What are the manufacturing processes of plastic sports water bottles- Yuyao Sanfeng Plastic Mold Co., Ltd.

The manufacturing process of plastic sports water bottles is a complex and precise process designed to ensure that the product is of high quality, good performance and meets relevant hygiene and safety standards.

Raw material selection:

The first step in manufacturing plastic sports water bottles is choosing the right raw materials. Commonly used plastics include polyethylene (PE), polypropylene (PP), polyethylene terephthalate (PET), etc. These materials need to meet food-grade standards to ensure that plastic water bottles do not release harmful substances. Sometimes, in order to enhance the environmental performance of the material, degradable bioplastics can also be selected.

Injection molding:

Injection molding is one of the most common processes used to manufacture plastic sports water bottles. The process includes the following steps:

Raw material melting: Plastic pellets are heated to a high enough temperature that they melt into a liquid state.

Injection Mold: Molten plastic is injected into a pre-designed mold through a high-pressure injection system. The mold usually takes the shape of a water bottle and is designed with multiple cavities to improve production efficiency.

Cooling and solidification: After being injected into the mold, the plastic is rapidly cooled to solidify into the shape of a water bottle.

Demoulding: The formed water bottle is demoulded from the mold and is ready for the next step of processing.

Blow molding (for some specially designed bottles):

Blow molding is another common plastic bottle manufacturing process, which is suitable for some special-shaped bottles. The process mainly includes:

Extrusion prefabrication: Plastic pellets are extruded into prefabricated bottle shapes through an extrusion machine.

Blow molding: The preformed bottle shape is placed into a forming mold and blown into its final shape by a high-pressure air stream.

Cooling and solidification: After blow molding, the bottle is cooled to ensure its stability.

Subsequent processing:

The aftermath of the manufacturing process is very important to ensure that the final product meets quality standards:

Flash removal: During the molding process, the bottle mouth and bottom may have some uneven or redundant edges, which need to be removed to ensure that the mouth is flat and easy to use.

Printing and Packaging: Water bottles can be printed on request, including branding, capacity information, etc. This is followed by packaging, often using environmentally friendly materials.