Optical Brightener BA-L

C.I.113  CAS:12768-92-2

STRUCTURE:

MOLECULAR FORMULA: C₄₀H₄₂N₁₂O₁₀S₂Na₂

MOLECULAR WEIGHT: 960.94(As International relative Atom Mass 2005)

MAX UV ABSORPTION WAVELENGTH: 348 nm

EXECUTIVE STANDARD:HG/T3990-2007

SPECIFICATIONS  

PROPERTY:

The optical brightener BA-L is acid-resistant, alkali-resistant, and has much better whitening effect than VBL at PH 4.5-7. Belonging to anionic type, it can be used in the one bath with anionic or nonionic surfactants.

APPLICATION:

Mainly applied to whiten paper pulp, surface sizing, coating and also applied to whiten cotton,linen and cellulose fiber as well as cellulose fabrics, and to brighten light-colored cellulose fabrics.   

PROCEDURE :

1. Being used in paper-making industry, add them into the paper pulp,coating solvent and surface gluing slovent. Usually dosage: 0.3-0.9% on dry pulp and dry dope.                                              

2. When whitening of the cotton,hemp or cellulose, directly adding the BA-L into the dye vat, the dosage:0.25-0.85%, bath ratio:1:20-40, the dying temperature: 60-100℅

PACKAGE:

1000kg, 200kg plastic drum or for the special demand

TRANSPORTATION:

Should be handled carefully, avoid sunlight and moisture

STORAGE:

Should be stored in cool,dry and ventilate place, and storage period should not exceed 6 months at room temperature