Understanding the Types of Security Inks to Prevent Document Forgery

 

In the printing of high-value and sensitive documents such as certificates, tickets, vouchers, and financial papers, security is a paramount aspect that must be maintained rigorously. One of the critical elements in ensuring the authenticity of such documents is the use of security inks.

 

Security inks are specially designed to provide anti-counterfeiting features that are difficult to replicate using conventional printing techniques. Jasuindo, a company specializing in high-security printing solutions, utilizes a variety of security inks to safeguard important documents from the risks of fraud and forgery. The following are some commonly used types of security inks:

 

 

Bleeding Ink

This ink changes color upon contact with liquids such as water. Initially printed in black, it “bleeds” into red when touched with a wet hand or tissue. This feature serves as an effective authentication indicator, as its color transformation cannot be mimicked by ordinary inks.

 

 

Coin Reactive Ink

Initially invisible or white, text or images printed with this ink become visible when rubbed with a coin. This property makes it a quick and practical verification tool without requiring additional equipment—ideal for promotional vouchers or membership cards.

 

 

Erasable Ink

Commonly used as background elements on documents such as cheque or share certificates. When a specific area is erased, the content vanishes completely. However, this ink is heat-sensitive and not suitable for reprinting using laser printers.

 

 

Pen Reactive Ink

This ink only appears when touched by a specific type of pen, making it highly suitable for confidential or sensitive document verification. Ideal for use on decrees, critical agreements, or legal documents.

 

 

Visible Infrared Ink

Appears normal when printed but exhibits a different reaction when exposed to infrared light. Certain layers may become visible or disappear. Frequently used in barcode and QR code systems with enhanced security layers. A primary solution used by Jasuindo to support secure document tracking systems.

 

 

Optically Variable Ink

Produces a color-shifting effect depending on the viewing angle. Typically used for logos, seals, or premium authentication symbols. Its resistance to scanning or photocopying makes it ideal for high-level security applications.

 

 

Thermochromic Ink

Changes color when exposed to heat, such as from a fingertip. The color reverts once the temperature normalizes. This ink cannot be scanned or copied, making it useful for both promotional materials and secure identity documents.

 

 

UV Invisible Fluorescent Ink

Invisible under normal lighting, this ink glows when exposed to ultraviolet (UV) light. Suitable for high-standard documents such as diplomas and passports.

 

 

Why Choose Jasuindo?

With extensive experience in high-security printing, Jasuindo integrates advanced security ink technologies with state-of-the-art printing systems and stringent quality control. We do more than just print documents—we help you safeguard your business’s credibility and integrity through anti-counterfeiting printing solutions.

 

If you are seeking reliable and secure printing solutions, Jasuindo offers a wide selection of security inks and cutting-edge printing technologies to protect your valuable assets.

 

Contact the Jasuindo team today for secure, professional, and internationally standardized document printing solutions.