The first step in making PP luggage is the careful selection of raw materials. We only choose high-quality polypropylene materials, which are known for their light weight, high strength, and good impact resistance. These characteristics ensure that the luggage is both durable and easy to carry, meeting the needs of travelers.
Once the raw materials are selected, they are sent to the melting equipment. The polypropylene pellets are heated to a molten state at a specific temperature. After melting, the liquid PP is injected into the pre-designed molds through injection molding machines. The molds are precisely machined to give the luggage its specific shape and size. During the molding process, the pressure and temperature are strictly controlled to ensure the quality and integrity of the product. After cooling and solidifying in the mold, the rough shape of the PP luggage shell is formed.
The molded PP luggage shell is then transferred to the cutting and trimming section. Here, using advanced cutting machines, the excess edges and burrs on the shell are carefully removed to make the edges smooth and the overall shape more precise. This step requires a high degree of precision to ensure that each piece of luggage meets our strict quality standards.
After the shell is cut and trimmed, it enters the assembly stage. Workers skillfully install various accessories on the luggage shell, such as telescopic handles, wheels, zippers, and handles. The telescopic handles are made of high-quality aluminum alloy, which is strong and durable and can be adjusted to different heights for the convenience of users. The wheels are carefully selected for their smooth rotation and low noise. The zippers are of high quality, ensuring smooth opening and closing. Each accessory is installed with precision to ensure the functionality and usability of the luggage.
Once the accessories are assembled, the luggage moves on to the interior decoration stage. First, a layer of glue is evenly applied to the inner wall of the luggage shell by robotic arms. Then, the carefully cut lining fabric is pasted onto the inner wall by workers. The lining fabric is not only soft and comfortable but also has good wear resistance and tear resistance. In addition to the lining, some compartments and pockets are also added inside the luggage to increase its storage capacity and organization.
Before leaving the factory, each piece of PP luggage undergoes a strict quality inspection. Our professional quality inspection team checks every detail of the luggage, from the appearance of the shell to the functionality of the accessories, from the smoothness of the zipper to the firmness of the handle. We also conduct some special tests, such as drop tests and load-bearing tests, to ensure that the luggage can withstand the rigors of travel. Only the luggage that passes the quality inspection can be packaged and shipped to customers.
The final step is packaging and shipping. The inspected PP luggage is carefully packaged in high-quality packaging materials to prevent damage during transportation. We have established a complete logistics and distribution system to ensure that the luggage can be delivered to customers around the world in a timely and accurate manner.