New Advanced Borseal™ products give extra benefits in packaging

New, Advanced Borseal™ terpolymers have been launched by Borealis that provide solutions to previously unsatisfied needs in biaxially oriented polypropylene (BOPP). The new grades significantly reduce fumes and processing downtime, and provide higher gloss and improved transparency compared to previous grades.

The new Advanced Borseal grades, fine-tuned to the needs of film producers, include:

• Borseal TD210BF, TD211BF, TD220BF, all of which contain antiblocking agents

• Borseal TD215BF, with slip and antiblocking agents

• Borseal TD218BF, the neat version without either slip or antiblocking agents

All current Borseal grades will be upgraded and replaced by their Advanced Borseal equivalent.

“These Advanced Borseal grades will enable film producers to differentiate film quality and increase line operability,” says Harald Hammer, Vice President, Borealis Film. “They offer optimum benefits in terms both of performance and productivity and contribute an important technical improvement to BOPP film production.”

Cutting downtime

A major cause of downtime in long-run BOPP production is the build-up of deposits on the die and air knife. With sufficient build-up, the flat thickness profile deteriorates, and the line has to be stopped; the film needs to be cut back to the die and the die and air knife cleaned. The new, Advanced Borseal grades were developed to prevent this downtime through improved melt stabilisation. In addition, with reduced fumes, volatiles, and deposits, die lifetime is increased.

High gloss and low haze

The new Advanced Borseal grades satisfy demands for high clarity and gloss in packaging. The result of this improvement is that the new grades offer lower haze and the highest gloss values, making them ideal when BOPP film must enhance package aesthetics and brand differentiation with high clarity and a shiny appearance.

The Advanced Borseal terpolymer family provides a range of superior solutions that comprehensively address customers’ needs. As a result of highly effective melt stabilisation, less low molecular weight and amorphous polymer fractions are formed during film production.

This gives a film with enhanced ‘surface purity’, which combined with carefully selected polypropylene-compatible additives, provides a material that demonstrates less blooming and more stable surface properties in the final film.