Product Details

Optical Brightener OB-1 CAS NO.:1533-45-5 is a kind of chemical  materials, has strong fluorescence. It is inodorous,can not dissolve in water.It gives products a bluish dye  making products look more white.It is different from albescent agent and Titanium Dioxide.

OB-1 have two appearance,one is green,another is yellow.As usual,OB-1 yellow price is higher than OB-1 green.This is because OB-1 yellow production capacity less than OB-1 green.

Appearance: Bright yellowish green crystal powder

molecular weight: 414

Molecular formula: C28H18N2O2

Melting point: 350-360℃

Maximum absorption wavelength: 374nm

Maximum emission wavelength: 434nm

Knitted bags are usually white or off-white in appearance. Manufactured from all kinds of  chemical plastics, it has strong environmental protection and strong recycling efforts. Whether the plastic woven bag is made of new materials or recycled materials, fluorescent whitening agents are indispensable additives.

Most common plastic woven bags are made of polypropylene. Because polypropylene has a regular structure and is highly crystalline, its melting point is high, up to 167 °C, and its rigidity, strength and apparency are better than polyethylene, but if it is produced with recycled materials, there are many impurities, and the appearance of the produced plastic woven bag is dull, it gives the impression of being old and yellow. At this time, if we want to improve the white brightness of the plastic knitted bag, we need to choose a suitable optical brightener.

For the production of plastic woven bags, it is recommended to use whitening agent OB-1, because plastic woven bags are usually produced at a high temperature, and whitening agent OB-1 is the most high temperature resistant among all whitening agents. If the melting point of the whitening agent cannot reach the production temperature of the plastic woven bag, the molecules of the whitening agent will be destroyed, thereby affecting the whitening effect. The fluorescent whitening agent OB-1 is undoubtedly a suitable product. It has good dispersion and low price. Like the plastic woven bag itself, the cost is low, and the price is usually not too high when it is sold. Choose fluorescent whitening agent OB. -1 would be more appropriate.

Package:

10kg/20kg/25kg per fiber drum

450kg/500kg/675kg per pallet

We can also customize the package according to our customers’ requirements.

FAQ

1.What's the lead time of optical brightener OB-1?

Optical Brightener OB-1 is our leading product,so we always have stock,so lead time is very fast,as usual in 2 days,we can ship the order out.

2.What’s the dosage of OB-1?

Optical Brightener OB-1 dosage is 200-500g per mt material.But different raw material and different formula need to adjust when using.

3.Does your company accept OEM or ODM?

Yes,we do.If you have specific requirement,we can do as per it.

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