Factory source Optical Brightener 199 - Optical Brightener OB – Subang

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We always get the job done to be a tangible staff to ensure that we can easily offer you the best high-quality and the greatest value for Uvitex Ob-1, Fluorescent Whitening Agent BAC, 2,5-Thiophenedicarboxylic acid, Our company is working by the operation principle of "integrity-based, cooperation created, people oriented, win-win cooperation". We hope we can have a friendly relationship with businessman from all over the world.
Factory source Optical Brightener 199 - Optical Brightener OB – Subang Detail:

Structural formula

1

Product Name: Optical brightener OB

Chemical Name: 2,5-thiophenediylbis(5-tert-butyl-1,3-benzoxazole)

C.I.:184

CAS NO.:7128-64-5

Specifications

Molecular formula: C26H26N2O2S

molecular weight: 430

Appearance: light yellow powder

Tone: blue

Melting point: 196-203℃

Purity: ≥99.0%

Ash: ≤0.1%

Particle size: Pass 200 mesh

Maximum absorption wavelength: 375nm(Ethanol)

Maximum emission wavelength: 435nm(Ethanol)

Properties

Optical brightener OB is a kind of benzoxazole compound, it is odorless, hard to dissolve in water, soluble in paraffin, fat, mineral oil, wax and common organic solvents. It can be used for whitening thermoplastic plastics, PVC, PS, PE, PP, ABS, Acetate fiber, paint, coating, printing ink, etc. It can be added at any stage in the process of whitening the polymers and make the finished products emit a bright bluish white glaze.

Application

Optical brightener OB is one of the best brighteners widely used in plastics and fibers and has the same whitening effect as Tinopal OB. It can be used in thermoplastics, polyvinyl chloride, polystyrene, polyethylene, polypropylene, ABS, acetate, and it can also be used in varnishes, paints, white enamels, coatings, and inks.It also has a very good whitening effect on synthetic fibers.It has the advantages of heat resistance, weather resistance, non-yellowing, and good color tone.It can be added to the monomer or prepolymerized material before or during polymerization, condensation, addition polymerization, or added in the form of powder or pellets (i.e masterbatch) before or during the formation of plastics and synthetic fibers.

Reference usage:

1  PVC:

For soft or rigid PVC:

Whitening: 0.01-0.05% (10-50g/100KG material)

Transparent: 0.0001-0.001%(0.1g-1g/100kg material)

2  PS:

Whitening: 0.001% (1g/100kg material)

Transparent: 0.0001-0.001 (0.1-1g/100kg material)

3  ABS:

Adding 0.01-0.05% to ABS can effectively eliminate the original yellow color and achieve a good whitening effect.

4  Polyolefin:

Good whitening effect in polyethylene and polypropylene:

Transparent: 0.0005-0.001%(0.5-1g/100kg material)

Whitening: 0.005-0.05%(5-50g/100kg material)

Package

25kg fiber drum,with PE bag inside or as customer’s request.


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Factory source Optical Brightener 199 - Optical Brightener OB – Subang detail pictures


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We regularly perform our spirit of ''Innovation bringing progress, Highly-quality making certain subsistence, Administration marketing benefit, Credit score attracting customers for Factory source Optical Brightener 199 - Optical Brightener OB – Subang , The product will supply to all over the world, such as: Bangladesh, Sheffield, Florida, We sincerely hope to cooperate with customers all over the world, if you would like to have more information, please kindly contact us, we are looking forward to building up a great business relationship with you.
  • The supplier cooperation attitude is very good, encountered various problems, always willing to cooperate with us, to us as the real God.
    5 Stars By Carol from Saudi Arabia - 2018.02.21 12:14
    The product manager is a very hot and professional person, we have a pleasant conversation, and finally we reached a consensus agreement.
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