Cotton material: It burns immediately after contacting the fire, and continues to burn after leaving the flame, with the smell of burning paper, a small amount of off-white.
Wool material: It burns slowly after being ignited, and sometimes extinguishes by itself after leaving the fire. It has a foul smell and is grayish powdery.
Nylon/cotton material: It melts and shrinks in contact with the flame, burns very slowly, and extinguishes by itself after leaving the fire. It has a special smell, loose and brittle black ashes.
Polyester material: it melts and shrinks close to the flame, and burns slowly, leaving the flame to continue to burn, it has a fragrant smell, very hard black round beads.
Acrylic material: It melts and shrinks close to the flame, emits black smoke when burned, a peculiar smell, and urges and hard and unshaped lumps.