Converting Quarterly title
The Official
Technical Magazine
small AIMCAL logo

Web Handling & Converting

Blogmaster: Dr. David Roisum

Winding is easily the most complicated of the web-handling sciences.  Not surprisingly, it is also the subject of many fallacies. Web201.34d – Mythbusting In Web Handling – Winding Fallacies ***201.34d – Mythbusting...

[Read the rest of this article...]

Posted in: Winding
Defect samples are some of the most valuable product you can make (because they can tell you what you need to improve).  Yet, samples are handled as if they were, defective; trashed as it were.  Whether you are looking for coating defects, wrinkles, or your own unique bugger, you don&rsquo...

[Read the rest of this article...]

Web Handling Myths – Tension Fallacies
Tension is the most common web handling machine control.  Not surprisingly, it is also the subject of many fallacies. Web201.34c – Mythbusting In Web Handling – Tension Fallacies ***201.34c – Mythbusting in Web Hand...

[Read the rest of this article...]

Wound Roll Diameter Measurement
I need an accurate and reliable measure of roll diameter to use for our turret.  As we learned in module 24b of my two day winding course, roll diameter is used for a variety of must-have functions including safety shutdown, auto wind to diameter, auto-splice, taper, inertia comp and so ...

[Read the rest of this article...]

Rollers are the most common of web handling elements.  Not surprisingly, they are also the subject of many fallacies. Web201.34b – Mythbusting In Web Handling – Roller Fallacies ***201.34b – Mythbusting in Web Handl...

[Read the rest of this article...]

Posted in: Design, Spreading
Aside from increased wear and the possibility of noise, stink and fires that is.  There are many rewinders (and other web machines) with V-belt or flat belt drives.  Unfortunately, these belts are not precision devices and thus should not be used to ‘gear’ two rollers together ...

[Read the rest of this article...]

“It ain’t so much the things we don’t know that gets us into trouble.  It’s the things we know that just ain’t so.” - Artemus Ward.  Welcome to a new series of clips where we bust common web-handling myths. Web201.34a – Mythbusting In Web Ha...

[Read the rest of this article...]

Posted in: Problem Solving
We busted the seams of our classroom for my web schools last month.  Because of that we are offering another set in Chicago this fall.  Don’t miss it. Information for both my Web and Winding schools, September 21-24, can be found on AIMCAL’s Converting School website pag...

[Read the rest of this article...]

Every mechanical engineer learned that the speed of a sprocket oscillates as chain links go in and out of tooth.  Probably not the end of the world for electric drives, but we will let the EE’s speak for themselves.  What is more important in regard to web machines was never taught i...

[Read the rest of this article...]

For those of you who think that an hour in the library is better than a month in your plant (reinventing the wheel), I offer even more resources in this last clip of a series. Web201.33f – Other Web-Handling Books ***201.33f &ndash...

[Read the rest of this article...]

Posted in: Books


David Roisum photo

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
Sep 21 - 22, 2015 - Chicago, IL
Web Handling and Converting
Sep 23 - 24, 2015 - Chicago, IL
Winding: Machines, Mechanics and Measurements

View the entire AIMCAL Converting School class schedule »

The world's web process community.
Join. Participate. Succeed.

USA Office

201 Springs Street
Fort Mill, SC, 29715
Phone: 803-948-9470
Fax: 803-948-9471

Europe Office

PO Box 69533
1060 CA Amsterdam
The Netherlands
Phone: 0031 (0)20 8208635
Fax: 0031 (0)20 8208634

facebook linklinkedin linkyoutube linktwitter linkinstagran