Web handling is the manufacturing process technology used to transport continuous, thin sheets of materials like films, foils, and fabrics from into finished products. Web Converting uses transformational processes such as coating, lamination, slitting, and die-cutting to convert webs into finished products.
Experience
We have more than 35 years of experience with web handling and converting applications, designing numerous web handling and converting processes and troubleshooting common issues in winding, wrinkling, guiding (steering/tracking), and machine direction registration. Our knowledge of web handling fundamentals and first principles models enable web transport systems to be designed for high reliability and product quality and existing processes to be improved. We have converting experience with tissue paper, plastic and elastic films, nonwovens, and foams.
Videos
Web Handling Troubleshooting Using Maplesim Web Handling Library
Key Steps to Manage Web Handling Tensioning Using MapleSim
Technical Papers
- Wrinkling mechanisms of webs with spatially varying material properties, J. Carrle, S. Lange, R. Hamm, S. Ba, 2017 Proceedings of the Fourteenth International Conference on Web Handling, Oklahoma State University
- Impacts of a 90 degree twist on lateral web dynamics, J. Carrle, S. Lange, S. Ba, 2015 Proceedings of the Thirteenth International Conference on Web Handling, Oklahoma State University
- Lateral dynamics simulation of webs having cross-machine direction variation , S. Lange, M. Looney, J. Carrle, 2013 Proceedings of the Twelfth International Conference on Web Handling, Oklahoma State University
- Cluster-based data filtering for manufacturing big data systems, Yifu Li, Xinwei Deng, Shan Ba, William R. Myers, William A. Brenneman, Steve J. Lange, Ron Zink, Ran Jin, Journal of Quality Technology, March 5, 2021
- Deep multistage multi-task learning for quality prediction of multistage manufacturing systems, Hao Yan, Nurettin Drukhan Sergin, William A. Brenneman, Stephen Joseph Lange, Shan Ba, Journal of Quality Technology, April 20, 2021
- Preparing for a Converting Process Data Project, S. J. Lange, Converting Quarterly, Quarter 1 2021, pp. 90-94.
- Converting Process Data Wrangling, S. J. Lange, Converting Quarterly, Quarter 2 2021, pp. 80-85.
- Converting Process Data Analytics, S. J. Lange, Converting Quarterly, Quarter 3 2021, pp. 82-88.
- Web Handling: Role of new system level simulation in solving difficult web-handling problems, Orang Vahid and Steve Lange, Converting Quarterly, Quarter 2, Vol. 13, No. 2, pp. 51-59
Patents
- Computer based models for webs of materials, U.S. Patent No. 8,700,364, The Procter & Gamble Company, Inventors: M. Looney, L. Li, M. Whaley, S. Lange
- Method for modeling a manufacturing process for a product, U.S. Patent No. 10,482,202, The Procter & Gamble Company, Inventors: S. Lange. J. McKibben, J. Carrle, R. Hamm
- Computer based methods for simulating rotational drag force, US20120316853A1, The Procter & Gamble Company, Inventors: M. Looney, L. Li, S. Lange, M. Whaley
- Zero scrap absorbent core formation process, U.S. Patent No. 5,597437, The Procter & Gamble Company, Inventors: S. Lange, D. Benson, J. Hackett, G. LaVon, B. Seitz
- Process for bonding webs, U.S. Patent No. 5,827,384, The Procter & Gamble Company, Inventors: D. Canfield, M. Hill, S. Lange, R. Lynch, P. Marshall, M. Whaley