HAGIHARA INDUSTRIES INC. - Inheriting the technology of tatami mat making and challenging a new era of blue sheets with the unique technology "Flat Yarn."

萩原工業の吉田さんと矢木さん

Interview with the Management Planning Department of HAGIHARA INDUSTRIES INC.

HAGIHARA INDUSTRIES INC. continues to evolve with unique technology rooted in the community.
What thoughts and ideas are behind their business?

We spoke with Yoshida Junichi and Yagi Tatsu from the Management Planning Department of HAGIHARA INDUSTRIES INC. about the company's origins and initiatives.

The technology supporting HAGIHARA INDUSTRIES INC.: "Flat Yarn"

Yoshida and Yagi from HAGIHARA INDUSTRIES

Please tell us about HAGIHARA INDUSTRIES' business.

Yoshida (no honorifics)

The most recognizable product of HAGIHARA INDUSTRIES is the blue sheet, but it accounts for less than 10% of total sales, and the company has a variety of other products.

For example, they handle various products that support daily life and industry, such as sandbags, flame-retardant, soundproof, and mesh sheets, balchips for reinforcing concrete, and raw materials for adhesive tape.

Concrete reinforcing agent 'Balchip' provided by HAGIHARA INDUSTRIES
Concrete reinforcing agent 'Balchip' provided by HAGIHARA INDUSTRIES

Yagi (no honorifics)

Additionally, they manufacture and sell raw yarn for artificial turf used in soccer fields and tennis courts, as well as flexible container bags used for transportation and storage.

Artificial turf provided by HAGIHARA INDUSTRIES
Artificial turf provided by HAGIHARA INDUSTRIES

Please tell us about your main products, the blue sheet and flat yarn.

Yoshida

Few people have had the chance to closely examine a blue sheet, but it is actually a "woven fabric."
Originally, the parent company, Hagiwara Shoten, was weaving rush grass to make tatami mats in Kurashiki and Hayashima, but they replaced it with petroleum-derived materials, which is how it all began.

Yagi explaining about flat yarn
Yagi explaining about flat yarn

Yagi

The material used for the blue sheet is polyethylene.

This is cut into strips like film and then stretched thin while applying heat, resulting in a strong and flat thread.

Strip-shaped (slit) film that becomes flat yarn
Strip-shaped (slit) film that becomes flat yarn

This is the technology that HAGIHARA INDUSTRIES values: "Flat Yarn".
By weaving this flat yarn and going through a waterproof lamination process, HAGIHARA INDUSTRIES' blue sheets are created.

In other words, the technology of tatami mat making in Kurashiki has been transformed and is now utilized in products used worldwide.

About the company's uniqueness

Yoshida and Yagi from HAGIHARA INDUSTRIES

There may be other companies in Japan and abroad that manufacture blue sheets.
What are the strengths and advantages unique to HAGIHARA INDUSTRIES?

Yoshida

In fact, we are currently the only company manufacturing blue sheets in Japan.

While other companies might be able to produce similar products, this industry has already matured, and the market is shrinking. Due to reasons such as unprofitability, domestic competitors have withdrawn.

Yagi

In their place, overseas manufacturers from countries like China and Vietnam have entered the market. While overseas products are cheaper, they often compromise on quality.

For short-term use, they may be acceptable, but when exposed to sunlight and ultraviolet rays, they deteriorate, leading to cases where they fail within months when used to cover roofs during disasters.

Our products are designed to be strong and weather-resistant, ensuring they can be used safely for a long time even in such situations.

Manufacturing inevitably has aspects that cannot overlook environmental issues. Please tell us about HAGIHARA INDUSTRIES' efforts and innovations regarding the environment.

Yoshida

HAGIHARA INDUSTRIES is promoting a horizontal recycling project for blue sheets called "Re VALUE+."

HAGIHARA INDUSTRIES recycling
Image provided by HAGIHARA INDUSTRIES

This initiative involves collecting used blue sheets and regenerating them into new blue sheets. Until now, most blue sheets have been incinerated.

Collected blue sheets by HAGIHARA INDUSTRIES
Image provided by HAGIHARA INDUSTRIES

The reason is that it has been difficult to maintain quality when reusing raw materials. Stabilizing the quality of regenerated pellets (processed into granules) has been a significant challenge.

Yagi

As the top manufacturer of domestic blue sheets, HAGIHARA INDUSTRIES has been promoting this project to solve this challenge. Utilizing the strengths of having a machinery product business and collaborating with various companies, we began full-scale operation of the recycling line in June 2025.

Yoshida

Products made from petroleum as raw materials require consideration for the environment.

That is why we want to contribute to reducing new resource extraction and energy consumption, as well as CO₂ emissions and other environmental burdens through this initiative.

The reason why blue sheets are "blue"

HAGIHARA INDUSTRIES blue sheet

By the way, why are blue sheets blue?

Yoshida

Actually, it was originally "orange."
At that time, there were rumors that the orange pigment contained a harmful substance called "lead yellow."

Therefore, they switched to "blue" as a safer color. Additionally, there are other reasons as follows:

  • Excellent weather resistance
  • In the 1960s, blue raw materials were widely used in resin products like buckets and hoses, making them relatively inexpensive to procure
  • They do not contain harmful substances, allowing for a safety appeal
  • They are the same color as the sky and sea, making them less likely to spoil the scenery

These backgrounds led to the establishment of the name "blue sheet." While the impact of ultraviolet rays on weather resistance is significant, we do not have precise data on it.

Yagi

There are also color variations of the same polyethylene material, such as silver, green, and orange, and there are even highly functional sheets with heat-shielding and transparency. Recently, earth-colored sheets have also been added to the lineup for leisure use. Additionally, the range of sheet processing is broad, and we can create box-shaped products with the desired fabric.

We have also introduced large printing machines, so we can produce photo-printed banners starting from just one piece.

Health management expanding from the company cafeteria, initiatives that support employees and the community

HAGIHARA INDUSTRIES company cafeteria

During the interview, we saw the company cafeteria. Please tell us about your initiatives regarding employee health management.

Yoshida

Our president has declared "health management," and we are working on creating a workplace where employees can work energetically.

In the company cafeteria, the company covers half of the meal costs, allowing employees to enjoy hearty warm meals at reasonable prices, while also serving as an opportunity for interaction across departments, deepening internal communication.

HAGIHARA INDUSTRIES company cafeteria
HAGIHARA INDUSTRIES company cafeteria

Yagi

We have also established systems as part of work style reforms, such as initiatives for smoking cessation and mental health measures through stress checks, creating an environment that considers the mental and physical health of employees.

Finally, please give a message to the readers.

Yoshida

Many may know our company name from commercials, but they might not be aware of what kind of business we conduct.

Through this article, I hope readers will understand that a company rooted in Kurashiki is evolving the technology of tatami mat making into a modern form and contributing to the community and society.

Yagi

We will continue to leverage our technological capabilities and advance our environmental initiatives and product development. We aspire to be a company that continues to grow together with the community towards the future.

Conclusion

What strongly impressed me during the interview was that HAGIHARA INDUSTRIES is a "global company rooted in the community."

While blue sheets are essential products during disasters, there are few opportunities to be aware of their quality and background. However, in reality, they continue to challenge themselves while utilizing technology originating from Kurashiki and considering the environment and the community.

During the exchange of business cards at the interview, the words "Hami dase, Ami dase" engraved prominently on the card were very striking.

HAGIHARA INDUSTRIES INC. slogan
Image provided by HAGIHARA INDUSTRIES INC.

The attitude of creating new value without being bound by common sense was also felt from the atmosphere of the workplace and the words of the employees.

Furthermore, the phrases embedded in the commercial song, such as "MAKE YOUR HAPPY LIFE" and "Towards a future that makes your heart dance," convey a desire to share joy with the town of Kurashiki and its people.

What kind of future will HAGIHARA INDUSTRIES INC. weave from now on?
As someone living in Kurashiki, I hope for their progress.

Data of HAGIHARA INDUSTRIES INC.

HAGIHARA INDUSTRIES INC. entrance sign
Organization NameHAGIHARA INDUSTRIES INC.
IndustryManufacturing and sales of industrial machinery using synthetic resin fibers "Flat Yarn" made primarily from polyethylene and polypropylene, and related products such as slitters that apply Flat Yarn technology.
Representative NameAsano Kazushi
Year EstablishedNovember 29, 1962
Address1-4 Nakado, Mizushima, Kurashiki City, Okayama Prefecture
Contact086-440-0860
WebsiteHAGIHARA INDUSTRIES INC.

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This article was written by a citizen writer
Matsumoto Takashi
taka.

Residing in Kurashiki City. For 20 years, I have conveyed the charm of travel as a tour conductor in tourist cities across Japan and around the world. In the future, I will share the charm of my beloved hometown, Kurashiki, as a writer.

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