Diaminostilben disulfonic acid derivatives (Tera Sulphonic acid)
Appearance : Yellow powder
Ionicity : Anion
Dyeing shade : Neutral
pH : 8-10
It’s suitable for Optical Brightening Agent on pulp & paper, cotton. Its affinity is good and primarily for coating application, have excellent acid and alkalis stability, and good stability to peroxide. The quality is counter of Blankophor BBU.
1. Pulp brightening Process:
Dosage: OBA 220 0.1-1.2% o.w.f.; it put into pulp solution.
2. Surface sized:
Dosage: OBA 220 1-20 g/l; it can use together with CMC, PVA, starch, anionic and weaker cationic paper size.
Dosage: OBA 220 0.1-1.4%; it can use any phase as diluent OBA solution in the process of making the coating.
Detailed process is according to customer’s request.
Storage & Packing:
Sealed in storage, keeping date is 12 months under room temperature.
25kgs carton box.
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