Tochigi Leather
Crafted using full vegetable tanning, this traditional method utilizes natural tannins instead of chemical agents, preserving the integrity of the leather and the environment.
Tochigi Leather Co., Ltd
Founded in 1937 in Tochigi Prefecture, Tochigi Leather Co., Ltd is a distinguished leather manufacturing company specializing in cowhide leather tanned with vegetable tannins.
Renowned for its supple yet durable qualities, Tochigi Leather gains depth and character with age, earning admiration worldwide.
The tanning process requires substantial water, which the factory sources from groundwater. To ensure environmental sustainability, Tochigi Leather operates advanced water treatment facilities that purify wastewater before releasing it into rivers, reflecting their commitment to preserving nature.
Tochigi Leather's cowhide, tanned with full vegetable tannins, is celebrated for its supple and elastic texture—an unmistakable hallmark of their craftsmanship.
The tanning process transforms animal hides, a natural by-product of meat consumption, into valuable leather goods. By utilizing these hides fully, Tochigi Leather honors nature and animals, preserving resources and upholding the wisdom of generations past.
However, the supply of raw hides is increasingly unstable due to global population growth and changing dietary habits, making their work more vital than ever.
Animal hides, if left untreated, decay quickly. The tanner’s craft is to preserve these hides and give them new life through a meticulous process involving drying, cleaning, tanning with natural tannins, pressing, and dyeing.
This intricate process, which requires labor, precision, and care, is an act of reinfusing life into what might otherwise be discarded, creating leather that is both beautiful and meaningful.
Raw hides arrive at the factory preserved in salt. They are first cleaned—a demanding task requiring two men to manage the heavy, water-laden hides.
The hides are then immersed in 160 vegetable tannin pits, each containing a meticulously adjusted plant-based tannin solution. Over 20 days, this process gradually tans the hides without the use of chemicals, reflecting Tochigi Leather's commitment to natural methods.
The mimosa solution, central to Tochigi Leather’s vegetable tanning process, is made using a unique recipe developed over decades. Its careful preparation ensures the exceptional quality of the leather.
After tanning, the leather undergoes further refinement. It is coated, washed again, infused with natural fish oil, and stretched in a process called setting before being naturally dried. The drying process is carefully adjusted based on the leather’s thickness and the weather, ensuring optimal results.
After countless meticulous steps, the leather begins to take on the form we recognize in finished products. This transformation is a testament to the dedication and craftsmanship poured into every piece.
The leather tanning process requires significant amounts of water, particularly for washing and tannin pits. Tochigi Leather ensures all water used in the factory is purified before being discharged.
Large, multi-layered purification tanks use an aeration method to separate water from waste through bacteria and microorganisms. Enzymes are added to aid this natural process, which produces clean water that is safely returned to neighboring rivers.
The remaining waste, separated as nutrient-rich sludge containing lime and collagen, is repurposed as fertilizer for lime-favoring vegetables and as a soil conditioner in areas with severe soil contamination.
This cycle reflects Tochigi Leather’s philosophy of giving back to the earth, embodying true craftsmanship.
During a factory tour, Mr. Osozawa explained their approach to sustainable leather production:
"To achieve eco-leather certification, companies must adhere to strict regulations on chemicals, wastewater, and waste. However, at Tochigi Leather, we avoid using such chemicals altogether and purify wastewater in-house. That’s why we prefer not to call it ‘eco-leather.’"
His words reflect a deep respect for the environment and a commitment to honoring the wisdom of their predecessors.
At LIFESTYLIST, we are proud to support Tochigi Leather by commercializing and sharing their exceptional leather products.
We hope our LIFESTYLIST products will not only bring joy but also inspire more people to appreciate the natural materials and stories behind them.