Optical Brightening Agent 4bk with Excellent Washing Fastness.

• Customization: Available
• EINECS: /
• Color: Yellow
• Model NO.: 4BK
• Kind: Brightener Agent
• Appearance: Powder
• Application: Post-Processing Auxiliary
• pH Value: 7.0~9.0
• Ion: Anionic
• Form: Powder
• Storage: One Year
• Transport Package: 25kg/Bag
• Specification: 98%
• Trademark: DEBORN
• Origin: China
• HS Code: 320420

Product Description

Product Name: Optical Brightener 4BK
Chemical Name: derivative of stilbene bistriazine acid
Product Use: paper and textile additive
[Ingredients]  
Stilbene
Weight % - Component - (CAS Registry Number)  40% derivative of stilbene bistriazine acid(12768-92-2)60% Sodium sulfate
[Properties]   

Property	Specification
Appearance	Slight gray-yellowish powder
Ionicity	Anionic
pH Value	7.0 ~ 9.0

 
[Characteristics]
Can dissolved in the hot water.
High whiteness increasing power.
Excellent washing fastness.
Minimum yellowing after high temperature drying.
Physical Form Appearance: yellow powder                    
Fluorescent Strength (Comprise with standard): 100±2
Moisture content:≤5.0%

Applications

Suitable for brightening cotton or nylon fabric with exhaust dyeing process under room temperature, has powerful strength of whiteness increasing, can achieve extra high whiteness.
 
[Method of use]
Dosage: 4BK:0.25 ~ 0.55%(o.w.f.)  
Procedure: fabric :water 1:10-20
              90-100'C for 30-40 minutes
 
[Transport,storage and packing]
25kgs in one cardboard boxes.
The product is non-hazardous,chemical properties stability,be used in any mode of transport.
At room temperature,storage for one year.