optical brightener ER-II

optical brightener ER-II

optical brightener ER-II Fluorescent Brightener Agent is suitable for polyester fiber and its blended products. optical brightener ER-II Can be applied to dip method at low temperature (100 ℃), dip method at high temperature, and padding baking dyeing method. This product optical brightener ER-II is a dispersed liquid.

Product Details

optical brightener ER-II

other name: optical brightener 199:1, fluorescent brightener ER-II, fluorescent whitener ER-II

optical brightener ER-II Fluorescent Brightener Agent is suitable for polyester fiber and its blended products. optical brightener ER-II Can be applied to dip method at low temperature (100 ℃), dip method at high temperature, and padding baking dyeing method. This product optical brightener ER-II is a dispersed liquid. Suggest to stir well before each use. The following in accordance with its basic properties and dyeing method is introduced:


Physical characteristicsFastness properties
chemical onstructionStyrylbenzene derivativeH2O2Stable
appearancePale yellow dispersion liquidreductantStable
ionicityNegativechlorineUnstable


chlorateUnstable
fluorescent colorsWhite lightPH scope5-12
solubilityMixed with cold water or warm water dilute but must pay attention to stratification.
storage12 Month


Fastness properties



Polyester
fastness to light
5-6
washing fastness40℃5

60℃5

95℃*
chlorine fastness
5
perspiration fastnessAcidic5

Alkalinity5
heat fastness180℃/30s210℃/30s54-5
dry cleaning fastness
5

The above data in accordance with the ISO standard for testing


Application method
Low temperature dip dyeing methodhigh temperature dip dyeing method
Recommended concentration:0.1% - 0.5%Recommended concentration:0.1% - 0.5%
bath ratio:1:10-1:20bath ratio:1:10-1:20
temperature range:50℃ - 60℃temperature range:50℃ - 60℃
Heating rate:2-3 ℃ per minuteHeat up time:30 minute (130 ℃)
soaking time:45 minute (98 ℃)Heating rate:2-3 ℃ per minute


soaking time:30 minute (130 ℃)
padding baking dyeing method

Recommended concentration:0.3 - 2g/L

pick up rate:60% - 70%

preliminary dry temperature:120℃

baking temperature:170℃ - 190℃

baking time:30-90 seconds


Packing method

In 25kg plastic drum.

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