Most products are packaged with a maximum temperature of 55-60 °C. Do you have products with a higher filling temperature? No problem. PET Power also carries out the packaging of products above 70 °C. However, during packaging, the technology as well as the design and material of the PET bottle or container, needs to be taken into account. PET Power provides several transparent hot-fill plastic materials. For example, High Crystallised PET, a variety of copolyesters, Polypropylene and PEN. Blends of a number of these materials can also be provided.
For temperatures above 70 °C in particular, PET Power has a state-of-the-art ISBM machine that uses the hot-fill technology. We use this machine to produce heat-set PET bottles and containers. Several solutions are possible with this type of machine. The temperature of your filling product determines the thickness of the wall and mouth of the bottle or container. Should the product require even higher temperatures, for example above 85 °C, we recommend a special treatment for the mouth and to blow the container upon stretching. PET Power performs this so-called crystallisation process using special ‘Double Blow’ ISBM machines.
PET Power is an expert in the field of hot fill technology. In addition, we ensure optimal coordination between technology and material for products with a higher filling temperature. Not only should the PET material be heat-resistant, it should also have the right properties. After chilling, there is often a negative pressure in the bottle. Packaging has to be designed in such a way that it can accommodate this. PET Power will assist you in the design of the PET bottle or container, and will make sure that they have reinforcing ribs around the waist and on the bottom.
There is a lot involved in a creating hot fill packaging. PET Power is an expert in this area. Together we will explore the options and select the best possible technologies and materials for your hot fill products. It may be, for example, that some materials have different transparency or barrier properties. Together with PET Power, your packaging will be a hit.
Do you want to know more about hot fill packaging solutions? Please send an email to: ln.rewoptep@ofni.
Hot fill categories for your PET packaging
|Category||Products Examples||Filling Temperature||Cooling after Filling||Machine type||Neck finish|
|Normal||Dry Food Spices Bread Spread||< 60 °C||Not required||Normal||Standard|
|Semi Heat Resistance||Mayonaise Pasta Sauce Isotonic Drinks||Between 70-75 °C||Occasional||Customized machine (single blow)||Crystallized or fortified depending filling temp|
|High Heat Resistance||Pasta Sauces Jams Fruit Juices||> 85 °C usually around 90 °C||Neccessary||Spcial Machine e.g. HSB (double blow)||Crystallized or fortified|