AT65098B - Process for producing etchable dyeings on cotton. - Google Patents

Process for producing etchable dyeings on cotton.

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Publication number
AT65098B
AT65098B AT65098DA AT65098B AT 65098 B AT65098 B AT 65098B AT 65098D A AT65098D A AT 65098DA AT 65098 B AT65098 B AT 65098B
Authority
AT
Austria
Prior art keywords
cotton
etchable
dyeings
producing
parts
Prior art date
Application number
Other languages
German (de)
Original Assignee
Hoechst 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.)
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Publication date
Application filed by Hoechst Ag filed Critical Hoechst Ag
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Publication of AT65098B publication Critical patent/AT65098B/en

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     4. 264, Teile Benzidinmonosulfosäure   werden tetrazotiert,   15#3   Teile 4-Nitro-   - 1. 8-phenylendiamin,   gelöst in Salzsäure, hinzugefügt und langsam verdünnte Sodalösung zugetropft, bic die mineralsaure Reaktion verschwunden und die   Farbstoffbildung   beendet ist. Das braunrote abgeschiedene Zwischenprodukt wird abgesaugt und nach dem Anrühren mit Wasser in sodaalkalischer Lösung mit 18'9 Teilen 1-   (p-Aminophenyl-) S-methyJ-5-pyrazolon   gekuppelt. Der ziemlich schwer lösliche Farbstoff liefert, auf Baumwolle gefärbt und mit Nitrauilin entwickelt ein lebhaftes Orange. 



   5. 26'4 Teile   Benzidinmonosulfosäure   werden tetrazotiert und mit    18'9   Teilen l- (p-Aminophenyl-)3-methyl-5-pyrazolon zum Zwischenprodukt vereinigt. Nach beendeter Kupplung   l'misst   man dasselbe langsam einlaufen zu einer sodaalkalischen Lösung des Farbstoffes : Sulfanilsäure (diazotiert) + m-Phenylendiamin und isoliert den etwas schleimigen Farbstoff nach Zusatz von etwas Kochsalz in   metallglanzenden Kristallen. Auf   Baumwolle gefärbt und mit Nitranilin entwickelt, erhält man ein kräftiges Braun von vorzüglichen   Echtbeitseigenschaften.   
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     4. 264 parts of benzidine monosulfonic acid are tetrazotized, 15 # 3 parts of 4-nitro- 1. 8-phenylenediamine, dissolved in hydrochloric acid, are added and dilute soda solution is slowly added dropwise, bic the mineral acid reaction has disappeared and the dye formation has ended. The brown-red deposited intermediate product is filtered off with suction and, after stirring with water in a soda-alkaline solution, coupled with 18,9 parts of 1- (p-aminophenyl) S-methyl-5-pyrazolone. Dyed on cotton and developed with nitrauilin, the rather poorly soluble dye produces a vivid orange.



   5. 26'4 parts of benzidine monosulfonic acid are tetrazotized and combined with 18'9 parts of 1- (p-aminophenyl) 3-methyl-5-pyrazolone to form the intermediate. After the coupling is complete, it is slowly run into a soda-alkaline solution of the dye: sulfanilic acid (diazotized) + m-phenylenediamine and the somewhat slimy dye is isolated in shiny metallic crystals after adding a little common salt. Dyed on cotton and developed with nitroaniline, the result is a strong brown with excellent real working properties.
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Claims (1)

Verfahren zur Herstellung ätzbarer Färbungen auf Baumwolle, dadurch gekennzeichnet, dass man die aus tetrazotierten Diaminen mit 2 Molekülen eines Amino-l-arylpyrazolons, seiner Sulfo-und Karbonsäuren oder mit 1 Molekül eines Amino-i-aryl- pyrazolons, seiner Sulfo- und Karbonsäuren und 1 Molekül einer beliebigen anderen Komponente erhaltenen Farbstoffe auf der Faser mit Nitranilin entwickelt. Process for the production of etchable dyeings on cotton, characterized in that the tetrazotized diamines are mixed with 2 molecules of an amino-l-arylpyrazolone, its sulfo and carboxylic acids or with 1 molecule of an amino-i-arylpyrazolone, its sulfo and carboxylic acids and 1 molecule of any other component obtained dyes on the fiber developed with nitroaniline.
AT65098D 1912-04-11 1913-03-20 Process for producing etchable dyeings on cotton. AT65098B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE65098X 1912-04-11

Publications (1)

Publication Number Publication Date
AT65098B true AT65098B (en) 1914-06-10

Family

ID=5632729

Family Applications (1)

Application Number Title Priority Date Filing Date
AT65098D AT65098B (en) 1912-04-11 1913-03-20 Process for producing etchable dyeings on cotton.

Country Status (1)

Country Link
AT (1) AT65098B (en)

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