Adhesive Guard™ Labels

Ever had the problem where roll, fanfold, or sheet labels unintentionally stick together or pre-dispense inside your printer?  Pointil’s Adhesive Guard™ Labels helps prevent this problem.

Pressure sensitive adhesives are available for a range of environments including freezer or refrigerator temperatures to high heat temperatures.  Due to the viscous nature of the pressure-sensitive adhesives, they are susceptible to “spreading” out (i.e. oozing) when pressure is applied or when subject to heat.   Typically adhesives become softer at higher temperatures.  Adhesives designed for freezer or refrigerator applications will be softer at room temperature or higher.  In every case, adhesives will soften as temperatures increase.  This is particularly true of rubber based adhesives and freezer grade adhesives.  Further, adhesives are often made with a “heavy coat weight” of adhesive for difficult-to-adhere applications.  These tend to be softer adhesives (e.g. rubber based adhesives and/or all temperature or freezer grade adhesives).  The heavier coat weight of adhesive adds to the potential for oozing.  Even regular/standard acrylic adhesive used in high temperature environments like laser printers, can result in an oozing problem.   This may also occur when users store their labels in less than recommended storage conditions (for example, stored labels in much higher temperature areas).  The heat will soften the adhesive and cause oozing.

When the adhesive oozes out, it typically forms a halo around the facestock shape or oozes between slits in the facestock and/or liner.  Such labels that run through printers (i.e. thermal transfer printers, direct thermal printers, laser printers) can induce mechanical problems when the adhesive oozes.  Typically, laser printable labels are sheeted.  If the adhesive has oozed out around the die cut area on the facestock, labels on the second sheet in the stack could prematurely release when stuck to the back of the first sheet.  As the first sheet is advanced along the feed path, the pre-released label stuck to the back will stick to the first available surface in the feed path resulting in a paper jam resulting in printer stoppage and possible printer damage.  Similarly, adhesive ooze can occur through slits on the backside of the liner resulting in adhesive exposure on the liner side.  In such cases, the adhesive ooze from the back of the top sheet in a stack can stick to the next sheet in the stack.  When the top sheet is advanced in the printer, the exposed adhesive may pull a label off the facestock of the next sheet in the stack, resulting in exposed adhesive.  Adhesive that comes in contact with hot fuser rollers in laser printers can permanently damage the fuser roller resulting in costly parts replacement and printer down time.  Adhesive “debris” that is left along the feed path of the label through a printer can leave an adhesive path throughout the printer causing feeding problems such as jamming.  Such adhesive debris can build up and eventually be pulled along the printer path by the label or documents being fed through for printing.  Adhesive ooze debris that ends up on the surface of the facestock may also impact the quality of the print image made by the printer.

Thermal and thermal transfer printers typically process roll labels or fanfold labels.  If adhesive ooze is significant, labels may pre-dispense in the unwind process, exposing the entire adhesive area resulting in labels sticking to the first available surface in the feed path.   This will cause a paper jam resulting in printer stoppage.  If the adhesive ooze does not result in a pre-dispensed label, the label could proceed through the feed path and come in contact with the hot surface of the print-head resulting in print-head damage.  Adhesive ooze debris that ends up on the surface of the facestock may also impact the quality of the print image made by the printer.

Pointil’s Adhesive Guard™ Labels reduce adhesive ooze that could result from the use of soft adhesives and/or heat exposure caused by storing labels in an area with an elevated temperature.   Adhesive Guard Labels perform better in thermal printers, thermal transfer printers, and laser printers compared to labels having excess ooze.  This gives label users the opportunity to have an adhesive that works for difficult to adhere applications yet will still work in their thermal transfer, thermal, or laser printers.

 

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