November 7, 2022

Efficiency in the purging process for thin wall packaging manufacturing

The manufacturing of thin wall packaging products is a highly attractive market. However the technical process is characterised by multiple challenges. These include highly complex moulds with many cavities, extremely low part weight, high volume production and the necessity of multiple, sometimes radical colour changes. In particular the purging process becomes difficult. How do plastics companies deal with the issues involved?

Thin wall packaging products are an increasingly important growing market for the thermoplastic (TP) industry. Just think of e.g. vegetable bags, packaging for cosmetics such as eye drop dispensers or an accelerating number of health care products. According to market research institute Mordor Intelligence, the thin wall packaging market was valued at USD 38.58 billion in 2020 and is expected to reach USD 55.92 billion by 2026. However, manufacturing is characterised by highly complex moulds with extremely low part weight, high volume production and the necessity of colour changes.

Due to low viscosity, among other things, one of the challenges in the purging process in thin wall applications is efficiency: Manufacturers are looking for on-the-fly solutions that prevents downtime. Further goals are for an easy and quick procedure as well as a reduction of scrap. The cleaning of hot runners poses an extraordinary difficulty: Purging these effectively is only possible by molding parts.

Ultra Purge™ 1001 for “on-the-fly” purging of injection moulding machines with hot runners

A cutting-edge solution for the purging process while manufacturing thin wall packaging products is Ultra Purge ™ 1001 by Chem-Trend – a ready-to-use purging compound that is designed to clean low viscosity polyolefins and suitable for the use in injection moulding machines. It even allows on-the-fly purge with hot runners during operation. Consequently, Chem-Trend can help manufacturers reduce downtime and scrap by 50 per cent by using the product.

Ultra Purge ™ 1001 consists of high quality thermoplastic polymers as well as highly efficient cleaning additives. All components of the formulation are in compliance with EU Regulation No. 10/2011 and US-American legislation (21 CFR) for food contact materials. The benefits in a nutshell:

  • Recommended for thin wall packaging materials made of polyolefins
  • Rapid cleaning effect
  • Easy to use


Read our case study for more information:

Ultra Purge ™ 1001


Purging by producing parts? Learn more in our application video.


Learn more about the Chem-Trend purging compounds for the food & healthcare applications.

Our CHEMPIONS will gladly advise you.

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