Optical brightener OB-1 for refrigerator

Optical brightener OB-1 for refrigerator
Optical brightener OB-1 for refrigerator
Yellow Green
Color shade
400-800 mesh
10kg/25kg per fiber drum
Shelf Life
2 years
by sea or by air
water or solvent
Optical brightener OB-1 is applicable to the whitening of polyester fiber, nylon fiber, polypropylene fiber and other chemical fibers. 2. It is suitable for whitening and brightening polypropylene plastic, rigid PVC, ABS, EVA, polystyrene, polycarbonate, etc. Optical brightener OB-1 can also be used for whitening plastics such as ABS, PS, hips, PA, PC, PP, EVA and rigid PVC. Adding OB-1 to nylon fiber, nylon and polyester will also significantly improve the whiteness. After adding OB-1 to the recycled polyester fiber waste, bottle material and chips, the recycled material will appear whiter, and the chromaticity of different recycled materials will become more consistent.

Used in conventional polymerization of polyester and nylon.

OB-1 is especially suitable for whitening plastic products formed at high temperature


Without the help of optical brightener, the plastic shell of household appliances turns yellow quietly

The refrigerator is the most commonly used additional appliance in our life. I don't know when the refrigerator shell we use every day began to slowly put on the shell of the years. It turned yellow. Is he really old? I have only bought a refrigerator for two years. How can it turn yellow? This may have something to do with the fence.

In order to save costs, the manufacturer may add a small amount of fences to the refrigerator shell or not. With the decay of optical brightener, the original white and beautiful plastic began to turn yellow, looking so dirty.

For customers, they lose the experience of using refrigerators or other household appliances. For manufacturers, they lose their brand image and market competitiveness.

Optical brightener OB-1 method dosage:

1. As a whitening tool for PVC and PP recycled materials, the amount of profile added is about 230 grams per ton, the granulation of general recycled materials is about 500 to 700 grams, and the chemical fiber plant is about 450 grams per ton.

2. Whitening and brightening of polypropylene plastic, rigid PVC, ABS, EVA, polystyrene, polycarbonate, etc

The addition proportion shall be determined according to the new and old raw materials.

3. The addition amount of color masterbatch is between 3kg and 10kg per ton.

The whitening agent OB-1 can be fully mixed with the materials at a weight equivalent to 0.01-0.05% of the weight of plastic or polyester particles before the molding and processing of various plastic products or before the polyester fiber drawing.


Optical brightener OB-1 is yellow   crystalline powder

Melting point:



Insoluble in water, odorless, stable   performance The maximum absorption wavelength is 374nm It has strong   fluorescence, and the fluorescence emission wavelength is 434nm,

Chromatic light

Bright blue bright white light   (similar to the standard)




Passing 100 meshes


It is mainly used for whitening   polyester stock solution, especially for whitening polyester fiber and   polypropylene fiber, and also for whitening plastic products.

usage method

Generally, the addition amount is   0.02- 0.05% (in proportion to the weight of raw materials) and an appropriate   amount is added or subtracted according to the whiteness requirements.

White: add 30-50g to 100kg material


25kg paper barrel, lined with plastic   bags or packed according to user requirements

keep in storage

Store in a cool and dry place away   from light for two years.

matters needing attention

1. the product information is only for   reference, research and identification, and the company does not assume the responsibility   and patent disputes arising therefrom.

2. if you have any technical or use   problems, please contact us in time.

OB-1 manufacturer and R & D Center

After years of accumulation, we have become a chemical enterprise integrating scientific research, production and trade, specializing in the production and processing of various optical brightener OB-1 and its intermediates. The company has a scientific research team composed of professors and fine chemical professionals. Technicians with high professional titles account for more than 25% of the employees. The company has continuously researched and developed more than 30 varieties of plastics and printing and dyeing whitening agents. The quality has reached the advanced level of similar products in the world and is widely welcomed by users at home and abroad.

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