50ml square glass bottle of Sailor Manyo Koke dual shading fountain pen ink. This smooth-flowing water-based dye ink is specifically formulated to be safe for all fountain pens.
Koke is an aqua blue that shades out to purples and some green. As part of the third release in the Manyo ink series, Koke is a dual shading ink, which means it shades different colors than its base colors when pooling into areas of high and low concentration on the paper. Dual shading inks are really fascinating.
Goulet pro tip: This ink looks particularly stunning on water-resistant paper like Tomoe River.
Due to the nature of this particular ink, there will be variations in the color. This is completely normal. However we have highlighted the most common color swatch we have seen in our images, but your sample or bottle might vary slightly.
- Bottled Ink
- Bottle Material
- Bottle Opening Diameter
- 20.6mm (0.81in)
- Fast Drying
- Freeze Resistant
Whether or not an ink is specially formulated to better withstand freezing temperatures.
- Iron Gall
Ink made from iron salts and tannic acids. Though quite permanent and waterproof, these inks are typically known for causing chemical corrosion to metal pen parts (especially the nib) and should be used sparingly or with less-valuable pens.
Whether or not an ink is specially formulated to increase flow in your pen.
Whether or not the ink contains finely-ground solid particles in liquid suspension.
Whether or not the ink contains glittery particles.
- Water Resistant
Whether or not the ink, once dried on the paper, will resist being washed away with water.
- Special Features
Which pens can accept this ink?
Any of these fountain pens will work with bottled ink. Typically, as long as the pen can be filled with a converter, has a built-in filling mechanism like a piston, or can be eyedropper-filled, it can accept bottled ink.
What is shading, sheening, or shimmering ink?
Shading - A common (and often desired) result of a fountain pen ink pooling in certain parts of a letter when writing, so that the color and saturation of the ink appears different within a single letter or word. This characteristic cannot be achieved with ballpoint or rollerball pens and is a very appealing aspect of fountain pen use for those particularly drawn to all the pretty ink colors.
Sheen - Characteristic of a fountain pen ink where when ink pools another color can be seen on top of the ink, especially when looked at in different light angles using certain paper types.
Shimmering - Fountain pen ink that has small particles of glitter mixed in. There is no way to guarantee an ink will sheen, but using a larger nib on a pen will help obtain sheening results in your writing.
Is shimmering ink safe to use in fountain pens?
Yes! Shimmering ink is a great way to add some flare to your writing. We have found that a larger nib will showcase more shimmering particles while writing, but you can use any nib size and shimmering ink. All the ink we sell is safe for use in fountain pens.
My ink smells funny, is it safe to use?
Yes! Ink does not smell good- it usually has a chemical smell, along with other scents such as sulfur, rubber, chemicals or even paint. However, as long as you’re not seeing anything floating in the ink, it is safe to use.
It’s cold and my ink froze, is it safe to use?
Yes, frozen ink will not hurt your pen (after it’s thawed of course!) The issue with ink freezing is a concern because certain glass bottles could break as the water-based ink expands, and then you’d have a mess!
What is your return policy?
We do not accept returns for ink that has been used. Otherwise, we accept returns on unused ink products for up to 60 days from purchase. You can read all our Return Policies here.
To initiate a return, please submit a request at the Return Portal. Our Customer Care team might reach out to you for more information.