EDI says its new slot die for web coating ‘provides consistent, streak-free application of pressure sensitive adhesives (PSAs), achieving higher line speeds and greater accuracy than conventional roll coating, with less environmental impact’.
EDI developed the die specifically for PSAs: while roll coating speeds for hotmelt application usually do not exceed 365m/min, it accommodates line speeds up to 610m/min and achieves coat weights as low as 0.0127mm. This is well below the conventional lower limit for hotmelts of 0.025mm, he company states.
The new die can be supplied as a stand-alone system, or as part of a completely integrated, computer-controlled coating station incorporating melt delivery systems from ITW Dynatec.
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