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> Tel: 0086-519-88029576
> Fax: 0086-519-88029580
> E-mail: jane@erchem.com
> Add.: Rm.1106,Building
No.2,zhixing Business Plaza,No.25 North Street, Changzhou City,Jiangsu,Province,
Optical brightener BBU

The Details of "Optical brightener BBU"

Appearance:Light yellow uniform powder or granule
Fluorescent intensity:100±3(equal to E 370)
Max.UV absorption wavelength:350nm
Performance characteristics:
Bluish tone:Solubility in cold water:200g/L;Solubility in boiling water:300g/L;Common affinity to cellulosic fiber;Stable to oxide,hypochlorite,reducing bleach;resistant to alkali,hard water,but medium in acid.
Whitening of cotton ,viscose,it has good compatibility with resin finishing agent;
Whitening of surface sizing ,coating of paper sheets,paper;
Whitening discharging printing.
Recommended dosage:
Paper-making(absolute dry pulp):0.01-0.4%;
Surface sizing with starch,CMC,PVA:0.1-3g/L;
Coating with PVA ,CMC,starch:0.03-0.4%(compared to weight of coating);
Package:Fiber frum or PE bag(N.W. 20 or 25kg)