Optical Brightening Agent Nfw-L

• CAS No.: 27344-41-8
• Formula: C28h20na2o6s2
• EINECS: 248-421-0
• Environmental Protection: Yes
• Color: Yellow-Green
• Kind: Fluorescernt Brighening Agent
• Model NO.: NFW-L
• Appearance: Liquid
• H S Code: 32042000
• Transport Package: 25kgs Drum
• Specification: 99%
• Trademark: AFINE
• Origin: China
• HS Code: 3204200000

Product Description

OPTICAL BRIGHTENING AGENT NFW 450%

[Ingredients]  Distyryl-biphenyl derivative
[Properties]    

•  Apperance:Yellow-greenish granule
•  Ion: Anionic
•  Stable at PH 6-12
•  strength: 100±1(correspond to the standard sample)

[Characteristics]

• A very high whiteness when major dosage. The shade in fabric is slight reddish.
• There is appropriate affinity with cotton or polyamide.
• Stabe for reductive or peroxide.

 [Application]
Suit for cotton , polyamide , silk, or their blend fabric.

[Method of use]
Exhaust application for cotton: 0.05-0.15%
Salt: 2-5g/l
Peroxide 35%:4-12g/l
Stable agent:2-4g/l
Alkali flake:0.5-2.5g/l
Ratio: 1:10-20
Temperature: dyeing at 90-100ºC about 30-40min

Exhaust application for polyamide and cotton blend fabric: 0.1-0.25%
Reductive : 2-5g/l
Salt:1-3g/l
Sequestring agent:1-2g/l
Detergent :1g/l
PH about 7
Ratio: 1:10-20
Temperature: dyeing at 90-100ºC about 30-40min
Needed to neutralize with 0.5g/l of peroxide 35%, so that getting off  peculiar smell in fabric.
[Note]
       Applied one bath with other agent , should consider stability.
[Transport,storage and packing]

•  25 kgs/case, and package as customer
•  The product is non-hazardous,chemical properties stability,be used

in any mode of transport.

•  At room temperature,storage for half year.

 [Important hint]
The above information and the conclusion obtained is based on our current
knowledge and experience, users should be according to the practical application of
different conditions and occasions to determine the optimal dosage and process.