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The Official
Technical Magazine
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Web Handling & Converting

Blogmaster: Dr. David Roisum

The Cost of Confusion
Everyone is sensitive to the cost of equipment, waste, delay and so on.  You can put numbers (dollars) on each with little difficulty.  Because these costs are easy to get, they are almost always over-emphasized relative to other less tangible but often no less costly situations.  How...

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Posted in: Problem Solving
Nips - The Gold-Plated Knob
I have long maintained that the nip is one of the most important knobs in web-handling.  Here is why. Web201.29f Nips – The Gold Plated Knob ***201.29f – Nips – The Gold Plated Knob 04 Slides Duration 02.17 v 14...

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Of course not.  If you always had this; you would be out of business.  If you never had this; we wouldn’t be talking about this.  Therefore, you sometimes have this.  So what?  Trying to predict when a defect will show on a roll is like trying to predict the time, loca...

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Posted in: Problem Solving
Do you want to tie the two ends of a nip together or do you want to be able to adjust the ends independently?  How would you accomplish either once you have decided? Web201.29e Timing the Ends Together ***201.29e – Nips –...

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"Nothing is More Dangerous ...
than an idea, when it's the only one we have.”  Emile Chartier’s insight into our tendency to latch onto ideas is still spot on.  This comes up in problem solving all the time when one tries to explain the performance difference between Machine A and Machine B, or Web A and Web...

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Posted in: Problem Solving
Here is a summary clip on some of the most neglected concerns of this most neglected (but most important) knob in web-handling. Web201.29d Nip Neglect ***201.29d – Nip Load Neglect 07 Slides Duration 03.18 v 14.03.12 201.29d...

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Mark you calendar for the biennial pilgrimage to the Mecca of web-handling on June 8 – 10 in Stillwater Oklahoma.  The Web Handling Research Center will host its 13th international IWEB symposium on topics such as guiding, tension control, winding, wrinkling and related topics.  Here...

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If you are reading this you might assume I made it back, but that may not be the case since I write these blog posts weeks and sometimes even months in advance.  However, presuming it is true, let me know what you want to hear about.  I get a lot of my inspiration from the questions I get.
Off to Iceland
My family is off to Iceland for extreme adventure on tours guided by Extreme Iceland.  If I remember correctly I think New Years Eve will be celebrated in a lava tube or on a glacier.  Talk to you next year, I hope.
In the last clip we talked friction, in this one we talk calibration.  A topic most neglected, almost entirely neglected in our industry. Web201.29c Nips – Gain Calibration ***201.29c – Nips – Gain Calibration 0...

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Dr. David Roisum

Dr. Roisum is a well-known authority in the area of web handling and converting. He has authored seven books, including Winding, Rollers and Web-Handling and has coauthored or edited several others. He was a technical editor for Converting Magazine with a monthly column entitled "Web Works." An accomplished professional speaker and instructor, Roisum has been praised for his skill at translating highly technical information into a common sense practical reference. Dave has been honored by TAPPI with their Finishing & Converting Division Award, Thomas W. Busch Prize and Finest Faculty awards and is a TAPPI Fellow. Dave received his Ph.D. from the Web Handling Research Center where he later became an Industrial Advisory Board member.

Dave has worked for the Beloit Corporation as a designer of winding machinery and later as a manager of research, and for Kimberly-Clark as a converting expert serving all business units. He is now a principal of Finishing Technologies Inc., providing consulting services to more than 300 clients who convert or manufacture: paper, film, foil, nonwovens, textiles and many other materials. He has accumulated much practical experience working in nearly 1,000 plants over the course of more than three decades.

Converting School

Dr. David Roisum's
Upcoming Classes
May 11 - 12, 2015 - Charlotte, NC
CONNECT USA - Web Handling and Converting
May 11 - 12, 2015 - Charlotte, NC
CONNECT USA - Web Slitting Technology
May 14 - 15, 2015 - Charlotte, NC
CONNECT USA - Winding: Machines, Mechanics and Measurements

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