the colour comes back on the goods becoming cold again, but with
others this is not the case. If desired the goods may be subjected
after dyeing to a treatment with alum or, better, bichromate of
potash. The goods after being dyed are rinsed and then passed into a
bath at a temperature of 140 deg. F., containing 3 lb. bichromate of
potash and 1-1/2 to 2 oz. sulphuric acid. After being chromed in this
for about half an hour they are well washed. This chroming thoroughly
fixes the colour on the cotton and it will not change while being
finished, either by crabbing, steaming or hot pressing.
_Gold Brown_.--Use 1-1/2 lb. Diamine Cutch, 6-1/2 oz. Diamine Fast
Yellow B, 1 oz. each Union Black, Naphthol Blue Black and Azo Red A.
_Walnut Brown_.--A fine shade is got with 1-1/4 lb. Union Black S,
1-1/4 lb. Diamine Brown M, 3-1/4 oz. Diamine Fast Yellow B, 13 oz.
Indian Yellow G, and 1 oz. Naphthol Blue Black. After dyeing the goods
should be chromed with 3 lb. bichromate of potash and 2 oz. sulphuric
acid.
_Dark Blue_.--A good full shade is got with 2-1/4 lb. Union Black S,
9-1/2 oz. Diamine Brilliant Blue G, 6-1/2 oz. Alkaline Violet (p. 177)
C A, and 1/4 lb. Alkaline Blue F. Treatment in a bath of 1/2 lb. alum
and 1/2 oz. soda at 130 deg. F. will fix the colour against finishing.
_Silver Grey_.--A fine grey can be got from 1-3/4 oz. Diamine Black
B H, 1/2 oz. Diamine Orange B, 1/2 oz. Naphthol Blue Black, and
1/2 oz. Formyl Violet.
_Navy Blue_.--Use 1-1/4 lb. Union Black S, 3 lb. Diamine Black B H,
1/2 oz. Naphthol Blue Black, 1/2 lb. Formyl Violet S 4 B, and
2-1/2 oz. Alkaline Blue B.
_Red Plum_.--Use a dye-bath containing 2-1/2 lb. Oxydiamine Violet B
and 3-1/4 oz. Formyl Violet S 4 B.
_Dark Green_.--A fine shade can be dyed in a bath containing 3 lb.
Diamine Green B and 1-1/2 lb. Diamine Black H W.
_Dark Slate_.--Use 4 lb. Diamine Black H W, 2 oz. Naphthol Blue Black,
and 3 oz. Azo Red A.
_Sage_.--Use a dye-bath containing 4 lb. Diamine Bronze G and
1-1/4 oz. Naphthol Blue Black.
_Dark Brown_.--A fine dark shade is got from 2-1/2 lb. Diamine
Brown V, and 2 oz. Naphthol Blue Black.
_Peacock Green_.--Use 3-3/4 lb. Diamine Steel Blue L, 13 oz. Diamine
Fast Yellow B, 14-1/2 oz. Thiocarmine R, and 2-1/4 oz. Indian Yellow G
in a bath of 4 lb. Glauber's salt per gallon of dye-liquor.
_Dark Sea Green_.--Use 9 oz. Diamine Steel Blue L, 3-3/4 oz. Diamine
Fast Yellow B, 1/2 oz. Diamine Orange G, 1-1/4 o
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