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The Official
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Web Handling & Converting

Blogmaster: Dr. David Roisum

Fix-it and Maintenance
Near the top of most any operator’s list of complaints is that their machines are not well-maintained.  Of course, the reality of web-handling machine TLC (Tender Loving Care) varies considerably.  It might tend to trend with the age of the equipment though there are exceptions such ...

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Fast, free and easy.  All you need is a computer, tablet or smart phone and an internet connection.  Find out about nearly anything written on web-handling with the Roisum Library by AbbottApp.  This ‘card catalogue’ of nearly 4,000 articles, books, columns, papers and oth...

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Posted in: Problem Solving
We have all struggled with ‘Fix-it but don’t change anything’ mandates from above.  No way to win here when management is petrified of their own products, processes and customers.  There is an even more common debilitation and that is a fix-it focus.  Of course, ther...

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The Roisum Library
In the last clip we lamented at the near uselessness of Google or other search engine for many web-handling and web processes needs.  We gave the example of trying to learn how to treat wrinkles by typing it into the search engine and getting offers for Botox treatments on the first umpteen pag...

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Root Cause versus Outcome
I find the word ‘root cause’ to be limiting for many reasons.  First and foremost, there may not be a single root cause depending on how you define a problem.  Wrinkling on your web line may have several different sources, each with distinctly different mechanics.  All the...

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Web Handling Literature Searches
Ever try to search the web, for ‘web handling.’  How about ‘coating’, ‘winding’, ‘tension’ and so on?  Ever try to search about ‘wrinkles’?  The first ten pages are mostly links to Botox treatments.  The VLOG link and sc...

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Wrinkles and path control problems can exist on the same machine, but have different causes, especially if they occur on different rollers.  On the other hand, the underlying deficiency that causes path control problems might also be the same one that causes wrinkles.  Roller misalignment ...

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We complete our current tour of two-drum winders with an overview of the exceptional drive challenges and how the paper industry has more than met them in most cases.  Since this clip was made, both I and Clarence Klassen have written papers on helper drives (such as guide, bowed roller and rid...

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Anniversary Bonus Offering
We are coming up on the first anniversary of my vlog postings on AIMCAL.  We have also just passed 5,000 views on this Web201 vlog.  (Web101 is my trademarked shortcourse material and this blog, being much older, has as many hits in a month).  As a ‘reward’ for your suppor...

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Afraid of Defects
On several occasions I have blogged about being afraid (of customers on 7/27/2009 and then again on10/16/2012 and of knobs just last week 9/11/2014).  This topic, of being afraid, deserves much more treatment because it is one of the biggest handicaps to improvement.  Just last week I ran ...

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Posted in: Problem Solving


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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
Nov 04 - 05, 2014 - Charlotte, NC
Web Handling and Converting
Nov 06 - 07, 2014 - Charlotte, NC
Winding: Machines, Mechanics and Measurements

View the entire AIMCAL Converting School class schedule »

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