US1416646A - Process for dyeing skins, hairs, and the like - Google Patents

Process for dyeing skins, hairs, and the like Download PDF

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Publication number
US1416646A
US1416646A US520696A US52069621A US1416646A US 1416646 A US1416646 A US 1416646A US 520696 A US520696 A US 520696A US 52069621 A US52069621 A US 52069621A US 1416646 A US1416646 A US 1416646A
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United States
Prior art keywords
hairs
skins
dyeing
berlin
germany
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Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
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US520696A
Inventor
Kaltwasser Oskar
Oehrn Hans
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Agfa Gevaert NV
Original Assignee
Aktiengesellschaft fuer Anilinfabrikation GmbH
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Filing date
Publication date
Application filed by Aktiengesellschaft fuer Anilinfabrikation GmbH filed Critical Aktiengesellschaft fuer Anilinfabrikation GmbH
Priority to US520696A priority Critical patent/US1416646A/en
Application granted granted Critical
Publication of US1416646A publication Critical patent/US1416646A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06P—DYEING OR PRINTING TEXTILES; DYEING LEATHER, FURS OR SOLID MACROMOLECULAR SUBSTANCES IN ANY FORM
    • D06P3/00—Special processes of dyeing or printing textiles, or dyeing leather, furs, or solid macromolecular substances in any form, classified according to the material treated
    • D06P3/02—Material containing basic nitrogen
    • D06P3/04—Material containing basic nitrogen containing amide groups
    • D06P3/30—Material containing basic nitrogen containing amide groups furs feathers, dead hair, furskins, pelts
    • D06P3/305—Material containing basic nitrogen containing amide groups furs feathers, dead hair, furskins, pelts with oxidation dyes

Definitions

  • PROCESS FOR DYEING SKINS, HATES, AND THE LIKE PROCESS FOR DYEING SKINS, HATES, AND THE LIKE.
  • T 0 all 107mmit may concern Be it known that we, OSKAR KALTwAssER and Hans OEHRN, the first a citizen of the German Republic, the second owns no citizenship, residing at Berlin, Germany, and Berlin-Gharlottenburg, Germany, our P. 0. address being Urbanstr. 178, Berlin, Germany, and Mommsenstr. 13, Berlin-Charlottenburg, Germany, have invented certain new and useful Improvements in Processes for Dyeing Skins, Hairs, and the like, of which the following is a specification.
  • the skin to be dyed is washed for about an hour in water containing to grams of calcined sodium carbonate per liter, well rinsed and then dyed at ordinary temperature during 3 to 5 hours in a bath which rontains per liter 2 grams of 5-nitr0-2' amino-l-oxybenzene, 2 grams of ammonia of strength and grams of hydrogen peroxide of 3% strength: Then the skin is Specification of Letters Patent.

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Coloring (AREA)

Description

UNITED STATES PATENT OSKAR KALTWASSER, OI? BERLIN, AND HANS OEHRN, OF BEBLIN-CHABLOTTENBURG. GERMANY, ASSIGNORS '10 ACTIEN GESELLSCHAFT Fi l TB, ANILIN FABRIKA'IION,
F BERLIN, GERMANY.
PROCESS FOR DYEING SKINS, HATES, AND THE LIKE.
No Drawing.
T 0 all 107mmit may concern Be it known that we, OSKAR KALTwAssER and Hans OEHRN, the first a citizen of the German Republic, the second owns no citizenship, residing at Berlin, Germany, and Berlin-Gharlottenburg, Germany, our P. 0. address being Urbanstr. 178, Berlin, Germany, and Mommsenstr. 13, Berlin-Charlottenburg, Germany, have invented certain new and useful Improvements in Processes for Dyeing Skins, Hairs, and the like, of which the following is a specification.
\Ve have found that the -nitro-2-amino- 1-oXyderivatives of the benzene series are excellently fitted for dyeing skins, hairs and the like morda-nted or not in the presence of a suitable oxydizing agent, such as hydrogen-peroxide. Thus are obtained yellow to brown dyeings of a great intensity and an excellent fastness to light.
The following example illustrates the inyention. without limiting it.
The skin to be dyed is washed for about an hour in water containing to grams of calcined sodium carbonate per liter, well rinsed and then dyed at ordinary temperature during 3 to 5 hours in a bath which rontains per liter 2 grams of 5-nitr0-2' amino-l-oxybenzene, 2 grams of ammonia of strength and grams of hydrogen peroxide of 3% strength: Then the skin is Specification of Letters Patent.
Patented May in, 1922.
Application filed December 7, 1921. Serial No. 520,696.
rinsed and worked up as usual. A clear yellow tint is the result.
011 skins previously mordanted with ironmordants yellow tints are also obtained; on skins mordanted with chromiumor coppermordants brown dyeings are produced. In
like manner substitution products of 5 nitro 2 amino 1 oxybenzene, such as its homologues, may be employed.
Having now described our invention and the manner in which it may be performed what we claim is 1. The herein-described process for dyeing skins, hairs and like materials which comprises treating the material in the presence of a suitable oxidizing agent in a bath containing a, 5-nitro-2-amino-1-oxy derivative of the benzene series.
2. The herein-described process for dyeing skins, hairs and like materials which comprises treating the 'mordanted material in the presence of a suitable oxidizing agent in a bath containing 5-nitro-2-amino1-oxybenzene.
In testimony whereof we aflix our signatures in presence of two witnesses.
Dr. Phil. OSKAR KALTWASSER. HANS OEHRN. lVitnesses:
I'IERMANN KIRoHHorr, FRITZ SOHILK.
US520696A 1921-12-07 1921-12-07 Process for dyeing skins, hairs, and the like Expired - Lifetime US1416646A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US520696A US1416646A (en) 1921-12-07 1921-12-07 Process for dyeing skins, hairs, and the like

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US520696A US1416646A (en) 1921-12-07 1921-12-07 Process for dyeing skins, hairs, and the like

Publications (1)

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US1416646A true US1416646A (en) 1922-05-16

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4637821A (en) * 1981-10-08 1987-01-20 L'oreal Tinctorial composition for keratin fibres, based on nitrated benzene dyestuffs

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4637821A (en) * 1981-10-08 1987-01-20 L'oreal Tinctorial composition for keratin fibres, based on nitrated benzene dyestuffs

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