Download this free, 140-page Flexible Packaging Playbook jam-packed with strategies for success, best practices, and pitfalls to avoid.  Learn more »
Glenroy invites you to download this playbook.
Article |

Jar line is a royal flush (sidebar)

Shrink bander, jar labeler contribute to line speed, ease
FILED IN:  Machinery  > Labeling
Jar line is a royal flush (sidebar)Jar line is a royal flush (sidebar)

As part of the upgrade to Universal Foods' jar line the company sought to add a shrink bander that would apply and seal a clear tamper-evident shrink band over the metal screw cap.

Packaging engineer Bob LaJoice tells PW that Universal was close to buying a large shrink banding machine that cost in the neighborhood of $50. Then on the floor of a packaging trade show LaJoice saw a relatively small shrink band applicator from Marburg Industries (Vista CA).

At the booth says LaJoice "They demonstrated that this thing would run four hundred a minute and I thought that was fantastic." After checking out the equipment running in a real production situation at a nearby plant he specified the machine for the new yeast line. It cost about $20 far less than the initial machine.

"It's small has high-speed capability it's reliable and it was inexpensive. What more could you want?" asks LaJoice.

Related Sponsored Content

The applicator itself is about the size of a microwave oven placed on end. As jars are conveyed into it a piece of 2-mil polyvinyl chloride film is cut from a continuous tube of layflat shrink film opened and positioned around the torqued screw caps. The jars then move through a small heat tunnel also supplied by Marburg that's about the size of a toaster. Because the jars are exposed to the heat so briefly it minimizes the impact on shelf life according to LaJoice.

After sealing the jars enter a Label-Aire (Fullerton CA) wraparound labeler with an integrated date-code imprinter from Norwood Marking Systems (Downers Grove IL). The two together represent a significant improvement over the line's previous labeler which required a worker to code batches of labels in a separate off-line process. That method was fraught with waste as labels were skipped or were printed too light or heavy. "This [Norwood] machine prints the same date code in the same place every time at speeds to one hundred a minute" says LaJoice.


The labeler itself applies wraparound p-s labels without incident says LaJoice. It's a standard p-s labeler: Jars enter the labeler the label's leading edge is adhered and the jars then rotate against a fixed side pad that tamps down the label.

"It's reliable works at high speeds and does the coding. It's a good machine" concludes LaJoice.

44 Best Package Designs
Sign up to receive timely updates from our editors and download this e-book of our editors’ selections for most innovative package designs of the past year.


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