Transmaterial

Interactive Ink

Founded in 1993, Chromatic Technologies, Inc. is a privately held corporation that creates offset, flexographic, and screen inks which change color with heat and cold (thermochromic) or sunlight and darkness (photochromic). CTI was the first to develop a thermochromic offset ink and holds several U.S. and Canadian patents for this technology. CTI also makes a Glow-in-the-Dark ink.

Thermochromic Inks come in three standard temperatures: 15C (Low temp), 31C (Body temp) and 45C (High temp). The 'Low Temperature' ink is used for applications in the refrigeration temperature range, like beverage labels. 'Body Temperature' ink is designed to show color at normal room temperature and to change when rubbed with the finger or by breathing on it. It is used on documents and security packaging. The 'High Temperature' formulation changes color just below the pain threshold temperature for skin, and is used on safety labels and hot beverage labels.

Photochromic Inks are invisible unless UV light, e.g. sunlight, hits them. Once UV light hits the ink, it blooms into color. This special brand of ink is great for everything from high-security documents and products to interactive advertising and direct mail pieces. With photochromics, no special techniques are needed to hide an image; the image is colorless until it is taken outside into sunlight or placed under UV lighting.

Glow-in-the-Dark (GID) inks are not a new concept. CTI has taken traditional GID inks to the next level by inventing Flexographic and Offset inks. There are thousands of safety applications for these inks, and even more promotional ideas. By using high speed printing methods, this very popular special effect can be added at a very low incremental cost. [via the CTI website; suggested by Andrew McCune.]

posted by Blaine @ 4:02 PM