Why Does Material Stick to Rubber Roller Surfaces? When film, foil, paper, nonwoven, coated stock, adhesive layer, ink, or residue starts picking up at one contact point, the line usually shows it quickly: dirty transfer, drag marks, uneven coating, web pull, or repeated cleaning stops. The first useful checks are simple. Look at what is
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Common Coating and Laminating Defects On a coating or laminating line, defects usually show up in very practical ways: adhesive starts building up on a roller, a line keeps appearing on the coated surface, a mark shows after the lamination nip, or the web begins to wrinkle after drying. These problems are common on flexible
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What Causes Web Wrinkles in Roll-to-Roll Lines? When a moving web starts to wrinkle, start with the first place where the wrinkle appears. In film converting, slitting, rewinding, coating, nonwoven, paper, and foil lines, wrinkles often show up after a change in tension, speed, web path, material thickness, static behavior, or winding contact. A wrinkle
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What Causes Surface Marks and Lines on Web Materials? If surface marks, lines, pressure impressions, or repeat marks appear on thin film, coated webs, nonwoven, paper, foil, or metal strip materials, the first question is simple: where did the mark start? Some marks are already present in the incoming roll. Some become visible after coating,
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Common Film Converting Defects Wrinkles, fine lines, pressure marks, dust spots, tracking drift, and winding marks are common film converting defects. They may look like small surface problems, but they often point to changes in web tension, static, contact pressure, guiding, slitting, or rewinding. Do not try to name the cause too early. First look
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Why Do Web Materials Slip on Rubber Rollers? When film, paper, foil, fabric, nonwoven, coated web, or laminated material starts slipping near a traction, drive, nip, or rewinding position, the first thing to check is where the slip appears and what changed before it started. The cause may be on the roller surface. It may
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How to Choose Rubber Roller Material for Your Application If you need to choose a rubber roller for a production line, start with the job of the roller. A roller that pulls film, presses a laminated web, transfers adhesive, guides foil, or supports a sheet does not need the same rubber behavior. The practical path
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