Expected Values of C, B, B/C Double wall Combined Board

May 22, 2012

Jim asks;

On the way home from the AICC meeting in Phoenix I read the latest issue of AICC BoxScore and your article on Expected Values of E Flute. Could you please send me an electronic copy or link to your articles, previously published in AICC Box Score, of Expected Values of C, B, B/C Double wall Combined Board?

Thank you for reading the most recent issue of BoxScore and especially my contribution for the association. The articles you requested can be found on our web site at www.aicc.box.org/boxscore. Open the electronic copies for May/June, July/August, and September/October 2009. You can print the pages of the articles you requested.
Also, here are links to the spreadsheets themselves for easier reading since they were reduced too much in the original article and are difficult to read. Thank you for allowing me to be of service. Contact me anytime!

Combined Board Attributes B Flute
Combined Board Attributes C Flute
Combined Board Attributes Doublewall

-Ralph

Posted in Containerboard, Testing and Specifications | Leave a Comment »

Doublewall Vs. ‘C’ Flute ECT Comparison

April 23, 2012

Erin asks:

We have a customer asking us the question below. It would be strictly for ECT strength and we are not sure how to quantify the data for them other than the ECT values. I believe they are looking for a percentage difference of how much stronger one is over the other. We are comparing an ECT 48 DW to 32C. The carton is an RSC, 12 1/16 x 10 5/8 x 3 9/16 inches.

While this construction is more like a tray than a RSC design, I have estimated the compression potentials for you given the two board combinations you presented. If this is an integral part of a display where product is stored and where torsion and twist are present, we will have to perform another analysis.

  • 32 C singlewall would have a targeted compression of 503# of top-to-bottom compression
  • 48 D/C doublewall would have a targeted compression of 997# of top-to-bottom compression

    • – Ralph

    Posted in Containerboard | 1 Comment »

    2012 Summer Corrugated Board Technical Committee (Corbotech) Meeting

    April 16, 2012

    Corbotech is a very valuable resource for converters and corrugators and one I have participated in since 1987. The Corrugated Board Technical Committee meets each summer at a mill, box plant location or sometimes a supplier location, to discuss issues that confront us all. The summer meeting is free and a great relaxed climate to connect with your network of peers.

    The 2012 Summer Corbotec meeting will be held in Toronto, Canada on Wednesday, June 20th through Friday, June 22nd. Atlantic Packaging will host the meeting at their New Forest Paper Mill, 333 Progress Avenue, Scarborough, Ontario. More information on the Technical presentations and plant tours will be available soon. For more information contact me at ryoung@aiccbox.org.

    Posted in Containerboard, Corrugating | Leave a Comment »

    Changing Crease on HAZMAT Certified Insert

    April 16, 2012

    Kevin asks:

    Can we change the creases on a corrugated insert to a perf profile without having to re-certify the entire corrugated package? The insert fits inside a corrugated RSC and both are HAZMAT certified.

    Well Kevin that depends on a couple things. Is the insert load bearing so that it becomes an integral part of the performance of the package? Were the original ISTA tests done with the insert? You say that both are certified, so I assume that answer to be yes.

    If you can answer yes to either one, or both, of these questions, then the answer is probably no because you are deviating from the original tested design. Changing the design by changing from a regular score to a perf score would probably require re-testing and re-certification of the design.

    However, if the insert is just a separator and was not part of the original testing and certification, then you would probably be okay to make the change from a regular score to a perf score.

    Readers, please share your knowledge and information on this topic by posting a comment here.

    – Ralph

    Posted in Finishing/Converting, Testing and Specifications | Leave a Comment »

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