Starch – aroma barrier

Coatings based on starch for the optimization and model detection of the aroma barrier of packaging papers

Workgroup: Compliance of packaging material

Research Partner and Scientific Guidance:

  1. Papiertechnische Stiftung, Institut für Zellstoff und Papier, PTS-IZP, Ina Greiffenberg
  2. Fraunhofer-Institut für Verfahrenstechnik und Verpackung IVV, Dr. Frank Welle

IGF: 21394 BG
Financing: BMWK
Duration: 2020 – 2022

The aim of the project is to optimize water-based coatings on the basis of starch, which should act as a barrier layer for flavorings in flexible packaging. In addition to this, a permeation model is to be developed for these coatings for the entire range of variations in aroma substances, which is to be used for better prognoses of the aroma substance barrier from data on the oxygen and mineral oil barrier.

The solution includes the optimization of starch-containing coating formulas, the investigation of the application and processing properties as well as the review of recyclability. At the same time, a permeation model is being developed based on a complex permeation and aroma analysis.

The desired results include formulations for coatings based on starch, which are optimized with regard to their application properties (barrier effect, applicability and processing). This also includes a model for describing and forecasting the blocking effect.

The results include recipe concepts that can be implemented in practice directly by manufacturers of starch and flexible paper-based packaging. In addition, a computational model is provided which enables better prognoses in practice than before.

In addition to application-oriented research, the field of activity of the Paper Technology Foundation also includes further training and advice for employees from SMEs, in particular from the paper producing and processing industries. The knowledge gained in the project will be available on the PTS website and the transfer of knowledge will be promoted through reports and publications in practice.

The IGF project presented here by the Research Association of the Industrial Association for Food Technology and Packaging (IVLV e.V.) is funded by the Federal Ministry for Economic Affairs and Climate Action via the AiF as part of the program for the promotion of industrial community research (IGF) based on a decision of the German Bundestag.