RUBFAST-425

Rubfast-425 | Wet Rubbing Fastness Improver

Product Information

Rubfast- 425 is a specialty finishing agent to improve dry and wet rub fastness for all types of dyed and printed cotton and their blends. Rubfast- 425 is effective for dyed and printed emerised dark shades. Rubfast- 425 is compatible with certain cationic and nonionic silicone finishing agents. Rubfast- 425 can be applied by both dry- on- wet and wet- on- wet application.

Key Features & Benefits
Key Features Benefits
Excellent improvement in wet rub fastness by padding
Improves by 1.5- 2.0 units on direct reactive, sulphur, indigo and pigment dyed fabrics
Formaldehyde Free
Suitable for Oekotex and baby wear
No adverse effect
Does not affect the washing fastness and original handle of the fabric
General Characteristics
Physical appearance
Yellow to reddish orange liquid
Ionic nature Cationic
pH of 1% solution 4 +/- 1
Miscibility Miscible with water
Stability Compatible with cationic and nonionic products
Compatibility Stable to dilute acids and unstable to dilute alkalies
Application

Padding process

  • Dosage : 20- 30 g/l
  • Pick- up : 65- 70%
  • Bath pH : 5.0- 5.5
  • Drying : 130- 160 deg.C

Exhaust process

  • Dosage : 2- 3%
  • Bath pH : 5.0- 5.5
  • Bath Temp. : 40 deg.C, 30 mins
  • Drying : 110- 150 deg.C

*Exhaust process is suitable only for Package dyeing and Garment drum m/c.

*70- 100 g/l Rubfast- 425 is recommended for wet- on- wet application.

Note:

Drying at 145- 150 deg.C 90 sec. gives better results than 130- 140 deg.C

For garments, it is essential to cure at 150 deg.C after exhaustion.

Special Instructions:

  • Fabric to be treated should be free from anionic components.
  • Performance of Rubfast- 425 is achieved when it is used alone without any finishing agent as with some finishing agents, the performance of Rubfast- 425 slightly impairs.
  • Do not use Rubfast- 425 in print paste.
  • Pre-lab trials are recommended with other finishing agents.
  • The absorbency of fabric should be instant. To improve absorbency of all over printed fabric (reactive/pigment), 0.2- 0.5 g/l Celldet- R (wetting agent) is to be added in the finishing bath.
  • pH of the fabric should be neutral.
  • First, the pH of the water to be adjusted to 5.0- 6.0 and then final pH with Rubfast- 425 should be 5.0- 6.0. This solution is stable for up to 2 hours. If any precipitation is observed, stir using a mechanical stirrer with low speed.
  • To avoid precipitation formation, Rubfast- 425 (in neat form) to be mixed with 10 g/l Isopropanol and then diluted with pre-adjusted pH water.
  • If finishing is to be done along with softener, then first prepare Rubfast- 425 solution and then add the softener into
  • If a fabric is biopoished than the Rubfast- 425 gives a lower rating than non-bio polished fabric.
  • Use of softener is likely to reduce the performance of Rubfast- 425.
  • Finished fabric to be dried only at 150 deg.C in stenter with minimum time.
  • Rubfast- 425 is unstable to sodium citrate and exhibit limited stability to electrolytes.
  • Addition of 2- 3g/l Saraline- FI makes the Rubfast- 425 solution robust (stable).
  • Rubfast- 425 on standing during storage may become dark (reddish orange in colour)

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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