Blind Embossing
A colorless relief image or raised impression made without use of inks or foils.
Copy-Evident Background
A pattern designed into the printed background which becomes visible when photocopied or scanned.
Duplex Patterns
A design made up of an interlocking pattern or irregular shapes, printed on opposite sides of the substrate. The images when viewed with transmitted light, creates one complete and registered image.
Embossing
The process of creating a raised image into the substrates surface, using either a set of male/female dies or engraved plates/cylinders and magnetic flexible dies under high pressure. Tactile elements can also be created using specialty inks and/or thick layers of inks to create a raised image.
Guilloche Pattern
An intricate pattern of overlapping, continuous colored lines.
Latent Image
An image or pattern created with raised lines placed at a right angle (90 degrees) from the background, so that when viewed at an oblique angle the image is visible through light and shadow effects.
Metameric Colors
Two colors appear similar under normal lighting conditions, but because of differences in spectral/chemical composition, will appear dramatically different when viewed with a filter or differing light sources.
Optically Variable
Materials such as foils and films that change their appearance when viewed at different view angles or lighting conditions.
Rainbow Printing
A printing technique in which two colors are blended together to create a continuous and gradual transition from the first color to the second or more.
Barcode (1-D and 2-D)
A code consisting of a group of variously patterned bars and spaces that are designed to be scanned and read into computer memory as inventory, identification or authentication for the object it labels. Can be printed in UV/IR inks for track and trace verification.
