Oba Bluish Optical Brightening Agent Optical Brightener 4bk

• CAS No.: 12768-92-2
• EINECS: 224-073-5
• Color: Yellow
• Kind: Fluorescernt Brighening Agent
• Appearance: Powder
• Purity: 99%
• Model NO.: 4BK
• Color Tone: Bluish / Reddish / White
• Melting Point: 280 Degree
• Feature: High Temperature Resistance
• Transport Package: 25kg/Carton
• Trademark: LDCHEM
• Origin: China
• HS Code: 32042000
• Production Capacity: 8000mt/Year

Product Description

OBA Bluish Optical Brightening Agent Optical Brightener 4BK

I.PROPERTY
Appearance:  Gray-greenish  powder
Ionicity:  Anion
Chemical structure:  Stilbene derivatives
Shade:  Bluish/Reddish/violetish shade
Counter quality: Synowhite 4BK(KISCO)

II.APPLICATION
   1.With blue white shade for collulosic fibers,polyamide and their blends.
   2.With Highly appropriate for exhaust process.
   3.With excellent washfastness and very high bath exhaustion.
   4.With high and brilliant white maximum.
   5.With good stabile to alkalis,peroxid,and electrolyte.
   6. With good solubility in water.
      
III.PROCESS Method
1.Normal cotton whitenning exhaust process
   Dosage:  FWA 4BK  0.2-0.6% o.w.f       Sodium sulfate:5-10g/L
   Temperature×time:80-100ºC×20-30mins  Liquor rate:1:10-20
2.With peroxid bleaching for cotton exhaust process
   Dosage:FWA  4BK  0.2-0.6% o.w.f        Sodium hydroxid(30%):1-4g/L
   Hydrogen peroxid(35%):4-8g/L  Sodium silicate: 2-5g/L  
   Dertergent:0.5-1g/L            Stabilizer:0.1-0.5g/L
   Temperature×time:100ºC×30-45mins  Liquor rate:1:10-20
3. Continuous Process
   Dosage:FWA 4BK  1-4g/L
   Padding:Liquor pick-up 70-80%  Temperature×time:below 160ºC×20-30sec.

IV.PACKING AND STORAGE
   1. 25KG carton box or according to customer request.
   2. Be stable for 5 years when properly stored in closed container at 20ºC.
  



Optical Brightener product range:

I.OPTICAL BRIGHTENER FOR PLASTICS/RUBBER/INK/COATING
Optical Brightener OB-1	C.I. 393	CAS NO.1533-45-5
Optical Brightener OB	C.I. 184	CAS NO.7128-64-5
Optical Brightener FP-127	C.I. 378	CAS NO.40470-68-6
Optical Brightener KCB	C.I. 367	CAS NO.5089-22-5
Optical Brightener KSN	C.I. 368	CAS NO.5242-49-9
Optical Brightener EBF	C.I. 185	CAS NO.12224-41-8
Optical Brightener ER-I	C.I. 199	CAS NO.13001-39-3
Optical Brightener ER-II	C.I. 199:1	CAS NO.13001-38-2
Optical Brightener ER-III	C.I. 199:2	CAS NO.13001-40-6
II.OPTICAL BRIGHTENER FOR DETERGENT
Optical Brightener CBS-X	C.I. 351	CAS NO.27344-41-8
Optical Brightener CXT	C.I. 71	CAS NO.16090-02-1
III.OPTICAL BRIGHTENER FOR TEXTILE
Optical Brightener ER-330	C.I. 199	CAS NO.13001-39-3
Optical Brightener BA	C.I. 113	CAS NO.12768-92-2
Optical Brightener BBU	C.I. 113	CAS NO.16470-24-9
Optical Brightener CXT	C.I. 71	CAS NO.16090-02-1
IV.OPTICAL BRIGHTENER FOR PAPER/PULP MAKING
Optical Brightener BA	C.I. 113	CAS NO.12768-92-2
Optical Brightener BBU	C.I. 220	CAS NO.16470-24-9
V.OPTICAL BRIGHTENER FOR WOOL/ACRYLIC
Optical Brightener SWN	C.I. 140	CAS NO.91-44-1
Optical Brightener BAC	C.I. 363	CAS NO.95078-19-6

For more details, please contact Niki