The blue is largely used for cotton dyeing, producing on this fibre when properlymordanted an indigo shade.
Gallocyanin, as it is called, imparts a violet blue shade to mordanted cotton.
With silk and wool it gives a brighter colour if mordanted with alum or tin.
Logwood, also, if mordantedwith alum, gives a mauve colour; if mordanted with chrome, it gives a blue.
Wool mordanted with 4% of ferrous sulphate and 10% tartar and dyed in a separate bath with weld with 8% chalk, takes a good olive yellow.
Without a mordant the colour is quite fast, but if the wool is mordanted with alum a brighter and richer colour is got.
The wool is mordanted, then dyed, then mordantedagain (saddened).
Wool mordanted with chrome should not be exposed to light, but should be kept well covered with the liquid while being mordanted, else it is liable to dye unevenly.
The silk is mordanted over night with alum, by steeping it in a cold concentrated solution; wash well and dye in a separate bath with 50 per cent.
The silk is mordanted in the usual way with alum, washed and dyed in a separate bath of 20 to 40% weld, with a small quantity of soap added.
The bright yellow lichen, growing on rocks and walls, and old roofs, dyes a fine plum colour, if the wool is mordanted first with Bichromate of Potash.
With alum mordanted cotton, the colour is a yellowish brown, with tin it becomes still yellower.
With cream of tartar it is used sometimes as an ordinary mordant before dyeing, but the colours so produced have no advantage over colours mordanted by easier methods\.
Enter the mordanted wool, raise to boil and boil gently for one hour.
Make the dye bath with 30 to 50% of bedstraw roots and boil the mordanted wool in it for an hour.
Dye with equal quantities of Cudbear and Logwood, the wool having been mordanted with chrome.
An ink so prepared develops its intensity of colour only after some exposure; and after it has partly sunk into the paper it becomes oxidized there, and so mordanted into the fibre.
Another gold ink depends upon the formation of purple of Cassius; the linen is mordanted with stannous chloride, and the gold applied as a gummy solution of the chloride.
The goods are alumed, rinsed, next mordanted with solution of tin, rinsed again, and then turned through the Brazil dye bath.
Cotton and linen, on the other hand, are not dyed so readily; they need first to be mordanted or impregnated with the mordant tannic acid.
Chrome mordanted wool should be dyed without delay, as it is rather sensitive to light, especially the yellow sort, which gradually changes into the green sort of chromed wool.
The next stage in the process is the actual dyeing operations, which is done by immersing the mordantedwool in a bath of the dye-stuff or mixture of dye-stuffs.
Some dye-stuffs, such as logwood for blacks, work best when the wool is mordanted with chromic acid, which is effected when sulphuric acid is the assistant mordant.
The process is as follows: The wool is first mordantedby boiling for one and a half hours in a bath of 3 lb.
The heat is raised to the boil, and is then maintained for one and a half hours, after which the mordanted wool is lifted and well rinsed, when it is ready for the dye-bath.
The wool is first mordanted by boiling for one and a half hours with 3 lb.
They may be combined with logwood, as they will dye with equal facility on mordantedand unmordanted wool.
Fine blacks are got if after oiling the cotton is treated with sumac or tannic acid, then mordanted with iron and dyed with alizarine as usual.
It is best carried out by preparing a cold bath, entering the prepared or mordanted cotton in this and heating slowly up.
However, it was found out that if the cotton be prepared or mordanted (as it is called) with tannic acid or with any substance containing that compound they could be used for dyeing cotton.
After bleaching the mark by either reagent, the iron of the ink remainsmordanted on the paper, and the mark may be restored by treatment with a dilute solution of galls, tannic acid, or acidulated ferro- cyanide.
Silk is dyed in a similar manner to wool, the fibre being mordanted by the ordinary methods and then dyed in a separate bath.
Wool is mordanted with ferrous sulphate and tartar (3% of each) and dyed in a neutral bath.
Silk may be often mordanted in the same manner as wool, but as a rule it is treated like cotton.
The dyeing operation consists in working the mordanted material in a solution of the necessary colouring matter, the dyebath being gradually raised to the boiling point.
During this operation the wool at first attracts chromic acid, which is gradually reduced to chromium chromate, so that the mordanted fibre has finally a pale olive-yellow tint.
Jute is dyed without any previous preparation, since it behaves like a tannin-mordanted fibre, attracting the basic colours direct.
They are dyed on chromium-mordanted wool, silk or cotton, and yield dark purplish or greenish blues, according to the particular brand employed.
Mr. Thomson had further alluded to the color obtained with logwood or logwood extract and wool mordanted with bichromate of potash, and seemed to be under the impression that the color thus obtained was not black, but blue.
If the leather is still greasy on the surface, a further quantity of soda or borax is given, after which the leather is well washed in warm water, sumached, rinsed to remove the particles of sumach, and mordanted with titanium salts.
The leather is first mordanted with dye-wood extract, of which a suitable mixture is logwood and fustic, or logwood and quercitron, in the proportion of 4 lb.
In finishing for =coloured glace=, the skins are mordanted before dyeing by the use of dyewood extracts, antimony and titanium salts being used as fixing agents.
In addition, the pelt has been mordanted with tannin.
In dyeing, the skins are first mordanted with a filtered infusion of leaf sumach, used at 110 deg.
The application of some substance of a fatty nature to a great degree prevents this, and the skin can be killed, mordanted and dyed, and then come out soft and flexible.
If it is not feasible to dye the mordanted skins at once, as is often the case, the skins are kept moist, and under no circumstances allowed to dry.
Under no circumstances should mordanted skins be permitted to dry, for they would be unfit for use again.
This operation must always be gone through before the skins can be mordanted or dyed, for if it were neglected, very uneven and uncertain results would be obtained.
Black on Sheared Muskrat The skins are killed with soda, soured, and washed, then chrome mordanted for 6 hours.
For dyeing on cotton with the aniline colours, the cloth or yarn is steeped in sumac or tannic acid, dyed in the colour, and then fixed by tin; or it may be steeped in sumac and mordanted with tin, and then dyed.
To stuffs mordanted with alum it gives various shades of violet and purple, according to the proportions of the materials.
When employed for the latter purpose it is used in the form of an aqueous decoction, mordantedwith alum or chloride of tin.
It dies wool and silk, mordanted with common salt, or sal ammoniac, a fugitive yellow.
On these matters, too, information is not lacking.
The unequal distribution of the rainfall is no doubt partly the result of the almost total absence of forest.
The measures hitherto fitfully employed to safeguard the coast had been repeatedly shown to be inadequate.
In order to have continuous daylight for building the Great Wall, he is said to have been inspired with the happy device of transfixing the sun with a needle, thus preventing it from moving.
Among his writings are "Records of Southern Travel" and a description of Weihaiwei.
One of the gravest dangers overhanging China at the present day is the threatened triumph of mere theory over the results of accumulated experience.
The functions of a Chinese district magistrate have been described by some Europeans as somewhat analogous to those of an English mayor, but the analogy is very misleading.
The cotton must be mordantedwith a mixture of the acetates of iron and zinc.
Violet dye--is given in the logwood bath, to ivory previously mordanted for a short time with solution of tin.
Hence the mordanted goods, in such a case, should be hung up to dry in a gradual manner, and when oxygen is necessary to the fixation of the base, they should be largely exposed to the atmosphere.
Wool or silk may also receive a light blue ground from the indigo vat, then be mordanted with alum, washed, and turned through a madder bath till the wished-for brown be brought out.
Preparatory to being dyed, each skin is sewed together edgewise, with the grain on the outside, and it is then mordanted either with a solution of tin, or with alum water.
The above list will hopefully give you a few useful examples demonstrating the appropriate usage of "mordanted" in a variety of sentences. We hope that you will now be able to make sentences using this word.
