袋子知识

Is the plastic bag pvc

PVC is the abbreviation of Polyvinyl Chloride, the English full name is polyvinyl chloride, is one of the world's largest production of general plastics, is widely used in building materials, industrial products, daily necessities, floor leather, floor tiles, artificial leather, pipe, wire and cable, packaging film, bottles, foam materials, sealing materials, fibers and other fields. The plastic bag is a bag-like container made of plastic, is one of the essential items in People's Daily life, usually made of polyethylene or polypropylene and other plastics, plastic bags are not necessarily PVC material.

What is the manufacturing process of plastic bags?

The manufacturing process of plastic bags generally includes the following steps:

Determine the specification size and printing documents: according to customer requirements to customize the specifications and sizes of plastic bags, and determine the printing documents, including printing content and color.

Purchase raw material film: According to the production needs, purchase the required raw material film, such as high-density polyethylene, polypropylene, etc.

Composite plastic flexible packaging production: different films are compounded together to form plastic flexible packaging materials.

Engraving copperplate: Engraving copperplate according to the pattern and size required by the customer for the intaglio printing process.

Color printing, composite, bag making: color printing, composite, bag making and other processing on plastic flexible packaging materials to form plastic bag finished products.

Packaging and transportation: The finished plastic bags are packed and transported to the destination.

Specific manufacturing processes and techniques may vary depending on materials, specifications, printing requirements and other factors. At the same time, the manufacturing process needs to pay attention to environmental protection and safety in production.