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What is Back-Coating? The Invisible Layer Saving Your Printhead
Pick up a roll of thermal transfer ribbon. One side feels dull (the ink). The other side feels smooth and shiny.
That shiny side is the Back-Coating. It is the only thing standing between your expensive thermal printhead and destruction.
Many procurement managers buy the cheapest ribbon they can find on the market. They save $0.50 on the roll, but six months later, they spend $500 replacing a worn-out printhead.
At Only Imaging, we consider the Back-Coating to be just as important as the ink itself. Here is why.
Function 1: Lubrication (Reducing Friction)
A thermal printhead is a ceramic plate. As the ribbon flies past it at 10 inches per second, the friction is immense.
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Cheap Ribbons: Have no coating or a poor one. It acts like sandpaper, grinding down the protective glass layer of the printhead.
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Only Imaging Ribbons: Use a Silicone-Based Back-Coating. It acts as a solid lubricant, allowing the printhead to glide effortlessly. This can double the lifespan of your hardware.
Function 2: Thermal Conductivity
The heat must travel through the back-coating to melt the ink. If the coating is too thick or uneven, the heat transfer is blocked. You get “faint spots.” Our coating is applied with micron-level precision to ensuring 100% heat efficiency, meaning you can print at lower energy settings (which also saves the printhead).
Function 3: Anti-Static (The Ground Wire)
Friction creates static. As we discussed in Day 12, static kills pixels. Our proprietary back-coating contains Conductive Agents. It actively pulls static electricity away from the friction point and grounds it through the printer chassis.
The “Tape Test” for Back-Coating
How do you know if your current supplier is cutting corners?
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Take a piece of clear scotch tape.
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Stick it to the Back Side (shiny side) of the ribbon.
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Peel it off.
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Result: If the tape pulls off a clear/brown layer, the coating is weak. If the tape comes off clean, the coating is chemically bonded and durable.
Conclusion: Don’t Buy Sandpaper
You wouldn’t run your car engine without oil. Don’t run your printer without a premium back-coated ribbon.
Protect your assets. Choose Only Imaging.
ONLY IMAGING is a leading supplier of labels, printing equipment and associate consumables, including TTR products in various widths and lengths. Please take the opportunity to learn more about our range of high-quality thermal transfer ribbons and explore our other products for any further questions you may have click Here.
