CH181702A - Process for through-dyeing leather. - Google Patents

Process for through-dyeing leather.

Info

Publication number
CH181702A
CH181702A CH181702DA CH181702A CH 181702 A CH181702 A CH 181702A CH 181702D A CH181702D A CH 181702DA CH 181702 A CH181702 A CH 181702A
Authority
CH
Switzerland
Prior art keywords
leather
amino
dyeing leather
dyeing
sulfonic acid
Prior art date
Application number
Other languages
German (de)
Inventor
A-G J R Geigy
Original Assignee
Geigy Ag J R
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 Geigy Ag J R filed Critical Geigy Ag J R
Publication of CH181702A publication Critical patent/CH181702A/en

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Description

  

  Verfahren zum     DurchMrben        Fon    Leder.    <B>Es</B> wurde gefunden, dass es gelingt, Leder,  insbesondere Chromleder, vollständig durch  zufärben, wenn man dazu den blauen Farb  stoff aus dianotierter     5-N-Athyl-ss-oxyäthyl-          amino    - 2 -     a.minobenzol    - 1 -     sulfonsäure    und       8-Amino    - 1-     oxynaphthalin-3,6-disulfonsäure     verwendet. Oberfläche und Kern des     Leders     werden rein blau gefärbt.

      <I>Beispiel:</I>  Die neutralisierten Felle werden im     Fa.ss     mit 150 bis 200% Wasser von     65'C    ver  setzt; das Fass wird laufen gelassen und eine  Auflösung des Farbstoffes aus dianotierter       5-N-Sthyl-ss-oxyäthylamino-2-aminobenzol-l-          sulfonsäure    und     8-Amino-l-oxynaphthalin-          3,6-disulfonsäure    durch die hohle Achse zu  gegeben. Im allgemeinen genügen 1 bis 2    des auf das Falzgewicht berechneten Farb  stoffes, um kräftige     Durchfärbungen    zu er  zielen. Nach 45     14linuten    setzt man den       Fatliquor    zu und bewegt weitere 45 Minuten.

    Handelt es sich um sehr schwere Häute, so  ist die Färbedauer entsprechend zu ver  längern.



  Method of Tanning Fon Leather. <B> It </B> has been found that leather, in particular chrome leather, can be completely dyed by adding the blue dye made from dianotized 5-N-ethyl-ss-oxyethyl-amino-2-a.minobenzene - 1 - sulfonic acid and 8-amino - 1-oxynaphthalene-3,6-disulfonic acid used. The surface and core of the leather are colored pure blue.

      <I> Example: </I> The neutralized skins are mixed with 150 to 200% water at 65 ° C in the company; the barrel is allowed to run and a solution of the dye from dianotized 5-N-Sthyl-ss-oxyethylamino-2-aminobenzene-1-sulfonic acid and 8-amino-1-oxynaphthalene-3,6-disulfonic acid is added through the hollow axis. In general, 1 to 2 of the dyestuff calculated on the shaved weight is sufficient to achieve strong through-coloring. After 45 minutes, add the fat liquor and stir for another 45 minutes.

    If the hides are very heavy, the dyeing time must be extended accordingly.

Claims (1)

PATENTANSPRUCH: Verfahren zum Durchfärben von Leder, insbesondere Chromleder, dadurch gekenn zeichnet, dass man dazu den blauen Farb stoff aus dia.zotierter 5-N-Athyl-ss-oxyäthyl- amino - 2 - aminobenzol - 1 - sulfonsäure und 8-Amino -1- oxynapbthalin-3,6-disulfonsäure verwendet. Oberfläche und gern des Leders werden rein blau gefärbt. PATENT CLAIM: Process for dyeing leather, in particular chrome leather, characterized in that the blue dye from dia.zotierter 5-N-ethyl-ss-oxyethyl-amino - 2 - aminobenzene - 1 - sulfonic acid and 8-amino - 1-oxynapbthalene-3,6-disulfonic acid is used. The surface and the leather are colored pure blue.
CH181702D 1933-11-18 1934-11-14 Process for through-dyeing leather. CH181702A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE181702X 1933-11-18
CH179042T 1934-11-14

Publications (1)

Publication Number Publication Date
CH181702A true CH181702A (en) 1935-12-31

Family

ID=25720242

Family Applications (1)

Application Number Title Priority Date Filing Date
CH181702D CH181702A (en) 1933-11-18 1934-11-14 Process for through-dyeing leather.

Country Status (1)

Country Link
CH (1) CH181702A (en)

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