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Pressure Sensitive Label Topcoats

What is a topcoat?

A topcoat is a surface treatment applied during the manufacturing of the face stock that provides for ink adhesion, label durability and visual enhancement of the finished label. Topcoats act similarly to varnishes but are beneath the printed area of the label, therefore provide no external protection for the ink.

In most cases the coating increases the ability of the ink to adhere to the label face stock, preventing smearing or flaking of the printed image. Topcoats are used primarily on non-absorbent substrates such as laminated foils, metallic papers, and film materials (vinyl, polyester, polypropylenes, etc.). Topcoats may also prevent the face stock or label material from breaking down, increasing its longevity.

Benefits of Face Stock Topcoats

Receptiveness to printing methods
  • Printing press
    • Receptivity to flexographic printing
    • Receptivity to silk-screen printing
    • Receptivity to digital printing
  • End user printing
    • Laser - Toner is applied and heated onto the label surface.
    • Bubble / Ink jet - Ink is sprayed onto label surface.
    • Thermal transfer - Heat applies ink onto the label using a resin or wax ribbon.
    • Direct thermal - Heat burns image directly onto label surface without the use of ink or ribbon.
Face stock finish
  • Color - Pigments and opaquing compounds applied to face stock during the manufacturing process.
  • Matte - A finish giving the face stock a dull surface with a low level of reflectivity.
  • Glossy - A finish giving the face stock a smooth surface with a shine or luster. A glossy surface has a high level of reflectivity.
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