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Security Pigments for Anti-counterfeiting
 

 LehMo-Flo  and  LehMo-Glow  
 

LehMoSense GmbH produces pigments for printing security marks for anti-counterfeiting.

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Using our photoluminescent pigments, you create and let users view the hidden security mark (color) under invisible UV light or view the fading color after switching off the UV or visible light

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LehMo-Flo Security Paper

Photo image under ambient light

Photo image under UV light

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We offer printable UV fluorescent security paper that is coated with our pigments. The paper is tough and waterproof. It is suitable for printing many secure documents such as bank cheques, certificates, title deeds, notary documents, ballot/voting  paper, passports, identification documents, tickets or labels.

Ink Free Printing!

View under natural light

View  under UV light

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Our fluorescent security paper offers a possibiliy to  use special laser technology to print security features that are invisible in ambient light but visible under UV light. This is demonstrated here by a  printed text (LehMoSense GmbH) that becomes visible only when  illuminated by UV light.

Secure QR codes

View under natural light

View under UV light

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Despite the increasing use of QR codes as an anti-counterfeiting measure, they are also very vulnerable to manipulations or copying. For this reason, secure QR codes with anti-copying features, have become indispensable. We can print  QR codes that are readable only under UV light and also show a unique colour that is difficult to copy. This can protect many products that are prone to counterfeiting such as pharmaceuticals, luxury or precious goods.

View a demonstration video of the sucure QR code.

LehMo-Glow-Green Pigments

Sample in

ambient light

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UV ON

UV OFF

(afterglow decay)

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UV A

(lamp)

UV ON

UV OFF

(afterglow decay)

Near

UV B

(LED)

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UV ON

UV OFF

(no afterglow)

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UV C

(lamp)

Three for One!

Our LehMo-Glow 02 phosphor offers three unique security features for maximum product protection.

Emits light of different colors for UV A and UV C illumination

LehMo-Glow-Green

Observe different colors for UV A and UV C illumination

Use our special phosphor

for your product protection

against counterfeits

Emits different color of afterglow after UV light is  switched off

The afterglow light has a unique decay time constant

that third parties can't copy

LehMo-Glow quarantees benefits in inform of:

  • Best price/performance ratio

  • Secured supply chain

  • Best environmental protection (No rare-earths and toxic materials)

Afterglow excited by visible light

Most  materials show afterglow property only when illuminated by UV light and not by visible light. This limits further applications since UV light is unsafe. Furthermore, the afterglow from most materials do not perform well at temperatures above 30 degrees Celsius. Our LehMo-Glow samples overcomes the above mentioned drawbacks since the afterglow is excitable by visible light (including white light) and the afterglow is observable by naked eye even at higher temperatures upto  40 degree Celsius. Please see the images below.

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Video of the afterglow at room temperature 

Contact us, for more information. We can produce custom sample for your applications. Our samples can also be excited by visible light including a flash of a mobile phone. Get in touch, we are actively looking for partners to innovate together.

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