Page 39 - Plastics News January 2018

FeAtures

of material for the stability needed, which increases the chain. That means improved resistance to base roll-out,
weight of the package, often “unroll” under internal bottle bursting, and deformation, according to Sidel. The
pressure, and are more difficult to manufacture. Starlite Tropical base has passed testing at more than 72
hr at 38 C (100 F) and 50% humidity. The bottles also resist
As can be easily imagined, due to the abundance of
different bases that by now exist, it’s not been easy to extreme cold, Sidel says. Starlite Tropical base molds
keep abreast of all the variants involved. boast enhanced venting and optimized cooling. The base
is already in production in the Far East.
Bases – often overlooked, but the section of the bottle
that has to incorporate the most know-how. The case in Also new is the Starlite Nitro base for still beverages
the point is Sidel that has enlarged its range of Starlite in ultra-lightweight PET bottles of 0. 2 to 2 L that use
PET bottle base designs for still and carbonated beverages nitrogen gas dosing to provide rigidity. For example, a 0.5
to include carbonated soft drinks (CSD) bottles produced L bottle with this base weighing 1.8 g can resist an internal
and distributed in extreme environmental conditions, as pressure of up to 1 bar, depending on the preform and
well as still beverages using nitrogen dosing. The Starlite bottle design and grade of PET resin used. Additionally,
family of non-petaloid bases, first introduced in 2013, bottles with the new base reportedly are more resistant
is designed to provide improved bottle stability through to extreme temperatures—e.g., in storage at up to 50 C
enhanced standing surface, plus greater lightweighting (122 F), bottles can last up to 25 days or more without
potential. The new base molds can be retrofitted to deformation. They also can demonstrate 50% less base
existing Sidel bottle molds and are said to work with all rollout under frozen conditions. What’s more, the new
Sidel stretch-blow machines. base is said to be easier to blow than existing bases and
to provide a wider process window for stretch-blowing.
New Sidel Starlite Tropical is a base designed for Air pressure can be reduced by up to 25%, saving energy.
production and distribution conditions of high heat and A 0.5 or 1 L bottle requires only 18-20 bars (261-290 psi),
humidity. It is available for CSD bottles from 0.25 to 3 vs. 25 bars (363 psi) for typical bases.
L and all standard levels of carbonation. It yields a PET
bottle with improved resistance to stress cracking and Thus, by marrying outstanding design to technical
creep, as well as better stability throughout the supply expertise in an aesthetically appealing form, one is able
to offer ideal solutions.

With Best Compliments

MEGAFLEX PLASTICS LIMITED

Manufacturer of PP Leno Bag

Polypark, Plot No.: PPD-3, Vill.: Sandhipur,

P.O.: Dist.: Howrah - 711 302, West Bengal,

Mobile: 98742 33333,

Website: megaflex.in, Email: mkg@megaflex.in

39 Januar y 2018 Plastics News