Description
The principle of disposable hand warmers is mainly to release heat through the oxidation reaction between iron powder and oxygen in the air. The main components of hand warmers include iron powder, activated carbon, vermiculite, inorganic salts and water. When the outer packaging of the hand warmer is opened and exposed to the air, the iron powder will react with the oxygen in the air to release heat. Activated carbon has strong adsorption and can absorb oxygen in the air, accelerate the reaction, and continuously generate heat. Vermiculite plays a role in heat preservation, slowing down the loss of heat, so that the hand warmer can maintain a warm state for a long time.
The heating process of the air-activated hand warmer involves multiple chemical reactions and physical processes. Specifically, iron powder reacts with oxygen in the air to generate iron oxide, which is an exothermic process. Activated carbon acts as an adsorbent to promote the supply of oxygen and accelerate the reaction. Vermiculite acts as an insulating material to slow down the loss of heat and keep the temperature stable. Inorganic salts and water form an electrolyte, which promotes the electrochemical corrosion of iron powder and further enhances the heat release effect.
Disposable hand warmers are very convenient to use. Just tear open the outer packaging, and the substance will quickly react with the oxygen in the air to release heat. This heating method does not require fire, electricity or other energy sources, and is very suitable for use in cold environments. It is especially suitable for heating during outdoor sports and when the power is out.
As a professional disposable hand warmer factory, we can produce hand warmers with your brand according to your needs. We can customize your specified non-woven fabric, heating time, size, weight, shape, etc. If you have a customized hand warmer demand, please do not hesitate to contact us.
