Quality Inspection for Whitening Agent - Optical Brightener BA – Subang

Structural formula

C.I.:113

CAS NO.:12768-92-2

Molecular formula: C40H42N12Na2O10S2

Molecular weight: 960.94

Appearance: light yellow uniform powder

Shade: blue purple light

Performance and characteristics:

1. Strong fluorescence, good whitening effect, and good light resistance.

2. It is anionic and can be bathed with anionic or non-ionic surfactants.

3. Resistant to perborate and hydrogen peroxide

Application

It is mainly used for the whitening of paper pulp, surface sizing, coating and other processes. It can also be used for the whitening of cotton, linen and cellulose fiber fabrics, and the brightening of light-colored fiber fabrics.

Instructions

1. In the paper industry, use 20 times the amount of water to dissolve the material and add it to the pulp or coating or surface sizing agent. The conventional dosage is 0.1-0.3% of the absolute dry pulp or the absolute dry coating.

2. When used for whitening cotton, hemp and cellulose fibers, add the fluorescent whitening agent directly to the dyeing vat and dissolve it in water before use. Dosage 0.08-0.3% Bath ratio: 1:20-40 Dyeing bath temperature: 60-100℃.

Transportation

Handle with care, moisture and sun protection.

Storage

Store in a cool and dry place away from light. The storage period is two years.