DE108504C - - Google Patents

Description

IMPERIAL

PATENT OFFICE.

PATENT LETTERING

CLASS 8: Bleaching, dyeing, fabric printing and finishing.

WOLDEMAR GANDOURINE in MÜLHAUSEN i. E.

. by means of caustic alkalis.

Patented in the German Empire on November 10, 1898.

The new process is based on the well-known fact that diazo-p-nitroaniline contributes The presence of strong alkalis does not interfere with phenols, e.g. B. Naphtol, coupling, an observation, which up to now has not been used in the calico printing plant for the production of reserves had been.

According to the new process, the cotton peat is prepared as usual for p-nitroaniline red with ß-Naphtol or Naphtol R, dries in the hot flue and prints one of the the following reserves.

A. Weifs reserves.

Weifs reserve 1.
ι kg caustic soda 50 pCt.,
160 g Britishgum solution 650: 1 1.

White reserve 2.
r kg white reserve 1,
140 g caustic soda, dry,
200 g caustic soda 50 pct.,
100 g glycerin.

White reserve 3.
Y ₄ 1 dextrin water 650: 1 1,
1 sodium hydroxide solution 5: 4 (25Og: 1il water).

White reserve 4.
Y ₄ 1 Indian gum water 300: 1 1,
ι 1 sodium hydroxide solution 5: 4.

Weifs reserve 5. Y ₄ 1 Leiogomme water 650: 1 1, ι 1 sodium hydroxide solution 5: 4.

Weifs reserve 6. Y ₄ 1 wheat flour-water 250: 1 1, ι 1 sodium hydroxide solution 5: 4.

Weifs reserve 7th starch water 150g: 1 1, ι 1 sodium hydroxide solution 5: 4.

¹ U Weifs- reserve 8. Y ₄ 1 burnt starch water 650: 1 1, ι 1 sodium hydroxide solution 5: 4.

These reserves can be used with advantage for patterns that are difficult to print (e.g. with very fine or not deep engraving) glycerine alone or glycerine with castor oil or also Add olive oil, e.g. B.

Weifs reserve 9. ι 1 Weifs reserve 6, 100 g glycerine,
■ 100 g olive or castor oil.

After one of these reserves has been printed, the goods can either be left without drying go through the diazo-ρ-nitraniline solution (only for single-colored white reserves), or they can first as usual between the

The printing press drying plates are not strong, but can be dried well.

The goods are then passed through the diazo-p-nitroaniline solution on a padder.

After the diazo passage, the goods should immediately be washed well with cold water and then soaped, chlorinated and dried. One can also according to the diazo first passage through weak hydrochloric acid (2 ⁰ B.) pass through and then wash and how quit before.

B. Indigo Blue Reserves. Blue reserve 1 (medium blue).

. \ ι kg white reserve 1, (150 g caustic soda (powdered)

are rubbed together until they are completely dissolved.

1 indigo in 2 percent paste (e.g. pure indigo from B. A. S. F).

100 g glycerine,
200 g glucose,
20 cc water

become through weak. Heating dissolved.

A and then C are poured very slowly into B.

Blue reserve 2 (dark blue). . j ι kg Weifs reserve 1,

150 g caustic soda, dry.

1 indigo in 2 percent paste.

40 g glycerine,
300 g glucose,
40 cc of water.

Mix everything as before.

It prints the Blue Reserve 1 or 2 on the dissected with naphthol substance does not dry strongly and attenuates with wet steam _^8/4 z to ι minute. B. in the steaming apparatus for the Schlieper tree see Turkish red indigo article.

The pieces then pass through ordinary diazo-p-nitroaniline solution, similar to the knows reserves, can be then acidified (2 procentige sulfuric acid), strongly washed with cold water, soaped at 50 ⁰ C. and dried. <

C. Reserves with nouns cotton dyes.

All nouns cotton dye H. those which dye cotton without stain and which are not decomposed by caustic alkalis, can be used for the color reserves Find use. E.g. chloramine yellow (Bayer), chrysamine G (Bayer), chrysophenine (Bayer), Diamine Fast Yellow A (Cassella), Azorcein (Gay, Picard & Monnet), Diamine Scarlet B (Cassella), geranine (Bayer), diamine blue 2B (Cassella), diamine blue BX (Cassella), diamine blue black E (Cassella), Diaminogen B (Cassella), pure diamine blue FF (Cassella), diamine brown M (Cassella)

u. s. w.

Thickened lye, ι kg white reserve (e.g. 6), g glycerin.

Yellow reserve 3.

20 g chloramine yellow,

100 cc water,

ι kg of thickened lye.

Yellow reserve 4. 40 g Chrysamine G, 100 cc W ater ^r. ι kg of thickened lye.

Yellow reserve 5. 20 g of chrysophenin, 100 cc of water, ι kg of thickened lye.

Yellow reserve 6. 20 g diamine real yellow A, 100 cc water, ι kg of thickened lye.

Rosa Reserve 7. 5 g Azorcei'n, 100 cc water, ι kg of thickened lye.

Rosa Reserve 8. 12 g diamine scarlet B, ido cc water, ι kg of thickened lye.

Rosa reserve 9. 5 g geranin G, 190 cc water, ι kg thickened lye.

Blue reserve 10. 30 g diamine blue 2 B, 100 cc water, ι kg of thickened lye.

Blue reserve 11. 30 g diamine blue BX, 100 cc water, ι kg of thickened lye. ,

Blue reserve 12 g diamine blue black E, g sodium hydroxide solution 36 ⁰ B, g glycerin, cc water, ι kg thickened lye.

Blue reserve 13. 30 g Diaminogen B, ι ο g Diaminreinblau F F, 200 cc water, ι kg thickened lye.

Blue reserve ^. 30 g diamine pure blue F F, 100 cc water, ι kg of thickened lye.

Brown reserve 15.

40 g diamine brown M,

100 cc water,

ι kg of thickened lye.

Green reserve (dark green) 2 1 yellow reserve 4, ι 1 blue reserve 14.

Green reserve (medium green) 4 1 yellow reserve 3, ι 1 blue reserve 14.

After printing, it is dried and then passed through the para-nitroaniline-diazo bath, then without to be washed with a chalk bath (30 g: 1 1.) This is followed by washing, light acidification, washing and drying. These reserves can be printed with alkaline copper solution as needed where they gain in authenticity. For example:

Blue reserve with copper g pure diamine blue F F, cc water,

ι kg of thickened lye, g of alkaline copper solution.

Alkaline copper solution. g copper acetate crystallizes, cc water,
cc glycerine,
ι kg of sodium hydroxide solution 5: 4 (1250 g: 1 1).

D. Chrome Yellow Reserves. Chrome yellow reserve ig. One prints on the naphthol fabric

Alkaline lead solution. g lead nitrate (or equivalent amount

Lead acetate or. Lead chloride), g glycerine,
cc water,
ι kg of Weifs reserve (e.g. 6).

Then one passes through the diazo bath, chalk (30 g: 1), sodium dichromate (50 g: 1 1) and washes at the end.

Chrome yellow reserve 20.
400 g chrome yellow in 5% dough, ι kg white reserve (e.g. 6).

This reserve is printed on the naphthol material, then passed through the diazo bath, 5 percent Sulfuric acid and washes.

E. Prussian blue reserves.

Berlin blue reserve 21.
One prints on the naphthol fabric

Alkaline iron solution.
160 g iron nitrate 50 ⁰ B.,
160 g glycerine,
ι kg of Weifs reserve (e.g. 6).

Then you pass through the diazo bath, chalk bath (30 g: 1), water and acidified yellow blood liquor salt bath (50 g yellow blood liquor salt, -f- 10 cc hydrochloric acid 19 ⁰ B. to 1 1 water).

Berlin blue reserve 22.

750 g of a mixture of 1 kg of iron nitrate 50 ⁰ B. and ι kg of glycerol.

900 g of a mixture of 500 g of ferrocyan sodium and 1 kg of white reserve 6th

1200 g white reserve (e.g. 6).

The reserve is printed on naphthol material, passed through the diazo bath, chalk, water and 5 percent sulfuric acid ..

By mixing the chrome and iron colors you can create a nice olive reserve achieve. E.g.

Olive Reserve 23.
3 kg of a mixture of

300 g crystallized lead nitrate,

100 cc water,

ι kg white reserve 6.

ι kg of a mixture of

160 g iron nitrate 50 ⁰ B.,

160 g glycerine, -

ι kg white reserve 6.

The reserve is printed on the naphthol material, passed through the diazo bath, chalk Sodium dichromate bath (50 g: 1 1), water, a ferrocyanic potassium bath (as in reserve 21) and water again.

By mixing indigo and chrome colors, you can also achieve olive reserves. ^ For example:

Mixture A:

Mixture B:

Olive reserve 24.

ι kg of white reserve 6,

250 g pure indigo in 2%

gem dough (BAS F),
60 g glycerine,
200 g glucose,
20 cc water.

500 g crystallized lead nitrate,

250 g glycerine,

ι kg white reserve 6.

Mix the mixture A and B in equal parts, print on the naphthol material, steam with wet steam for a minute, pass through the diazo bath, sodium dichromate bath (50 g: ι 1) and water.

The new procedure differs completely both in principle and in Execution of the well-known method by Schlaepfer, Wenner & Co. (see La über, Zeugdruck, Vol. 2, p. 416,), which refers to the reducing effect of glucose in one based on alkaline means, with finished Paranitranilin-Roth according to known reaction in little colored amidonaphtol and paranitraniline that are easy to remove from the fibers (and this latter further in diamidoazoxybenzene, diamidohydrazobenzene, p-phenylenediamine u. s. w.) passes. The execution is accordingly that of printing the finished, colored red goods with etching.

In contrast, the new process is used to reserve Paranitranilin-Roth and is based on the coupling-disrupting effect of caustic alkali, with no reduction at all takes place. The strongly alkaline but no reducing agent is used for printing Reserve the goods prepared with 8-naphthol, on which the dye is still being formed did not take place. The purpose of the reserve is to prevent this dye from being formed later Preventing diazo bath passage on the printed areas, however, would not be able to prevent the azo dye that has already formed remove, as it does the stains of Schlaepfer, when he & Co. does.

Claims (2)

Patent Claims: 1. Process for the production of white or colored reserves under Para-Nitranilin-Roth by means of caustic alkalis, consisting in printing the latter with or without Addition of dyes, which are based on cotton in the presence of caustic alkalis let fasten. 2. As a special embodiment for the colored reserves according to claim 1 a) for blue reserves: the imprint of caustic alkali, indigo and glucose, whereby the indigo is fixed by steaming briefly; b) for colored reserves: the use of substantive dyes, which by caustic alkali are not decomposed and are fixed in the presence of the same; c) for colored reserves: the use of chrome yellow and Prussian blue.