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Photographic gallery.  Thousands of particles under the microscope.
Carbonless Copy Paper Debris Through the Microscope

Carbonless Copy Paper Debris

This is from an environmental tapelift in an office where large numbers of carbonless paper forms are processed.

Transmitted Off Crossed Circular Polarized Light


Carbonless copy paper relies on a chemical reaction to produce a color. One side of the sheet of paper is coated with micro-capsules of one reagent and the facing side of the adjacent sheet of paper is coated with the other reagent. Pressure ruptures the micro-capsules and the resulting reaction produces the color copy of the pressure pattern.

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