US Patent Issued to PRINKER KOREA on May 27 for "Ink composition for hair dyeing, film for hair dyeing, film cartridge for hair dyeing, and printer for hair dyeing" (South Korean Inventors)

ALEXANDRIA, Va., June 17 -- United States Patent no. 12,311,042, issued on May 27, was assigned to PRINKER KOREA INC. (Suwon-si, South Korea).

"Ink composition for hair dyeing, film for hair dyeing, film cartridge for hair dyeing, and printer for hair dyeing" was invented by Kyu Suk Lee (Suwon-si, South Korea), Jong In Lee (Suwon-si, South Korea), Tae Sik Yun (Seoul, South Korea), Mi Kyoung Han (Anyang-si, South Korea), Dong Hoon Song (Anyang-si, South Korea) and Yong Min Jeong (Suwon-si, South Korea).

According to the abstract* released by the U.S. Patent & Trademark Office: "According to one aspect of the present disclosure, provided is a film for hair dyeing comprising: a base film; and an ink layer for hair dyeing on the base film, wh...