1. Cup lid
The cup lid is an important component of a thermos cup, which plays a role in preventing leakage and maintaining temperature. Common cup lids include screw caps and button caps, which are mostly made of food grade silicone and PP. Screw caps are not prone to water leakage, but opening and closing them is relatively troublesome; Button style is convenient to operate, but it is prone to leakage.
2. Sealing ring
The sealing ring is also a key component of the insulated cup, usually located between the cup lid and the cup body. Common sealing ring materials include silicone, rubber, polyurethane, etc. The function of the sealing ring is to ensure the sealing of the cup, prevent hot water overflow and cold water leakage.
3. Cup body
The outer layer of the thermos cup is mostly made of stainless steel, and some materials include ceramics, glass, etc. Stainless steel insulated cups have strong anti rust properties, are easy to clean, and have beautiful ceramic cup body shapes, suitable for household use.
4. Insulation layer
The insulation layer generally uses ultraviolet light cured polyurethane, which has excellent insulation effect. High quality insulated cups also use vacuum insulation technology inside the insulation layer to ensure that hot water stays at a high temperature for a long time inside the insulated cup.
5. Filter mesh
The filter is specifically designed for liquids that need to be filtered, such as tea drinks, and is usually located at the mouth of the cup. The filter material is generally stainless steel, which can prevent floating objects such as tea leaves from entering the mouth, ensuring the taste and drinking experience of tea drinks.
In summary, the components of a thermos cup include the cup lid, sealing ring, cup body, insulation layer, and filter screen. Each component is crucial and has different functions and characteristics. When purchasing a thermos, you need to choose the appropriate material and style according to your own needs.

