Optical Brightener BA

Optical Brightener  BA (also known as fluorescent whitening agent 113) is an anionic, distyrene-bistriazine type fluorescent whitening agent. It appears as a uniform pale yellow powder and exhibits a bright bluish-violet fluorescence under natural light.

Anionic, resistant to PH4.5-11.

1. Intense fluorescence, excellent whitening effect, and good light fastness;

2. Easily soluble, good acid and alkali resistance, with significantly better whitening effect than VBL in the pH range of 4.5–7;

3. Anionic type, compatible for use in the same bath with anionic or nonionic surfactants.

Optical Brightener BA mainly used in pulp brightening, surface sizing and coating, etc, with high acid resistance. It is the first choice to produce paper of high brightness requirements.

Paper industry: Used for pulp whitening, surface sizing, and coating processes. It features fast dissolution and good acid resistance. Its whitening effect is particularly outstanding under acidic conditions of pH 4.5–7. It is claimed to offer better brightness improvement than the traditional VBL product, and is less prone to yellowing over time.

Textile industry: Suitable for whitening cotton, linen, silk, nylon (polyamide), and cellulosic fiber fabrics. It can also be used for bleaching light-colored fabrics

1.When brighten in pulp, optical brightener BA should be added before alum or cationic auxiliary agent; dosage: 0.05-0.4% (of absolute dry pulp).
2. In surface sizing, it can work with CMC, PVA, starch, or anionic or cationic synthetic sizing agent.
3. In coating, it can be used at any stage of coating production in the form of aqueous solution after dissolve.

10kg or 25kg/ fiber drums. It can be packed in other forms according to user's requirements.

Shelf life: not more than 24 months in the room temperature.

 

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