MASFIX RD is a fixing agent with fibre affinity, used to improve the washing and contact fastness of dyeings and prints with reactive and direct dyestuffs on cellulosic fibres.

Appearance	Colorless clear liquid
Chemical composition	Polyammonium compound.
Ionicity	Cationic
Solid Content	50%
pH (10% sol.)	5 - 6
Solubility	Soluble with water
Stability to: Acids, Alkaliks & water hardness	Stable
Compatibility	Is not compatible with anionic products.
Stability to frost	Sensitive to frost. Shelf life is at least 12 months.

1. MASFIX RD improves the washing fastness at 40ºC and at 60ºC for direct and reactive dyeing.

2. MASFIX RD improves the contact fastness to water and to perspiration.

3. Only slight influence on the shade and light fastness.

4. No influence on the fabric handle and on sewability performance.

5. No fishy odours.

6. No influence on the hydrophility of the treated fabrics.

7. Formaldehyde free fixing agent.

8. Suitable for all kinds of cellulosic textiles such as yarns, fabrics and garments.

Add one part MASFIX RD into mixer

Add 3 parts cold water to mixer

Agitate 20-30 minutes

The following application dosage depending on diluted MASFIX RD

1. EXHAUST PROCESS

MASFIX RD can be applied in the exhaust process. The dyed fabric should be well rinsed before the after -treatment with this product, to avoid precipitations with residues of anionic wetting agents and dyeing auxiliaries.

After the treatment with MASFIX RD any excess of the product on the textiles should be removed by a cold rinsing bath, if possible. This will have a favorable effect on the light and wet fading fastness and possibly prevent shade changes in the case of metal-containing reactive dyes.

The pH of the after-treatment bath should be between 5-7, and the after-treatment temperature should be to 20 – 40ºC. Treat for 20-30 minutes.

Dosage recommendation: 1-3% diluted MASFIX RD used on the textile weight.

2. PADDING PROCESS

The material which was dyed, soaped and dried is padded with 10-30 gr/l diluted followed by drying. In wet on wet padding processes increase concentration according to pick up.

3. STRIPPING

To correct faulty dyeings, MASFIX RD must be removed from goods before redyeing.

Use the following stripping bath:

MASTONE DISPERSANT SF - 3 - 5 g/l

Acetic-acid (60%) - 1 - 2 g/l

Adjust to pH 4-4.5.

Treat at 95-98ºC for 20-30 minutes, drop bath and rinse thoroughly warm and cold water.