Some knowledge about plastic bottles

Plastic bottle is a plastic container made of polyester (PET), polyethylene (PE) and polypropylene (PP) as raw materials, adding the corresponding organic solvent, heating at high temperature, and then through plastic mold blow molding, extrusion blow molding or injection molding. Plastic bottles are unbreakable, low-cost and transparent.

Special attention should be paid to avoid contact with vinegar and detergent. Avoid direct sunlight, high temperature, etc. To avoid chemical reactions. Additional, when buying plastic tableware, there should be PE(polyethylene) or PP(polypropylene) mark on the product, decorative design is little, colorless and tasteless, the plastic products with smooth surface.

Transparent plastic bottle appearance and features: high rigidity, oval plastic bottle. However, mold manufacturing costs are relatively high. Therefore, in order to ensure the rigidity of plastic bottles, in addition to high rigid materials, but also through the shape design of plastic bottles to enhance the rigidity and bearing strength of plastic bottles.

In order to demonstrate good advantages and functions, plastic bottles should be rigid enough and aesthetically pleasing. Be able to demonstrate its functionality in different industries. The common shapes of plastic bottles are round, square and oval. From the point of view of use, each has its own advantages and disadvantages. Round plastic bottles have high rigidity, but their appearance is not beautiful. The square plastic bottle is beautiful in appearance, but it is difficult to control the uniform wall thickness of the plastic bottle during the molding process. Plastic bottles can not only have good appearance, but also good product performance and advantages, ensuring that they can make an important contribution in use.

The important thing is to make it symmetrical. Minimize stretch points and positions. All transitions are arcs.

1 Make the wall thickness of the plastic bottle even. That's where consumers are concerned. Printing appearance should be smooth and continuous; If liquid plastic bottles contain handles, grooves, stiffeners and other structures,

2. Plastic bottle printing surface. When designing, care should be taken not to bring inconvenience to printing operation. Smooth the label surface. A "frame" can be designed on the outer surface of the plastic bottle to accurately position the label.

3. When plastic bottles are labeled. Pay attention to label size and reasonable layout according to the actual situation of the bottle.

4. Change the appearance and shape of plastic bottles. By adding circumferential grooves or ribs to the outer surface of the plastic bottle, the rigidity and bending resistance of the plastic bottle can be improved. Longitudinal grooves or stiffeners eliminate deflection, sag, or deformation of plastic bottles under temporary loads. If the material is high-density polyethylene or polypropylene,

Design extruded plastic bottles. Plastic bottles should be rectangular or oval in cross-section. For plastic bottles made from polyethylene or other flexible plastic bottles, the cross section shall be round. This is to facilitate extruding the contents from the plastic bottles.