Blogs
Web Handling & Converting Blog: High Speed Cameras 1
I had first used high-speed cameras for diagnosing web breaks almost 30 years ago. They are also invaluable, arguably essential, to diagnose other web machine difficulties such as missed splices/turnups and trim problems. The first problem I used them on...
Vacuum Web Coating: Winding, edge guidance and slitting.
I have been involved in the purchase of a number of web vacuum roll coaters over the last twenty years and in all that time have never been offered a web guidance system, until now. This has caused me to...
Web Handling & Converting Blog: Operator Effectiveness Metric
How do you know if one operator is not doing as well as others? You may have some well-founded subjective intuition on the matter, but we would also like to have objective data. Comparing one shift to another may not...
Web Handling & Converting Blog: Razor Slitting Debris
by Tim Walker What do you know about particle generation and distribution during razor slitting PET? Could I mount a video camera on a slitter to see the dust generated at slitting? Here are some general thoughts I have on...
Web Handling & Converting Blog: Slitter Dust Cleaning
How can I remove slitter dust from my web? Are tacky rollers or vacuum systems better? My mom and industrial engineering teachings are in complete agreement on a couple of points. (1) It is best not to make messes in...
Web Handling & Converting Blog: Not Slitting/Cutting Well?
Our slitter cut quality is not good. What can we do? What you must do first is to determine if the quality is good immediately after a blade change or not. If cut quality is good for even a few...
Web Handling & Converting Blog: Tower of Babel
We need a dictionary, or at least a thesaurus. We have bowed rollers, curved axis rollers and, heaven forbid, banana rolls; different names for the same component. We have knurling wheels, embossing wheels, crimpers and ply bonders; different names for...
Web Handling & Converting Blog: Name That Defect 06 - Slitter Rings
No one got this one. I am surprised because the defect is so common, almost ubiquitous on paper rolls. The name of this defect is slitter rings. It may show up on the side of wound rolls a) if the...
Page:
