we can easily find the post in internet regarding the process of ammonia finish. however, there is not many mill in china have the facility to process this finish as far as i know there is only 3 machine in china.
so what is the benefit of ammonia finish over the mercerize
1) better softness
2) better depth of color
3) better tone of color (it depends on the favor of customer), the denim shows in green tone in ammonia while the indigo shows red tone in mercerizing.
thanks to Easy Dragon (china fabric mill) to provide a denim (same color, same construction) applied in two differenent finish, so i can compare it partically (most of the post in internet , just provide theoretical information).
pls. see the pic. for the before wash, and after wash in 5 min.The ammonia finish denim did provide darker color, and have a more softhandfeel.















