Energy-efficient crosslinking with low-pressure lamps
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The standard medium-pressure mercury vapour lamps employed for crosslinking UV-hotmelt pressure sensitive adhesives (PSAs) draw between 120 W and 240 W power per centimetre of lamp width. The question therefore arises as to which properties and potential savings that might be attained from the use of energy-efficient low-pressure lamps.
UV-curable, hotmelt pressure-sensitive adhesives offer a number of advantages over other PSA technologies /1/. The adhesives are free of solvents and water and can be applied by conventional hotmelt adhesive coaters. The desired pressure-sensitive properties are achieved by irradiation with standard medium-pressure mercury lamps and vary with the UV dose (see box 1).
- /1/.How can UV curable adhesives contribute to success in the tape industry? Wolfgang Aufmuth, Technology Manager, Collano Adhesives AG, Pressure Sensitive Tape Council, PSTC-Tech35 Technical Seminar, 2012Google Scholar