Changing the surface shape of plastic bottles, such as making the middle part relatively thinner, and adding circumferential grooves or ribs on the surface of the plastic bottle, can enhance the rigidity and bending resistance of the plastic bottle. Longitudinal grooves or reinforcing ribs can eliminate the offset, sagging or deformation of the plastic bottle under long-term load.
By changing the surface shape of plastic bottles, such as making the middle part relatively thinner, adding circumferential grooves or ribs on the surface of the plastic bottle, the rigidity and bending resistance of the plastic bottle can be enhanced. Longitudinal grooves or reinforcing ribs can eliminate the offset, sagging or deformation of the plastic bottle under long-term load.
When designing extrusion-type plastic bottles, if the material is high-density polyethylene or polypropylene, the cross-section of the plastic bottle should be rectangular or elliptical. For plastic bottles made of low-density polyethylene or other flexible materials, a circular cross-section is preferable. This facilitates the extrusion of the contents from the plastic bottle.
To ensure uniform wall thickness of plastic bottles, it is necessary to pay attention to the symmetry of the bottle's shape. Extreme stretching points and areas should be minimized as much as possible. All transitions should be made with arc transitions.
4. The printed surface of plastic bottles is the area that attracts the most attention from consumers. The printed surface should be smooth and continuous. If the plastic bottle has structures such as handles, grooves, and reinforcing ribs, special attention should be paid during the design process to avoid causing inconvenience to the printing operation.
5. Keep dry: Plastic bottles need to be kept dry during use. If they are not dried for a long time, mold and bacteria will breed, which will affect our health.
6. Avoid direct sunlight: If plastic bottles are exposed to direct sunlight for a long time, they will deteriorate due to ultraviolet radiation, thus affecting their service life.
7. Avoid high temperatures: High temperatures can cause plastic bottles to deform, which will seriously affect their service life. Therefore, when storing or using plastic bottles, it is essential to avoid high-temperature areas.
8. Avoid steel wool balls: When cleaning plastic bottles, never use steel wool balls or hard brushes. This can cause scratches, damage and other problems.
9. Avoid reusing: If you notice large scratches on the surface of a plastic bottle during use, or if it has been impacted or deformed, you should discard it immediately. Additionally, plastic bottles that have been reused should not be used to store food or liquids.
The above are the matters needing attention when using plastic bottles. If we can use plastic bottles correctly according to these details, not only can we extend their service life, but also ensure our health.
2026
