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12
T
i
films replace polyester
for powdered juices and soups in Latin
America
One of the primary functions of a flexible packaging structure is to provide low
permeability to gases, vapors, oxygen, to light and to flavorings. The foil was a
widely accepted barrier substrate, however, it is costly and it is difficult to print or
laminatewithout tearing or creasing it. In addition, there are fewsupplierswith long
lead times. With the metallized PET, there is a similar situation with its conversion
process, mainly when it is laminated to other stiff substrates such as other clear
PET. The stiffness of the PET itself makes adhesive filmapplications and wetability
very difficult, with the consequent reduction
of the line speed, and deterioration of the final
lamination appearance.
The Tagheef Industries high barrier metallized
films (MPF, MXT, and MVT), and transparent
films (UHX, HXB, and HBTX), are a viable
alternative in terms of performance and cost
to the substrates mentioned. As a foil and met
PETreplacementseveral applicationshavebeen
developed in Latam (e.g., for Nestle Mahler
soups the original structure was clear-PET / foil
/ PE and now it is clear-PET / 55MPF / PE).
The converter confirms the easy machinability
and Nestle confirms good performance, and it
meets the shelf life required.
Other similar applications already developed
are sachets for ketchup, instant coffee,
powdered milk and shampoo.
In all these applications the high barrier met
BoPP gives converters and end-users a real
performance option to foil and met PET,
with good availability and cost advantanges.
Now, if we need clear high barrier films, T
i
has released a new transparent high barrier film, UHX, at 22 mic. , sealable
on one side, with a WVTR of 2.8 g/m2/24 hr and an OTR of 2.6 cc/m2/24
hr. UHX provides aroma and grease barrier when used as a reverse printed
outer web, but it could be used as a sealable inside web in lamination too.
The UHX is having an excellent performance in Guadalajara Mexico, which one
customer is using this for a “Nachos Chips” package. The high barrier of this
special white film permits these products to be exported to the USA and some
countries of Asia.
/ Latin America