Xiamen Artborne Industrial Co.. Ltd. Is a gel pack manufacturer enterprise integrating custom hot cold pack production and sales.

  

XIAMEN ARTBORNE INDUSTRIAL CO., LTD.

(+86)-020-88888888

INFO CENTER

Home  > INFO CENTER  > 

Introduction of hand warmers

Introduction of hand warmers

2021-10-21

Hand warmers, as the name suggests, can warm people's hands or other parts. Hand warmers reusable use the liquid in the warmer bags to transfer heat. Generally, it is widely used in winter. The liquid in the hand warmer is a supersaturated solution of sodium acetate. Because the concentration of the supersaturated solution is too high, it is not stable. When we twist the metal sheet inside, the slight vibration generated is enough to crystallize the solute and turn it into a more stable solid. However, this process is exothermic, so the hand warmer starts to warm up. One advantage of hand warmers is that they can be recycled. As long as the warming bag is placed in boiling water and heated for about 10 minutes, the condensed solute will dissolve again; this is due to the increase in solubility of the solute at high temperatures. In the process of dissolution, the solute undergoes an endothermic reaction and becomes a supersaturated solution again. The hand warmer bag can get a high temperature of 50 degrees or more by just folding the metal sheet in the bag. The heat rises quickly, and the repeatability is strong, and it is not restricted by time or place. Non-toxic formula, no radioactivity, no skin irritation, safe and reliable to use, small in size and easy to carry. Green environmental protection products, if leaked, are non-toxic, non-corrosive and harmless to the human body and the environment, and should be discarded after flushing with tap water.


How to use hand warmers

If it is not an electrified hand warmer, when you use it for the first time, bend the iron piece in the warmer bag.

The liquid in the hand warmer turned into a solid and began to emit heat, lasting about 35-40 minutes.

When you want to use it later, put the best hand warmer in boiling water and boil it completely into a liquid.


Note: Do not scald with boiling water, otherwise it will not completely turn into liquid. Although it will also release heat, it will soon become solid again!


After the warming bag is no longer hot, squeeze the iron sheet again to release heat; plus the previous cooling time, it can release heat for about an hour!


Special reminder: Do not put the magic gel hand warmer in the electric kettle to boil.

If it has an iron plate in it, it should have a plug. Just plug it in, or just cook it in hot water.

Commodity use

1. Warm up on the way to and from school or on the way to and from work.

2. Outdoor activities such as skiing, mountain climbing, and going out.

3. Warm up when the room temperature is low.


working principle

To understand the principle of warming a handbag, we must first know what a supersaturated solution is. At a certain temperature, the solubility of the solute in the solvent is unchanged. For example, the solubility of table salt (Nacl) in water at room temperature is 36g/100mL of water. When the concentration in the solution is equal to its solubility, the solution is called a saturated solution; when the concentration of the solution is higher than its solubility, the solution is called a supersaturated solution. The liquid in the pocket hand warmer is a supersaturated solution of sodium acetate.


Because the concentration of the supersaturated solution is too high, it is not stable. When we twist the metal sheet inside, the slight vibration generated is enough to crystallize the solute and turn it into a more stable solid. However, this process is exothermic, so the gel hand warmer starts to warm up.


One advantage of liquid hand warmers is that they can be recycled. As long as the warming bag is placed in boiling water and heated for about 10 minutes, the condensed solute will dissolve again; this is due to the increase in solubility of the solute at high temperatures. In the process of dissolution, the solute undergoes an endothermic reaction and becomes a supersaturated solution again.


Established in 1995, Xiamen Artborne Industrial Co., Ltd. is a manufacturer and exporter of magic heat pads, cool pads, polyresin handicrafts, solar products. We are doing our best to assure you of strict quality control, competitive prices and in-time delivery.


We export our products to U.S., Canada, Europe, Mid East, South Africa, etc. For times, we gained the award of Excellent Supplier from our customers. From the year 2001, Xiamen Artborne Industrial Co., Ltd. developed high-tech products - magic heat pad which is used for physiotherapy. It is also a warming product in winter. The magic heat pad is safe and convenient to heat, no hot water, no electrics.


The magic heat pads are recycled and environmentally friendly products. OEM orders are welcome.If you are interested in any of our products, please feel free to contact us for more information. We are looking forward to forming business relations with customers from all over the world.


Chat Online
Chat Online
Chat Online inputting...
Sign in with: