By David R. Roisum, Ph.D., principal, Finishing Technologies, Inc. “If names are not correct, language will not be in accordance with the truth of things.” —Confucius Introduction We had a big problem in web handling. That was that some words, such as telescoping, had many aliases including scoping, coning, shooting and so on. Worse yet, the same word could be used … [Read more...] about Some thoughts on naming and classifying web-handling defects
Web Handling
Applying smart technology for splicing, roll-change productivity on coating and laminating lines
By R. Duane Smith, process mgr.-Web Handling and Specialty Winding, Davis-Standard LLC Introduction Consistent unwind splicing and winder transfers are paramount to high productivity on all web-substrate processing lines. This especially is true when manufacturing quality flexible-packaging materials on extrusion coating and lamination production lines. In addition, … [Read more...] about Applying smart technology for splicing, roll-change productivity on coating and laminating lines
Schlumpf joins Double E Group in name, solidifying long-standing partnership
Portland, ME-based Schlumpf, a provider of materials-handling solutions, will now operate under the Double E Group name, officially aligning with its parent company. For Schlumpf, long a member of the Double E family, this rebranding represents a natural evolution, reinforcing Double E Group’s strategic commitment to integrated operations and a strengthened market presence to … [Read more...] about Schlumpf joins Double E Group in name, solidifying long-standing partnership
Alignment for process owners: Part 3: How is alignment done?
By Joe Kotwis, P.Eng., co-founder, Webineering, LLC The job of a web-handling machine is relatively straightforward: Deliver the web from Point A to Point B at the specified quality, width and speed. Persistent web-equipment difficulties frequently center around issues with Rollers, Alignment and Tension (RAT). At this firm, we spend a lot of time preventing RAT infestations … [Read more...] about Alignment for process owners: Part 3: How is alignment done?
Researchers study quality assurance through thin-film-based measurement of web-tension distribution
For the production and processing of flexible plastic and fiber-based webs, a homogeneous web-tension distribution is crucial for quality. However, new low-complexity, natural fiber-based or recycled materials in particular exhibit more fluctuating properties and narrower process windows than established materials. Flatness deviations, wrinkles, inclusions or processing-induced … [Read more...] about Researchers study quality assurance through thin-film-based measurement of web-tension distribution