Akademik Veri Yönetim Sistemi
5th International Non-Wood Forest Products Symposium, Bartın, Türkiye, 27 - 28 Eylül 2023, ss.79
Plastic film coatings have been used for production of packaging material for many years. It is important
to ensure that the material used in food packaging does not contain chemicals that may harm human
health.
In this study, unbleached kraft hand sheets were coated with gelatin and sodium alginate based
biopolymer solutions prepared using glycerol additive as plasticizer. The brush coating method was used
to apply the prepared dispersions on the papers. Tensile, tear, burst strengths as mechanical properties
and COBB, air permeability tests as physical properties were determined.
All mechanical properties of the papers produced with both gelatin and sodium alginate coatings have
been improved. Compared to the control papers, it was observed that the water-repellent properties of
the paper coated with gelatin increased and the water-absorption properties of the papers coated with
sodium alginate were increased. While air permeability of gelatin coated papers increased compared to
control samples, it was determined that there was no air permeability in sodium alginate coated papers.
As a result of the study, the desired mechanical and physical properties for packaging papers were
improved.