Research and Development has been an obvious catalyst for growth and since the
advent of PET stretch blowmoulding, the market place has benefited from a vast
array of enhancements and improvements. One development however, which has
proved highly elusive to even the most well resourced of industry giants, is a
PET bottle with an integrally moulded handle.
The plastics industry has long been searching for a way to integrate handles on
large PET plastic bottles. The myriad of Bail handles, strap handles and
attached handles in the market bear witness to the demand for a plastic bottle
with a handle to aid in ease of handling and regulation of pouring fluids.


PET remains the only comparable alternative to glass in the containment of shelf
life juice and carbonated beverages. PET is clearly the dominant material by
means of recycleability, clarity, barrier properties, strength and price. Until
now the technology has not existed to produce a PET bottle with an integrally
moulded handle using two stage high volume Injection/Stretch Blow Moulding
manufacturing processes.
B&R Industries has solved the problem and has developed and patented the
technology to manufacture a stretch blow moulded PET bottle with an integral
handle. In addition B&R have incorporated the technology within standard PET
injection/stretch blow moulding equipment and have demonstrated the successful
commercialization of the technology.
B&R has exclusive technical knowledge that will see the 'new generation' of PET
bottles catapult their way to market prominence. As packaging for a broad range
of liquid products, the centre of gravity, integral handle PET bottle will quite
simply be unrivalled.
For containers of around 2 litres in capacity and above, it is desirable that
the containers include a handle or convenient gripping means of some kind, both
for initial transport of the container from point of purchase to point of
consumption and also to aid in pouring during consumption of the contents of the
container. Until the advent of the new technology, handles have been attached to
PET containers in an entirely separate production step, most usually by the
addition of a PVC strap attached to the neck of the PET container. It is
inherently more cost effective to produce a handled container made entirely of
PET including the handle in one production process than to do so in a process
which requires the production and attachment of a handle in a series of separate
steps. Recyclability of the container after use also plays an important part.
The invention is simply about making the handling, storing, recycling, as well
as the pouring of a drink, a more manageable and convenient experience for
people. As well as the environmental considerations it will enable women and
young children in particular to exercise more control over the carrying and
pouring processes.
The aesthetic features of the PET bottle with a handle have been enhanced as a
result of the technology. It offers all product ranges currently packaged in
PET, the opportunity to enjoy the benefits of these enhancements and is an added
inducement for those products that have the potential to be packaged in PET, to
make the transition.
The core concept is the production of a clear plastic container made entirely
from PET material including an integral PET handle that on the final blown
bottle product will be positioned at a point that is centre of gravity. A
container such as this is manufactured in a two stage process.
The first stage comprises producing a 'preform' by injection moulding PET resin
to produce a test-tube shaped precursor complete with handle integrally
attached.
The second stage of the process comprises taking the preform after it has been
left for a suitable curing time, reheating it to a blow temperature and then
passing it through a specially enhanced stretch blow moulding machine which
forces the preform to conform to the desired shape of the bottle, still complete
with an integral PET handle.
We are undoubtedly at the leading edge of technology that is protected by
worldwide patents inclusive of design and method of manufacture.
As PET is a preferred material for packaging worldwide because of its
recyclability, the ability to recycle is much improved where the PET container
in question is made entirely from PET as there are then no contaminants in the
PET entering the recycling process as with a separately attached handle made
from a different polymer.
B&R have now commercialized the technology to produce an integral handle range
of PET bottles, something no one has been able to do. Even without the handle
PET leads the way in the packaging of beverages for a number of reasons such as:
- Low manufacturing costs
- Environmental considerations -PET is 100% recyclable whereas other products
are not, such as PVC. Those which are such as HDPE have limited recyclable
capacity.
- Excellent barrier properties.
- Improved clarity compared with PVC, much improved compared with HDPE which is
cloudy and opaque (ie milk bottles).
- PET does not contain the same potentially lethal properties that PVC has when
heated.
- Handle bottles are more manageable for people.
- The handle bottle has fast manufacturing rates.
- The price per unit of the handle bottle is price competitive with conventional
bottles therefore the market receives an added value product at a competitive
cost.
Products that can benefit from the B&R PET integrated handle Bottle:
- Long Life Juice
- Fresh Juice
- Water
- Cordial
- Carbonated Soft Drink
- Home Care Products
- Hazardous Goods
- Pharmaceutical Products
- Edible oils
- Sauces
- Milk
- 1.5 litre bottles
- 2 - 3 litre bottles
- 4 - 5 litre bottles