AT42403B - Process for the representation of substantive cotton dyes. - Google Patents
Process for the representation of substantive cotton dyes.Info
- Publication number
- AT42403B AT42403B AT42403DA AT42403B AT 42403 B AT42403 B AT 42403B AT 42403D A AT42403D A AT 42403DA AT 42403 B AT42403 B AT 42403B
- Authority
- AT
- Austria
- Prior art keywords
- representation
- cotton dyes
- molecule
- dyes
- substantive
- Prior art date
Links
Landscapes
- Coloring (AREA)
Description
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Verfahren zur Darstellung von substantiven Baumwollfarbstoffen.
Es sind bereits direkte Baumwollfarbstoffe beschrieben, die sich auf der Faser diazotieren und entwickeln lassen, zu deren Dars@ellung man tetrazotierte p-Diamine mit Sulfosäuren von Naphtylaminen, Naphtolen, Aminonaphtolen oder Dioxynaphtalinen einerseits und mit p-Xylidin, o-Aminophenoläther etc. andererseits kuppelt.
I s wurde nun gefunden, dass man durch Ersatz des p-Xylidins in dem obengenannten Verfahren durch ein Molekül eines solchen monoacetylierten m-Diamins oder eines Derivates, in denen die Parastellung zu der freien Aminogruppe unbesetzt ist, und unter VerwendungeinesMolekülseinerAcidylperiaminonaphtolsulfosäurealsandereKompenente zu wertvollen direkten Baumwollfarbstoffen gelangt, die sich ebenfalls auf der Faser dia- zotieren und entwickeln lassen. Vor den bekannten Farbstoffen zeichnen sich die neuen Produkte dadurch aus, dass die auf der Faser entwickelten Färbungen eine viel grössere Klarheit besitzen und sich in vorzüglicher Weise ätzen lassen.
Beispiel.
224 Teile Dianisidin werden in bekannter Weise diazotiert und die Tetrazover- vorhindung erst mit einer Lösung von 405 Teilen 1-Acetylamino-8-naphtol-4.6-disulfosaurem
EMI1.1
**WARNUNG** Ende DESC Feld kannt Anfang CLMS uberlappen**.
<Desc / Clms Page number 1>
Process for the representation of substantive cotton dyes.
Direct cotton dyes have already been described which can be diazotized and developed on the fiber, for the presentation of which tetrazotized p-diamines with sulfonic acids of naphthylamines, naphthols, aminonaphthols or dioxynaphthalenes on the one hand and with p-xylidine, o-aminophenol ethers, etc. on the other hand clutch.
It has now been found that by replacing the p-xylidine in the above-mentioned process with a molecule of such a monoacetylated m-diamine or a derivative in which the para position to the free amino group is unoccupied, and using a molecule of its acidylperiaminonaphthol sulfonic acid as other components, valuable direct cotton dyes are obtained which can also be diacetated and developed on the fiber. The new products stand out from the known dyes in that the colorations developed on the fiber have a much greater clarity and can be etched in an excellent way.
Example.
224 parts of dianisidine are diazotized in a known manner, and the tetrazover is first provided with a solution of 405 parts of 1-acetylamino-8-naphthol-4,6-disulfonic acid
EMI1.1
** WARNING ** End of DESC field may overlap beginning of CLMS **.
Claims (1)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE42403X | 1908-02-18 |
Publications (1)
Publication Number | Publication Date |
---|---|
AT42403B true AT42403B (en) | 1910-05-25 |
Family
ID=5624049
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
AT42403D AT42403B (en) | 1908-02-18 | 1909-02-10 | Process for the representation of substantive cotton dyes. |
Country Status (1)
Country | Link |
---|---|
AT (1) | AT42403B (en) |
-
1909
- 1909-02-10 AT AT42403D patent/AT42403B/en active
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