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Carewhite-PAS is an optical brightening agent for polyamide, wool, silk, cellulosic fibres and their blends. It can be applied by exhaust as well as by continuous process. Fabric treated with Carewhite-PAS offers violetish white shade on the treated substrate. Carewhite-PAS shows good stability to wide range of pH. Carewhite-PAS shows good light fastness.
| Key Features | Benefits |
|---|---|
| Violetish white shade
|
Brilliant whites can be obtained
|
| Stable at wide range of pH
|
Stable to reductive bleach
|
| Physical appearance
|
Lemon yellow to yellow liquid
|
| Ionic nature | Anionic
|
| pH of 1% solution | 9.5 +/- 1
|
| Miscibility | Miscible with water
|
| Stability | Stable to dilute acids and dilute alkalies
|
| Compatibility | Compatible with anionic and nonionic products
|
Padding process
Exhaust process
STABILITY & FASTNESS PROPERTIES:
| Stability to:
|
Remarks
|
| Peroxide bleach
|
Stable
|
| Reduction bleach (hydro sulphite based)
|
Stable
|
| Chlorite bleach
|
Not Stable |
| Hard water, ppm (Ca)
|
Not Stable
|
| pH
|
2-12
|
| Compatibility with softeners
|
Compatible
|
| Fastness properties
|
Methods
|
Rating
|
| Light fastness
|
ISO 105-B02
|
3 - 4
|
| Wash fastness, 60 deg.C
|
ISO 105-C06 C1
|
5 |
| Wash fastness, 90 deg.C
|
ISO 105-C06 E1
|
3 |
| Dry heat fixation, 180 deg.C
|
ISO 105-P01
|
5 |
| Dry heat fixation, 210 deg.C
|
ISO 105-P01
|
5 |
| Perspiration, acidic
|
ISO 105-E04
|
5 |
| Perspiration, alkaline
|
ISO 105-E04
|
5 |
| Dry cleaning (perchloroethylene)
|
ISO 105-D01
|
4-5
|
| Chlorine bleach
|
--- | 4-5
|
| Chlorite bleach
|
--- | 1 |
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 : 9 months from the date of manufacturing, if stored under controlled conditions.
The above information is given in good faith and is without warranty
