Optical Brightener 4BK Optical Brightening Agent 4BK Whitening agent for cotton fabric
Optical brightener 4BK suitable for: Cotton,Chinlon,viscose,T/C,T/R,Viscose,Wool,Silk. Optical brightener 4BK can be dissolved in warm water, And good compatibility with most chemical agents used in dyeing and finishing,optical brightener 4BK used in One-bath dyeing.
Shijiazhuang Taicang New Materials Co., Ltd. is a technology innovation and environmental protection enterprise integration of research, production and sales series of and .
,optical brighteners in textiles,,cotton fiber dyeing,,Fluorescent Brightener Agent 199,.
optical brightener 4BK
other name:optical brightener 113,fluorescent brightener4BK,fluorescent whitener4BK
This item optical brightener 4BK suitable for: Cotton、Chinlon、viscose、T/C、T/R、Viscose、Wool、Silk.optical brightener 4BK can be dissolved in warm water, And good compatibility with most chemical agents used in dyeing and finishing,optical brightener 4BK used in One-bath dyeing.
Physical characteristics |
Fastness properties |
||
chemical onstruction |
Stilbene derivative |
H2O2 |
Stable |
appearance |
Light gray powder |
reductant |
Stable |
ionicity |
Negative |
chlorine |
Unstable |
affinity |
High |
chlorate |
Unstable |
fluorescent colors |
Blue-violet light |
PH scope |
6-11 |
solubility |
100 g/l @60℃ |
||
storage |
24 Month |
Fastness properties
Cotton、Viscose |
Chinlon |
Wool、Silk |
||
fastness to light |
3-4 |
3 |
2 |
|
washing fastness |
40℃ |
5 |
5 |
5 |
60℃ |
5 |
5 |
* |
|
95℃ |
4-5 |
* |
* |
|
chlorine fastness |
4 |
* |
* |
|
perspiration fastness |
Acidic |
5 |
4-5 |
4 |
Alkalinity |
5 |
4-5 |
4 |
|
heat fastness |
180℃/30s210℃/30s |
5 |
4 |
* |
dry cleaning fastness |
5 |
5 |
5 |
The above data in accordance with the ISO standard for testing
Application method |
|||
Cotton、Cellulose |
|||
dipping process |
Padding process |
||
4BK |
|
4BK |
|
H2O2(35%) |
8-14 ml/l |
H2O2(35%) |
8-20 ml/l |
sodium hydroxid(100%) |
1-3 g/l |
sodium hydroxid(100%) |
3 g/l |
scouring agent TC-QY90 |
2-4 g/l |
scouring agent TC-QY90 |
2-4 g/l |
bath ratio |
1:5-10 |
Fabric pad working liquid→steaming(100℃/50 minute)→wash |
|
No bleach |
40-80℃/15-30 minute |
||
Add bleach |
95-80℃/30-60 minute |
Notes:
- 、Fe、Mn、Zn,will affect the whitening effect of OBA. For this aspect, Can use metal ion chelating agent to remove in advance.
- ,Only use appropriate amount is enough to show whitening effect. If use too much will appear extinction phenomenon.
Packing method
In 25kg cardboard drum.
As A , We Can Wholesale You Fluorescent Brightener Agent 199, Er Fluorescent Brightener Agent, Oba Mst. Fluorescent Powder Reactive Can Be Used For Textile Dyes. If You Need, Please Contact Us.
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