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Thermoelastic winding model with air entrainment
(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 ...
Effect of air-side leakage in roll winding
(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
(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 ...
Winding of interleaved materials
(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 ...