What Are The Main Materials Of The Thermal Insulation Bag?

The main materials of the thermal insulation bag usually include the following:

Insulation material:
Aluminum foil: Aluminum foil is often used as a insulation layer for thermal insulation bags because of its excellent thermal insulation and reflection properties. Aluminum foil can effectively reflect heat and reduce heat loss.
EPE pearl cotton: This is a new type of environmentally friendly packaging material, composed of low density polyethylene resin by physical foaming to produce countless independent bubbles, with thermal insulation, moisture and humidity, sound insulation and shock.
Foam materials: such as polyurethane foam (PU) or polyethylene foam (EPE), these materials have good thermal insulation properties, can effectively isolate the influence of external temperature on the interior.
Aerogel: In some high-end insulation bags, aerogel may be used as a insulation material. Aerogel is the world's least dense solid with excellent thermal insulation properties.
Outer and inner materials:
Nylon: Nylon is a wear-resistant, tear resistant synthetic fiber, often used to make the outer layer of insulation bags to protect the internal insulation layer from damage.
Polyester: Polyester fiber has good wear resistance, wrinkle resistance and waterproof properties, and is often used as the outer material of thermal insulation bags.
PEVA (polyethylene-vinyl acetate copolymer) : PEVA material is environmentally friendly, non-toxic, feel good, has a certain flexibility, is a common inner material, used for direct contact with food or drink, to ensure safety and health.
PVC (polyvinyl chloride) : Although PVC may be limited in some applications due to its environmental concerns, it still has some water resistance and durability, so it may be used in some specific types of insulation bags. However, many manufacturers are looking for greener alternatives.
Other auxiliary materials:
Zippers, Velcro, buckles, etc. : These materials are used in the opening design of the thermal bag to ensure tightness and portability.
Reflective strips: On some outdoor thermal bags, reflective strips may be added to improve visibility at night.