IntroductionITCHU-DO is a new brand of Japanese crafts created in 2009.
The brand’s peaceful beauty and variety of color designs are popular topics overseas as a never-before-seen type of Nanbu Ironware.
In addition, ITCHU-DO’s cast iron products, which are based on ease of use, are created with a sense of universality that is unaffected by trends, and we will continue to offer you ways to improve your lifestyle.
*At ITCHU-DO, prototypes are designed and created by a single designer.
|Artifact Name||Nambu Ironware|
Nanbu Ironware is a brand of cast iron products with nearly 900 years of history and produced mainly in the castle town of the former Nanbu Clan.
It is said that the casting industry flourished here due to the ease of acquiring materials for molds, including iron sand and charcoal as well as good-quality sand and clay.
In 1975, it became the first nationally designated traditional craft.
The Traditional Craftsman Profile
He is a successful craft designer, who works as a graphic designer, creating emblems for towns and schools etc...
He has won prizes in numerous design competitions as well.
The design for his teapot was acquired in 2004 by the MoMA (Museum of Modern Art in New York) for serving pots used in its cafe.
Production Process(Tea Pot)
- 1. Write out design idea.
- Freehand curves produce a distinctive warmth and presence that are difficult to express with a computer.
- 2. Create a prototype of the product out of plaster based on the design illustration.
- The quality of this prototype has a major influence on the quality of the final product.
- 3. Create a cast based on the prototype.
- A sand template, which will become the female die, is formed by pressing sand (silica sand) with the cast.
- 4. Pour molten iron (approx. 1,500℃) into the cast.
- The craftsman uses intuition to adjust speed and amount when pouring in the molten iron to ensure that it fills the cast uniformly.
- 5. Remove the iron kettle from the cast and clear off attached mold sand using abrasive blasting.
- 6. Shave carefully off protrusions and edges formed along the cast seams before the painting process.
- 7. Apply rust-preventing enamel to the interior surface of the teapot.
- Firing the teapot in an electric furnace after uniformly applying glaze results in a beautiful glassy finish.
- 8. Spray paint the outer surface.
- Excess color is wiped off, and the product is finished through a process of dry-wiping and polishing.
- Inspect carefully each product one-by-one, and finish by attaching the tea strainer and handle.
Lacquer BakingNatural lacquer is applied by heating the surface of the iron kettle to 250℃.
*This further improves heat resistance.
Origin of the Rust Prevention TechniqueThis rust prevention technique began to be used after the Great Morioka Fire in the Meiji period as it was discovered that iron kettles recovered from burned storehouses never exuded a metallic taste.
The difference between teapots and iron kettles●Iron kettles may be exposed to direct flame.
*The iron content that dissolves from iron kettles is considered healthy.
*The iron kettles are durable and long-lasting, and they develop more and more character the longer they are used.
●Teapots are treated with enamel on their inner surface.
*Please be aware that the teapots do not exude iron content as they have an enamel finish.
The Safety of Nanbu Iron TeapotsThe international inspection agency SGS has confirmed that the teapots are highly safe through elution amount testing for heavy metals such as lead, cadmium, etc.
・Be careful of burns as the iron kettle is extremely hot during and just after use.
・Use and store out of the reach of children.
・Be careful as the kettle may fall if stored in an elevated location.
・If the kettle will not be used for a long period of time, be sure to wipe off all moisture and store it in a dry location.
・Washing with cleanser and sponges may remove the rust-preventing oxide film.
・Only fill to the 8th gradation line. Do not use when full.
・Do not use flames so high that they protrude from beneath the kettle as it is dangerous.
・Adjust the strength of the flames during use as hot water may spurt out of the spout when boiling.
・Be careful as rapidly cooling the kettle may result in to formation of cracks.
・Do not use in microwaves.
・Do not use in dish washing or drying machines.