Property imparted by treatment of paper with chemicals that prevent the paper from promoting the spread of a flame, should the paper catch fire. Papers used for drapes and curtains, paper-based garments, hats, tablecloths, streamers, or other party favors all must be flame-resistant. Often, government ordinances require papers used for such purposes to be flame-resistant. Flame resistant papers are not fireproof, however; flame resistance merely allows a flame to be contained, not avoided completely.
Flame resistance is quantitatively gauged by the length of time an ignited paper continues glowing, and the size of the remaining portion of paper once the flame has ceased.