A substance used to treat leather or other materials before dyeing

Usage examples of mordant.

Other dye-stuffs, such as fustic, Persian berries and Alizarine yellow, are best dyed on a basic chrome mordant, which is effected when tartar or oxalic acid is the assistant mordant used, or when some other form of chrome compound than bichrome is employed.

Carlyle worked more in the manner of an etcher, the mordant acid eating deep into the plate.

The man in question was Arthur Mordant, and, at this moment, Okey was eyeing Mordant, along with the bank.

While Klebbert guided Mordant into a waiting automobile, an old model but of expensive make, Okey listened attentively to the comments of the bone fide salesmen who sat in the line of hotel chairs.

THE drummers were still chatting about old Mordant, but Okey was no longer a listener.

In checking on Mordant, The Shadow learned something that Okey Shurn had found out, a week before: that Mordant had been visited prior to the bank robbery, by a physician named Dr.

Such an anosmic filter would be both a mordant political statement and a genuine boon to Mankind.

I thought frantically, and then I was instantly disabused of that notion as I saw Mordant himself, same size as before, descend screeching toward the giant drabit.

It is obvious that those which, like Magenta or Saffranine, have a strong affinity for the wool fibre must be dyed differently from those which, like Alizarine and Gambine, have no direct affinity for the wool fibre, and, further, which require the aid of mordants before they can be dyed, and on the character of which mordants the colour that is fixed on the fibre depends.

Other dye-stuffs, such as fustic, Persian berries and Alizarine yellow, are best dyed on a basic chrome mordant, which is effected when tartar or oxalic acid is the assistant mordant used, or when some other form of chrome compound than bichrome is employed.

For dyeing with the Alizarine colours, using chrome fluoride as the mordant, it can be applied with fair success.

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.

In addition to water and fuel, the dyers needed copper vats for preparing dyebaths, wooden vats for dyeing the fabric, furnaces for heating the water and boiling the dyes, hooks, rods, barrows and winches to move the fabric around, tools for grinding the dyestuffs, the dyestuffs themselves, mordants, and a building large enough to use and store it all.

Dyes and mordants were generally used at near boiling temperatures, filling the dyehouse with steam and fumes.

In pursuance of this plan nothing is said of the composition and properties of the various dyes, mordants, chemicals, etc.