Posts filed under Iroshizuku

Pilot Iroshizuku To-ro Fountain Pen Ink Review

Pilot Iroshizuku To-ro Fountain Pen Ink Review

Pilot has been actively updating the full Iroshizuku Fountain Pen Ink lineup over the past few years by removing underperforming colors, and adding new shades to fill in the gaps. Their choices have been questionable these past few rounds, but they nailed the newest three additions that launched in Fall 2024.

The newest shades are the Wintery-Blue Rikka, the deep Purple-Red-Black Syun-gyo, and the one I’m discussing today, the Warm Lantern Yellow-Orange of To-ro. Universally, these have been well-received, although did they really need another Blue? Rikka is fine, but I believe the least interesting of the bunch. Syun-go seems to lead the sales and usage charts - anecdotally, at least. To-ro, well, that’s a Brad ink, so let’s get into it.

Pilot Iroshizuku To-ro

Several years ago, as part of Pilot’s 100th Anniversary celebration, they launched an ink called Daikokuten, which quickly became one of my favorites. I classify it as a Yellow ink, and it is shockingly legible. I had been waiting to see if Pilot would bring it, or something similar, to the main Iroshizuku lineup, and instantly wondered if To-ro was it.

Not exactly, but To-ro may be better for more people with shades of Orange mixed with Yellow. A comparison swatche shows the differences:

Daikokuten vs To-ro

To-ro is clearly more Orange on the page, but not as Orange as Pilot’s other options in the lineup, Yu-yake and Fuyu-gaki. I think Yu-yake is closer to a standard shade of Orange, and Fuyu-gaki is the Red-Orange option. To-ro leans more yellow, and has an interesting vibrancy about it, making it perfectly legible on the page, even with my small handwriting.

Like all other Iroshizuku inks I’ve tried, the performance is right down the middle. They have great flow, good color, average dry time, moderate shading, and almost no sheen. In short, they are a Goldilocks performer. Price-wise, at $28.50 for 50 ml, they creep over into the expensive side of the ledger, but I think that’s fair for the quality. The bottle design is top-notch, as well.

Pilot Iroshizuku To-ro Lines

Given all that, how does To-ro rate among the new three inks? I still think Syun-gyo is the best - and most popular - of the new colors, for good reason. It is the most different shade, and most usable on the page. To-ro is a good addition to the lineup, but with it, we are now teetering on the edge of maximum Oranges for a 24 ink collection. Will Pilot continue to discontinue underperforming inks and create new ones? I wouldn’t be surprised, but I’m not sure this is an every year thing unless they grow the SKU count of the Iroshizuku lineup.

Pilot Iroshizuku To-ro Writing

To-ro is an ink that is right up my alley, and a good switch up from the hotter Oranges I frequently use. It clears the light shade barrier by a good margin, and is easily readable on the page. I see this being a frequent refill option for many of my pens, and I can’t wait to see where it lands next.

(JetPens provided this product at no charge to The Pen Addict for review purposes.)


Pilot Iroshizuku To-ro Line Art
Posted on June 9, 2025 and filed under Pilot, Iroshizuku, Ink Reviews.

Pilot Iroshizuku Tsuki-yo Ink Cartridge Review

Pilot Iroshizuku Tsuki-yo Ink Cartridge Review

Under no circumstances are fountain pen ink cartridges a good value. The cost per milliliter is higher than with bottled ink, and there is the added waste of a bunch of little plastic cartridges laying around.

Yet, I love them.

As with a lot of things ink life, moderation is key. My current ink bottle situation is an exercise in excess. Anarchy is a better term. Adding new ink cartridges to the situation doesn’t help, but I have some fixed ideas about pen and ink combinations, where the use of cartridges grants me the freedom to use certain pens more.

That sounds ridiculous, and it is. Then again, here you are reading a blog about stationery, so let’s at least be ridiculous together.

Pilot Iroshizuku Tsuki-yo Ink Cartridge

Would you be surprised if I told you that in three* of my priciest pens I regularly use ink cartridges? Why? Two reasons: 1. I want to use these pens, and this allows me to use them more, and 2. I found ink in cartridge form that I love.

Point one is laziness, let’s be honest. But if that is what gets me using a pen more frequently, then sign me up for a nap! In conjunction with point two, that ease of use combined with a heck of a good pen and ink combo, well, that is really what it is all about.

When I bought my Namiki Yukari Milky Way, I committed to using only one ink with it: Pilot Iroshizuku Tsuki-yo. It’s a great color, and a perfect match for the pen. I use it in bottle form, with the Pilot CON-70 converter, aka the best, worst converter in the world. The CON-70 is Pilot’s largest ink capacity converter, which is good, but I can only fill it and clean it well with a syringe, which is bad/annoying. Would I ever be able to get Tsuki-yo in cartridge form so I am less angsty about inking up what is quite possibly my favorite pen?

Pilot Iroshizuku Tsuki-yo Ink Cartridge

Pilot announced the launch of their Iroshizuku ink cartridge lineup in early 2022, and after a few delays in their worldwide release, they have arrived. 12 of the 26 stock colors are available in packs of 6 for a whopping $12.50 per pack. Each cartridge holds 0.8ml, putting the cost at two dollars and sixty cents per milliliter. Compare that to the 50 ml Iroshizuku ink bottles, which track at right around fifty cents per milliliter, and you realize how ridiculous they are.

But I love them. One six-pack at a time, because they make me want to use my pen more.

Like I said, there is no narrative that makes these a good value. Except one. How many milliliters of unused ink is sitting in a bottle on your shelf? Is it better to spend $25 and use 25% of it, or spend $12.50 and use 100% of it? There are a lot of ifs, ands, or buts in that statement, but we all want to use our stuff more. Smaller and less cost-effective may work in certain situations, as silly as that sounds.

Pilot Iroshizuku Tsuki-yo Ink Cartridge

Again, moderation is key here. I bought Tsuki-yo for a specific use case. I will not be adding another five boxes of Iroshizuku ink cartridges to the collection.

As poor as the price for these cartridges is, the ink itself is fantastic. I wouldn’t have sprung for them if it wasn’t. Tsuki-yo translates to “Moonlight Night” and is a beautiful dark blue with a hint of teal. On the right paper, there is a touch of red sheen to be found around the edges. It matches the Raden planets in the Milky Way wonderfully.

Fountain pen ink cartridges will always cost more than their bulk bottle brethren. They are great for travel, portability, and ease of use. The trade off is the price, and, on occasion, that’s a trade I’m willing to make.

(*The other two pen/cartridge combos I use are the Nakaya Portable Kuro-tamenuri with Platinum Mt. Fuji Blue Black, and the Nakaya Piccolo Negoro Orange with Platinum Carbon Black.)

(I purchased these cartridges from Yoseka Stationery for review purposes at full retail price.)


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Pilot Iroshizuku Tsuki-yo Ink Cartridge
Posted on January 9, 2023 and filed under Pilot, Iroshizuku, Ink Reviews.

Pilot Iroshizuku New Ink Colors Giveaway

Pilot Iroshizuku New Ink Colors Giveaway

When Pilot launched their three new Iroshizuku ink colors, they did something odd. You could buy a three-pack of 15 ml bottles, but only with three of the same ink color. I’ve yet to come up with a logical reason for this, so I took matters into my own hands for this giveaway. I validated their decision buy buying three three-packs of Hana-ikada, Hotatu-bi, and Sui-gyouko, and broke them up to make my own three pack for this giveaway. That will teach them!

To win one 15 ml bottle of all three new inks, read the rules below and get to entering!

Posted on May 3, 2022 and filed under Pilot, Iroshizuku, Giveaways.