UERCITRON DYER'S BROOM HEA

places. The whole plant is used for dyeing except the ro

es more orange coloured yellows; with copper and iron, olive shades. The quantity of weld used must be determined by the depth of colour required. Two per cent of stannous chloride added to the mordant gives brilliancy and fastness to the colour. Bright and fast orange yellows are got by mordanting with 8 per cent stannous chloride instead of alum. With 6 per cent copper sulphate an

ral yellow dyes. It is cultivated for dyeing in France, German

OLD

60 per cent of weld in a separate bath. 3

YE

ommon salt deepens the colour. If alum is added to the dye bath, the col

OR

h weld. Add teaspoonful of tin to the dye bath. Boil in s

FU

he brightest yellows are got from it by mordanting with tin. With copper sulphate it yields olive colours (4 to 5 per cent copper sulphate and 3 to 4 per cent tartar). With ferrous sulphate darker olives are obtained (8 per ce

DYEING WIT

OLD

2 hours. Wash, and dye in a separate bath for 1 to 1-1/

OLD

hour and wash. Dye with 24 per cent fust

RIGHT

e for 1 to 1-1/2 hours, and 8 per cent of tartar

EENISH

3/4 hour and wash. Dye with 6 per cent fu

YE

ash after laying by for 2 days,

RM

tive colours and does not need any mordant. Cotton has a strong attraction for it, and is simply dyed by working in a solution of Turmeric at 60°C. for about 1/2 hour. With silk and wool it gives a brighter colour if

RCI

of oak growing in the United States and Central America. It was first introdu

unds of powdered bark (tied up in bag) as there were used of alum to prepare the wool, which is then to be turned in the boiling liquor until the colour appears to have taken sufficiently: and then about 1 lb. clean

tron bark, and is much used

OW (

alum. Dye wit

LAVIN OR QUER

or 45 minutes. In the meantime have mixed up 1/2 oz. Flavin and 1/2 oz. to 3/4 oz. Cochineal (according to depth of orange required) with 1

RB

rdant. The silk is worked at 50° to 60°C. in a solution of the dye wood slightly acidifie

'S B

uly and dried. It can be used with an alum and tartar mordant and gives a good brigh

IV

eaves dye a good fast ye

AT

for about half-an-hour. The wool, previously mordanted with alum or chrome according to the shade of yellow wanted, is put into the dye bath with the boiling liquor,

ON

of onion skins and boil for 30 minutes. This gives a good