Winding, Unwinding, Roll Defects
Center or surface winding
Timothy J Walker -
What is the best way to drive a winding roll? You have three choices: from the surface, from the center, or both. ...
Center or surface winding
Timothy J Walker -
What is the best way to drive a winding roll? You have three choices: from the surface, from the center, or both. ...
Internal roll pressure
Timothy J Walker -
Too much pressure inside a roll means more wound roll problems: Adhesive layers ooze, nonwoven and other crush-sensitive products don’t bounce back, photographic coatings fog, ...
Unwinding: Part two
Timothy J Walker -
We are halfway through our roll-to-roll relay race of the unwinding process. Our rolls are loaded, spliced, and ready to run. To complete the unwinding ...
Unwinding: Part one
Timothy J Walker -
Converting productivity is a race to see how much material we can get through our process. Instead of a marathon, with one runner going the ...
Is your product cinching?
Timothy J Walker -
The expression “it's a cinch” usually means something is easy, as easy as tightening a belt. However, as we learned last month, cinching is not ...
Cinching, what?
Timothy J Walker -
In today's economic climate, belt tightening sounds like a fiscally wise move. Belt tightening, also known as cinching, is good for budgets, trash bags, and ...
Pyrimids and Wound Rolls
Timothy J Walker -
What comes to mind when you think about the pyramids? First, the pyramids have survived the test of time. Second, they have a distinct and ...
How can I troubleshoot and treat winding defects?
Dr. David Roisum -
The most useful classification of wound roll defects is by tension. All defects fall into one of the following categories: tight roll, loose roll, taper and other. Examples of tight roll defects would be blocking or corrugations....
Can I hide defects by winding loose?
Dr. David Roisum -
It is well known that winding looser (soft) will reduce the frequency and severity of some types of wound roll defects. Examples would be ridges, webs stretched into bagginess over ridges and corrugations....
How does gage profile affect winding?
Dr. David Roisum -
Gage uniformity has a profound affect on wound roll quality. In fact, gage variation can sometimes be so overwhelming that nothing can be done at the winder to effectively deal with it. Gage uniformity has a profound affect on wound roll quality. In fact, gage variation can sometimes be so overwhelming that nothing can be done at the winder to effectively deal with it. ...
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on
21 August, 2010 08:10:40
thank you for that interesting post
Pdf Se
on
20 August, 2010 07:05:27
This is a great post. I'll try to make the calculations. I'm very much intrigued about the results I'll get. Thanks for so many ways ...
Kalo Paidi
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09 August, 2010 12:46:40
Thanks...nice article and great share...
Lucy Lew
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08 August, 2010 03:14:55
Your blog is really excellent. It inspires the readers who have that great desire to lead a better and happier life. Thanks for sharing this ...
Rain Sanders
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06 July, 2010 12:43:20
This is a very interesting post. Undoubtedly, you have talent in finding analogy. You did it very masterfully!