SARADYE-FN | Formaldehyde Free Dye-Fixing Agent

Saradye-FN is a polyamine-based non-formaldehyde cationic dye-fixing agent for reactive dyes and direct dyes. Saradye-FN improves wash fastness, fastness to perspiration and water contact fastness. Saradye-FN shows a minimum effect on light fastness and on the shade of the treated material. Saradye-FN can be applied by exhaust as well as pad application.

Exhaust Process :

After thorough soaping to remove hydrolysed reactive dyestuff from dyed or printed material, treat in a fresh bath with below recipes :

• Saradye-FN : 0.5-2%
• Bath pH : 5-5.5
• Bath Temp : 40 deg.C
• Time : 15-30 min.

If finishing with cationic softener is to be carried out in the same bath, it is recommended to first carry out dye-fixing with 1/3rd quantity of required Saradye-FN under above conditions

followed by addition of cationic softener in the same bath under

the same conditions for 15-20 mins. followed by addition of a remaining quantity of Saradye-FN in the same bath and treatment to be carried out for further 15-20 min.

Continuous process :

• Saradye-FN : 5-20 g/l
• Pick-up : 65-70%
• Bath pH : 5-5.5
• Drying : 130-170 deg.C

Removal of a dye-fixing agent from dyed fabric:

Take 0.5-1% Celldet-R and treat the dye-fixed fabric at 95 deg. C for 20-30 min and drain the bath.

Cold wash for 10 min and drain.

Adjust the bath pH 4.5-5.0 using acetic acid and run for 5 min to ensure the

• Bath pH 4.5-5.0 then add
• 2.0-3.0%Saragen-SO
• 1.0-1.5% Sarakol-RDL for 20-30 min and drain the bath.

• Treat at 85-90 deg. C for 20-30 min and drain the bath.

• Hot wash at 70 deg. C for 10 min and drain the bath.
• Cold wash for 10 min and drain.

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.