Vegetable dyes and chemical dyes compared
"There is a curious conviction prevailing in some quarters that beautiful durable colors are obtainable only from vegetable dyes. My first experiments were with barks, mosses, etc., but the difficulty of getting them, the enormous amount necessary to dye any quantity of goods, the tedious process in their use, and the fact that after all only a narrow range of colors is obtainable from them, compelled me to abandon them altogether. I began to investigate chemical dyes, and to gain information I applied to one of the largest woolen mills in New England, one which maintains a high reputation for the class of goods it manufactures; also to two wholesale houses dealing in all kinds of dyestuffs; and finally to one of the best experts in color in the country. Their verdict was unanimous, and is summed up in the opinion of the expert which he expressed in a letter to me on this question:
"'In regard to the use of vegetable dyes, I would say that they have almost disappeared from commerce, certainly for the purpose of dyeing fabrics.
Aniline colors
"'We know, of course, that there are strong prejudices still existing in the layman's mind in regard to the use of aniline colors, who supposes that they are not only fugitive, but that the resulting tones are harsh and unattractive. This, unfortunately, was so twenty-five years ago, and the impression made then upon the layman's mind has not been changed during all these years; but I can assure you that all the beautiful silk goods, tapestries, cloths, and all the colors which we see in fabrics to-day, are made, without exception, from aniline colors, which are immeasurably more permanent than are the vegetable dyes used up to, say, 1875.'
Formulas to be followed
"In using my range of eight colors I provide myself with large, strong glass bottles in which I keep my diluted colors. I use a pint measure for diluting the dyes. In preparing the fluid I put one half or one quarter of an ounce of dry color, whichever amount the formula calls for, into the pint measure and mix it thoroughly with a little cold water. The reason for using cold water is that the dyes are a tar product, and if mixed with hot water first, they are apt to grow waxy under the heat and not dissolve readily. Having dissolved them, I fill up the measure with hot water, stirring all the time. This makes a pint of liquid which is of uniform strength under all circumstances, and every formula is based upon this invariable pint measure of water. These formulas I have tried over and over again. They are made with special reference to the grade of flannel I have adopted, and doubtless will vary in results if used on other weights or weaves of wool goods."
DYE FORMULAS
NO. 1. DARK TERRA COTTA
Dark terra cotta