Browsing OSU - International Conference on Web Handling by Author "0877e475-4d34-4461-a9b0-01b39794869d"

Now showing items 1-9 of 9

    • Effect of air-side leakage in roll winding 

      Lei, H.; Cole, K. A. (Oklahoma State University, 2003-06)
      In web winding processes, a thin layer of air is entrained into rolls during winding. This air reduces the interlayer pressure in the wound roll because the air acts like a sponge between adjacent web layers. Winding models ...

    • Effects of non-ideal webs on roll winding 

      Cole, K. A. (Oklahoma State University, 2003-06)
      In typical winding processes, webs are rarely (if ever) ideal but instead thickness non-uniformity and distortions (two examples) are the norm. These deviations from ideal have significant ramifications to both predictive ...

    • Experimental and theoretical study of web traction over a nonvented roller 

      Rice, B. S.; Cole, K. A.; Muftu, S. (Oklahoma State University, 1999-06)
      The traction developed between a thin flexible web, wrapped around a nonvented, rotating cylindrical roller is studied experimentally and theoretically. A series of eight webs representing a wide range of surface roughness ...

    • Measurement of web feed rates in rubber covered nip roller applications and the impact on wrinkle formation 

      Cole, K. A.; Walker, T. J. (Oklahoma State University, 2011-06)
      Nip rollers are used extensively in web handling processes; however, rubber-covered rollers have the unwanted and often unpredictable characteristic of unknown surface speed owing to coupling between circumferential and ...

    • Mechanics of a cylindrical flexible web floating over an air-reverser 

      Muftu, S.; Cole, K. A. (Oklahoma State University, 1999-06)
      The mechanics of the fluid/structure interaction between a thin flexible web, wrapped around a cylindrical drum (reverser), and the air cushion formed by external pressurization through the holes of this drum is analyzed. ...

    • Thermoelastic winding model with air entrainment 

      Lei, H.; Cole, K. A. (Oklahoma State University, 2001-06)
      Rolls of films are routinely stored under varying conditions before being unwound into downstream operations. During storage, interlayer pressures can change relative to the pressures generated during winding. These changes ...

    • Winding of interleaved materials 

      Lei, H.; Cole, K. A. (Oklahoma State University, 2005-06)
      The manufacturing of flexible display products has very tight specifications on the dimensional changes between the coating stations or between different passes of a multi-pass coating process. Web stretching and stress ...

    • Wrinkling of foils 

      Walker, T. J.; Cole, K. A.; Zagar, S.; Quass, J. (Oklahoma State University, 2011-06)
      Aluminum and copper metal webs less than 150 microns (6-mils) are considered foils. Demand for aluminum and copper foils are growing, driven by growing markets for flexible electronics, flat panel displays, lithium batteries, ...

    • Wrinkling of wide webs 

      Walker, T. J.; Cole, K. A. (Oklahoma State University, 2011-06)
      Wrinkling remains one of the top causes of converting process waste. Though wrinkles created by roller misalignment and web bending (shear wrinkles) are well-understood, nearly all the published research and modeling has ...