This is the content provided by the customer.

I soaked it in a bucket of water with about 2 capfuls of Klima for about 40 minutes, and the color did not fade at all.

First, here is a photo of the denim before it was soaked.

Next is after soaking.

The color remains strong.

The comparison photo on the right is the fabric that has not been pickled.
It doesn't change at all.
This is a great detergent.

By the way, at this time, I also soaked a shoulder bag made of brown duck fabric, although I didn't take a picture of it.

This is a photo of the dirty water at that time.

My shoulder bag hadn't been washed in a year and a half, so it was pretty dirty.

Denim seems safe to wash.
thank you.

 

The above was the content of the information provided by the customer.

I am truly grateful and grateful.

Also, I apologize for the delay in providing information even though you provided it earlier. .

As a side note, I happened to talk to someone who practices kendo about this product, and they were very interested in it, and even though it's a long-term test, they're testing the color fading.

Kendo uniforms are also dyed with indigo, and the color seems to fade with each wash.

If you think about it, the same applies to judo uniforms, so if you are using one, please give it a try.