Interference 103,685
Date 2/20/90 Project No. Nomex Dyeing Book No. 1664
Evaluation of “Carrier” Candidates
see p. 28 for procedure
1 2 3
Wt. Of fabric 10.83 10.64 11.53
diethylbenzamide 4gm
Ninol 11-CM Coconut 4gm
diethanolamide
Ninol 201 Oleic
diethanolamide 4gm
Acid blue #62(2%owf)X X X
% exhaust 90 10 10
Fabric Color 80% full(not as deep as
dibutylfomamide*
. . . .
. . . .
11.56 10.53 11.45
* Color may be typical of soluble vs insoluble -
more penetration
% Addn 6.7 -1.0 -1.0
Boiling washes 11.23 10.62 11.53
Diethylbenzamide is of particular interest in
reference to the results of p. 28 this book in which
dimethyl benzamide was relatively ineffective under
these same conditions. It is quite unlikely that the
solvent properties of these two very similar compounds
differ greatly - but it is very likely that solubility
in water is much less for the diethyl than for the
dimethyl. This pair exhibits this effect, as does the
methyl, ethyl and cyclohexylpyrrolidones and perhaps
other compounds in this same family. Other effects such
as base strength or molecular size may affect dyeing
efficiency on Nomex but it seems clear that solubility
in water strongly influences efficiency within this
family of dyeing aides.
Howell Riggins 3/22/90 Penny E. Haith 5/4/90
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