Security thread: Difference between revisions
imported>Hallo3800 Added country of origin for clarity |
imported>Accuracy33 I only deleted a comma, without changing the meaning, to call attention to the change I made two changes ago which I mistakenly called minor, because I thought no one would disagree. Then I found the definition of minor, and I was wrong about minor. |
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[[File:Benang pengaman, tinta OVI, dan tanda air pada uang Rp50,000 dan Rp100,000 emisi 2022.jpg|thumb|right|The security threads of the latest Indonesian [[Indonesian 100,000 rupiah note|Rp100,000]] and Rp50,000 notes issued in 2022]] | [[File:Benang pengaman, tinta OVI, dan tanda air pada uang Rp50,000 dan Rp100,000 emisi 2022.jpg|thumb|right|The security threads of the latest Indonesian [[Indonesian 100,000 rupiah note|Rp100,000]] and Rp50,000 notes issued in 2022]] | ||
A '''security thread''' is a security feature of many [[banknotes]] to protect against [[counterfeit]]ing. | A '''security thread''' is a security feature of many [[banknotes]] to protect against [[counterfeit]]ing. In the USA, such threads, first in silk and later in nylon have been used at least since the 1950's. A clear, inscribed polyester thread was introduced in United States banknotes in 1990, it consists of a thin ribbon that is woven through the note's [[paper]].<ref>{{cite web| title=Secret service| url=http://www.secretservice.gov/money_design_features1990.shtml| url-status=dead| archiveurl=https://web.archive.org/web/20090118093705/http://www.secretservice.gov/money_design_features1990.shtml| archivedate=2009-01-18}}</ref><ref>{{Cite web |title=Unsur-unsur Ini yang Bedakan Rupiah Asli dan Palsu – PID Polda Kepri |url=https://pid.kepri.polri.go.id/unsur-unsur-ini-yang-bedakan-rupiah-asli-dan-palsu/ |access-date=2024-09-05 |language=id}}</ref> | ||
Usually | Usually the ribbon runs vertically, and is "woven" into the paper, so that it at some places emerges on the front side and at the remaining places at the rear side of the paper. It is made of [[metal]] [[Foil (chemistry)|foil]], but sometimes of [[plastic]], and oftentimes it has some text or numbers (e.g., the denomination) [[engraving|engraved]]. | ||
Threads are embedded within the paper fiber and can be completely invisible or have a star burst effect, where the thread appears to weave in and out of the paper when viewed from one side, while the thread will always appear as a solid line when held up to the light. Features can be built into the thread material e.g., [[microprinting]] on a transparent plastic thread or adding materials so they [[fluorescence|fluoresce]] under [[ultraviolet|ultraviolet light]]. | Threads are embedded within the paper fiber and can be completely invisible or have a star burst effect, where the thread appears to weave in and out of the paper when viewed from one side, while the thread will always appear as a solid line when held up to the light. Features can be built into the thread material e.g., [[microprinting]] on a transparent plastic thread or adding materials so they [[fluorescence|fluoresce]] under [[ultraviolet|ultraviolet light]]. | ||
Latest revision as of 19:17, 4 December 2025
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A security thread is a security feature of many banknotes to protect against counterfeiting. In the USA, such threads, first in silk and later in nylon have been used at least since the 1950's. A clear, inscribed polyester thread was introduced in United States banknotes in 1990, it consists of a thin ribbon that is woven through the note's paper.[1][2]
Usually the ribbon runs vertically, and is "woven" into the paper, so that it at some places emerges on the front side and at the remaining places at the rear side of the paper. It is made of metal foil, but sometimes of plastic, and oftentimes it has some text or numbers (e.g., the denomination) engraved.
Threads are embedded within the paper fiber and can be completely invisible or have a star burst effect, where the thread appears to weave in and out of the paper when viewed from one side, while the thread will always appear as a solid line when held up to the light. Features can be built into the thread material e.g., microprinting on a transparent plastic thread or adding materials so they fluoresce under ultraviolet light. The thread is a difficult feature to counterfeit, Template:Citation needed span
Security threads can also be used as an anti-counterfeiting device in passports. Those are generally made of plastic and contain microprinting.
References
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