Browsing OSU - International Conference on Web Handling by Title

Now showing items 286-305 of 429

    • Predicting the web length and layers in a wound roll 

      Gajjalla, A.; Markum, Ron E.; Good, J. K. (Oklahoma State University, 2019-06)
      The length of web in a wound roll is one mark of roll quality. The available web length in a roll is a concern for many who process webs and those who convert webs. There are algorithms that estimate the length of web and ...

    • Predicting web wrinkles on rollers 

      Good, J. K.; Beisel, J. A.; Yurtcu, H. (Oklahoma State University, 2009-06)
      There are two levels of web instability in web lines. The first level of web instability is called web troughs. Web troughs are due to the instability of webs that occur in free web spans. Web troughs have been shown to ...

    • Prediction model of paper-web wrinkling and some numerical calculation examples with experimental verifications 

      Hashimoto, H. (Oklahoma State University, 2005-06)
      In the web handling technology, it is very important engineering problems to predict and protect web wrinkling from several view points of product quality, manufacturing cost and so on. In this paper, the prediction model ...

    • Preventing negative issues at nip roller 

      Bass, Tom; Nagahori, Atsushi (Oklahoma State University, 2017-06)
      Dealing with film scratches, wrinkles, and air entrapment is a problem that many converters are faced with on a regular, if not daily basis. Part of the problem is the rollers they have to work with at the nip point. ...

    • Prevention of web floating at wrapped transport and guide rollers 

      Welp, E. G.; Kleinert, A.; Schuler, D. (Oklahoma State University, 2003-06)
      Increasing productivity of web converting machines requires constructive improvements for the prevention of web floating at transport and guide rollers. Existing solutions which carry off the air like vacuum or grooved ...

    • Prevention of wound roll defect of coated web 

      Kanda, T.; Akemine, S.; Hashimoto, H. (Oklahoma State University, 2009-06)
      The web which is coated with a coating agent on the surface to add a function is called coated web. This coated web is often made into wound roll to ease handling and storage after coating, and then it is passed to next ...

    • Principles of web slitting 

      Pfeiffer, J. D. (Oklahoma State University, 1997-06)
      The slitting arrangements used in the paper, plastic film, and metal industries have evolved into machines that use a variety of principles to sever the webs longitudinally. This presentation looks at a variety of ways for ...

    • Process direction dynamic model for high precision web/belt transport systems 

      Yang, Ming (Oklahoma State University, 2009-06)
      This article proposes a process direction dynamic model for closed loop belts and open loop webs used in high precision transport systems such as those found in printers where micron level registration is required. It gives ...

    • Propagation of longitudinal tension in a slender moving web 

      Brown, J. L. (Oklahoma State University, 1999-06)
      To date, most of the theoretical work on longitudinal web behavior has been directed at the problem of controlling average tension. Very little attention has been given to the subject of this paper - propagation of tension ...

    • Pseudo 3D viscoelastic winding model 

      Yu, Haowen; Poh, Edmond; Good, J. K.; Lu, Hongbing (Oklahoma State University, 2007-06)
      A pseudo 3D winding model that has considered orthotropic viscoelastic effects during winding and storage has been developed and implemented in a code revised from the 2D viscoelastic winding code developed by Qualls and ...

    • Pull rollers: Plain, vacuum and unported 

      Cole, Kevin (Oklahoma State University, 2015-06)
      The role of a pull roller in a web machine is identified. The ability of pull rollers, plain or vacuum type, to permit tension differences is explained. Three types of pull rollers are described. Among them is the un-ported ...

    • Quantitative analysis of nip-induced tension by use of digital image processing 

      Gueldenberg, B.; Welp, E. G. (Oklahoma State University, 1999-06)
      Winding paper in contact with a drum leads to the production of nip-induced tension which, to a high degree, influences the structure of the roll. Thus, comprehending the processes in the nip, including each parameter ...

    • Reading a roll 

      Roisum, D. R. (Oklahoma State University, 1997-06)
      Web or winder defects often leave a visible record of themselves in the wound roll that can be read much like the rings of a tree. Varying strains in each layer as it is wound will cause changes in geometry that can be ...

    • Real time data analytics as applied to web-to-roller traction in manufacturing 

      Cole, Kevin A.; Hopkins, R. W.; Hotto, N. A.; Scheible, J. J.; Schneider, Brooks J.; White, Thomas J. (Oklahoma State University, 2019-06)
      Avoidance of web handling-related imperfections is often a challenge. As an example, the limit of web-to-roller traction is typically not detected until it is exceeded, resulting in product damage. Detection is often made ...

    • Real time dynamic simulation for control system software verification 

      Bettendorf, R. (Oklahoma State University, 2001-06)
      It is a common practice in the paper industry to verify large portions of the control system software during machine commissioning. This is inefficient since the verification is done under production conditions when time ...

    • Real time dynamic simulation of a paper winder 

      Bettendorf, R. (Oklahoma State University, 2003-06)
      Typically, large portions of the winder control system software are tested during the commissioning process. This is inefficient since production is shut down and financial pressures limit the time available for testing. ...

    • Real-time tension control in a multi-stand rolling system 

      Shin, K. H.; Hong, W.K. (Oklahoma State University, 1995-06)
      The problem of real-time tension control in a metal-strip processing line is addressed. The tension in a metal strip changes due to not only the speed difference but also thickness changes at the ends of a span. The ...

    • Recent advances in web longitudinal control 

      Pagilla, P. R.; Knittel, D. (Oklahoma State University, 2005-06)
      Stable web transport through processing machinery is critical in the web processing industry. Demands for improved performance under a wide variety of dynamic conditions and web materials are placing additional emphasis ...

    • Refining our rules of thumb 

      Lynch, Ronald (Oklahoma State University, 2015-06)
      Rules of thumb are common in web handling for good reasons. Many of the theories of web behavior are still under investigation and often are complex and a function of properties that are difficult to measure. Because of ...

    • Regulation concept for web spreading equipment in web processing machines on the basis of neural networks 

      Welp, E. G.; Wang, D.; Kleinert, A. (Oklahoma State University, 2001-06)
      Web spreading systems are used in converting machines in order to guarantee a folding free web transport and a sufficient slit gap or slit separation. The adjustments, dependent on the respective application, are carried ...