C.I.85 Chemical Auxiliary Agent VBL Optical Brighteners In Paper
1. General Information of Optical Brightening Agent VBL(85)
|Used for textiles||Used for paper-making|
|Appearance||Light yellow or yellow uniform powder|
|Fluorescent strenghth (equivalent to the Sstandard sample)||100|
|Color Shade||Similar to the standard sample|
|Whiteness (the deviation with the Standard Sample)||—||≥ -3|
|Moisture content||≤ 5.0%|
|Content of Water-Insoluble Impurities||≤ 0.5%|
|Fineness (residual content passed through 250μm-pore sieve )||≤ 10.0%|
|The limitation of 23 kinds of harmful aromatic amines, mg/kg|
the standard GB 19601-2004
(1) Fluorescent Brightenening agent VBL is a typical representative
of bis(triazinylamino)stilbene derivative.
(2) It can be soluble in 80 times soft water and shows anion
character and the pH value resistant to acid and alkali is 6-11 and
the expected pH value of dyeing bath is 8-9.
(3) It has bluish voilet optical color and can be used in the
one.bath with anionic surfactant or dyestuff and nonionic
surfactant and oxydol, but unsuitable for application in cationic
dyestuff and surfactant and raw synthetic resin.
(4) When used in acidic solution, the fluorescence will weaken
owing to the increase of acid and turns into yellow color. It can
resist 300ppm hard water, 0.25% free chlorine, but don't resist the
ion of copper and iron.
(5) It show stability to rongalite, but cannot be baked at high
2. Application and procedure of Optical Brightening Agent VBL
(1) Fluorescent whitening agent for cotton fabric and gluing
products, light color or printing products. It show normal sun
light resistance and has good affinity with cellulose fiber, normal
level dyeing result. can be used in printing pulps and exhausting
or padding dyeing.
(2) Fluorescent whitening agent for polyvinyl alcoholic fiber and
(3) Fluorescent whitening agent for paper-making industry, paper
pulp or paints.
(1) When used in detergent, add directly. The dosage is 0.1-0.3% in
washing powder and liquid detergent.
(2) When used in dyeing industry, add directly into the dyeing
bath, solved with water then can be in use. the dosage is
0.08-0.3%, bath ration: 1:40, and the ideal bath temperature: 60℃.
(3) When used in paper-making industry, dissolved with 80 times
water and added into paper pulp or paints. The dosage is 0.1-0.3%
of the dry pulp or paints.
4. Packing and Shipping
Optical Brightening agent VBL is packed in 25 kg kraft bag with
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.