--- product_id: 4099838 title: "Yasutomo Black Sumi Ink (Bokuju) 12 oz." brand: "yasutomo" price: "¥7226" currency: JPY in_stock: true reviews_count: 11 category: "Yasutomo" url: https://www.desertcart.jp/products/4099838-yasutomo-black-sumi-ink-bokuju-12-oz store_origin: JP region: Japan --- # No grinding, ready-to-use Water-resistant when dry Rich, deep black pigment Yasutomo Black Sumi Ink (Bokuju) 12 oz. **Brand:** yasutomo **Price:** ¥7226 **Availability:** ✅ In Stock ## Summary > 🖤 Elevate your art with the timeless power of Yasutomo Black Sumi Ink! ## Quick Answers - **What is this?** Yasutomo Black Sumi Ink (Bokuju) 12 oz. by yasutomo - **How much does it cost?** ¥7226 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.jp](https://www.desertcart.jp/products/4099838-yasutomo-black-sumi-ink-bokuju-12-oz) ## Best For - yasutomo enthusiasts ## Why This Product - Trusted yasutomo brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Trusted by Pros:** A staple for artists and educators alike, with a 4.7-star rating and rave reviews for reliability. - • **Effortless Creativity:** Skip the grind—this 12 oz bottle delivers instant ink, saving you precious studio time. - • **Brush-Friendly Formula:** Low shellac content means your brushes stay cleaner longer—no gumming or clogging. - • **Water-Resistant Finish:** Enjoy smudge-proof, waterproof lines perfect for layering with watercolors without bleed. - • **Pure Vegetable Soot Power:** Experience authentic sumi ink crafted from high-quality vegetable soot for unmatched depth and richness. ## Overview Yasutomo Black Sumi Ink (Bokuju) is a 12 oz bottle of premium, permanent liquid ink made from high-quality vegetable soot. It offers a rich black color that is water-resistant when dry, eliminating the need for grinding traditional ink sticks. Its low shellac content ensures brushes remain clean and clog-free, making it a favorite among professional artists and educators for sumi-e, comics, and mixed media applications. ## Description Permanent liquid Sumi ink made from high-quality vegetable oil soot. It is economical, convenient and time-saving, as it eliminates the need for grinding. Contains a small amount of shellac for water resistance. Review: Good standby ink. - This is the ink I use in the Comics classes I teach. It's economical, and it is pretty much waterproof when dry so you can use water color with it. You can't do a big wash of yellow over a black area, but if you stay within the inked lines you won't get any bleeding. I've used this ink for years. It doesn't contain a lot of glue or shellac like binders so it doesn't gum up my brushes the way Higgins or other india ink can, even with the best of washing practices. Review: Outstanding product. - Outstanding product; real quality ink for Sumi-e ## Features - Sumi ink is made of high-quality vegetable soot - Lightfast and on-waterproof - Black ink - 12oz bottle ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B004O7AIUW | | Best Sellers Rank | #44,413 in Arts, Crafts & Sewing ( See Top 100 in Arts, Crafts & Sewing ) #67 in Drawing Inks | | Brand | Yasutomo | | Brand Name | Yasutomo | | Container Type | Bottle | | Customer Reviews | 4.7 out of 5 stars 247 Reviews | | Global Trade Identification Number | 00031248012722 | | Ink Color | Black | | Item Volume | 354.88 ml | | Item Weight | 14.4 ounces | | Manufacturer | Yasutomo | | Manufacturer Part Number | KF12 | | Model Number | KF12 | | Number of Items | 1 | | Package Information | Bottle | | Paint Type | Oil | | UPC | 031248012722 | | Unit Count | 1 Count | | Volume | 354.88 ml | | Warranty Description | No Warranty | ## Product Details - **Brand:** Yasutomo - **Global Trade Identification Number:** 00031248012722 - **Item Volume:** 354.88 Milliliters - **Package Information:** Bottle - **Paint Type:** Oil ## Images ![Yasutomo Black Sumi Ink (Bokuju) 12 oz. - Image 1](https://m.media-amazon.com/images/I/61tuXu8jKAL.jpg) ## Questions & Answers **Q: Can you use it in a fountain pen?** A: Do not use this ink in a fountain pen. This ink has pigments - think of tiny granules of pigment suspended in water. Those granules will clog a fountain pen feed over time. True fountain pen inks have no floating particles. This ink is for dip pens (no ink reservoir, just dip and write) or brush painting only. **Q: Can this be used on smooth bristol paper? I read that sumi ink only adheres to rice paper, but I'm not sure about the validity of that claim.** A: Well, I've used it on smooth bristol paper, as well as a number of other types of paper and had no problems at all when it comes to the ink adhering to any of them. **Q: Can this ink withstand erasing?** A: Light erasing, yes **Q: Can i put this in a bingo dabber ? and use for poster boards? also if i paint over it would it seep through ?** A: I wouldn't put it in a dabber for Bingo. It's Chinese liquid stick ink. You want something that is water soluble. Depending on the paint over ink, it might seep through. Mainly a calligraphy/drawing ink. ## Customer Reviews ### ⭐⭐⭐⭐⭐ Good standby ink. *by R***A on January 3, 2026* This is the ink I use in the Comics classes I teach. It's economical, and it is pretty much waterproof when dry so you can use water color with it. You can't do a big wash of yellow over a black area, but if you stay within the inked lines you won't get any bleeding. I've used this ink for years. It doesn't contain a lot of glue or shellac like binders so it doesn't gum up my brushes the way Higgins or other india ink can, even with the best of washing practices. ### ⭐⭐⭐⭐⭐ Outstanding product. *by T***R on June 23, 2026* Outstanding product; real quality ink for Sumi-e ### ⭐⭐⭐⭐⭐ MARVELOUS FOR YOUR ART, HAZARDOUS TO YOUR HEALTH *by P***N on June 23, 2014* If one is to believe the manufacturer -and I strongly advise you to do so- this ink is drawing hemlock: toxic to inhale, poisonous to taste, irritant to the skin, and unlike indian ink, not waterproof nor slow to dry. On its plus side, the stuff is black as night, and flows through the pen nib like silk between your fingers, producing the thinnest hairlines or the thickest strokes desired. Buy it in small bottles, or get an inkwell and fill it regularly. Ventilate your studio while using it, and clean your pen or brush thoroughly after use, for once solidified, it cakes into lumps quite difficult to remove. ## Frequently Bought Together - Yasutomo Yasutomo Sumi Ink Japanese Bokuju Black 12 oz - Yasutomo Rice Paper Roll 11" x 60' - Yasutomo Bokuju Liquid Ink - 12oz Sumi Ink for Calligraphy and Artwork - Black Drawing Ink for use with Japanese Ink Brushes and Dip Pens --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.jp/products/4099838-yasutomo-black-sumi-ink-bokuju-12-oz](https://www.desertcart.jp/products/4099838-yasutomo-black-sumi-ink-bokuju-12-oz) --- *Product available on Desertcart Japan* *Store origin: JP* *Last updated: 2026-08-01*