1. Changing the surface shape of plastic bottles, such as making the middle of the bottle relatively thinner and adding circumferential grooves or ribs on the surface of the bottle, can improve the rigidity and bending resistance of the plastic bottle. Longitudinal grooves or reinforcing ribs can eliminate the displacement, sagging, or deformation of plastic bottles under long-term loads

2. When designing extruded plastic bottles, if the material is high-density polyethylene or polypropylene, the cross-section of the plastic bottle should be rectangular or elliptical. For low-density polyethylene or other flexible plastic bottles, a circular cross-section is preferred. This makes it easier for the contents to be squeezed out of the plastic bottle.

3. To ensure uniform wall thickness of plastic bottles, attention should be paid to the symmetry of their shape. Try to minimize extreme stretching points and areas. All transitions are made using circular arcs.

4. The printing surface of plastic bottles is the most focused area for consumers' attention. The printing surface should be flat and continuous; If the plastic bottle contains structures such as handles, grooves, and reinforcing ribs, attention should be paid to not causing inconvenience to the printing operation during design.

Dongguan Sanming Plastic and Hardware Products Co., Ltd. is located in Dongcheng District, Dongguan City, specializing in the research and manufacturing of plastic packaging products. The plastic containers produced, such as PP, PET, PETG, PE, etc., are widely used in the food, cosmetics, and chemical industries. Our company currently covers an area of over 10000 square meters and involves production processes such as plastic mold design, manufacturing, injection molding, blow molding, and assembly. The company has various precision mold working machines, injection molding machines, high-speed thin-walled molding machines, blow molding machines, and various peripheral auxiliary equipment, as well as experienced engineering and technical personnel and skilled operators.