Sustainability is one of the hot topics of our times. There cannot be a single answer to the question of how we can design the future for sustainability. But there are numerous approaches to solutions. Schreiner Group does not just focus on one course of action but on many: photovoltaics, geothermal energy, and recycling are just a few examples. Special attention is focused on the sustainability of the products themselves. Needle-Trap, Pharma-Tac, or Autoinjector-Labels—label solutions from the Schreiner MediPharm business unit are already available today as a sustainable version. Now the Schreiner ProSecure competence center is developing closure seals for folding boxes that are both tamper-proof and sustainable. As usual, the sustainable first-opening indication solutions emphasize high quality and reliable functionality.

Initially, potentially usable materials were investigated in a very complex process because sustainability not only means that something is environmentally compatible. A sustainable material must ensure that its utilization will not have a negative impact on future generations—either environmentally, economically, or socially. Accordingly, in addition to the amount of required fossil raw materials, energy and water consumption, and greenhouse gas emissions, other metrics concerning the financial and social effects must be considered. The potential candidates that Schreiner ProSecure ultimately identified in particular were recycled films, plastics produced from renewable resources, and papers with sustainability certification. Subsequently, these materials were subjected to a large number of tests to assess their suitability for use as closure seals.

Recycled films exhibited good performance. They are particularly well-suited for the production of tamper-proof closure seals. In addition, they offer significant savings potential in relation to the consumption of water, energy, and fossil materials—proportionally to the recycled plastic materials content. Following these extensive basic investigations, Schreiner ProSecure is now in the process of qualifying suitable materials enabling the development of sustainable closure seals in the near future.