 9/02 (2006.01); B32B 37/12 (2006.01); B32B 41/00 (2006.01)
CPC A43B 23/0255 (2013.01) [A43B 23/021 (2013.01); B32B 7/12 (2013.01); B32B 9/025 (2013.01); B32B 37/12 (2013.01); B32B 41/00 (2013.01); B32B 2037/1253 (2013.01); B32B 2309/72 (2013.01); B32B 2310/0825 (2013.01); B32B 2310/0831 (2013.01); B32B 2317/08 (2013.01); B32B 2437/02 (2013.01)] 15 Claims
OG exemplary drawing
 
1. A method of manufacturing a footwear, the method comprising steps of:
providing a leather base layer;
providing a leather attachment layer;
fixing the leather base layer and the leather attachment layer against each other with an intermediate application of adhesive between them;
activating the applied adhesive by subjecting the adhesive to heat over a period of time, and/or to a temperature, by which at least one of the leather base layer and the leather attachment layer shrinks to within a predetermined dimension range;
forcing the leather base layer and the leather attachment layer against each other under a pressure P with the adhesive between them;
curing or hardening the adhesive and thereby bonding the leather base layer and the leather attachment layer to each other; and
integrating the leather base layer and the leather attachment layer, after the bonding, as part of the footwear.