Textile · Liquid
UMATON BMBI-Liquid
Optical Brightener (Low substantive)
Low substantive Optical Brightener for natural and regenerated fibres, particularly blends of cellulose & synthetic fibres.
Packing40Kgs / 50Kgs / 200Kgs HDPE drums, IBC 1100Kgs
Specifications
- Chemistry
- Derivative of Stilbene Disulphonic Acid
- Appearance
- Brownish Yellow Liquid
- Ionic Nature
- Anionic
- Specific Gravity
- 1.18 – 1.2
- Shade
- Bluish to Neutral White
- Solubility
- Can be diluted with water in any proportion. Neutral to weakly alkaline. Insensitive to medium hard water (approx. 15° German).
Stability
- In Solution
Peroxide Very good Hydrosulphite Very good Chlorine Not Stable Acids Good Alkalis Very good - On Fibre
Peroxide Very good Hydrosulphite Very good Chlorine Good Acids Good Alkalis Very good
Fastness
- Light
- 3–4
- Washing
- 4–5
Application
- By Padding
- 1 to 3 GPL — usable in conventional resin finishing (pH of resin bath must be above 5.0 to avoid precipitation). Also suitable for starch, PVA or similar finishes.
- By Exhaust
Dosage 0.1 to 0.60% on weight of fabric Time 20–30 minutes Temperature Range 20–120 °C pH range 5.5 – 11 Salt Addition 3–5 GPL Sodium Sulphate - Peroxide Cold Pad Batch Bleach
- 2 to 5 GPL/Kg added to the impregnating liquor
Notes
- Dilute solutions must not be exposed to natural light.
- Do not use cationic auxiliaries.
- Heavy metal ions may interfere with the effect of anionic optical brighteners — avoid by adding suitable chelating agents.
