Industry News

Netstal has created a 100% PET thin-wall cup

by | Mar 14, 2024

Neststal recently announced their most recent development, the ability to create a cup that can be used for packaging, which is recyclable, has thin-walls and is made completely from transparent PET.

The idea of using PET manufactured bottles, rather than thin-walled plastic ones for packaging items such as dairy products, sandwich toppings or a variety of other products, is an idea that is quickly spreading. Statistics from 2020, portrayed that the recycling rate of thin-walled plastic packaging remains low, as only half of the PET bottles that were placed into the market that year were recycled. However, now a new idea of making thin-walled packaging out of PET has come along and there are many benefits within this method. It has excellent recyclability and it meets the requirements that have now been set by the established PET collection systems, which have been put in place to ensure the PET is collected and processed together with PET bottles and turned into high-quality rPET resin.

This desire to have a circular system in which packaging made from recycled materials can be recycled again, is what makes Netstal’s breakthrough so significant. Not only does the clear cup they have created weigh an estimated 15g and have a filling volume of 450ml, the company all sources all their virgin PET from the Eastman Chemical Company. This system is then transformed into a circular system, when the cups are returned to the PET cycle through the NPE recycling program. Furthermore, the labels are also made from PET, which comes from the Belgian IML specialist Verstraete and this means that the cup is able to be recycled in this circular system, even with its label still attached. The cup is manufactured through the use of a hybrid Elion 3200 and is purposefully designed to be suitable for joint recycling with PET bottles.

The Elion 3200 takes four seconds to manufacture the cup and is also an energy-efficient, injection molding machine. The machine is able to meet these standards due to its ability to meet the necessary speed, its excellent performance and dynamics that are created through its electric toggle clamping unit and its hybrid injection unit. It has become well-known as an effective and efficient piece of equipment, as it constantly operates in efficiency class 8 and higher, based off of the Euromap 60.1 system.

The cup that Netstal has produced has been purposefully designed as clear PET, as not adding colours to the material makes it even better for the environment and even more sustainable.

Product Manager Packaging at Netstal, Reto Gmür, commented, “Clear packaging or the absence of color additives is preferred in order to achieve the purest possible quality of rPET. The recycled material obtained in this way can then be processed into new bottles or packaging.”

Gmür also commented on another benefit the machine provides, which is adaptive pressure reduction, meaning that the hydraulic system is permanently regulated at the optimum point. Gmür said, “This option offers the customer enormous advantages. With a lower pressure, we put less strain on the axles of the machine. Availability is therefore even better, and the machine consumes less energy. At the end of the day, Netstal users produce particularly efficiently and at the lowest unit costs.”

Pin It on Pinterest