We believe that the core of making jeans = making denim

We focus on all processes that involve making jeans - choosing cotton, spinning, dyeing, and sewing.

Our selvedge denim fabric is made by old fashioned power looms.

In order to weave denim that does not impair the characteristics of the material cotton, better fit, and realizes natural and beautiful color fading, it is necessary to use an old fashioned power loom that weaves at a reduced speed and as little tension as possible. JAPAN BLUE JEANS continued to particular about this old fashioned power loom 'TOYODA GL-9'.

Looms that have already disappeared in modern times are not available anymore.

We gather old models and repair them.

To produce denim with a naturally uneven surface.

That is genuine 'JAPAN BLUE JEANS' denim.

We acquire high-quality cotton from various countries

to spin yarns much to the characteristics of each cotton in the world.

Original yarn that maximizes the goodness of cotton is wonderful textile aging.

In order to further enhance the personality of carefully selected cotton, it is spun into yarn.

And the number of revolution of mechanical parts called cams is adjusted in 0.1-second units to create texture and uneven shape.

Fine-tune it so that the texture is as consistent as possible.

By stabilizing the unstable cotton as much as possible, it will lead to dyeing and weaving.

An essential part of jeans aging is the white core of the thread.

It is a dyeing method called 'rope dyeing' that dyes while touching the air.

JAPAN BLUE JEANS focus that rope dyeing affects the aging of jeans.

As a denim maker, we always struggle with the latest dyeing technology and never forget our passion for innovation.

We think that the texture of domestic jeans in the 1960s, the unique twisting of the hem and wrapped seams, and the puckering are the tastes, and are important factors for long-lasting use of jeans.

We use a vintage sewing machine 'Union Special'.