The Science Behind Fountain Pen Ink
Introduction
Every bottle of Ferris Wheel Press ink holds more than colour — it holds chemistry, craftsmanship, and a touch of wonder. Fountain pen ink might seem simple, but behind each shimmering drop lies a careful balance of science that ensures every pen flows smoothly, and every word feels magical.
What Is Fountain Pen Ink Made Of?
At its core, fountain pen ink is made from two key ingredients:
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Dye – This is what gives the ink its vibrant colour. Unlike pigment-based inks, dye particles fully dissolve in water, creating bright, transparent hues that flow freely through the feed and nib.
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Solvent (usually water) – This keeps the dye evenly mixed and helps it move smoothly from the converter to the paper.
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Additives – These are the quiet helpers: humectants that prevent ink from drying too fast, surfactants that control flow, and biocides that keep the formula fresh inside the bottle.
Together, these ingredients form a liquid that glides effortlessly across paper while staying gentle on your pen’s delicate parts.
How Ink Flows Through Your Pen
Every fountain pen relies on the same elegant science: capillary action.
The narrow channels inside the feed draw ink from the converter toward the nib, while the nib’s slit and breather hole help control the air–ink exchange.
This balance between ink flow and air pressure ensures a consistent, even line — not too wet, not too dry.
Why Paper Choice Matters
Fountain pen ink interacts differently depending on the paper.
Smooth, high-quality paper allows the ink to sit on the surface, showing off its true colour and sheen. Rough or absorbent paper soaks up ink faster, leading to feathering or duller tones.
The science here lies in surface tension — how tightly ink molecules cling to one another versus how quickly they spread across fibres.
The Secret to Shimmer Inks
Shimmer inks are where science meets spectacle. Instead of dye alone, they include fine metallic or pearlescent particles suspended in the liquid.
These particles reflect light beautifully but must remain evenly dispersed, so gentle shaking before use is key. Check our series of FerriTales Fountain Pen Inks for a glimpse into our shimmer ink collection.
To keep shimmer inks performing well:
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Clean your pen more frequently.
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Store bottles upright to let particles settle safely.
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Avoid leaving inked pens unused for long periods.
Why Ferris Wheel Press Ink Feels Different
At Ferris Wheel Press, every ink is blended to capture emotion and imagination.
The science ensures consistency, but the artistry gives it personality. Each bottle is hand-tested for colour depth, flow, and drying time — ensuring your pen never just writes, but performs.
So whether it’s a soft pastel or a bold shimmer, you’re not just writing with ink — you’re writing with a story.