Name: Optical Brightener BBU for paper industry
Brand: Raytop Chemical
Rating: 5 (5 reviews)

Optical Brightener can absorb UV light then emit visible blue light to reduce the yellowish and make the products more white.Optical Brightener for paper industry is one of the most important part of optical brighteners application.

optical-brightening- agents-textiles.jpg

Product Name	Optical Brightener BBU
CAS No.	16470-24-9
C.I. No.	220
Technical Index	Appearance:straw yellow uniform powder Brightness:similar to-quite low Intensity:100(conmpare with standard) Water content,% ≤:5 Insoluble matter in water,% ≤:0.5 Fineness(180um residue),% ≤:10
Properties and use:	Cationic distyrene optical brightener, with medium solubility in water and purplish blue fluoresoence,Use in pulp brightening, surface sizing and coating, etc, Can also be used to brighten cotton,T/C blends,fiax, polyamide fibers,and light-color textiles.
Application method:	Paper making: 1.When brighten in pulp, BA shouid be added before alum or cationic auxiliary agent;dosage;0.05-0.4%(of absolute dry puip). 2.In surface sizing,it can be used at any stage of coating production in the form of aqueous solution after dissolved. 3.In coating, it can be used at any stage of coating production in the form of aqueous solution after dissolved. Textile printing and dyeing: Dosage:0.05-0.4%(o.w.f), bath ratio:1:5-40, anhydrous sodium sulfate:5-20g/L, normal-temperature dyeing, dyeing temperature;60-100℃,PH:7-9. Packing: 25kg carton drum or iron drum lined with plastic bag.