Akademik Veri Yönetim Sistemi
NORDIC PULP AND PAPER RESEARCH JOURNAL, cilt.1, sa.1, ss.1, 2025 (SCI-Expanded)
This investigation examined the development of a coating blend suitable
for white top testliner paper to enhance its barrier properties and
printability. The research focused on analyzing and elucidating the
rheological and barrier properties crucial for the effective application
of coating color. A double-coat application process was employed, with
the pre-coating layer filling the rough surface profile and the
top-coating layer improving the smoothness. Clay and calcium carbonate
were used as pigments and latex as binder. Dispersant and thickener
were also added. A barrier chemical was also incorporated in select
formulations. The results indicated that the coating significantly
modified the optical and barrier properties of the paper. The
brightness, whiteness, and grease resistance increased, whereas the air
permeability decreased. Barrier chemicals were particularly efficacious
in reducing wettability and improving grease resistance. In conclusion,
this study demonstrates that a well-designed coating strategy
can enhance the functionality of recycled paper, rendering it a more
viable option for packaging application.