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Optical Brightener KCB 367 CAS NO 5089-22-5 supply in Korea

The optical brightener KCB is mainly used for the whitening of synthetic fibers and plastic products. It also has a significant brightening effect on colored plastic products. It is widely used in plastic films, film molding materials, injection molding materials, etc. It has excellent whitening effect on polyolefin, PVC, foamed PVC, TPR, EVA, PU foam, synthetic rubber, etc. It can also be used for whitening of paint, natural paint, etc.

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  • Brand: Raytop
  • Appearance: Yellow Green
  • Purity: 98.5%
  • Color shade: Blue
  • Finess: 300 mesh
  • Package: 10kg/25kg per fiber drum
  • Shelf Life: 2 years
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Optical Brightener KCB 367 CAS NO 5089-22-5 product brief:

The optical brightener KCB for plastics is a superior upgrade product among many optical brightener at present. Blue-violet shade, excellent light resistance, suitable for all plastics, especially with strong whitening effect in synthetic fibers. At the same time, it can also be used for whitening and brightening in coatings, paints, inks and other industries.


The optical brightener KCB for plastics has the characteristics of convenient use, minimum dosage and best effect.


Optical Brightener KCB 367 CAS NO 5089-22-5  scope of application:


The optical brightener KCB is mainly used for the whitening of synthetic fibers and plastic products. It also has a significant brightening effect on colored plastic products. It is widely used in plastic films, film molding materials, injection molding materials, etc. It has excellent whitening effect on polyolefin, PVC, foamed PVC, TPR, EVA, PU foam, synthetic rubber, etc. It can also be used for whitening of paint, natural paint, etc.


Optical Brightener KCB 367 CAS NO 5089-22-5 KCB dosage and usage:


The commonly used amount of optical brightener KCB is 0.01~0.03%. that is, the optical brightener KCB to add 10-30g for plastics is added to every 100kg of plastic raw materials, which can be adjusted according to different formulations and requirements for whiteness.


When adding any ultraviolet absorber to the polymer, pls adjust the dosage of optical brightener KCB,.


Because the amount of optical brightener KCB  added is small, the brightener should be dispersed thoroughly so that the brightener can be evenly dispersed in the entire polymer. If a brightener is used as the optical brightener masterbatch, it is easier to achieve a sufficient dispersion effect.


Optical Brightener KCB 367 CAS NO 5089-22-5 KCB STORAGE:

The storage period of optical brightener KCB is more than 2 months. A small amount of crystals are allowed during the shelf life and will not affect the use effect.


Optical Brightener KCB 367 CAS NO 5089-22-5 KCB Price Trend:


Although the total demand for optical brightener KCB is not very large, but it is very important for foam EVA. In the past two years, optical brightener KCB's raw material  has been in short supply, and the pressure on environmental protection has increased. Many optical brightener KCB manufacturers have stopped production. The stock of optical brightener  KCB on the market is limited, so the optical brightener KCB  price is rising.


Optical Brightener KCB 367 CAS NO 5089-22-5 KCB product detail:

Product Name: Optical Brightening Agent KCB

Chemical Name: 1,4-Bis(2-benzoxazoly)naphthalene

CAS No.: 5089-22-5

C.I. No.: 367

Molecular Formula: C24H14N2O2

Molecular Weight: 362

Appearance:yellow crystalline powder 

Melting Point:210-212°C 

Purity:≥99% 

Maximum UV Absorption Spectrum:370nm

KCB -C.jpg


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