Читать книгу The Practical Ostrich Feather Dyer - Alexander Bartlett Paul - Страница 26

Table of Contents

All other faded out light colors can be made into a delicate shade of sky blue by first bleaching with permanganate of potash process for the purpose of removing colors. White feathers that are only dirty and greasy must be thoroughly washed and rinsed in luke warm water, after which prepare bath as follows: For one gallon of luke warm water, more or less, according to the amount of feathers to be dyed, add a small handful of clean starch; enter your feather and rub them around in bath for a second between the hands to open the flues, to admit color evenly; add about one teaspoonful of oxalic acid, enter feathers and let remain in bath a few seconds longer; then remove feathers from bath, and add a couple of drops of concentrated cotton blue diluted; re-enter feathers and let them remain in about half a minute; increase temperature of your bath a few degrees by adding some hot water; take feathers out of bath and add thereto a drop of diluted indigo blue; re-enter, and keep them well under the surface of bath to give them an even color, and allow to remain in about thirty seconds longer. Take them out of bath, squeeze out and dry, either in powdered starch or by beating on a clean board or table. Under no circumstances allow feathers to hang wet and motionless on line during process of drying without beating the starch out. The result of so doing would cause the feathers to look thin, shriveled, and injure the color and quality of goods. The same care should be observed not alone in this, but in all colors.

In light blues your bath should look about two shades darker than the sample to be matched. Where a darker shade is required, more color can be added; and, through carelessness or negligence, should you allow your color to become too dark, rinse off your feathers in cold water first to remove the starch, and then in luke warm water a couple of times to draw off all acid, and pass feathers a few seconds through a bath of luke warm water with a small pinch of soda in it, which will have the effect of drawing off all surplus color; after which rinse in luke warm water, and mix a fresh bath of luke warm water and starch and one-half a teaspoonful of oxalic acid; enter your feathers and carefully add color until you have obtained the desired shade.