US 12,104,295 B2
Security fabric having improved security and identification properties
Hong Keon Kim, Daejeon (KR); Hyun Jun Kim, Sejong-si (KR); Il Hoon Choi, Daejeon (KR); and Hyun Jin Oh, Sejong (KR)
Assigned to KOREA MINTING, SECURITY PRINTING & ID CARD OPERATING CORPORATION, Daejeon (KR)
Appl. No. 17/925,785
Filed by KOREA MINTING, SECURITY PRINTING & ID CARD OPERATING CORPORATION, Daejeon (KR)
PCT Filed Jul. 1, 2021, PCT No. PCT/KR2021/008367
§ 371(c)(1), (2) Date Nov. 16, 2022,
PCT Pub. No. WO2022/050546, PCT Pub. Date Mar. 10, 2022.
Claims priority of application No. 10-2020-0112204 (KR), filed on Sep. 3, 2020.
Prior Publication US 2023/0220592 A1, Jul. 13, 2023
Int. Cl. D03D 15/547 (2021.01); D03D 1/00 (2006.01); D03D 13/00 (2006.01)
CPC D03D 15/547 (2021.01) [D03D 1/00 (2013.01); D03D 13/004 (2013.01); D10B 2401/20 (2013.01)] 11 Claims
OG exemplary drawing
 
1. A security fabric having improved security and identification properties, the security fabric comprising:
two or more boundary threads spaced apart from each other and defining a unit of area in-between; and
a predetermined number of first security threads included within the unit of area, the first security threads containing a first fluorescent material having an intrinsic light emission characteristic under excitation light and forming a predetermined pattern within the unit of area,
wherein the security threads are included in warp threads, weft threads, or both warp and weft threads; wherein the two or more boundary threads include at least three horizontal boundary threads parallel to and spaced apart from each other, and at least three vertical boundary threads parallel to and spaced apart from each other, the at least three horizontal boundary threads and the at least three vertical boundary threads defining at least 4 units of area.