Pur Hot Melt Manufacturer out from the edge


Posted June 30, 2017 by hotjoyachem

The slitting section of a pressure-sensitive slitter rewinder also requires special attention. First, the correct type of slitting method must be selected.

 
Another unique characteristic of converting Pur Hot Melt Adhesive webs (exposed or linered) is the conveyance of web trim. Non-adhesive edge trim is commonly vacuumed away with a vacuum trim removal system. Such systems are problematic with adhesives, as the strands can stick to the inside of trim tubes. Over the years, attempted solutions have included coating trim tubes with nonstick materials or soap solutions. These methods are never foolproof and can be expensive and messy.

Trim winders are a popular solution. These are individual winders, often traversing types, packaged into the machine as closely as possible to the point where the trim is slit. They only need be changed occasionally, depending on the width of the trim taken, and are easily loaded and unloaded by hand. Again, good machine design is necessary to accommodate these winders at the optimal point in the web flow.

The slitting section of a pressure-sensitive slitter rewinder also requires special attention. First, the correct type of slitting method must be selected. Choosing between shear (scissor), score (crush) or razor slitting is usually a function of two factors: the base web material and the minimum slit width.

Score is the most common slitting method for PSAs. The advantages are many: score knife holders are less expensive than shear tooling and are easily adjusted for various slit widths. They can be grouped close together (usually about half an inch apart) for narrow slitting.

Another advantage to the anniversary adjustment is its aftereffect on the web edge. For abounding materials, the scoring of the web amid the brand and the anvil cycle can serve to allowance the edge, inhibiting the breeze of adhering Pur Hot Melt Manufacturer out from the edge. Microburst and razor slitting aswell accept their abode in the pressure-sensitive world. Razor is acclimated for abounding blur tapes, and microburst is accepted in labelstock work.Http://www.joyachem.com/
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Last Updated June 30, 2017