DE461440C - Process for achieving level coloring with dyes on skins, hair and the like. like - Google Patents

Process for achieving level coloring with dyes on skins, hair and the like. like

Info

Publication number
DE461440C
DE461440C DEI27621D DEI0027621D DE461440C DE 461440 C DE461440 C DE 461440C DE I27621 D DEI27621 D DE I27621D DE I0027621 D DEI0027621 D DE I0027621D DE 461440 C DE461440 C DE 461440C
Authority
DE
Germany
Prior art keywords
hair
skins
dyes
achieving level
level coloring
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
DEI27621D
Other languages
German (de)
Inventor
Dr Heinrich Wagner
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 DEI27621D priority Critical patent/DE461440C/en
Application granted granted Critical
Publication of DE461440C publication Critical patent/DE461440C/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
    • D06P3/30—Material containing basic nitrogen containing amide groups furs feathers, dead hair, furskins, pelts
    • D06P3/3041—Material containing basic nitrogen containing amide groups furs feathers, dead hair, furskins, pelts using vat, sulfur or indigo dyes

Landscapes

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

Description

Verfahren zur-Erzielung egaler Ausfärbungen mit Küpenfarbstoffen auf Fellen, Haaren u. dgl. Aus der Patentschrift 298 3q:8 ist es bekannt, daß man mit Küpenfarbstoffen Pelze aus schwach alkalischer bis neutraler Flotte färben kann. Hierbei treten aber häufig Obelstände auf, die sich in unegaler und stufenweiser Anfärbung des Haares äußern. Diese Unegalität ist darauf zurückzuführen, da',' durch den Gerbeprozeß und durch die verschiedenen Behandlungen, die das Fell bis zur Farbreife durchmacht, im Wollhaar eine Veränderung hervorgerufen wird, welche ein gleichmäßiges Aufziehen der Küpenfarbstoffe verhindert; dies tritt besonders dann störend in Erscheinung, wenn mit mehreren Küpenfarbstoffen gemeinsam gefärbt wird.Process for achieving level coloring with vat dyes on pelts, hair and the like. From patent specification 298 3q: 8 it is known that furs from weakly alkaline to neutral liquor can be dyed with vat dyes. Here, however, obstruction often occurs, which is expressed in uneven and gradual coloring of the hair. This unevenness is due to the fact that the tanning process and the various treatments that the fur undergoes until it is fully colored, causes a change in the wool which prevents the vat dyes from being absorbed evenly; this is particularly troublesome when dyeing is carried out together with several vat dyes.

Es hat sich gezeigt, daß man das unegale Aufziehen der Küpenfarbstoffe verhindern kann, wenn man das Haar vor dem Färbeprozeß einer Vorbehandlung unterwirft. Diese Vorbehandlung besteht in einer mehrstündigen Einwirkung von verdünnten anorganischen. oder organischen Säuren, z. B. Säuren der Fettreihe oder Sulfosäuren der aromatischen Reihe oder sauren Salzen.It has been shown that the uneven drawing up of the vat dyes can prevent if the hair is subjected to a pretreatment before the dyeing process. This pretreatment consists of several hours of exposure to diluted inorganic materials. or organic acids, e.g. B. acids of the fatty series or sulfonic acids of the aromatic Series or acid salts.

B e i s p i e l. Ein nach der üblichen Methode zugerichtetes Fell wird nach vorangegangener Tötung, zweckmäßig unter Zusatz eines Netzmittels, in eine Lösung gebracht, die neben Kochsalz etwas konzentrierte Schwefelsäure enthält; z. B. kommt eine o,r bis o,3prozentige Lösung in Betracht. Die Konzentration der Schwefelsäure richtet sich nach der Stärke des Leders und nach der Dichte des Wollhaares. In diesem Bade verbleibt das Fell bei Zimmertemperatur bis zu 20 Stunden; hierauf wird gespült, das Fell in einer schwachen Ammoniaklösung von überschüssiger Säure befreit und nach gründlichem Waschen in das schwach alkalische bis neutrale Färbebad eingegangen. Zur Erhöhung der Widerstandsfähigkeit des Leders ist eine Vorbehandlu-ng mit Chromgerbesalzen empfehlenswert. -Example. A hide prepared according to the usual method after previous killing, expediently with the addition of a wetting agent, in brought a solution that contains a little concentrated sulfuric acid in addition to table salt; z. B. is an o, r to o, 3 percent solution. The concentration of Sulfuric acid depends on the thickness of the leather and the density of the wool. The fur remains in this bath at room temperature for up to 20 hours; on this is rinsed, the fur in a weak ammonia solution of excess acid freed and after thorough washing in the weakly alkaline to neutral dye bath received. A pretreatment is necessary to increase the resistance of the leather Recommended with chrome tanning salts. -

Claims (1)

PATENTANSPRUCH: Verfahren zur- Erzielung egaler Ausfärbungen mit Küpenfarbstoffen auf Fellen, Haaren u. dgl., dadurch gekennzeichnet, daß man diese Stoffe einer Vorbehandlung mit Lösungen von anorganischen oder organischen Säuren oder sauren Salzen unterwirft.PATENT CLAIM: Process for achieving level coloring with vat dyes on skins, hair and the like, characterized in that these substances are pretreated Subjected with solutions of inorganic or organic acids or acid salts.
DEI27621D 1926-03-09 1926-03-09 Process for achieving level coloring with dyes on skins, hair and the like. like Expired DE461440C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DEI27621D DE461440C (en) 1926-03-09 1926-03-09 Process for achieving level coloring with dyes on skins, hair and the like. like

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEI27621D DE461440C (en) 1926-03-09 1926-03-09 Process for achieving level coloring with dyes on skins, hair and the like. like

Publications (1)

Publication Number Publication Date
DE461440C true DE461440C (en) 1928-06-19

Family

ID=7186813

Family Applications (1)

Application Number Title Priority Date Filing Date
DEI27621D Expired DE461440C (en) 1926-03-09 1926-03-09 Process for achieving level coloring with dyes on skins, hair and the like. like

Country Status (1)

Country Link
DE (1) DE461440C (en)

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