| AVCOSIL S is an antimigrating agent for pigment dyeing of textile fabrics by padding process.
SPECIFICATION:
| Appearance |
Clear, colourless liquid |
| Chemical nature |
Poly- ethoxylated copolymer in aqueous solution. |
| Ionicity |
Nonionic. |
| pH (of 1% sol. in water) |
7 ± 0.5 |
| Solubility |
Soluble in cold water under 40°C at any ratio. |
| Storage |
Do not store at temperature lower than 2°C or above 35°C. If product separates because of wrong storage conditions, it can be restored by simply mixing at room temperature. When properly stored, shelf life is at least 12 months. |
PROPERTIES & USES:
- AVCOSIL S is used as an antimigrating agent only for pigment dyeing, and is not
suitable for vat or disperse dyeing.
- AVCOSIL S is compatible with all kinds of finishing agents used in pigment dyeing
such as softeners, binders, resins and catalysts.
- AVCOSIL S produces very even dyeing effect, from side to side and from up to down
face
of the fabric.
APPLICATION:
Following are some examples of application:
Pigment dyeing recipe:
AVCOSIL S 5 -25 gr/l
AVCO-BINDER D 40 – 120gr/l
magnesium chloride 5 – gr/l
AVCOSOFT NIC 20 -40 gr/l (optional)
AVCOLOR PIGMENTS X – gr/l
Pad, dry at 110-130°C, cure at 150°C for 3-4 min.
One bath dyeing and resin finishing:
AVCOSIL S 5-25 gr/l
AVCO-BINDER D 40-120gr/l
AVCOREZ LFR40-120gr/l
magnesium chloride 6 -15 gr/l
AVCOSOFT PE20 -40 gr/l
AVCOSOFT NIC 20 -40gr/l (optional)
AVCOLOR pigment X -gr/l
Pad, dry at 110-130°C, cure at 150°/3-4 min. REMARKS
-
Pick up of fabric should be as low as possible, 80% or lower.
-
Add AVCOSIL S pre-diluted (1:4) to the padding liquor, before the binder and pigments are added.
-
Use of magnesium chloride is preferred, but other acid donors such as ammonium salts can be used.
-
Cure for 3-4 minutes at 150°C. At higher curing temperatures, curing time can be reduced up to 1-1.5 minutes at 180°C
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