Technological watch

One embodiment of the present invention provides a melamine resin-based flame-retardant coating technology specialized for cellulose. The flame-retardant coating agent according to the present invention is provided as a coating agent that, due to the addition of a phosphoric acid-based flame retardant and hyaluronic acid to a melamine resin, has excellent thermal stability and self-extinguishing performance as compared to the prior art.