DE476457C - Process for dyeing leather - Google Patents

Process for dyeing leather

Info

Publication number
DE476457C
DE476457C DEI30849D DEI0030849D DE476457C DE 476457 C DE476457 C DE 476457C DE I30849 D DEI30849 D DE I30849D DE I0030849 D DEI0030849 D DE I0030849D DE 476457 C DE476457 C DE 476457C
Authority
DE
Germany
Prior art keywords
dyeing leather
leather
dyeing
good
sulfo
Prior art date
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
Application number
DEI30849D
Other languages
German (de)
Inventor
Dr Hans Grotowsky
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.)
IG Farbenindustrie AG
Original Assignee
IG Farbenindustrie AG
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by IG Farbenindustrie AG filed Critical IG Farbenindustrie AG
Priority to DEI30849D priority Critical patent/DE476457C/en
Application granted granted Critical
Publication of DE476457C publication Critical patent/DE476457C/en
Expired legal-status Critical Current

Links

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
    • D06P3/32—Material containing basic nitrogen containing amide groups leather skins

Landscapes

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

Description

Verfahren zum Färben von Leder Es wurde gefunden, daß die Alkalisalze der Sulfo- und Carbonsäuren der Benzalpyrazo-Tone, d. h. der Kondensationsprodukte aus aromatischen Aldehyden und Phenylmethylpyrazolon sowie dessen Substitutionäprodukte und Analogen zum Färben von Leder hervorragend geeignet sind. Sie geben satte leuchtende Töne von guter Alkali- und Säureechtheit und ebenso guter Lichtechtheit.Process for dyeing leather It has been found that the alkali salts the sulfo and carboxylic acids of the benzalpyrazo clays, d. H. of the condensation products from aromatic aldehydes and phenylmethylpyrazolone and its substitution products and analogs are eminently suitable for dyeing leather. They give a rich glow Shades of good alkali and acid fastness and just as good light fastness.

Beispiel Das Kondensationsprodukt aus p-Diäthylaminobenzaldeliyd und i-3'-methyl-4.'-oxy-5'-carboxyplienyl-3-methyl-5-pyrazolon wird in einer Menge von 1,5 Prozent, bezogen auf das Gewicht des Leders, in neutralem oderschwach saurem Bade bei etwa 55° 20 Minuten lang auf Chromleder gefärbt. Man erhält ein lebhaftes Orange von guten Echtheitseigenschaften.Example The condensation product from p-Diethylaminobenzaldeliyd and i-3'-methyl-4 .'-oxy-5'-carboxyplienyl-3-methyl-5-pyrazolone is used in an amount of 1.5 percent, based on the weight of the leather, in neutral or weakly acidic Bath dyed on chrome leather at around 55 ° for 20 minutes. You get a lively one Orange with good fastness properties.

Tanninleder färbt man zweckmäßig bei etwa 40' in neutralem Bade und erhält außergewöhnlich tiefe Töne.Tannin leather is appropriately dyed at around 40 'in a neutral bath and receives exceptionally deep tones.

Claims (1)

PATENTANSPRUCH: Verfahren zum Färben von Leder, bestehend in der Verwendung-- der Sulfo-oder Carbonsäuren von Kondensationsprodukten aus aromatischen Aldehyden und Pyrazolonen.PATENT CLAIM: Process for dyeing leather, consisting of the use - of the sulfo or carboxylic acids of condensation products from aromatic aldehydes and pyrazolones.
DEI30849D 1927-04-05 1927-04-05 Process for dyeing leather Expired DE476457C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DEI30849D DE476457C (en) 1927-04-05 1927-04-05 Process for dyeing leather

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEI30849D DE476457C (en) 1927-04-05 1927-04-05 Process for dyeing leather

Publications (1)

Publication Number Publication Date
DE476457C true DE476457C (en) 1929-05-17

Family

ID=7187722

Family Applications (1)

Application Number Title Priority Date Filing Date
DEI30849D Expired DE476457C (en) 1927-04-05 1927-04-05 Process for dyeing leather

Country Status (1)

Country Link
DE (1) DE476457C (en)

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