attained in the invention the content of compound i in the resist printing paste is freely selected generally one by weight of compound i is preferably contained and 2 to 3 by weight of compound i is more preferably compound i hardly reacts with dyestuffs other than from vinyl sulfone type reactive dyestuffs and if compound i is reacted with such other dyestuffs the reaction is very slow accordingly the resist printing paste according to the invention is very useful for either white resist printing or colored resist printing the colored dyestuffs included in the resist printing paste are not particularly limited compound i does not substantially prevent the reactivity of monochlorotriazine trichloropyrimidine and dichloroquinoxaline dyestuffs reactive dyestuffs similar to vinyl sulfone type dyestuffs the development of the vinyl sulfone type dyestuffs being prevented with compound i so the resist printing paste according to the invention preferably comprises at least one of these reactive dyestuffs to produce a clear colored resist printing further since compound i is superior in heat stability and is stable to drying a vinyl sulfone type reactive dyestuff can be applied to the printed fibrous material with the resist printing paste in the invention either after or before drying the paste if a vinyl sulfone type dyestuff is applied after drying the resist printing paste at 100 u00b0 c to 150 u00b0 c the resist printing is carried out very effectively further as compound i is very reactive the resist printing paste according to the invention can prevent the development or fixation of all vinyl sulfone type dyestuffs including dark and light colored dyestuffs accordingly the method of the invention is superior in workability and has extensive applications the.