Plastics News - Show Daily - October 22, 2022 - 15

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Plastics News, October 22, 2022 * 15
KHS technology enables smallsized
carbonated soft drink bottles
By Joseph Pryweller
Plastics News Staff
It's all about the fi zz when it
comes to opening a carbonated
soft drink.
Blow molding supplier KHS
GmbH has a solution to keep the
" fi zz " coming from small-sized
PET bottles in the CSD market.
The company has developed an
innovative barrier coating technology
and new neck design that
can help maintain the freshness of
a soft drink as long as four to fi ve
months after the drink is opened.
" With most PET bottles, there is
a loss of carbonation once a cap
is opened or the drink sits too
long, " said Bjorn von Lengerke,
head of PET sales for Dortmund,
Germany-based KHS. " You won't
hear the fi zz anymore when the
bottle is opened, and the drink
tastes fl at. "
The company needed to work
on a solution to the problem,
at the behest of large beverage
companies that include Coca-Cola
Inc. and others. Those companies
want to sell small soft drink
and juice bottles made from PET
in poorer or developing markets,
where larger bottles are not preferred
due to cost, transportation
and cultural issues. In countries
such as India, Indonesia and Bangladesh,
cans have maintained an
iron grip on those markets due to
freshness issues.
However, PET offers lightweighting
advantages and can
more easily be transported, as
well as offering some cost advantages
to soft drink bottlers.
Many bottlers have campaigned
for smaller-sized beverage alternatives,
sold in sizes of 12 ounces
or less, as a way to enhance margins
and sell more beverages, van
Lengerke said.
The PET bottles offer a transparent
container that brings more
shelf appeal to drinks in those
countries, even though sunlight
in the past has affected the taste
and color of the liquid. That was
the problem that had handcuffed
PET bottle suppliers such as KHS
in the past, van Lengerke said.
" We wanted to take this out of
cans, " he said. " But we had diffi -
culty doing that. "
In the past, smaller PET soft
drink bottles have given way on
airlines to metal cans, which better
retain carbonization months
after the cans are fi lled. That situation
also needed to be remedied,
he said.
Juices in small-sized bottles is
another need. But oxygen ingress
and the lack of a proper barrier
have also caused a PET bottle to
turn yellow and the liquid to lot
vitamin C shortly after shipping
or opening.
KHS introduced a solution at
K 2022 to solve this need and increase
the market for PET bottles
in the fi ght with cans for market
supremacy. The company has
developed a glass barrier coating
that covers the PET and can
be used on a complete fi lling line,
von Lengerke said. The coating
also can be added during pelletizing
early in the bottling process
and does not interfere with the
production process, he said.
As importantly, the glass coating
does not contaminate the PET
material and allows a bottle to be
recycled or for recycled PET to be
used, van Lengerke said.
" The [barrier] layers are so thin
that they are hardly noticeable, "
he said. " We tested this with bottle-to-bottle
recycling and found
no problems. "
KHS also developed a smaller
neck fi nish for the small, contoured
beverage bottles that provides
more fl exibility in bottle
sizes and can be used on bottles
smaller that 12 ounces, he said.
Now, the company is preparing
to have their new system in place
and hopes to enhance the use of
PET in beverages globally, van
Lengerke said.
The company continues to
expand its operations globally,
including a U.S. site in WaukeBjorn
Von Lengerke, head of PET sales for Dortmund, Germany-based
KHS. Plastics News photo by Joseph Pryweller
sha, Wis., that offers fi lling operations
and dedicated packaging
solutions. The company has fi ve
plants in Germany and operations
in Mexico, Brazil, China and India,
among other locations.
At K 2022, KHS also introduced
a PET bottle with a glued-in handle
for home care and food applications.
The handles are especially
effective for use with recycled
PET, offering a smaller contour
that uses less material than existing
handles. The adhesive-based
handles can be used in the stretch
blow molding process instead of
extrusion blow molding, a process
that requires less energy usage
and allows for use of PET instead
of other polyolefi n alternatives.
KHS GMBH
Hall 13,
Booth B38
Light switching to
lightweighting
Sustainable solutions to transform industries
and improve lives
From e-bikes to shoes, and robots to batteries, we enable
you to drive innovation and create the solutions you need
- whatever your challenge.
Join us at Hall 6, Stand C43 to find out more about how
our material science is being applied to the products we
all use everyday.
Hall 6 Stand C43
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Plastics News - Show Daily - October 22, 2022

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