1. There is thermal insulation material in the thermal insulation bag. The thermal conductivity of this material is relatively low, which hinders the contact with the air, so that the temperature in the bag can accumulate and cannot be directly dissipated. The thermal insulation bag is made of Oxford cloth or nylon cloth, which is tough and wear-resistant. The bottom is equipped with a waterproof rubber sole and a non-slip pad, an independent thermal food storage warehouse, equipped with an anti-pressure system, which will not be squeezed.
2. Insulation bag, also known as a passive refrigerator, is a bag with high thermal insulation and a constant temperature effect, which has the functions of keeping cold, warmth and freshness. and convection to reduce heat loss.
3. The thermal insulation bag adopts special materials, especially the inner material, the density is higher than the density, and the super-dense thermal insulation cotton is often added in the middle. The thermal insulation lunch box is developed from the thermal insulation bottle. The thermal insulation principle is the same as that of the thermal insulation bottle. The gallbladder can reflect thermal radiation, and the vacuum layer or insulation layer of the cup can block the heat transfer.
4. The thermal insulation bag is a bag with a constant temperature effect, which can prevent cold/warm in winter and cool down in summer. The thermal insulation layer is super thick thermal insulation cotton, which has a good thermal insulation effect, is foldable and easy to carry. PE cotton has the function of keeping warm and keeping warm.
