1. The life jacket filled with buoyancy material, that is, the fabric is made of nylon cloth or neoprene, and the buoyancy material is filled in the middle.
2. Marine Work Life Jacket: Made of high-strength waterproof material, similar to the principle of inflatable lifebuoy or swimming ring. Divided into automatic inflatable or passive inflatable. But the most important thing for this kind of life jacket is: absolutely avoid sharp objects to pierce or wear the waterproof layer, and it will cause unimaginable serious consequences after air leakage.
Generally used belong to Marine Work Life Jacket. The interior is made of EVA foam material, which is compressed and 3D three-dimensionally molded, and its thickness is about 4 cm (the domestic production is 5-6 pieces of thin hair material, and the thickness is about 5-7 cm).
How to use the Marine Work Life Jacket: Put the life jacket whistle bag on your body; pull the zipper, tighten the front tie strap with both hands, and fasten the neck strap; Is a place bound.
Use color: Bright colors or colors with fluorescent components in life jackets will stimulate the optic nerve. It may be related to the wavelength of this color, which is easily accepted by the human eye and is not easily confused by other colors. It will be more conspicuous. In this way, in the event of an accident wearing a life jacket, it is easy to be found and rescue can be implemented as soon as possible.