Sappi and Xeikon collaborate on improvement of resource-saving packaging


Frank Jacobs, market intel and senior product supervisor at Flint Group Digital, and Alexander Schröder, senior product utility engineer at Sappi Europe, are impressed with the mix of TITON know-how and Sappi’s options (Picture: Sappi Europe)

Sappi has collaborated with Xeikon in a developmental partnership. The companions are taking a step in the direction of direct printing on paper-based supplies and bettering the recyclability of the ensuing versatile packaging.

With its newest dry toner answer, TITON, and the Xeikon TX500, XEIKON is getting into the paper-based versatile packaging market, which is experiencing sturdy progress on account of demand for resource-saving, recyclable and plastic-free alternate options from end-users in addition to model homeowners and converters.

TITON meets paper: No extra varnishing or lamination required

Frank Jacobs, market intel and senior product supervisor at Flint Group Digital, understands that the calls for made on inks for direct printing on paper-based supplies for purposes within the versatile packaging sector, eg for meals packaging, similar to these provided by Sappi, are very excessive: “Over and above making certain a superb print consequence, the inks should be extraordinarily resistant all through the packaging course of and insensitive to temperature, eg for heat-sealing. And, particularly for purposes within the meals sector, additionally they should be odourless, tasteless, food-safe and migration-proof.”

Xeikon designs, develops and delivers web-fed digital color presses for label and packaging purposes. These printing machines work with completely different imaging applied sciences, open workflow software program and application-specific consumables and substrates. Every product is designed with with the most effective application-based substrate and toner or ink mixture in thoughts to maximise output.

With TITON, the brand new toner formulation merges the food-safe and odourless properties of dry toner with the resistance to chemical compounds and mechanical abrasion of UV inkjet ink. It additionally withstands temperatures of as much as 220-260°C – an essential property for making certain packaging integrity and product safety. This new formulation additionally permits TITON to be printed instantly onto paper-based packaging supplies with out the necessity for extra varnishing or lamination to guard the print.

Polished outcomes with Seal Silk and AvantGuard S

TITON has been examined with Sappi merchandise. . Because the starting of the collaboration on the finish of 2022, in depth assessments have revealed two qualities specifically that work nicely with the toner:

“We achieved the most effective printing outcomes with our modern purposeful papers Sappi Seal Silk with a 67 g/m2 foundation weight and Sappi AvantGuard S Pure in 75g/m2 grammage,” defined Sibylle Hajostek, market supervisor of packaging options at Sappi. “Each papers have an exceptionally high-quality enchantment and have been developed particularly for the versatile packaging market. The outcomes we achieved together with the TITON know-how left completely nothing to be desired – neither visually nor functionally.”

The one-side coated, heat-sealable Seal Silk is really useful for normal versatile packaging within the meals and non-food sectors specifically, whereas the uncoated, heat-sealable AvantGuard S Pure high-barrier paper is equally appropriate for numerous versatile packaging purposes within the meals and non-food markets.

Jacobs added: “The print picture we created together with the Sappi papers was nothing lower than phenomenal! Outcomes like these on paper-based substrates can in any other case solely be achieved with flexo printing.”

Based mostly on the consequence, Xeikon’s buyer ACM Plastic in Italy is presently producing with Sappi barrier paper. Preliminary assessments are additionally underway at ACM to place one other Sappi high quality, AvantGuard S Gloss, by its paces.

“It might seem that an engineer at ACM couldn’t wait to check extra substrates from Sappi,” Jacobs mentioned. “Similar to the opposite two grades, AvantGuard S Gloss has up to now proven the most effective visible and purposeful outcomes – with out primer or varnish. To say the least, it’s very promising. And we’re simply at first of this journey!”

Straightforward recycling within the paper waste stream

Using a primer or varnish, which typically required, can have a unfavourable affect on the recyclability of the ultimate packaging. And paper-based substrates specifically often require a primer when printing with water-based inkjet or UV inkjet know-how and liquid toner to make sure passable outcomes. Dry toner know-how, however, often requires an extra coating for mechanical stability within the additional packaging course of and infrequently reaches its limits when it comes to thermal stability.

With TITON know-how, these extra processing steps are not vital. Mixed with Sappi’s recyclable barrier paper-based options, full recycling of your entire packaging within the paper waste stream and subsequent restoration, eg for corrugated purposes, are simply achieved.

Product security for model homeowners, new enterprise fields for printers and converters

As quite a few assessments exhibit, the know-how has handed all standards of the Nestlé Customary on Printing Inks for Meals Packaging, the EUPIA Exclusion Coverage for Printing Inks, the Swiss Ordinance in addition to what is thought concerning the German Ink Ordinance and different migration assessments with flying colors. This makes the mix of TITON know-how and Sappi’s paper-based answer ideally suited for a variety of purposes with direct or oblique meals contact. The 2 companions have additionally helped model homeowners swap to paper-based alternate options for meals packaging, similar to versatile packaging for baked items, confectionery, sugar, flour, herbs and spices and tea.

The know-how even opens up new enterprise areas for printers and converters: Functions that have been beforehand solely attainable with typical flexo presses can be addressed extra rapidly and flexibly by way of digital printing. Xeikon not too long ago launched the TX500 – a brand new member of its CHEETAH collection – the primary digital press to make use of TITON know-how. Moreover, together with paper-based substrates, extra set-up time for coating, laminating and the same old required upkeep will be saved and waste will be prevented.

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