How can a warm baby heat up?

Warm babies tear off the film and get hot when exposed to oxygen.

Warm baby is the principle of heating: the reaction principle of warm paste is to use primary battery to accelerate oxidation reaction and convert chemical energy into heat energy. In order to keep the temperature longer, vermiculite, a mineral material, is used to keep warm.

Because it can't react before use, the material of the bag should be very special, consisting of raw material layer, gelatin layer and non-woven bag. Non-woven bag adopts microporous breathable film, and there are also conventional airtight outer bags. When in use, the outer bag is removed, so that the inner bag (non-woven bag) is exposed to the air, and oxygen in the air enters the interior through the breathable film.

Extended data:

Precautions:

1, watch out for cryogenic burns.

Due to the cold weather in winter, the human body's perception ability becomes dull, and a slight negligence in using warm baby may lead to cryogenic burns. Experts suggest that people should try not to use warm babies when they are tired, have poor physical activity, are drunk or have been anesthetized. In general, when using it for heating, try to stick it on thick clothes, and don't use it with other heating items at the same time. If you feel uncomfortable, take off the warm baby as soon as possible.

If you are accidentally caught by cryogenic burns, the first thing to do is to take off warm baby or warm clothes in time. The second thing is to take some cold therapy measures, such as continuous washing with cold water, and then let a specialist examine the wound in time to determine how to further treat the low-temperature burn.

These people are not fit to be "warm babies":

1, pregnant woman. This kind of fever patch will cause internal heat in pregnant women, and the fetus will also produce too much internal heat, and will carry all kinds of fever after birth.

2. Baby. "Warm baby" is also not suitable for babies, because the newborn's skin is delicate, which will lead to burns if you are not careful.

3, diabetes and blood circulation disorders. People with diabetes and blood circulation disorder have low skin thermal sensitivity, which is easy to cause cryogenic burns when using.

Baidu encyclopedia-warm baby

People's Network-Expert: Stick a warm baby to keep out the cold? Beware of low temperature burns.

People's Network-It hurts to warm the baby incorrectly! Three types of people are not applicable.