TECHNOLOGY | MATERIALS MDO FILM HDPE grade for mono-material film
ExxonMobil has developed an HDPE grade for machine direction oriented (MDO) PE film applications. The grade, HD7165L, can help
converters create mono-material laminates, which can be easier to mechanically recycle. Offering good optical and mechanical properties, the material can be used to make mono-material packaging for products such as nuts, crackers and potato chips.
BOPP FILM
Thinner BOPP
for IML Innovia Films has extended its range of BOPP IML films, with a thinner version. Rayoform EUP50 – a high-yield, high-opacity, matt in-mould label (IML) film – is 50 microns thick, with a density of 0.55 g/ cm3
. It adds to the earlier
EUP60 grade. The material is in line with Design for Recycling recommendations from RecyClass, that say PP IML technology is fully compatible with coloured PP recycling.
“EUP50 allows you to downgauge significantly where a thicker film is not needed, but also has the added benefit of reduc- ing distortion in thin wall containers and lids after moulding,” said Alasdair McEwen, product manager for labels and graphics at Innovia Films. �
https://www.innoviafilms.com
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“The development of HD7165L has been driven by market demand for all-PE packaging – which in turn has created a need for print webs made of blown MDO-PE films,” said Nilesh Savargaonkar principal customer and application development engineer at ExxonMobil. The grade can help converters
produce blown MDO-PE films with 60-70% HDPE, for enhanced stiffness and high heat resistance.
PVDC FILM Coating for blister packaging
Solvay has introduced Diofan Ultra736, a high- barrier PVDC coating for pharmaceutical blister films. The coating allows an
ultra-high water vapour barrier that allows carbon footprint reduction, it says. The coating was
engineered to maximise the water vapour barrier without sacrificing its oxygen barrier, chemical resistance or transparency. It has good thermoform- ability, enabling smaller pack sizes with higher pill density compared with other coating solutions,
ADDITIVES UV barrier for food packaging
Tosaf has developed a film additive that protects food from UV degradiation. UV9389PE EU offers a high blocking effect against UV in the 200- 380nm wavelength range, even at low thickness. This protects foods from
FILM & SHEET EXTRUSION | November 2023
discolouration, and loss of vitamins and flavours – thus helping to prevent food wastage due to premature spoilage. The optical properties – especially transparency – of films using UV9389PE EU are almost fully retained,
says Tosaf. Further advan- tages are the high efficiency – even at low dosages – and the minimal influences on behaviour during produc- tion and further processing of the films, such as printing and lamination. �
www.tosaf.com
www.filmandsheet.com
MDO stretch ratios as high as 7:1 with very high stiffness can be achieved. Haze is less than 10% and gloss is higher than 60%. Used as a print web of a PE-PE laminate, it offers high heat resistance and stiffness – for a lack of extensibility.
In blown MDO-PE film applications,
it offers high, uniform orientation, gauge stability, and low gels for easy processability, said the company. �
www.exxonmobilchemical.com
according to Solvay. “This new coating can help packaging film manufacturers achieve superior barrier properties with thinner structures, leading to a significant
carbon footprint reduction of the blister film,” said Federico Baruffi, global marketing manager for packaging at Solvay Specialty Polymers. �
www.solvay.com
IMAGE: SOLVAY
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