Replace phosphorus trisulfide with sulfur in the head of safety matches. The general heat of friction is not enough to cause a reaction in the medicine head. Only when scratching on the phosphorus layer on the side of the matchbox, the heat of friction first causes the sulfur to react with potassium chlorate, releasing more heat energy, and promoting the chemical substances in the medicine head to react and ignite.

The ignition method of matches is friction, so the fuel on the head of the match is very important. The workers first pour the gelatin as the adhesive into a continuous stirring machine, and then pour substances such as potassium chlorate, manganese dioxide, sulfur, glass powder, and pigment dyes. Continue stirring for 40 minutes, allowing the gelatin and these flammable substances to fully blend together. After the raw materials for the match head are made, the match stem can be made. The match stem uses carbonated wood to ensure that it does not smolder. These cut wooden sticks will be put into the machine for automatic production. Due to the use of fully automated mechanical equipment, approximately 2 million matches can be made in one hour, while hundreds of millions of matches can be made in one day. Isn't this number very astonishing!