fluorescent Brightener Dt Optical Brightening Agent 135 Liq.

• CAS No.: 12224-12-3
• Formula: C18h14n2o2
• EINECS: 213-866-1
• Environmental Protection: Yes
• Color: Light White or Slightly Yellow
• Kind: Fluorescernt Brighening Agent
• Model NO.: DT
• Appearance: Liquid
• H S Code: 32042000
• Transport Package: 25kgs Drum
• Specification: 20%
• Trademark: AFINE
• Origin: China
• HS Code: 3204200000

Product Description

Fluorescent Brightener  DT C.I.135

Other name: Optical Brightener DT C.I.135, Optical Brighening Agent DT 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)