Friday, May 6, 2011

Testing of Vinyl sulphone/ Mono-chlorotriazine Dyestuffs by print strike off method

Although a comparative exhaust dyeing method is always recommended for comparing two samples of dyestuffs, people in printing industry prefer to make strike off prints to compare the standard and sample.

Print Paste preparation for strike off:

Materials used

Vinyl Sulphone dyes

H/P type of dyes


40 grams

40 grams

3-4% Sodium Alginate gel

720 grams

720 grams

Sodium Bicarbonate

30 grams

20 grams

Soda Ash


15 grams

Resist Salt

10 grams

10 grams


100 grams

100 grams


100 grams

95 grams


1000 grams

1000 grams


Method of printing:

On a well mounted RFD fabric on printing table, using the above paste prepared separately for standard and sample, two strikes off would be printed with the test screens.

After the print, gets dried properly, the fabric will be passed through saturated steam chamber (in a Star Ager) at 1050C for 10-15 minutes or dry curing chamber at 1500C for 4 to 5 minutes. This is followed by hot wash, cold wash, neutralization with acetic acid 2gpl and 2 soaping, hot and cold washes.

Final pH is set at 6 by doing an acetic acid treatment at the end of all washings.


1 comment:

  1. Hi friends,

    Thanks for sharing this information which i was looking for since many days and finally got it from this site.
    Keep on sharing new informations..more and more..