1. Make the plastic bottle uniform on the wall thickness. This is where all consumers pay the most attention. Especially the printed outer surface should be flat and continuous; if the liquid plastic bottle contains handles, grooves, ribs and other structures.
2. On the printing surface of the plastic bottle. When designing, be careful not to cause an inconvenience to the printing operation. The label surface needs to be flat. A "frame" can be designed on the outside of the plastic bottle to make the label position accurately.
3. When using labels on the exterior of the plastic bottle. No movement occurs. For example, the middle of the plastic bottle is relatively thin.
4. Change the shape of the plastic bottle. In this way, we can increase the peripheral grooves and ribs on the outer surface of the plastic bottle, so that the rigidity and bending resistance of the plastic bottle can be improved. However, if it is a longitudinal groove and a reinforcing rib, the deviation, sagging and deformation of the plastic bottle under temporary load can be eliminated.
5. When we design squeeze plastic bottles. The cross-section of the plastic bottle needs to be rectangular or oval, and for the flexible plastic bottle, the cross-section inside is best to be round. This makes it easier for the contents to be squeezed out of the plastic bottle.
6. When blow molding. First of all, it must tend to harden first. In this way, the wall thickness of this part will be larger. At the edge and corner, when the parison is inflated to the place where it finally touches, the wall thickness of the part will be smaller. Therefore, the edges and corners of the plastic bottle need to be designed with rounded corners.