US298998A - Peospbe moistlstet - Google Patents

Peospbe moistlstet Download PDF

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US298998A
US298998A US298998DA US298998A US 298998 A US298998 A US 298998A US 298998D A US298998D A US 298998DA US 298998 A US298998 A US 298998A
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bath
peospbe
moistlstet
brown
diamine
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    • CCHEMISTRY; METALLURGY
    • C09DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09BORGANIC DYES OR CLOSELY-RELATED COMPOUNDS FOR PRODUCING DYES, e.g. PIGMENTS; MORDANTS; LAKES
    • C09B51/00Nitro or nitroso dyes

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  • rnosrnr. MONNET, on ST. FONS, nnonn, FRANCE, ASSIGNOR TO THE sooin'rn r. MONNET ET 0115., on SAME PLACE.
  • My invention relates to a method of dyeing materials brown with the aid of aromatic diamines, and especially those having the prefix para, or their salts, such as chlorhydrate of paraphenylene diamine and paratoluylene diainine. WVith these I am enabled by direct oxidation on the'fiber or fabrics to produce a beautiful solid brown dye, varying in tint from cinnamon brown to a very dark brown.
  • the material to be dyed is placed in this bath and allowed to remain long enough to become thoroughly impregnated with the solution. It may then be removed and the excess of liquid removed by wringing.
  • the material may be previously mordanted or not, according to its nature. Cotton, either in fabric or raw, should be mordanted with sumac in the usual way to obtain very deep shades.
  • the chlorateof -p0tassa bath is employed whenI wish to develop the color slowly with the aid of moist air.
  • the bath of chromate develops the color more rapidly,especially when heated. This bath is usually made with live hundred grams bichromate of I potassa in one hundred liters of water.
  • the textile material impregnated with the solution of salt of diamine is placed in the OX- idizing-bath, which is maintained at any suit able temperature.
  • the color develops immediately, and by successive immersions first in the diamine bath and then in the developingbath, and when necessary the exposure to the air between immersions, the shade or tint deepens more and more until the proper depth is obtained.
  • the dyed material may then be rinsed and dried or treated with other preparations, according to their nature, as will be well understood.

Description

turns smarts Pa'rnivr @rrrcn.
rnosrnr. MONNET, on ST. FONS, nnonn, FRANCE, ASSIGNOR TO THE sooin'rn r. MONNET ET 0115., on SAME PLACE.
OBTAINING BROWN DYES FRGEVI THE AROMATIC DIAIVIINES.
SPECIFICATION forming part of Letters Patent No. 298,998, dated May 20, 1884.
Application filed January :26, 1884. (N specimens.)
To all whom it may concern..-
Be it known that I, Pnosrnn Monnn'r, a citizen of the French Republic, residing at St. Fons, Rhone, France, have invented a Process for Producing a Brown Dye on Materials by Direct Oxidation thereon of Arematic Diamines or their Salts, of which the following is a specification.
My invention relates to a method of dyeing materials brown with the aid of aromatic diamines, and especially those having the prefix para, or their salts, such as chlorhydrate of paraphenylene diamine and paratoluylene diainine. WVith these I am enabled by direct oxidation on the'fiber or fabrics to produce a magnificent solid brown dye, varying in tint from cinnamon brown to a very dark brown.
In carrying out my invention I proceed as follows: Among all the salts of the diamines I prefer for my purpose the chlorhydrate of paraphenylene diamine, partly because of its comparative cheapness, and partly because of the beauty of the shades of color obtained. The materials to be dyed are first submitted to the usual treatment, according to their nature, to adapt them to receive dyes of any kind whatever. These are then placed in a bath more or less concentrated, according to the results to be obtained, but ordinarily composed as follows:' Three hundred grams of chlorhydrate of paraphenylene diamine are added to fifty grains of sulphuric acid at 66 Bau m, and this is diluted with one hundred liters of water. The material to be dyed is placed in this bath and allowed to remain long enough to become thoroughly impregnated with the solution. It may then be removed and the excess of liquid removed by wringing. The material may be previously mordanted or not, according to its nature. Cotton, either in fabric or raw, should be mordanted with sumac in the usual way to obtain very deep shades. I now employ an oxidizing-bath formed either of chlorate of potassa and a small quantity of salts of vanadium, or a solution of bichromate of potassa, or any other oxidizingbath. The chlorateof -p0tassa bath is employed whenI wish to develop the color slowly with the aid of moist air. The bath of chromate develops the color more rapidly,especially when heated. This bath is usually made with live hundred grams bichromate of I potassa in one hundred liters of water.
The textile material impregnated with the solution of salt of diamine is placed in the OX- idizing-bath, which is maintained at any suit able temperature. The color develops immediately, and by successive immersions first in the diamine bath and then in the developingbath, and when necessary the exposure to the air between immersions, the shade or tint deepens more and more until the proper depth is obtained. The dyed material may then be rinsed and dried or treated with other preparations, according to their nature, as will be well understood.
. For printing on fabrics I employ a concentrated solution of chlorhydrate of paraphenylene diamine added to the thickening or mucilaginous vehicle while cold, together with the necessary quantity of chlorate of potassa to develop the dye, and some traces of salts of vanadium. The color develops to its maximum in moist air. The fabric is afterward dried and treated in the usual way.
I am able to dye by my method all fibrous and textile materials such as cotton, wool, silks, hair, paper, &c.eithcr in fabric or fiber.
I am aware that it is not new to produce a blue dye-stuff or pigment by the action of diethylparaphenylene-diamine chloride upon an alkaline solution of phenol, nor to produce a purple dyestuff from thiodiphenylamine. This has been done before, and the methods employed differ both in result and kind from my method.
Having thus described my invention, I claim-- The herein-described method of dyeing ma- 9o tcrials brown, which consists in saturating the material in a bath composed of chlorhydrate of paraphenylene diamine, or its specified equivalent, sulphuric acid, and water, then wringing, and then treating the material to an oxidizing-bath for developing the color,
substantially as set forth.
In witness whereof I have hereunto signed my name in the presence of two subscribing witnesses.
PROSPER MONNET.
\Vitnesses:
JEAN l. A. MARTIN, CLEMENT ROLAND.
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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2018146503A1 (en) 2017-02-07 2018-08-16 Ar. On Gmbh Recovery device and method for damaged large-scale aircraft

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2018146503A1 (en) 2017-02-07 2018-08-16 Ar. On Gmbh Recovery device and method for damaged large-scale aircraft

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