optical brightener BA

optical brightener BA

This item optical brightener BA suitable for: Cotton、Chinlon、viscose、T/C、T/R、Viscose、Wool、Silk. optical brightener BA can be dissolved in warm water, And good compatibility with most chemical agents used in dyeing and finishing,optical brightener BA used in One-bath dyeing.

Product Details

optical brightener BA

other name: optical brightener 113, fluorescent brightener BA, fluorescent whitener BA

This item optical brightener BA suitable for: Cotton、Chinlon、viscose、T/C、T/R、Viscose、Wool、Silk. optical brightener BA can be dissolved in warm water, And good compatibility with most chemical agents used in dyeing and finishing,optical brightener BA used in One-bath dyeing.


Physical characteristicsFastness properties
chemical onstructionStilbene derivativeH2O2Stable
appearanceLight gray powderreductantStable
ionicityNegativechlorineUnstable
affinityHighchlorateUnstable
fluorescent colorsBlue-violet lightPH scope6-11
solubility100 g/l @60℃
storage24 Month


Fastness properties



Cotton、ViscoseChinlonWool、Silk
fastness to light
3-432
washing fastness40℃555

60℃55*

95℃4-5**
chlorine fastness
4**
perspiration fastnessAcidic54-54

Alkalinity54-54
heat fastness180℃/30s210℃/30s54*
dry cleaning fastness
555

The above data in accordance with the ISO standard for testing


Application method
Cotton、Cellulose


dipping process
Padding process
4BK0.1-0.3 % (o.w.f)4BK0.5-2  g/l
H2O2(35%)8-14  ml/lH2O2(35%)8-20  ml/l
sodium hydroxid(100%)1-3  g/lsodium hydroxid(100%)3  g/l
scouring agent TC-QY902-4  g/lscouring agent TC-QY902-4  g/l
bath ratio1:5-10Fabric pad working liquid→steaming(100℃/50 minute)→wash
No bleach40-80℃/15-30 minute
Add bleach95-80℃/30-60 minute


Notes:

1. Do not use cationic additives. Because may cause conflict with anionic fluorescent whitening agent.

2. Water containing metal ions, such as: Cu、Fe、Mn、Zn,will affect the whitening effect of OBA. For this aspect, Can use metal ion chelating agent to remove in advance.

3. Do not exposed to the sun after dissolution.

4. optical brightener BA has good fastness to H2O2, so with H2O2 bleaching and fluorescent whitening treatment can be in the same dye bath.

5. optical brightener BA 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. optical brightener BA 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 sodium chlorite, will effect the whitening effect, so need to remove chlorine fully before use 4BK.


Packing method       

In 25kg cardboard drum.

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