DYES AND A METHOD OF MANUFACTURING THE SAME AND FIBER DYED THEREBY

摘要

Provided is a dye for fibrous products, which imparts antibacterial and anti-mould effects to fibrous products, causes no discoloration of the fibrous products, and maintains antibacterial and anti-mould effects for a long period of time. The dye has a structure represented by the following formula(1) or (2). In formulae(1) and (2), A represents an azo group-containing chromophore. The dye is obtained by the method comprising the steps of: carrying out diazotization of p-nitroaniline or 2-amino-4-nitrophenol with hydrochloric acid and sodium nitrite; and carrying out azo-coupling between the diazotizated product and 2-pyridinethiol-1-oxide sodium salt.