By Neal Michal, principal, Converting Expert LLC This last installment will present tension dynamics obtained from a representative zero-speed splice event. Recall that the splice takes place while the downstream process runs at full speed. The tension dynamics are repeatable and will be described in phases. A procedure to set up an unwind will be explained. Seven additional … [Read more...] about Improve a zero-speed splice unwind process by learning to reduce tension disturbances
2023 Quarter 4
Digital twins: Optimizing machine & material behavior with multiphysics simulation
By Jerome Flender, Ph.D., solution mgr.-multiphysics simulation, Siemens Multiphysics simulation of continuous web-handling in converting machines enables engineers to analyze the web-tension behavior of different materials on the kinematic structure of the machine. By avoiding space-intensive prototypes, this approach saves cost, time and wasted-material outputs. This … [Read more...] about Digital twins: Optimizing machine & material behavior with multiphysics simulation
Using excimer technology as an alternative surface treatment for highly sensitive, costly substrates
By Chris Davis, head of sales for Web & Industrial Systems, IST America This article will detail an alternative method of modifying (activating the) surface energy of materials; in particular, highly sensitive (and costly) substrates. Materials such as functional films, wafer materials, thin and heat-sensitive films all require full consideration when using traditional … [Read more...] about Using excimer technology as an alternative surface treatment for highly sensitive, costly substrates
How to achieve tight toleranceswith the wrap shear-slitting process
By John Marold, applications engineer & slitting specialist, Parkinson Technologies, Inc. Introduction In the world of slitter/rewinders, achieving a tight slit-width tolerance is essential to the operating process for many applications. To ensure such a tight tolerance is achievable, proper alignment and minimal movement leading up to the slitting of the final … [Read more...] about How to achieve tight toleranceswith the wrap shear-slitting process
Ways to improve slitter/rewinder efficiency to better optimize throughoutput, production cycles
By Michael Pappas, president, Catbridge Machinery Many converters seek to optimize their converting departments by improving slitter/rewinder efficiency. This requires understanding the causes of downtime as well as understanding how to keep machines running at the optimum speed for specific applications. Through an in-depth analysis of job and production data, converters … [Read more...] about Ways to improve slitter/rewinder efficiency to better optimize throughoutput, production cycles