A digestible substance used to give color to food

Usage examples of colouring.

Another division of the group includes a few colouring matters of recent introduction, like Azo green, Alizarine yellow, Galloflavine, Anthracene yellow, Flavazol, etc.

When sulphuric acid is used as the assistant along with the bichrome, then there is formed on the wool fibre a deposit of chromic acid and chromium oxide, and this exerts an oxidising effect on the colouring matter or dye-stuff, which in some cases, as the Alizarine Blue, Alizarine Yellow, etc.

Perhaps if Rachel Lake had been in Belgravia, leading a town life, the matter would have taken no such dark colouring and portentous proportions.

Undoubtedly the Bismarckian tactics of publishing inspired articles in all parts of Germany were employed, and their colouring left no doubt on the public mind that the much-talked-of Slavonic danger had assumed an acute form.

Working as he does with dye-stuffs of unknown colouring power, which may vary from time to time with every fresh batch of material, it is evident that, although the same quantities may be used at all times, at one time a deeper shade may be obtained than at another, and as it is impossible to see what is going to be the result, and if by mischance the shade does not come deep enough it cannot well be rectified by adding a quantity of dye-wood to the bath, because the mordant in the latter will prevent the colouring matter from being properly extracted, and only a part of that which is extracted is fixed on the wool, the rest being thrown away in the dye-bath, and partly on the particles of wood themselves, when logwood, camwood, etc.

The interior surfaces were adorned all over by mosaics or paintings in the higher parts of the edifice, and below with incrustations of marble slabs, which were frequently of very beautiful varieties, and disposed so that, although in one surface, the colouring formed a series of large panels.

Bergman was of opinion that the blue precipitate contains only between a fifth and a sixth part of its weight of iron, and though subsequent experiments tend to show that, in some cases at least, the proportion of iron is much greater, yet upon the whole it is certainly true, that if the iron left by the stroke of a pen were joined to the colouring matter of phlogisticated alkali, the quantity of Prussian blue thence resulting would be much greater than the quantity of black matter originally contained in the ink deposited by the pen, though perhaps the body of colour might not be equally augmented.

This extra chrome bath fixes any colouring matter which may have been absorbed by the wool but not properly fixed by the mordant already on, it leads to fuller shades which are faster to rubbing and milling.

From the richness of its colouring, the elegance of its shape, and the agility of its movements, it is one of the most beautiful and interesting of our smaller mammals.

Uses of, and Ingredients used in the Preparation of Cosmetics -- Preparation of Perfumes by Pressure, Distillation, Maceration, Absorption or Enfleurage, and Extraction Methods -- Chemical and Animal Products used in the Preparation of Cosmetics -- Oils and Fats used in the Preparation of Cosmetics -- General Cosmetic Preparations -- Mouth Washes and Tooth Pastes -- Hair Dyes, Hair Restorers and Depilatories -- Cosmetic Adjuncts and Specialities -- Colouring Cosmetic Preparations -- Antiseptic Washes and Soaps -- Toilet and Hygienic Soaps -- Secret Preparations for Skin, Complexion, Teeth, Mouth, etc.

As they descended, they saw at a distance, on the right, one of the grand passes of the Pyrenees into Spain, gleaming with its battlements and towers to the splendour of the setting rays, yellow tops of woods colouring the steeps below, while far above aspired the snowy points of the mountains, still reflecting a rosy hue.

In the evening, Cummings unexpectedly dropped in to show me a meerschaum pipe he had won in a raffle in the City, and told me to handle it carefully, as it would spoil the colouring if the hand was moist.

Sparkling wine, that looseneth the tongue, and displayeth the verity, hath also the quality of colouring it.

But I finely feigning and colouring the matter for the time, did breake off his talk, and tooke him by the hand and sayd, Why tarry we?

I was enchanted with her exquisite bosom, which needed no colouring to make it more beautiful.