The Dyer's Guide / Being a compendium of the art of dyeing linen, cotton, silk, wool, muslin, dresses, furniture, &c. &c.; with the method of scouring wool, bleaching cotton, &c., and directions for ungumming silk, and for whitening and sulphuring silk and wool; and also an introductory epitome of the leading facts in chemistry, as connected with the art of dyeing

by Thomas Packer

Process for ORANGE.

After dyeing aurora with annatto, it is necessary to redden the annatto ground with vinegar, alum or lemon juice.

For the brightest oranges, and up to scarlets and poppy, &c. silk should have an annatto ground three or four shades under that of aurora. There is no occasion for alum when the silk has been grounded and washed off. If for orange a liquor which has been used for poppy will be sufficiently strong to finish it, or for light cherry, rose, &c. For flesh, the lightest of these colours is so delicate that a little of the soap water used for boiling should be added to the liquor, to prevent the silk from taking the colour too quickly or unevenly.

Liquors having safflower or weld in their composition, require to be immediately worked, as by keeping they lose their colour, that is, the safflower and its compounds, and are entirely spoiled. They are also always used cold, as the safflower cannot bear heat.

The safflower preparation has been before described in Chapter II. where the process of cotton pink is performed by its solution.