Plastic bags are common in supermarkets and shopping malls, and they are also indispensable necessities in people's daily life. Usually, there are tens of thousands of custom-made plastic bags in supermarkets. Because of the particularity of plastic film, it needs mass production. What is the production process of plastic bags and what materials are used?
How are plastic bags produced?
Determine specifications, dimensions and printed documents
The specifications of plastic bags are similar, non-uniform, and can be customized according to customer requirements. Conventional specifications such as: 20*32cm, 25*40cm, 30*48cm, 35*55cm. The thickness of single layer shall not be less than 0.025mm according to the standard of plastic limit order. Printed manuscripts can be delivered to the manufacturer according to samples, or designed by the customer, or the plastic bag manufacturer can design on behalf of the manufacturer.
Blow film according to the order quantity and contact the plate making factory at the same time. Plate making blow film refers to a plastic processing process that heats and melts plastic particles, extrudes them through the extruder, and then blows them into plastic film through the blower. Plastic vest bags are made of high-density polyethylene (HDPE, also known as low-pressure material). The time required for plate making is usually about 5 days, which can be rented from the plate making factory.
The printing of plastic vest bags is generally simple, with uncomplicated colors and simplicity.
Sealing and cutting
Plastic bag sealing and cutting is to seal and excavate the printed roll, which is also the next step of plastic bag forming.
The polyethylene material used to make plastic bags appears milky white before processing, but its shape will also change after some primary processing. For example, this material appears translucent in the state of thin section, which is also the pre work state of plastic bag molding. Note:
The polyethylene material used to make plastic bags has good durability, and it can also have its own characteristics for life and chemical supplies within a certain range of Chengdu. As we can find in the process of use, the material of the vest bag has a very good non hygroscopic performance, and can be well waterproof against steam, which also greatly extends its field of use.
In particular, this material for making vest bags has very good electrical properties, and its insulation dielectric strength is also very high. It is worth mentioning that this material can be well used at different temperatures, which also greatly improves the use ability of plastic bags.
The above is a detailed interpretation of the plastic bag production process. I hope it will help you. Of course, if you don't know anything about this, you can come to the website at any time https://www.jnsuliao.com Consult us.