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Now showing items 61-70 of 126
Friction characteristics between thin plastic film and steel roller
(Oklahoma State University, 2015-06)
To establish the Roll-to-Roll Printed Electronics, which can be applied to manufacture the high functional thin film based devices, it is needed to combine the Roll-to- Roll transportation system and coating technology ...
Real time data analytics as applied to web-to-roller traction in manufacturing
(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 ...
Thin tape traction over a grooved roller
(Oklahoma State University, 2015-06)
Traction between a thin, O(5 μm), tensioned tape and a grooved roller is studied. In the slow tape speed limit, tape contact over a grooved roller is studied analytically. A closed form relationship for the belt-wrap formula ...
Wireless monitoring of internal wound roll pressures
(Oklahoma State University, 2013-06)
Winding is a dynamic process. The final roll is the product of all that happens during the winding process from roll start to final cutoff. Nearly all roll measurement methods try to characterize a roll's structure after ...
Winding mechanics of laminate webs
(Oklahoma State University, 2017-06)
Models that describe the residual stresses due to winding single layer webs at the end of roll-to-roll manufacturing machines are mature. These models have been used to reduce or avoid defects that are due to winding. Many ...
Evaluating the impact of non-uniform paper properties on web lateral instability on printing presses
(Oklahoma State University, 2013-06)
Lateral instability of the paper web during printing may lead to several quality issues such as print misregistration, wrinkles, tracking issues, etc. The problem often leads to paper rejects and claims from printers. There ...
Advantages of inertial roll alignment technology in estimating web handling issues
(Oklahoma State University, 2011-06)
Roll alignment plays a crucial part in eliminating web handling issues in manufacturing processes. Web handling issues due to roll misalignment includes tracking, tension control, uneven material gauge, and in some cases, ...
Refining our rules of thumb
(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 ...
On the governing equation for web tension with out-of-round rolls
(Oklahoma State University, 2013-06)
In roll-to-roll (R2R) manufacturing the presence of non-ideal elements, such as out-of-round or eccentric rolls, induces periodical oscillations in the web tension signal. Model simulations based on ideal elements do not ...
Preventing negative issues at nip roller
(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. ...