What is the difference between 2-layer tubes and 5-layer tubes in cosmetic tube packaging?

From the above picture, we can find that there are five layers. The outer layer, bonding layer, isolation layer, bonding layer, and inner layer for a five-layer tube. If the contents of the packaging of the daily chemical company are some products that are particularly sensitive to oxygen (such as some whitening cosmetics) or whose […]
Process analysis of cosmetic glass bottle packaging materials

In the cosmetics industry, glass bottles, as a common packaging material, are widely welcomed for their elegant appearance and excellent protective properties. The production of glass bottles involves a variety of processes that not only ensure the usefulness of the bottles but also give them their unique beauty. The basic molding process of glass bottles […]
What is the difference between extrusion blow molding and injection blow molding in packaging?

As two major hollow blow molding processes, what are the differences between extrusion blow molding (referred to as “extrusion blow”) and injection blow molding (referred to as “injection blow”)? What are their strengths, weaknesses, and applications? What is the machine composition of the two processes? What are the technical difficulties of blow molding production of […]