Sakai Wazarashi Dyeing Experience | Discover 400 Years of Japanese Textile Craftsmanship

• Table of Contents
• Wazarashi: A Traditional Textile Industry Still Thriving in Sakai, Osaka
• Take a Closer Look at the Tour
• Hands-on Dyeing Experience
• Factory Tour: Inside the Craft of Wazarashi
• Tour Details
• How to contact us

Wazarashi: A Traditional Textile Industry Still Thriving in Sakai, Osaka

With a history spanning more than 400 years, Wazarashi is a traditional industry rooted in Sakai, Osaka—an area long known as one of Japan’s leading centers of cotton bleaching. Wazarashi refers to cotton fabric that is carefully boiled and bleached to remove impurities while preserving the natural softness of the fiber. Since the early Edo period, production has flourished along the Ishizu River, where abundant water resources supported the craft.
Founded in 1931, this company carries out every step of the process in its own factory, from Wazarashi production to dyeing and cutting. By slowly boiling the fabric in large cauldrons for approximately 35 hours, the cotton retains its natural texture, resulting in a remarkably soft and gentle feel.
By combining time-honored techniques with ideas that suit contemporary lifestyles, the workshop continues to share the appeal of Wazarashi through a variety of products and hands-on experiences. Through factory tours and dyeing workshops, visitors gain a firsthand understanding of Japanese craftsmanship and the cultural depth of traditional manufacturing.

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Take a Closer Look at the Tour

Below is an overview of the tour experience and its itinerary:
Hands-on Dyeing Experience → Factory Tour

Hands-on Dyeing Experience

The tour begins with a traditional Japanese dyeing workshop, where participants create their own tenugui (Japanese hand towel).
By choosing from six dye colors and experimenting with different folding and dyeing techniques, each guest produces a one-of-a-kind textile. This program offers an accessible introduction to the creativity of Japanese manufacturing and the depth of traditional dyeing culture.

The dyeing process is simple and clearly guided by staff, making it easy for first-time participants to enjoy the experience with confidence.
Patterns vary depending on folding methods—such as triangular or isosceles shapes—and the time the fabric is immersed in the dye, ensuring that no two pieces are ever the same.
The moment the fabric is dipped into the dye naturally brings a sense of focus and anticipation, highlighting the hands-on nature of the craft.

After dyeing, the fabric goes through washing, spinning, and drying. The moment the cloth is unfolded, vivid patterns emerge—often exceeding expectations—making this reveal one of the most memorable parts of the experience.
As colors blend and overlap organically, each finished piece becomes entirely unique, and taking time to appreciate the result is a meaningful part of the process.

Finished tenugui can be taken home the same day, making them a meaningful souvenir or personal keepsake. Both functional and decorative, the textile allows participants to incorporate Japanese craftsmanship into everyday life.
This experience offers a rare opportunity to appreciate the creativity of making things and the cultural depth of Japanese dyeing traditions through all five senses.

Factory Tour: Inside the Craft of Wazarashi

From here, the tour shifts focus to the company’s advanced techniques and production processes, refined over generations. Visitors can observe the entire manufacturing flow up close—from the traditional boiling process that slowly prepares Wazarashi fabric, to roller printing for pattern application, and modern silk-screen printing using state-of-the-art equipment.
This rare opportunity allows guests to witness an active manufacturing site that is usually closed to the public.

One of the first highlights is the impressive sight of massive cauldrons used to boil Wazarashi fabric. During this process, cotton cloth is carefully packed into baskets and placed into large vats capable of holding fabric equivalent to approximately 50,000 tenugui—around 42 kilometers in total length.
While modern chemical bleaching can be completed quickly, traditional Wazarashi requires nearly three days, allowing impurities to be removed slowly while maintaining the fabric’s softness and natural quality.

When comparing the fabric before and after processing, the difference is immediately apparent. After being lifted from the cauldrons, the cloth becomes strikingly white, while the slow boiling process minimizes stress on the fibers, preserving the cotton’s natural softness and texture.
This hands-on comparison clearly illustrates the Japanese approach to manufacturing that prioritizes respect for materials.

The tour continues to the dyeing area, where visitors encounter a roller printing machine—now operated by only a handful of companies across Japan.
A key element determining the final quality is the blade used to remove excess dye from the rollers. Achieving consistent, clean patterns requires meticulous manual adjustment by skilled craftspeople, highlighting the indispensable role of human expertise alongside machinery.

Visitors can also observe the silk-screen printing process using modern equipment. By combining dyeing techniques refined by skilled craftspeople with contemporary printing technology, the workshop achieves delicate yet vivid expressions.
The integration of traditional methods with advanced machinery enables new forms of manufacturing that highlight the enduring appeal of Wazarashi.

The workshop also focuses on creating products that suit modern lifestyles, including gauze pajamas, scarves, and yukata. Utilizing the gentle texture and high breathability unique to Wazarashi, these items are comfortable for everyday use and can be enjoyed year-round.
Blending practicality with refined design, the products allow traditional Japanese textiles to become a natural part of daily life. Visitors can view the finished items on-site, and selected products are available for purchase the same day.

Tour Details

During the dyeing workshop, participants select their preferred color from six dyes and create a one-of-a-kind tenugui (Japanese hand towel). Finished pieces can be taken home the same day, and the sense of achievement gained through hands-on experimentation and careful refinement is a highlight of the experience.
The factory tour offers an up-close look at traditional Wazarashi production methods. Visitors gain insight into the dedication of skilled craftspeople and the underlying philosophy of Japanese manufacturing—moving beyond simply “making” or “seeing” to understand why traditional industries continue to thrive today.

・Price: From JPY 3,600 per person (tax included) Prices vary depending on the course
・Group Size: 2–40 participants　　
・Duration: Approximately 60–90 minutes
・Program Includes: Factory tour and hands-on dyeing experience
・Booking: Reservations required at least two months in advance

By touching the fabric, feeling its gentle texture, and sensing the distinctive atmosphere of the production process, visitors experience the depth of Japanese manufacturing in ways that books and videos cannot convey.
This tour offers direct exposure to skills refined over generations, a deep respect for materials, and the core values that have shaped Japanese manufacturing. We welcome international study visits; please note that an interpreter is required.

How to contact us

1. Please fill out the necessary information in the form below and contact us.
2. We will contact you from "industrial.tourism@nankai.co.jp" within 3 business days.

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Please feel free to contact us for any enquiries about available dates or detailed tour information!