US 12,402,677 B2
Fabric resistant to liquid penetration
Jie Ding, Edinburgh (AU)
Assigned to THE COMMONWEALTH OF AUSTRALIA, Edinburgh (AU)
Appl. No. 17/928,244
Filed by The Commonwealth of Australia, Edinburgh (AU)
PCT Filed May 3, 2021, PCT No. PCT/AU2021/050402
§ 371(c)(1), (2) Date Nov. 28, 2022,
PCT Pub. No. WO2021/237271, PCT Pub. Date Dec. 2, 2021.
Claims priority of application No. 2020901722 (AU), filed on May 27, 2020.
Prior Publication US 2024/0049822 A1, Feb. 15, 2024
Int. Cl. A41D 31/10 (2019.01); A41D 1/00 (2018.01); A41D 31/14 (2019.01); B32B 5/02 (2006.01); B32B 5/26 (2006.01); B32B 7/02 (2019.01); B32B 9/00 (2006.01); B32B 9/04 (2006.01)
CPC A41D 31/10 (2019.02) [A41D 1/00 (2013.01); A41D 31/14 (2019.02); B32B 5/024 (2013.01); B32B 5/262 (2021.05); B32B 7/02 (2013.01); B32B 9/007 (2013.01); B32B 9/047 (2013.01); B32B 2255/02 (2013.01); B32B 2255/24 (2013.01); B32B 2255/26 (2013.01); B32B 2262/0276 (2013.01); B32B 2262/062 (2013.01); B32B 2307/724 (2013.01); B32B 2307/7265 (2013.01); B32B 2307/73 (2013.01); B32B 2437/00 (2013.01)] 23 Claims
OG exemplary drawing
 
1. A garment for resisting penetration of a target liquid, the garment comprising a dual layer fabric, the dual layer fabric comprising:
an outer layer; and
an inner layer;
wherein both the inner layer and outer layer comprise hydrophobic or superhydrophobic material;
wherein the inner layer is to be positioned closer to the skin of a wearer than the outer layer when the garment is being worn;
wherein each of the inner layer and the outer layer on their own are wettable by the target liquid;
wherein the inner layer has a lower wettability to the target liquid than the outer layer;
wherein the surface tension of the target liquid is less than 50 mNm−1; and
wherein the configuration of the inner and outer layers create a wettability difference that biases the outer layer to absorb the target liquid and the inner layer to resist penetration of the target liquid in a direction moving from the outer layer to the inner layer.