Download this free, 130-page Package Development Playbook jam-packed with strategies for success, best practices, and pitfalls to avoid.  Learn more »»
Article |

Portola Packaging, Inc: Plug-seal closure for hot-fill, aseptic beverage packaging

The GreenLyte one-piece closure line from Portola Packaging is a new line of plug-seal, high-density polyethylene (HDPE) 38 mm closures for single and multiserve, hot-fill, and aseptic beverage packaging applications.
GreenLyte closures are a cost-effective, alternative to traditional two-piece (closure plus liner) polypropylene (PP) types typically used for juices, ready-to-drink teas, isotonics, enhanced waters, low-acid nutraceuticals, and high-end, aseptic-filled beverage products.

The one-piece plug design reduces costs for brand owners due to shell lightweighting, liner elimination, and material choice. Because the GreenLyte line is made from high-density polyethylene, resin is less expensive than pricing volatility-prone polypropylene, which is the material from which most two-piece closures are made. 

GreenLyte’s plug construction eliminates the need for a liner, eliminating the difficulty some consumers have opening two-piece closures, which do use a liner that can make opening difficult. 

GreenLyte closures also offer multiple production line efficiencies. Unlike two-piece closures, which usually require that the TPE liner be steamed in order to achieve proper application, this step is not necessary with the linerless GreenLyte line. Additionally, the seal design and low coefficient of friction facilitates application over a wide range of capper settings.


ADVERTISEMENT
In addition to the cost, production, and performance benefits, the GreenLyte launch provides a conversion opportunity for those hot-fill beverage product manufacturers still using 43mm finishes. Instead of converting from a 43mm two-piece to a traditional 38 mm two-piece closure,  producers can now go straight into a 38mm one-piece plug closure improving their cost and environmental profile.

 

E-BOOK SPECIAL REPORT
42 Best Package Designs: 2014 edition
Sign up to receive timely updates from our editors and download this e-book consisting of our editors' picks of most notable package designs. Updated for 2014!
x

 

Newsletters
Don’t miss intelligence crucial to your job and business!
Click on any newsletter to view a sample. Enter your email address below to sign up!
GENERAL INTEREST

New Issue Alert

Packaging World Magazine

eClip

Breaking packaging news

Packaging Insights

Pertinent packaging issues

PACKAGE DESIGN/
DEVELOPMENT

Greener Package

Sustainable packaging

Shelf Impact

Package design strategies

Each newsletter ranges in frequency from once per month to a few times per month at most.