Adhesives for RFID Tags and RFID Labels

adhesives.jpg An adhesive is "a nonmetalic material which is capable of joining together substances by means of surface adhesion and inner strength".

Adhesives are created in three different ways:

  1. solvent based adhesives: evaporation of solvent necessary after coating
  2. water based adhesives: evaporation of water necessary after coating
  3. 100% adhesives: drying by cooling or radiation.

rfid_labels.gif
RFID tags typically use one of the following:

  • pressure sensitive adhesives (PSA) permanently adhere at room temperature (used for labels)
  • lamination adhesives do not adhere at first, but do so after time for drying (used for tickets)
  • sealing adhesives require the adhesive to be heated before adhering (may be used with plastic injected molded tags)


This should point out how important the environmental conditions the tag will operate in. For a PSA, what is room temperature? For a lamination adhesive, what is the relative humidity?

Two other important characteristics of the adhesives are:
Cohesion breakage allows the adhesive to split during the removal of the label from the liner so that parts of the adhesive remain on the tag.
Adhesion breakage prevents adhesive from being transferred onto the tag when it is removed from the backing.

For an RFID label, the cohesion breakage of the adhesive must be strong enough to keep the tag on the backing, but only until a person or label applicator removes it. Then parts of the adhesive remain on the back of the tag so that it can be affixed to an item, typically at room temperature.

Believe it or not, there is a QA process to measure this breakage. Peel Force is the power which is necessary to remove a PSA-material adhered onto standard surface with a defined speed (300 mm/min) under a defined angle (180°).

Are you currently using or considering RFID technology?

A thirty minute call with one of The RFID Network subject matter experts can save you months of research, the expense of purchasing hardware, software, or RFID tags that do not meet your requirements or operate as the manufacturer claims. We can directly introduce you to the suppliers with the highest customer satisfaction ratings.

Our team is comprised of RFID experts with 10 to 25 years of RFID experience that are hands-on evaluating and testing the latest RFID technology in real world environments.

We provide highly specialized, 3rd party, vendor neutral professional services, unmatched in the industry, which includes:

  • RFID technology selection (what hardware, software, or RFID tags best fits your requirements)
  • RFID vendor selection (what companies should you purchase from)
  • 3rd party project review (are you being overcharged for RFID products or consulting services?)
  • Executive Briefings (how will RFID technology benefit your specific business opreations)
  • Writing RFP's and reviewing submitted proposals that include RFID


For more information on how we can assist you please contact us or get started today with Ask an Expert: RFID Network Telephone Support

This article has been viewed 14753 times.

AddThis Social Bookmark Button

Add comment


Security code
Refresh

Your Cart is currently empty.

Research RFID Systems


List Your Products Here