The result of 18 months of R&D work at Clondalkin’s plant in Rhineland town of Höxter, it has been produced to meet ongoing concerns over the migration of ink components into dry foods during prolonged storage. This was sparked by research by Swiss authorities in 2010 that found unsuspected high levels of mineral oil components in dry goods sampled from German supermarket shelves.
To address this Wentopro is designed to be used in liner bags for products such as rice, dry pasta and noodles, baby food, and cereal products.
Christian Claes is business development director at Clondalkin Flexible Packaging Wentus. He says: ‘The development of the Wentopro barrier film is an important advance for the food packaging industry.
‘The subject of mineral hydrocarbon exposure through food and the potential consumer health risks of this is a hot topic at the moment. Our protective film offers food manufacturers protection and reassurance that their products carry very limited risk of any such contamination.’
The developer notes that Wentopro keeps migration of mineral oil aromatic hydrocarbons (MOAHs) and mineral oil saturated hydrocarbons (MOSHs) to less than 0.2mg/kg. This is significantly below the recommended maximums – 0.5mg/kg and 2mg/kg respectively – set by the German Federal Ministry of Food, Agriculture and Consumer Protection (BMELV).
Claes adds: ‘We have created two different variants of the film – WSL 343040, which protects against MOSH and MOAH; and WSL 143031, which offers additional protection, not just against mineral oils, but also against UV photoinitiator exposure used in curing inks on cardboard and food labels.
‘The migration of these UV photoinitiators into food has also been the subject of recent scientific debate, therefore the Wentopro barrier film WSL 143031 offers double protection against both types of chemical.’
Both of these new lines are available in both translucent and white formulations; and also boast strong moisture barrier performance.
This article comes from Food Contact World, which provides exclusive news and analysis on developments in digital print trends, markets, and technologies.