Other name: Optical Brightener ERN C.I.135, Optical Brighening Agent ERN C.I.135
Chemical name: Stilbene derivative C.I.Number: 135 Appearance: Slight Yellow liquid Color light: Similar to the standard sample
Strength, E1cm1%: 32-34
Property: DT has properties of high whiteness, low cost, strong fluorescent light and convenient for using.
Process: Pad-thermosol dying process DT 20-30g/L, procedure: pad(two dips and two squeezes, residual liquor content 70%)→dry(100ºC) →cure(180-200ºC, 20-30s) Attention: The goods must be rinsed thoroughly after pretreatment to ensure the PH below 8. The PH of the pad liquor should be adjusted to 4-5 with acetic acid. HT exhausting process DT 1-3% (o.w.f.) Bath ratio 1:10-30 Treating temperature 120-130ºC Treating time 30-60min PH 5-10(5-7 is specially recommended)
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