abstract |
A flame-retardant processing method, containing: na radiation processing step of irradiating a cellulosic fiber material with radiation; na phosphorus processing step of adding a radically polymerizable phosphorus-containing compound to the cellulosic fiber material; and nan amine processing step of adding an amine compound to the cellulosic fiber material, and a flame-retarded cellulosic fiber material prepared by the method above. |