In the world of blow molding, precision and speed are crucial factors. With the aim of maximizing production capacity and reducing the cost of operations, Techne Packaging has implemented the treatment of Physical Vapor Deposition (PVD), a quick die head coating solution.
In this article we unveil the importance of PVD for rapid color change, examining how this technology not only accelerates color change processes, but also sets a new standard for efficiency, quality and versatility.
PVD, or Physical Vapor Deposition is a coating that is applied to the extrusion head of the blow molding machine. Its function is to improve the smoothness of plastic on metal, reducing the adhesion effect and facilitating faster color change.
The PVD coating treatment involves the deposition of 1200 alternating layers of Chromium Nitride (CrN) and Niobium Nitride (NbN) onto the die head. This results in a surface with a hardness exceeding 2500Hv and a low coefficient of friction (0.4). The high-performance coating is applied at 280°C (536 degrees Fahrenheit), making it applicable to various mechanical and molding applications with temperatures below 850°C (1562 degrees Fahrenheit).
One notable advantage of Techne's PVD solution is its applicability to different metal substrates at low temperatures. Moreover, it complies with safety standards, being suitable for both food contact and medical device applications, meeting ISO 10993-5:2009 and REG EU 1935/2004 requirements.
Techne Packaging ensures a quicker changeover, leading to a reduction in production downtime during color changes. Additionally, the coating minimizes the adhesion of plastic material to metal surfaces, resulting in fewer cleaning interventions. This not only improves efficiency but also reduces operational costs, making it a strategic choice for blow molders.
The consequences and benefits of implementing PVD coating in the blow molding machine are many.
Below are the main ones:
If you have already made up your mind on what kind of coating you want for your bottle packaging and want to know more, download the datasheet.