1. Basic composition of bottle cap structure
Bottle caps are generally made of materials such as plastic, metal or rubber, and their basic structure consists of the following parts:
1. Screw cap: responsible for screwing with the bottle mouth to seal the contents of the bottle.
2. Sealing pad: located inside the screw cap, through elastic sealing, to ensure the tightness of the bottle cap.
3. Top cap: provides shape stability for the bottle cap.
2. Types and applications of bottle caps
1. Ordinary cap: simple structure, suitable for packaging food, cosmetics and daily necessities, etc.
2. Press cap: requires top force press cap, suitable for some soda, jam and other products with wide bottle mouths.
3. Rotating cap: requires clockwise or counterclockwise rotation, suitable for various bottle mouths.
4. Pull ring cap: requires opening the ring buckle, suitable for some beverages, bottled water and other products.
3. How to choose a suitable bottle cap
1. Look at the material: the material of the bottle cap should match the material of the bottle body to avoid chemical reactions.
2. Check the fit: Choose a suitable screw cap to ensure that the cap fits the bottle well.
3. Check the sealing: The sealing gasket of the bottle cap should fit the bottle mouth completely to ensure airtightness.
4. Check the shelf life: For bottle caps that are easy to expire, choose the type with a longer shelf life.
In summary, understanding the structure and types of bottle caps, as well as how to choose the right bottle caps, can help us better use bottled products and ensure the quality and safety of the products.
