Shahram Eslami, R&D expert at Paya Polymer
Dana, highlighted the importance of additive processes in BOPP film production
during a specialized panel at the IranPlast exhibition, held at Tehran
International Fairgrounds. He noted that polyethylene-based BOPP films are
widely used in packaging, multi-layer pouches, agricultural applications, and
the food industry. Eslami emphasized that thickness and stretch levels,
measured in microns, directly influence product performance and applications.
“Sensitive packaging, such as labels or hygienic
wrappings, requires additives that ensure appropriate strength, transparency,
flexibility, chemical resistance, and printability. These characteristics make
polypropylene films indispensable in sectors like snack packaging, where
hygiene and durability are paramount,” Eslami said.
Technical expert Reyhaneh Aminian further
explained that additives in BOPP production are crucial in downstream
petrochemical applications. “Consistent quality grades are essential for
sensitive products. High-speed production amplifies the impact of any additive
deficiencies, leading to higher waste and reduced efficiency,” Aminian noted.
She elaborated on the function of additives in
enhancing product features such as weldability, transparency, adhesive
compatibility, and surface finish—including glossy, pearly, or matte
appearances. Aminian also highlighted the widespread use of “superslip”
additives in cigarette packaging, typically applied in outer layers at 0.7–3% micron
content. While these layers currently cannot be printed due to adhesive
properties, future technological advances may allow printability.
According to Aminian, over 200 additive grades
have been produced to meet diverse customer needs, with five widely recognized
grades, including ASPA2446 and ASPA2488, being commonly used. The ongoing
innovation in additive development is expected to support the continued growth
of Iran’s BOPP and downstream petrochemical industries.