GREEN BAY, Wis. - s4story -- MECA offers two rolls that combat this common web handling issue

Wrinkles have been a major issue in web handling applications since the beginning of converting technology. While the root cause can vary, one solution for eliminating web handling wrinkles may be as simple as installing either of two specific types of rolls designed to address this challenge.

No two webs or web lines are exactly the same, which often makes identifying the root cause a process of elimination. MECA helps minimize the list of possible causes with two roll designs that focus on eliminating web handling wrinkles.

Our reverse taper roll, also referred to as a reverse crown roll, features a concave surface that has a larger diameter at the ends than in the middle. This design encourages the web to climb up to the high side of the roll, gently stretching out the web and thus eliminating wrinkles.

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Use this checklist for eliminating web handling wrinkles

Identifying the root cause of web wrinkles often comes down to a relatively small number of variables that exist outside the influence of roll design.

• Machines out of alignment – This should be the first detail to check when eliminating web handling wrinkles. Investing in new rollers is a waste of money if your machine stands have shifted out of alignment.
• Not enough web support – Check the space between rollers, as wrinkling tends to occur more often on longer spans. Idler rolls provide the needed support to avoid this issue. A good rule of thumb uses the width of the web as a starting point. You may need additional idler rolls if the unsupported span is 3x the width of your web.
• Poor web quality – Issues such as poorly wound parent rolls can result in web wrinkles. Likewise, excessive parent roll run-out can lead to increased vibration and web flutter.

When ordering, make sure to share details with your supplier such as the amount of web wrap, web tension (PLI), web width, maximum line speed, and any nip load (PLI). The MECA team can guide you through these questions.

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For more information about MECA's design and manufacturing capabilities, please call (920) 336-7382, or visit https://www.mecagb.com/.

About MECA

MECA is a premier manufacturer of precision rolls for the printing and web handling industries. MECA specializes in flexographic print sleeves, heat transfer rolls, carry rolls, mandrels, coating rolls and vacuum rolls. As part of the Precision Roll Solutions family, MECA helps the world's leading manufacturers leverage texture and other process variables to make their products more effective and enhance their impact in the marketplace.

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