Oba for Polyester Optical Brightening Agent Rn

• CAS No.: 13001-39-3
• Formula: C24h16n2
• EINECS: 235-836-7
• Environmental Protection: Yes
• Color: Yellow-Green
• Kind: Fluorescernt Brighening Agent
• Model NO.: OBA199
• Appearance: Liquid
• Application: Textile Printing Auxiliary, Dying Auxiliary, Whitening Agent for Acrylic
• H.S.Code: 32042000
• Transport Package: 25kgs Drum
• Specification: 20-25%
• Trademark: AFINE
• Origin: China
• HS Code: 3204200000

Product Description

Optical Brightening Agent (OBA) RN

Chemical name: Stilbene derivative
C.I.Number: 199

Appearance: Slight Yellow powder

Ionic character: Nonionic

PH value: 5 ~ 7

Solid content: 20% (min)
Property: Mainly be used in whitening of polyester fabric and its blends with strong fluorescence, high whitening performance,  good fastness to light, wash and excellent fastness to sublimation.

Process:

1. Pad-thermos fixing process

OBA RN 2-3g/L (should be adjusted according to the sample testing), procedure: pad(two dips and two squeezes, residual liquor content 70%) →dry(100ºC) →(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.

2.HT exhausting process

RN          0.2-0.3%(o.w.f)   liquor ratio   1:10-30
Treating temperature 120-130ºC        Treating time  30-60min
PH                5-10 (5-7 is specially recommended)

 

Items	Specifications	Results
Appearance	Slight yellow-green Liquid	Conform
Particle size  (≤2-3um)	≥90%	≥95%
PH	6 ~ 7	6.8
C.I.E whiteness	Wg: 140.7   Tw: 2.93  (Usage: 0.3%)
Active content	20.0±0.5%	20.0%