SARAWHITE-MST

Sarawhite-MST | OBA with a Bluish Tone

Product Information

Sarawhite-MST. is a fluorescent whitening agent with bluish-violet tone for cellulosic fibres and their blends. It is most suitable for continuous processes as there is no tailing and it has excellent leveling properties. Sarawhite-MST. can also be applied with a non-ionic finishing agents or with crosslinking agents.

Key Features & Benefits
Key Features Benefits
Low affinity
Applied by padding application
Good stability to crosslinking agent
Can be used with resin
pH stability
Stable to pH 5 to 9
General Characteristics
Physical appearance
Pale yellow to reddish yellow liquid
Ionic nature Anionic
pH of 1% solution 8.5 +/- 1
Miscibility Miscible with water
Stability Stable to dilute acids and dilute alkalies
Compatibility Compatible with anionic and non-ionic products
Application

Continuous/Padding process :

  • Dosage : 10-25 g/l (depending on substrate quality
  • Pick-up : 65-70%
  • Bath pH : 5.0-6.0
  • Drying : 140-160 deg.C, 4-5 min. with cross-linking agent

STABILITY & FASTNESS PROPERTIES :

Stability to
Remarks
Peroxide bleach
Stable
Reduction bleach (hydrosulphite based)
Stable
Chlorite bleach
Unstable
Chlorine bleach
Unstable
Hard water
Stable
pH
<1
Fastness properties
Methods
Change in degree of whiteness
Light-fastness
ISO 105-B02
3-4
Wash fastness, 60 deg.C
ISO 105-C06 C1
3-4
Wash fastness, 90 deg.C
ISO 105-C06 E1
2-3
Dry heat fixation, 180 deg.C
ISO 105-P01
5
Perspiration, acidic
ISO 105-E04
5
Perspiration, alkaline
ISO 105-E04
5
Dry Cleaning
----
5
Chlorite bleach
----
1
Chlorine bleach
----
4-5

Precautions

Storage : Store in cool, ventilated shed away from heat and direct sunlight. Storage temperature should not exceed 35 deg C.Close lids firmly to avoid contact with air and moisture.

Shelf Life : 8 months from the date of manufacturing, if stored under controlled conditions.

The above information is given in good faith and is without warranty

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