What is the pigment of the denim? is it harmful for body?
Garment fabric dyeing, dyes have national standards, if produced according to national norms, the general non-toxic harmless, faded color fastness is not necessarily harmful. Do not worry too much. If the use of unqualified dyes, the main injury is skin irritation, allergies and other phenomena, the skin will appear pimples, erythema, itching and other skin symptoms.
Mainly bromine indigo denim and vulcanized black denim. There is no harm to the body.
