Hair dye does not use chemicals

Engineers at the University of New Mexico and the Los Alamos National Laboratory are working on the use of convergent ion beam technology (FIB) to decorate on a variety of materials, including hair. The study was inspired by the idea of changing the hair color without the need for the chemistry of Professor Bruce Lamartine five years ago.

The project of Professor Lamartine and colleague Zayd Leseman focused on the technique of engraving "diffraction grating" on each strand of hair to reflect light in a specific way. Using FIB, which has been used in electronics manufacturing, has created curls that reflect specific light frequencies based on their distance and thickness. Next, they use Archimedean spiral patterns and hyperbolic patterns to obtain light reflection in a special way that changes the color of the hair. This idea was tested on black, brown and gold hair. The results show that this technique works best on brown hair.

In order to make this technique practical, engineers have developed a device that looks like a straightener, using FIB technology to create long-lasting color changes on the hair. Users can also change the "hairpin" on the device depending on the color they want to dye.

Professor Leseman said that the first way to dye a new technique is directly on the hair and the new color will not change until the hair grows. The second way is to develop a conditioner for hair extensions designed specifically to coat the hair. This way, you easily wash the color if you do not like.

By being able to dye your hair in full color without the hassle of chemical dyes, this technology promises to be popular in the market.