High Whiteness Fluorescent Brightener 351 Uvitex NFW Liquid
Distyryl Biphenyl Derivative
1. General Information of Optical Brightening Agent NFW 450%
|Appearance||yellowish transparent liquid|
|Chemical Class||Distyryl biphenyl derivative|
(1) Fluorescent brightening agent NFW is a biphenyl-stilbene
derivative. It has good fastness property and better whiteness
while suitable for exhaust and padding proces.
(2) It has high affinity to Nylon and low-to-medium affinity to
Cellulose and has wide range of PH conditions( PH 2-12)
2. Application and procedure of Optical Brightening Agent NFW 450
Fluorescent brightening agent NFW Liquid is of fluoresene radiation
of purple blue and can improve the whiteness in the sunlight. It is
also with good stability to reductant and hydrogen peroxide.
Besides it is with strong color fastness and good whiteness.
Staining temperature between 80-100 ℃
(1) For Wool ( Dip-dye)
Dosage : 0.10 - 0.5%
Sodium sulfate: 2-5g/L
Hydrogen peroxide(35%): 4-12g/L
Hydrogen peroxide bleaching stabilizer: 2-4g/L
Liquor ratio: 1:10-20
(2) For Nylon /cellulose fibre blend (Dip-dye)
The Dip-dye and bleaching process had better be conducted
Dosage : 0.1-0.25%
Sodium dithionite: 2-5g/L
Sodium sulfate: 1-3g/L
Chelation dispersant: 1-2g/L
Temperature: 90-100℃ for 30-40minutes
Before drying please neutralize the residue of reductant by drogen
In case of pungent odor yellow stain during drying process.
4. Packing and Shipping
It is packed in 25 kg fiber drum.
We have rich experiences in exporting and importing. We have good
cooperation with world wide Express like DHL, UPS etc and also
shipping line to ensure the samples and goods can be reach to the
cutomers at soonest speed.
5. Quality Contral and R&D
We have more than 15 years of production and we also have
experienced technical person to do testing and gurantee the quality
during the whole production line.In past few years our team strive
to develop new products which are enviromental friendly and energy
saving. We believe with our fulfillment to be the best enterprise
for our customers. Under their efforts the Optical brightening
agent has achieved national advanced level.
6. Production line
Shanxi Colorshine Chemical Industry Co.,ltd is an ISO-certified
modernized chemical enterprise in the collection of R&D,
production and sales. Our company concentrates on the production,
sales and service for Optical brighteners,Dyes and Carbon Black,
fine chemicals and intermediates, which are widely used in
detergent,paper-making, textile, rubber industry, medical industry,
paints, printing inks and etc.
Our company's headquarters is based in Linfen City, Shanxi
Province. We are establishing technical cooperation with Linfen
Tech University, and manufacture products according to different
customers’ requirements to fulfill market’s demand.
Except professional R&D team, our factory has advanced
production and testing equipments for testing, mixing and
post-processing the products in order to ensure the high quality.
With profound chemistry knowledge and rich experience, our business
team can offer professional technical supports according to
customers’ demand.Till now our products are exported to Japan and
South Korea, Southeast Asia, the Middle East, Central and South
America, Africa and successfully into Germany, France, the United
States and other European markets.