What are the determinants of plastic bottle type

What are the determinants of plastic bottle type:

Plastic bottles should have sufficient rigidity and an attractive appearance. The most common shapes of plastic bottles are round, square, oval, etc. From a usage perspective, they each have their own advantages and disadvantages. The round plastic bottle has high rigidity, but the appearance is not beautiful. Therefore, in order to ensure the rigidity of the plastic. In addition to the selection of materials with stiffness, the stiffness and load-resistant strength of plastic bottles should be enhanced through the design of the plastic bottle shape.

(1) Change the surface shape of the plastic bottle. For example, the middle of the plastic bottle is thinner, and the circumferential grooves or ribs on the surface of the plastic bottle are added to improve the rigidity and bending resistance of the plastic bottle. Longitudinal grooves or reinforcing ribs can eliminate deflection, sagging or deformation of plastic bottles under long-term load.

(2) When designing extruded plastic bottles, if the material is high-density PP or PE, the cross-section of the plastic bottle should be rectangular or oval. For low-density polyethylene and other flexible plastic bottles, the cross-section A round shape is better. This facilitates the extrusion of the contents from the plastic bottle. Because the density of PET material is relatively stable, the basic shape of the plastic bottle can be controlled.

(3) In order to make the wall thickness of the plastic bottle uniform, attention should be paid to the symmetry of the shape of the plastic bottle. Minimize extreme stretch points and areas. Arc transitions are used at all transitions.

(4) The printing surface of the plastic bottle is the part that consumers pay the most attention to. The printing surface should be flat and continuous; if the printing surface of the plastic bottle is the part where consumers pay the most attention. The printing surface should be flat and continuous; if the plastic bottle contains structures such as handles, grooves, and ribs, care should be taken not to cause inconvenience to the printing operation.

When labeling the surface of the plastic bottle, the labeling surface should be flat, and a frame can be designed on the surface of the plastic bottle, so that the labeling standard can be positioned without moving.