Browsing OSU - International Conference on Web Handling by Title

Now showing items 278-297 of 429

    • Parametric study of nip load control on a pope reel 

      Bettendorf, Robert (Oklahoma State University, 2019-06)
      The secondary arms on a conventional pope reel control the nip load between the winding parent roll and the reel drum. As the parent roll grows, the secondary arms pivot away from the reel drum changing the angle of contact ...

    • Peeling process development for thin flexible webs 

      Lei, Herong; Cole, Kevin A. (Oklahoma State University, 2007-06)
      Many consumer products are manufactured from continuous media. When the media is thin and flexible, it is referred to as a web. Webs are typically manufactured by extrusion or casting; however, for some applications, a ...

    • Performance of paper tubes 

      Gerhardt, T. D.; Rhodes, D. E.; Johnson, C. G.; Wang, Y.; McCarthy, M. (Oklahoma State University, 1999-06)
      The tube performance requirements critical to a manufacturer's needs are dependent on such parameters as the manufacturer's processes, winding media, packaging, and equipment. Two important strength requirements for paper ...

    • Permanent out-of-plane distortions of paper printed in heat-set web offset 

      Bosse, R. (Oklahoma State University, 1999-06)
      Paper, a flat material, frequently with a coated surface, is made out of fibres. In heat-set offset printing a permanent out-of-plane distortion, the so-called washboard effect, occurs quite frequently, which is clearly ...

    • Phenomens of rolling contact in paper calendering 

      Niebuhr, V.; Desch, M.; Welp, E. G. (Oklahoma State University, 2009-06)
      In soft calenders synthetic roll covers are "state of the art", without knowing their detailed rolling contact behavior and their phenomenological effects to gloss and smoothness of paper. Complex interactions of process ...

    • Photonic curing for enhancing the performance of roll-to-roll printed electronic devices 

      Maskey, Bijendra Bishow; Koirala, Gyan Raj; Kim, Yushin; Park, Hyejin; Yadav, Pravesh; Park, Jinhwa; Sun, Junfeng; Cho, Gyoujin (Oklahoma State University, 2019-06)
      The advent in printing technology promotes the possibility of roll-to-roll manufacturing process for low-cost, high throughput, and large area printing of the electronic devices in flexible substrate materials. However, ...

    • Practical application of idler roller performance measurements and models 

      Walker, T. J. (Oklahoma State University, 2003-06)
      Idler rollers are present in abundance on most web processing lines. Their simple design, a rotating cylinder driven by the web-to-roller traction, lead most to go unmonitored until degrading performance results in product ...

    • Practice application and design of concave rollers 

      Walker, T. J. (Oklahoma State University, 2007-06)
      A concave roller is an effective and inexpensive wrinkle-preventing roller design. By definition, a concave roller (a.k.a. a reverse-crowned roller) is a roller with a larger diameter at the edges than at its center. But ...

    • 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 ...