Intermediates (Brightening)
 
1,3-Propasultone

2-Thiobezimidazole

Acid Copper Powerful Brightening Stage

Dimethyl Formamide Sodium Sulfoacid

Phenyl Disulfidepropane Sodium Fulfoacid

Poly Vinyl Lmino-alkylate

Polydipropylsulfide Sodium Sulfoacid

Tetrahydro Thio-Ketone

Thiazolinyldithiopropane Sodium Sulfoacid