A wide variety of security inks are available to use in conjunction with good security design to authenticate your document. It is important to understand what you are trying to achieve when selecting the right security inks.
If your primary concern is detecting attempts to fraudulently alter your document, then we will always recommend the use of one or more tamper evident inks.
If your main objective is authenticating a document, then an instant verification ink is advisable.
In reality the majority of documents that we produce will use a combination of both types of security ink, alongside other security features.
We are one of the prominent exporters and suppliers of the best quality Security Inks like fugitive inks fluorescent glow additive, thermochromic ink irreversible etc. These inks are ideal to be used in printing industry to authenticate confidential documents and add unique security features which are not visible through eyes. Offered inks find their application in various governmental documents like stamps, certificates, bank cheques, portfolio etc.
DNS-IRAN security supplier
What makes invisible ink, invisible?
Ink, by definition, does not have to have color. In fact, while dyes and pigments are what give ink its physical color in most applications, in security applications, the same dyes and pigments can be formulated to be naked to the visible eye. Additionally, taggants – particles added to ink that are developed to react in proximity of a unique “reader” or verifier – are typically microscopic in size.
Because invisible ink, by design, does not have color, most applications of invisible security ink involve a taggant that reacts with a specially designed camera, light, or scanner. When implementing security ink, the taggant is developed to react only with proper equipment using a UV, infrared, or near-infrared light at a specific wavelength. While heat- and chemical-activating inks do exist, they are more popular in kids’ science experiments than in enterprise applications.
Just how specific is the scanner used? It depends on the level of security needed. In less secure applications, the ink reacts under a broad range of wavelengths. For example, ink on a concert ticket might fluoresce under any black light. In some high-security cases, the taggant reacts only under a light specifically calibrated for that ink.
In short, the components in an invisible ink are all developed and mixed to create a fluid that is transparent to the naked eye, but reactive (and visible) under certain operating conditions.
So Security ink doesn’t have to be just invisible
Creating security ink
To create a security ink for a custom application, ink manufacturers must consider a variety of elements:
- Substrate – What material will the ink be printed on? How can we ensure the ink adheres properly to the substrate?
- Operating conditions – Will the printed item be used once or many times?
- Visible properties – Does the ink need to be invisible to the naked eye?
- Detection mechanism – Is there specific equipment that will be used to validate authenticity (as in light-sensitive ink on a passport) or will it be validated by the naked eye (as in the watermark on a U.S. $20 bill)?
- Security level – Are there other security protocols being implemented for the application? Just how secure does this item need to be?
- Printing – What production speed needs to be maintained? What printing equipment or technology will be used?
These, and many other questions, lead ink manufacturers to develop an ink formulation that meets all of a customer’s needs.
Of course, the ink manufacturer isn’t the only participant in these discussions. Companies looking for security solutions often have to work with a printer as well as the security company that provides the taggant and the machine people will use to confirm the authenticity of the ink.
DNS company normally provided so many verity of security inks which some of them have been listed as follow:
Tamper Evident Inks
Solvent Sensitive Inks
Solvent sensitive inks are most commonly used in cheque printing, and are designed to detect an attempt to fraudulently alter a document by smudging and fluorescing when subjected to specific solvents commonly used by fraudsters.
Aqua Fugitive Inks
Aqua Fugitive inks are used in conjunction with solvent sensitive inks in cheque printing, and are designed to smudge when anybody attempts to remove ink using water.
Combined Solvent Sensitive Aqua Fugitive
As the name implies, this security ink is a combination of the above two inks, and performs both functions
Adhesion Promotion Varnish
This ink is only visible when viewed using an ultra violet light source. It promotes toner adhesion to the base paper, but also changes colour if a fraudster attempts to remove the toner by rubbing.
Instant Verification Inks
Invisible UV Ink
Designs printed in invisible UV ink are only visible under a UV lamp and are used to authenticate a document. Under UV light the ink can fluoresce in a choice of colours depending on the ink chosen. We recommend that invisible UV inks are used in conjunction with a security background design to provide another level of protection.
Thermochromic inks (or heat reactive inks) react to change colour or disappear when subjected to heat, and are ideal for providing instant verification for documents such as cheques, vouchers or certificates. They are available in a range of colours, and can be formulated to react at different temperatures for use in hotter climates.
Coin Reactive Ink
These inks become visible only when rubbed with a coin to reveal a hidden message, such as ‘VALID’. They can be particularly useful when documents are required to be validated in the field, where access to ultra violet lamps is limited.
Scope of Security Inks Products
We offer a wide range of security inks which can solve many document fraud and counterfeit issues. Often security features of inks can be combined to increase the security level and/or make printing of secure documents more economical. Here is a list of some of the security inks we can provide:
- Watermarking Ink overview
Watermarking Ink is security ink to mark documents with watermark (optional with UV fluorescent security feature). This feature cannot be copied and is very easy to verify. Suitable to protect all documents against counterfeiting.
- Numbering inks
Black penetrating red or black UV fluorescent. Numbering Ink (Penetrating Red) can be formulated as Magnetic for MICR reading if required.
- Intaglio inks
We offer a full range of intaglio inks for banknotes, postage stamps, passports, fiscal stamps, certificates and other security documents.
- Metameric inks
Metameric features consist of two similarly coloured inks that are almost indistinguishable in normal light conditions. However, when a filter (a coloured piece of plastic) is placed over the print, one ink disappears while the other appears darker. This allows for hidden words or images to become apparent and thus identify the document as genuine.
- Magnetic inks
MICR inks are suitable for most magnetic character recognition applications.
- Iridescent inks
Ink appears transparent when viewed at zero degree, and changes to a color shade when viewed at an angle.
- Custom formulated security inks