US 12,280,929 B2
Packaging material for non-destructive detection of food quality, preparation method of packaging material, and detection method using packaging material
Lijuan Xie, Hangzhou (CN); Yingli Wang, Hangzhou (CN); Yibin Ying, Hangzhou (CN); Xiangjiang Liu, Hangzhou (CN); and Lin Li, Hangzhou (CN)
Assigned to ZHEJIANG UNIVERSITY, Hangzhou (CN)
Appl. No. 18/034,089
Filed by ZHEJIANG UNIVERSITY, Hangzhou (CN)
PCT Filed Sep. 8, 2021, PCT No. PCT/CN2021/117104
§ 371(c)(1), (2) Date Apr. 27, 2023,
PCT Pub. No. WO2022/267229, PCT Pub. Date Dec. 29, 2022.
Claims priority of application No. 202110704597.8 (CN), filed on Jun. 24, 2021.
Prior Publication US 2023/0391521 A1, Dec. 7, 2023
Int. Cl. B65D 65/40 (2006.01); C23C 14/08 (2006.01); C23C 14/34 (2006.01); C23C 14/58 (2006.01); G01N 21/3586 (2014.01); G01N 21/65 (2006.01)
CPC B65D 65/40 (2013.01) [C23C 14/086 (2013.01); C23C 14/34 (2013.01); C23C 14/5873 (2013.01); G01N 21/3586 (2013.01); G01N 21/65 (2013.01)] 10 Claims
OG exemplary drawing
 
1. A packaging material for a non-destructive detection of food quality, comprising a film material covering an outside of food, wherein the film material comprises a flexible base layer, an adhesive layer, a transparent conductive layer, and a nanostructured layer, wherein the flexible base layer the adhesive layer the transparent conductive layer, and the nanostructured layer are sequentially stacked from an outer side to an inner side; the flexible base layer is a polydimethylsiloxane (PDMS) layer; the adhesive layer is a polyimide (PI) layer; the transparent conductive layer is an indium tin oxide (ITO) layer; and the nanostructured layer is a silver nanoparticles layer.