In 1983, we started studying this dye. The production of this dye overseas was suspended, and we received a request from our clients for domestic production. At our company, after 3 months from the start of consideration, we manufactured and delivered it to our clients. Through repeated examinations, we have identified the factors that affect quality and yield, and succeeded stabilized them. In recent years, novel function as a raw material for dyes for color filters has been found. It has been a long-selling product for over 35 years, which has been widely used by clients from textile dyeing to materials for information electronics industry.
