Fluorescent Brightener 4bk Brightener 4bk

• CAS No.: 27344-41-8
• Formula: C24h16n2
• EINECS: 248-421-0
• Appearance: Powder
• Usage: Oil Drilling Auxiliary Agent, Water Treatment Chemicals, Rubber Auxiliary Agents, Plastic Auxiliary Agents, Coating Auxiliary Agents, Textile Auxiliary Agents, Paper Chemicals, Surfactants, Leather Auxiliary Agents, Electronics Chemicals
• Color: Green
• Model NO.: KW
• Transport Package: 25 Kgs Bag
• Specification: powder
• Trademark: KINGWAY
• Origin: China
• Production Capacity: 500000mt/Year

Product Description

1.Name: Fluorescent Brightener 4BK

 

2.Key Words:

Optical Brightening agent 4BK, Optical Brightener 4BK,

Optical whitening agent 4BK, Brightener 4BK

 

3.Appearance:

Yellow or greyish white powder

 

4.Technical index

Item	Index
Appearance	Yellow or greyish white powder
Color tone	Blue-purple
Fluorescence intensity (Cent)	100 (Compared with standard product)
Moisture	≤10%
Fineness (residuum through screen with 100um aperture)	≤10%

 

5.Performance:
It's anion, mainly used in whitening of cotton and blending. It has good acid and alkali resistance, has high fluorescence tone.

 

6.Application process:
Whitening of bleaching cotton:

1)Exhaust dyeing:

4BK	0.05~0.6%(o.w.f)
Na2SO4	5~20g/L
Bath ratio	1/10-30
Dyeing temp	20°C-100°C
Duration time	20-30 min

2)Oxygen bleaching:

4BK	0.05~0.6%( o.w.f)
H2O	2-10g/L
NaOH	1g/L
NaSiO3	2.5g/L
Bath ratio	1/10-30
Dyeing temp	90°C-100°C

 

7.Package, storage, and transport
Carton pail, net weight: 25kg, or packaging according to clients' demand.
Keep from sunshine, dampness; two years valid period.

 

We are optical brightener manufacturer,we can offer you the high and steady quality with competetive price.For more details please contact us. HENAN KINGWAY CHEMICALS CO., LTD.