Blue Natural Sashiko Thread Cover

Purple & Blue Natural Sashiko Thread

Another update of our beautiful “hand-dyed” Natural Sashiko Thread. This time, we are offering purple and blue natural Sashiko Thread.

Keiko Futatsuya, the Sashiko artist as well as Natural Dye artist, successfully continues her Natural Dye with “Logwood” and “Lac Dye.” Including “Tangala,” these 3 requires attentive process to keep offering the similar colors to provide with the same color numbers. We dye about 10 skeins of Sashiko thread every dye pots. Since Sashiko thread are hand-dyed with Natural Dyes, the color outcome is slightly different. However, we succeeded to come up with the “similar-enough” colors to provide as the product.


Just stunning Natural Blue and Purple.


We are proud of offering so many varieties of natural dyedSashiko Thread including Indigo & Kakishibu. They are just stunning colors.

They are all available on this website.

Blue Natural Sashiko Thread

Blue Natural Sashiko Thread

Blue is one of the most difficult colors to dye. The Japanese blue with Natural Indigo is the most famous and popular color. We try to come up with other blue, which is a bit different from Bold Indigo Blue, with Logwood. This color requires multiple steps to succeed. Enjoy the kind Blue only Nature create.

Blue Natural Sashiko Thread Cover



Purple Natural Sashiko Thread

Stabilizing the Purple color from Lacdye was one of the biggest challenges in 2017. We had so many shades of Lac Dye (and therefore so many numbers assigned), and then finalize the story with 4 shades available for sale. Enjoy these miracle purple.



Beige and Gray Natural Sashiko Thread

Besides Purple and Blue, beige and gray are important colors in Sashiko Stitching. Logwood and Tangala happen to create the beautiful beige and gray by using the different catalyst.

Enjoy these natural colors to match your Sashiko project.




Sashiko Thread Sample Photo

Sashiko Thread Sample Booklet | All Natural Dye

Sashi.Co & Keiko Futatsuya has been producing the Natural Dye Sashiko Thread for almost 3 years. We receive many positive reviews, and we are confident in what we make. At the same time, we receive many requests to provide a color sample for our Natural Dye Sashiko Thread Collection. Finally, I made several of Sashiko Thread sample Booklets. They are available online now! ~ Sashiko Thread Sample Booklet | All Natural Dye.


Sashiko Thread Sample Booklet


A price for the Sashiko Thread Sample Booklet is $20.00 !?

I set a price of $20.00 for the booklet. I know. It is expensive for a hand-made booklet.

The booklet itself doesn’t look like the one with $20.00 value. It is hand-made and we use all the Natural Dye thread so I hope it doesn’t sound like I am ripping you off. By its look, I would say $5.00 ~ $10.00 would be a reasonable pricing.


Then, why did I set up this pricing?

The answer is that I would like to sell (give) this booklet to someone who sincerely appreciates this booklet. Once I made the sample. In past, I have spread the Sashiko Sample Booklet to many people, pretty much everyone who wanted to have. It sold out very quickly, and I needed to ask customers to wait. One day, I found a sample booklet in a trash can…


Ideally speaking, I even would like to give away it free. It is my pleasure to share our Natural Dye Sashiko thread; what we are proud of.


After thinking a lot of the issues, I come up with the idea. I hope this deal makes sense to you.


Here is a deal I come up with.

We will not reimburse it and more

I will send you $39.00 store credit when the booklet holder purchases more than 15 skeins of our Natural Dye Sashiko thread in their life-time history. When I receive the order of this booklet, I will write down your name, and you will be eligible for the deal.

No need to purchase 15 skeins at once. I will send you the credit when you purchase the 15th thread. It can be anytime, even a few years later. No expiration date. I will count every purchase you made in past if you have already made a purchase from us.


We will reimburse the price of $20.00

After that, you will get $19 discount when you purchase more than 15 skeins of Natural Dye Sashiko Thread.


I hope this deal will make sense to you.

On top of this, Sashiko Thread Sample Booklet is a great sample book to keep in your drawer if you are in love with Natural Colors. With almost 50 colors we have created, we want you to get the color your project deserves!


Thank you!



Kakishibu Dyed Thread

Kakishibu Dyed Thread | Hand Dyed with Persimmon

Squeezing the green (non-ripe) persimmon to get the juice. Fermenting it to transform the persimmon juice to a dye liquid. Smells are really strong. Controlling the condition is a big responsibility. After these steps, we can finally enjoy the natural color from Persimmon Tannin dye. We are happy to present our new Kakishibu Dyed Thread for the Sashiko stitching. The same perfect design (twist) for the Sashiko purpose, with the beautiful natural color from Kakishibu.

*Kakishibu (柿渋)= Persimmon Tannin in Japanese


Kakishibu Dyed Thread Covor


4 Shades of Kakishibu Dyed Thread are available

These 3 shades and 1 variegated color are available for sale! Enjoy the natural color in your Sashiko project.

  • K1 | Gold Yellow
  • K2 | Dark Grey
  • K3 | Greyish Brown
  • K4 | Persimmon Tannin Variation / Variegated


Kakishibu Dyed Thread 4 Shades availability


Kakishibu Dyed Thread K1 Kakishibu Dyed Thread K2
Kakishibu Dyed Thread K3 Kakishibu Dyed Thread K4


Kakishibu Dye Professional

Ever since Sashi.Co & Keiko Futatsuya started challenging to dye Sashiko thread with Natural materials, Indigo Blue and Kakishibu Gold kept attracting us. The Kakishibu dye process requires at least 3 major conditions to make it successful.

  1. A lot of, tons of pure water
  2. Large space enough to prevent odor issues
  3. Skillful artisans to follow the strict dye process

It was very challenging to successfully achieve the Golden color Sashiko thread with ourselves. Then, in 2017, we got a fortune to come across the Kakishibu Dye Professionals in Gifu Prefecture, Kaki-Zanmai. They use the locally grown persimmon and follow the steps I illustrated in the first paragraph of this article. In their studio, people can dye what they would like. We asked them to dye our Sashiko thread, and we could add the Kakishibu color to our Sashiko Thread collection.


Here is a note from their Japanese website.


Kakishibu Dye

We provide a special Kakishibu dye made from “Izira Persimmon.” This Izira Persimmon is only produced in Yamagata city, Gifu Prefecture. The Izira Persimmon contains a lot of tannin, and had been well known for Kakishibu Dye. Natural & Local product for Kakishibu Dye. Kakishibu dyed product such as threads, fabrics, and papers are believed to have these functions; Anti Corrosion, Insect repellent, Antibacterial, Deodorant (Eliminating Odors), and Waterproofing.


Kakishibu Fabric, as well.

We have asked to dye the fabric as well. It is too costly to sell online for now, but we are happy to share the photos if you are interested. Please contact me so I can take photos of beautifully dyed fabric for Sashiko purpose. We are working on a project of Sashiko art piece with using Kakishibu Dye Sashiko Thread and Kakishibu Dye Cotton Fabric. Wait for the update 🙂




Natural Indigo Dyed Thread Bobbin

Natural Indigo Dyed Thread | Perfect for Sashiko

It requires experience in enjoying natural dyes. I am happy to share our accomplishment; Natural Indigo Dyed Thread. As always, it is the thread designed for Sashiko. We successfully dyed with natural indigo (the product of India) Perfect selection for your Sashiko project.


Natural Indigo Dyed Thread


Two Colors of Beautiful Indigo Blue is available

These #A1 and #A2 Indigo Blue Colors are available for sale! Enjoy the beautiful natural colors in your Sashiko project.

Indigo Dyed thread Comparison


A1 Natural Indigo Dyed Thread A2 Indigo Dyed thread

Several ways to dye thread to Indigo Blue

We understand that the “Indigo” as the dark blue with this definition below.

  1. A blue dye obtained from various plants, especially of the genus Indigofera, or manufactured synthetically.
  2. Any of numerous hairy plants belonging to the genus Indigofera, of the legume family, having pinnate leaves and clusters of usually red or purple flowers.
  3. A color ranging from a deep violet blue to a dark, grayish blue.

1 – Benefit of Industrialization

The most common way to dye thread to Dark Indigo Blue is to use the synthetic dye. They usually manufacture and dye thread synthetically with using machines. Thanks to the industrialization, we enjoy the benefit of the reasonably priced thread. The result is not as “natural” as the other Indigo dye thread, the color is very similar. In our Sashiko Thread Collection, #15 is the Indigo Blue Colored Thread (dyed synthetically.)

Mono Color Sashiko Thread Dyed Synthetically Indigo Blue
Blue Sashiko Thread Collection dyed by synthetic dyes. #15 – Indigo Blue is the top one.

2 – Benefit from Indigo Researchers

One of Natural Dye suppliers we trust created a wonderful dye; a combination of natural and synthetic dye with ease in the process. There is no requirement of fermenting the dye liquid nor controlling the temperature. Although we do not carry the thread dyed by this amazing half-natural & half synthetic dye since we focus on “natural” when creating our own thread, I have heard many good things about this renovated dye from Indigo researchers.


3 – Natural Indigo Dyes

The most beautiful way, in my opinion, to appreciate the Indigo Blue is to use the Natural Dyes and dye them by hands. In this page, we are introducing new Sashiko thread, as the Natural Indigo Dyed Thread. Sashi.Co & Keiko Futatsuya prepared the liquid from powdered Natural Indigo, and let the liquid fermented in the controlled temperature, then dyed carefully by hands, only 10 skeins of thread each time. For Natural Indigo Dyes, there are mainly two methods/materials available in our capability.

Natural Indigo Dye Thread Process
Keiko dyes thread carefully by hands.


A – Indigo Dyes from India

It requires the regular controlling process, but easier than the option B. The Indigo produced in India made the Natural Indigo Dye process available for non-professional Indigo dye artists. It requires experience and strict condition control. However, when you follow the procedure appropriately, the result is very rewarding. As of 2017 Summer, we used this Indigo Dye from India to create this beautiful Indigo Blue.

Natural Indigo Dye Thread Product of India

B – Sukumo in Japanese traditional Indigo Dye

In Japan, people followed the beautiful process of making “Japanese-Indigo-Blue.” This dyeing process with Sukumo requires a lot of experience, deep knowledge, and a long time to invest. Even in Japan, there are only a few artists/artisans who follow the traditional Indigo dyeing. I know one of them and my head is down for their effort and beautiful result.


Our next Step to have Natural Indigo Dyed Thread


Our next step is, of course, to dye our thread with the Japanese traditional way to create the Japanese Indigo Blue.

We are not capable of creating our own Sukumo and Natural Indigo dye from the scratch, but we could purchase the materials and follow the procedures, then practice. We do not know how long it would take to make them as the products. However, as we have been acheiving so many goals already, we will make it happen as well. In fact, we started practicing dyeing the thread with Sukumo after we successfully produced the A1 & A2 Indigo Dyed sashiko Thread. Please wait for the update!