Intaglio printing with security features utilized by countries worldwide to produce currency notes , passports and etc, has been used against counterfeits for more than hundred years. Our knowledge and expertise in intaglio printing have successfully extended its applications in security policies.
1. Designed Latent Image
This is a basic application of intaglio printing utilizing the relief feature to design the image consisting of tiny vertical and horizontal lines that can only be observed at the right angle to effectively prevent from counterfeiting to certain extend.
2. Micro-letter and Guilloches
This is an unique design to do multi-color printing in one intaglio press with no deviation that can even be inspected under a high power magnifier. So far currency notes have been mostly done in two to four colors, but with a special mechanical design, we can do up to 8 colors.
The height of the micro-letter indicates the technical competence in plate making and printing. Screen printing may imitate relief printing, but not micro-printing that is even harder to replicate if the height of micro-letters is as 0.2mm-0.3mm.
3. Designed Transitory Image
This is a 3-dimensional design integrating unique process, special ink and specific pressure of intaglio printing under accurate control of the height, angles and color of ink stacking to produce the effect of 2-4 different images in the same spot can be observed from various angles.
4. Structural Latent Image
A simple lines structured design utilizes the intaglio feature of relief patterns with at least 60μm height of ink stacking
5. Structural Optical variability
This is derived from structural latent image integrated with 3-dimensional design and special process to come out the optical effect of color shifting of the image which is visible under oblique angles when illuminated.
6. Structural Transitory images
This technology is under the process of patent application, and is T-security's newest technology of the next generation with the word height of higher than 70μm .This advanced technology is ahead of the world's national currency printer. When viewed under different angle, different image can be observed.
There are limitations or inadequacies in all processes of security control. In addition, anti-counterfeit and security control covers various aspects which are broad and complicate, so functional specific process is indispensable for anti-counterfeit solutions.
1. Security Thread
Security thread is embedded in the paper and is an important security feature of many bank notes to protect against counterfeiting. Its most prominent feature is that it can be integrated with other variety of security features, such as miniature characters, UV, magnetic, optical functions and so on, to greatly strengthen its security features.
2. Watermark
Watermark is an impressed image on paper with various thickness. When the watermark is held against light, it appears various shade lightness/darkness. However, watermark's security feature is weak due to the easy replicated by printing.
3. Intelligent Stickers
The intelligent sticker is used for anti-unseal and anti-false. Its security feature is not strong due to the low technical threshold but its functionality is good. It can be an effective product if integrated with other mechanism with stronger security feature.
4. T-Moire effect
This is a special effect in which a small covert text can be viewable with a special optical film.
5. Low frequency effect
This is a typical functional specific process to make specific text invisible on the substrate and it can be visualized with a tool of low-frequency electromagnetic wave.
6. High frequency effect
This is a complicate technical process which is very difficult to counterfeit. Various texts can be hidden and reconstructed with high-frequency electromagnetic wave.
7. Phosphorescence
The light energy is saved on the process and released when the substrate is not illuminated. With the different material the released light energy will last differently from 5 seconds to 25 hours. This is an effective security feature thatgoes well with the intaglio printing.
8. Thermal Sensitivity
The color of intaglio printing changes as the temperature changes. It can be efficiently used as thermal control.