Browsing OSU - International Conference on Web Handling by Title
Now showing items 266-285 of 429
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On-line continuous measurement of rolls' coefficient of restitution
(Oklahoma State University, 1999-06)This paper reports on the development of a novel technique to measure on-line rolls' coefficient of restitution or "springiness". The ratio of speed of separation to speed of approach in an elastic collision is termed the ... -
On-line control of tension in web winding systems based on wound roll internal stress computation
(Oklahoma State University, 2001-06)One of the key challenges in the processing of flexible media such as plastic films is to obtain rolls without any aspect defect: if one considers that a "defect" (i.e. wrinkling or buckling) is due to the fact that the ... -
On-line tension profile optimization via moisture profile controls on the newsprint papermaking process
(Oklahoma State University, 2001-06)This paper describes a novel multi-profile control, which can simultaneously optimize both moisture and elongation and/or tension profiles of newsprint grades. The controller can include tension profile measurement [1][2] ... -
Optimization by integrating engineering and business models
(Oklahoma State University, 2005-06)To optimize is to find the "'best" solution given certain conditions and constraints. What is meant by best and how to find it has received scant attention. To the engineer, "best" may be fastest, strongest, most reliable ... -
Optimization of equipment and process conditions for film winding
(Oklahoma State University, 1999-06)Mathematical modeling of film winding has progressed to a point where it can offer much insight into the mechanics of this process. However, experience and testing on the actual hardware are still necessary to maximize ... -
Optimization of roll mechanical profiles in a continuous annealing line for steel strips
(Oklahoma State University, 1997-06)In order to set the mechanical characteristics to the target of the customer, cold rolled steel strips are annealed at high temperature in batch or continuous annealing furnaces. -
Optimization of wind-up tension of webs preventing wrinkles and slippage with experimental verification
(Oklahoma State University, 2009-06)This paper describes the optimization method of wind-up tension to prevent wound roll defects, mainly star defect (wrinkling) and telescope (slippage), based on the optimum design technique. Hakiel's nonlinear model with ... -
Optimization of winding conditions for preventing roll defects caused by thermal-viscoelastic property and experimental verification
(Oklahoma State University, 2015-06)Plastic films are used in many high functional products. They are produced on roll to roll system. The films are continuously wound in the shape of roll using this system. The wound roll is shipped to the store and ... -
Optimized slitting parameters for the shear slitting of paper
(Oklahoma State University, 2003-06)Due to the demand for an increasing quality of cutted or slitted products and the requirement of rising productivity in the slitting process, the optimization of mechanical slitting is gaining in importance for the converting ... -
Optimizing idler diameter
(Oklahoma State University, 2017-06)The idler is probably the most common roller in web handling, but it is one of the least studied. It influences both the highest and lowest tension we can run, and can defeat the most sophisticated tension control schemes. ... -
Optimizing nipped roller systems
(Oklahoma State University, 2017-06)Nipped rollers are central to many web converting processes - printing, coating, embossing, calendaring, and winding. Uniform products require uniform load and pressure from the nipping process. Uneven nipping not only ... -
Out-of-round paper rolls
(Oklahoma State University, 2003-06)Paper is usually shipped in rolls covered by a thin wrapper to protect it from moisture and dirt. In effect, the roll becomes the shipping container for the paper. A single sheet of paper is weak and fragile, but in roll ... -
Parametric study of nip load control on a pope reel
(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
(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
(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
(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
(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
(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
(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
(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 ...