DE332476C - Process for the use of cleavage products of the protein bodies - Google Patents

Description

Process for the use of cleavage products of the protein bodies. According to the patent 330133, the use of decomposition products of the protein bodies, like protalbic and lysalbinic acid and the like or their salts, each in dye baths Kind of diverse advantages. According to patents 331234 and 331484 this Use also has particular advantages when dyeing with vat dyes.

It has now been found that except for dyeing in general, -like it is carried out in the patent 330133 and with the actual vat dyes, to which patents 331234 and 331484 refer, the application of these cleavage products the protein body is particularly advantageous with such sulfur pigments which in the reduced state is more or less easily reoxidizable Leuco dyes show sufficient affinity to animal fibers if they are used applies in linked form.

This use can generally be made according to nature of these dyes according to modified proportions and those in the patents 331234 and 331484 given working methods, this makes the application special made possible with good protection of the animal fiber.

The examples below are intended to illustrate the way in which these vats are set up and to be led, explain. Animal fiber vat.

2.5 to 7.5 parts of sulfur black T extra (@ct. Ges. F. Anilinfabrikation, Berlin) are concentrated with the addition of 1 part by volume of 40 ° Be sodium hydroxide solution with 0.75 to 2.25 parts of hydrosulfite. Powder completely vat and the solution for use is diluted with enough water, which has been de-oxygenated with a little hydrosulphite, that it contains 1 g of color reduced to 100 ccm. Then 2 to 6 parts of crystallized ammonium formate, 10 to 20 parts of crystallized Glauber's salt and 1 to 3 parts of glutin (glue) product are added: the liquor ratio is between 1: 40 to 100.

One dyes for '/ "hour at 75 °, oxidized by leaving it in a warm, humid place Air, flushes and washes out thoroughly.

Vegetable fiber vat.

7.5 parts of sulfur black T extra are concentrated with the addition of 1 part by volume of sodium hydroxide solution of 36 ° B6 with 3 parts of hydrosulfite. Powder completely vat and the solution for use is diluted with enough water, which has been de-oxygenated with a little hydrosulphite, that it contains 1 g of color reduced to 100 ccm. Then 20 parts of crystallized Glauber's salt and 0.5 parts of glutin (glue) product are added.

The liquor ratio is taken between i: 4.o to ioo. _ __;.

One for-3.1 hours at 6 °, oxidized by iegenla, so-called fin warm, moist air, rinses and washes out thoroughly.

Manufacture of glutin (glue) product. The glutin (glue) product are obtained by treating 100 parts in a water bath for a few hours Glutin (glue), calculated free of ash and water, with 15 parts of sodium hydrate and 50o parts of water.

After the cleavage has ended, the heating is stopped, cooling down let and "filtered. After filtering this crude solution, it becomes cold with formic acid neutralized and either evaporated to dryness in vacuo or concentrated in a steam bath.

With the same benefit one can proceed in such a way that one produces ready-to-use leuco preparations from the sulfur dyes concerned, whereby an easier and safer work is made possible.

Claims (1)

PATENT ^ CLAIMS: i. Modification of the procedure for using Cleavage products of protein bodies according to patent 33rz34, addition to patent 330133, characterized in that these cleavage products together with the more or less easily reoxidizable Leukov compounds of such sulfur dyes, which in this condition have sufficient affinity to animal fiber, applied will. z. Embodiment of the method according to claim i, characterized in that that for the production of ready-to-use caustic alkali and sulfur alkali-free, neutral Leuco preparations or leuco preparations of a certain alkalinity or acidity according to claim i obtained dye vats with acids, acidic salts or neutral, volatile alkali containing salts of organic acids.