market report | Single-serve capsules Right: The Nestlé Dolce
Gusto system is expected to
grow strongly over the next few years,
which will draw the attention of compatible capsule
producers
This is significant since, due to the small size of the package, barrier requirements are challenging. Capsule capacities are in the range of 12-55cm3
and for a small
design, such as a Nespresso style, the ratio of package volume to surface area is around 0.4 (compared, for example, to 1.4 for a 0.5 litre PET bottle and 2.2 for a 2 litre bottle). Barrier performance of the capsule material must, therefore, be more than four times better to match the permeation performance of a 2 litre PET bottle.
Another significant finding was that the way in which
contents are a food product, protection is a primary factor and this has to be achieved before consideration of any sustainability benefits or cost. PTI’s research found that that the Barrier Improve-
ment Factor (BIF) varied by as much as 380 times across the 18 capsule samples tested (selected to represent the main commercially available systems).
the capsule’s individual structural components are assembled to create the final container also impacts barrier characteristics. PTI’s research details oxygen and water vapour permeation, overall dimensions, mini- mum wall thickness, 3D scans that determine active barrier surface and manufacturing process, layer- structure analysis and summary mapping for each coffee capsule type.
About the authors: Martyna Fong is Packaging Consultant at AMI Consult- ing. Thierry Fabozzi is Managing Director of PTI Europe, a subsidiary of Plastic Technologies Inc.
More information: Published in August, Single Serve Beverage Capsules – Global Market Overview is produced by AMI Consulting in cooperation with Plastic Technologies Inc. It is an in-depth study of the global capsule market and aims to help industry participants and investors to anticipate market developments, direct R&D investment, and formulate strategies to manage potential opportunities and threats. For more information, contact Martyna Fong Tel: +44 (0)117 924 9442; Email:
mf@amiplastics.com Plastic Technologies Inc (PTI) is a worldwide source for preform and package design, package development, rapid prototyping,
pre-production prototyping, and material evaluation engineering for the plastic packaging industry. For more information about its activities, contact Ron Puvak. Tel: +1 (419) 725-5613; Email:
r.puvak@plastictechnologies.com
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