Sylic® Optical Brightener BBU for Cotton/ OBA / Blanqueador optico BBU Contra Blankophor BBU 250

• CAS No.: N/A
• Formula: N/A
• EINECS: N/A
• Color: Light yellow powder
• Appearance: Powder
• Application: Optical Brightener
• Model NO.: OBA BBU
• Transport Package: 25kg New Carton Box
• Origin: China
• HS Code: 32042000

Product Description

Sylic ® Optical Brightener Agent BBU

1. Introduction

BBU is suitable for: Cotton,Chinlon,viscose,T/C,T/R,linen,Wool,Silk. It can be dissolved in warm water, acid and alkali resistant, It has good compatibility with most chemical agents used in dyeing and finishing,used in One-bath dyeing. 
 

2. Technical index

Physical characteristics		Fastness properties
chemical construction	Styrylbenzene derivative	H2O2	Stable
appearance	Light yellow powder	reductant	Stable
affinity	High	chlorate	Unstable
Shade	Blue-purple light	PH scope	6-11
solubility	100 g/l @60ºC
storage	24 Month

3.Applications

1. BBU is tetrasulfonic acid type Styrylbenzene derivative. This model has better solubility, light fastness, stability of acid-alkali than VBL, especially better whiteness at the same dosage. It is blue-purple when dissolving in water.  
2. BBU can be used for whitening of surface sizing, coating…Or used directly, or dissolved in water.

Dosage: granular type BBU to dry paper pulp, raw material 0.1-0.3%, coating 0.1-0.5%,surface sizing0.1-2%
Notes: BBU should be used before alum or cationic auxiliaries when pulp whitening. If for surface sizing, BBU can work with CMC, PVA, starch and anion or cation synthetic sizing agent at the same time. If for coating, BBU should be dissolve in water , then used at any stage of preparation.  

1. Do not use cationic additives.Because may cause conflict with anionic fluorescent whitening agent, that may cause sediment.
2. Water containing metal ions,such as: Cu,Fe,Mn,Zn,will affect the whitening effect of OBBU. For this aspect,Can use metal ion chelating agent to remove in advance.
3. Do not exposed to the sun after dissolution.
4. BBU has good fastness to H2O2,so with H2O2 bleaching and fluorescent whitening treatment can be in the same dye bath.
5. BBU is a kind of fluorescent dyes with excellent whitening effect,Only use appropriate amount is enough to show whitening effect. If use too much will appear extinction phenomenon.
6. Its dyeing speed is fast, dye uniformity and compatibility is good, so Room temperature bath without additives can dyeing
7. If used in the dye bath containing NaClO2,will effect the whitening effect, so need to remove chlorin fully before use BBU.




 

Package:
Packing : 25kgs new carton box with pallet               
Maximum order quantity of 20'FCL : 12.6MT 



Shipment:
Whether you have your own freight-forwarder or  you would like us to organize shipment ; whether you
require delivery FOB to a port in China or CIF to a port near you,we are happy to quote and supply whichever
way you choose. Please feel free to discuss all options with us . 
Our delivery time : Within 20days after got T/T or L/C bank copy



Payment:
We support a variety of payment terms like T/T, L/C at sight, DP, C.A.D etc. If customers need forward
payment term like T/T 30 days or L/C 60 days, we will also try to meet their demand based on customers'
reputation and consumption.
 
Certificate:
Our products' quality has been approved by ISO9001 quality management system, OKEO-TEX, GOTS,etc.



Market:
Our partners all around the world.