Ld Chemical Paper Chemical Additives Fluorescent Brightening Agent Bbu for Paper Fiber Whitening

• CAS No.: 16470-24-9
• Formula: C40h40n12o16s4na4
• EINECS: 240-521-2
• Appearance: Powder
• Usage: Rubber Auxiliary Agents, Coating Auxiliary Agents, Textile Auxiliary Agents, Paper Chemicals, Leather Auxiliary Agents, Ink, Plastic, Paint, Textile, Paper, Leather
• Color: Yellow
• Model No.: Bbu
• Purity: 99%Min
• Transport Package: Bag, Drum
• Specification: 1kg/bag; 25kg/drum
• Trademark: LD
• Origin: China Hunan
• HS Code: 32041700
• Production Capacity: 8000mt/Year

Product Description

Product Description

Product Description

Optical Brightener Agent BBU C.I.220 CAS: 16470-24-9 Fluorescent Brightener BBU C.I.220 CAS: 16470-24-9 for Paper  light yellow powder

Fluorescent Brightener BBU

C.I.No:220
Chemical name: stibene derivative
Struture: 

Specification: Appearance: Slight yellow powder

              Fluorescent color: Similar to the standard sample
Whitening Strength: 100%
Moisture: 5% (max)
Fineness (40 mesh residue): 5% (max)
C.I.Number: 220

Application: Mainly be used in whitening of cotton fabric, polyamide fabrics and pulp. And also used to increase brightness of light-colored fabrics.
 

Packing: Fiber drum.

Technical index

Physical characteristics		Fastness properties
chemical construction	Styrylbenzene derivative	H2 O2	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

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 H2 O2,so with H2 O2 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.

 

Packaging & Shipping

 

Package: 25KG bag/cardboard drums are packed in double lined bags for Manufacturer supply Optical Brightener 4BK fluorescent dyes for cotton

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.