DE318956C - Process for the preparation of post-chromable triarylmethane dyes - Google Patents

Process for the preparation of post-chromable triarylmethane dyes

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Publication number
DE318956C
DE318956C DE1914318956D DE318956DD DE318956C DE 318956 C DE318956 C DE 318956C DE 1914318956 D DE1914318956 D DE 1914318956D DE 318956D D DE318956D D DE 318956DD DE 318956 C DE318956 C DE 318956C
Authority
DE
Germany
Prior art keywords
dyes
post
chromable
preparation
triarylmethane dyes
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
DE1914318956D
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German (de)
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.)
Bayer AG
Original Assignee
Farbenfabriken Vorm Friedr Bayer and Co
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 Farbenfabriken Vorm Friedr Bayer and Co filed Critical Farbenfabriken Vorm Friedr Bayer and Co
Application granted granted Critical
Publication of DE318956C publication Critical patent/DE318956C/en
Expired legal-status Critical Current

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Classifications

    • CCHEMISTRY; METALLURGY
    • C09DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09BORGANIC DYES OR CLOSELY-RELATED COMPOUNDS FOR PRODUCING DYES, e.g. PIGMENTS; MORDANTS; LAKES
    • C09B11/00Diaryl- or thriarylmethane dyes
    • C09B11/04Diaryl- or thriarylmethane dyes derived from triarylmethanes, i.e. central C-atom is substituted by amino, cyano, alkyl
    • C09B11/10Amino derivatives of triarylmethanes
    • C09B11/22Amino derivatives of triarylmethanes containing OH groups bound to an aryl nucleus and their ethers and esters

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  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)

Description

Verfahren zur Darstellung nachchromierbarer Triarylmethanfarbstoffe. Es wurde gefunden, daß die nach dem Verfahren des Patents 2$7003 -erhältlichen nachchromierbären Farbstoffe, welche durch, Kondensation der sulfierten harbstoffe aus Benz= aldehyden und aromatischen Oxycarbonsäuren mit aromatischen Aminen gewonnen werden können, durch Su.lfieren in. neue Farbstoffe übergeführt werden, die. beim Zeugdruck gegenüber den nicht sulfierten Ausgangsstoffen ein durchaus verschiedenes Verhalten z@e@igen. Während die letzteren Farbstoffe im Baumwolldruck nur schwache; stumpfe und unegale Nuancen liefern und deshalb für diesen Zweck nicht verwendet werden können, geben die neuen durch Sulfierung erhältlichen Farbstoffe sehr klare, egale Drucke von weit mehr als doppelter 'Stärke.Process for the preparation of post-chromable triarylmethane dyes. It has been found that the post-chrome plating bears obtainable by the method of patent $ 2,7003 Dyes, which by, condensation of the sulfated urea from benz = aldehydes and aromatic oxycarboxylic acids can be obtained with aromatic amines, be converted by su.lfieren in. new dyes, the. when printing stuff opposite show a completely different behavior to the non-sulfated starting materials. While the latter dyes are only weak in cotton printing; blunt and irregular Provide nuances and therefore cannot be used for this purpose, give the new dyes obtainable by sulphonation are very clear, level prints of far more than double the strength.

Aus den amerikanischen Patentschriften 995494 und 1042498 ist es bekannt; Triaryl_-rnetha.nfarbstoffe, die wahrscheinlich mit den in dem Patent 287003 beschriebenen identisch sind, in konzentrierter Schwefelsäure aufzulösen. Unter diesen Bedingungen tritt jedoch eine Sulfierung der betreffenden. Farbstoffe nicht ein; denn beim Verdünnen der so erhältlichen schwefelsauren Lösungen mit Wasser fallen die unveränderten Farbstoffe wieder aus.It is known from American patents 995494 and 1042498; Triaryl chemical dyes, probably identical to those described in the 287003 patent, to be dissolved in concentrated sulfuric acid. Under these conditions, however, a sulphonation of the relevant occurs. Dyes not one; because when the sulfuric acid solutions obtainable in this way are diluted with water, the unchanged dyes precipitate again.

Beispiel. i oo Teile des nach Patent 287003, Beispiel 3, erhaltenen Farbstoffs in ioo prozentiger Schwefelsäure gelöst, werden mit 8o Teilen 65 prozentigem Oleum versetzt und so- länge gerührt, bis eine Probe in Wasser vollkommen löslich- ist. Die Schmelze wird dann auf Fis gegossen und der abgeschiedene Farbstoff abäesaugt. Fr ist in Wasser leicht löslich, und auf Baumwolle gedruckt liefert er sehr kräftige; lebhafte, violette Töne.Example. i oo parts of that obtained according to Patent 287003, Example 3 Dye dissolved in 100 percent sulfuric acid, 80 parts are 65 percent Oleum is added and the mixture is stirred until a sample is completely soluble in water. is. The melt is then poured onto Fis and the deposited dye is sucked off. Fr is easily soluble in water, and when printed on cotton it is very strong; lively, purple tones.

Ähnlich, jedoch rotstichiger, drucken die entsprechenden Farbstoffe; welche statt des 1)-Toliiidinrestes, z. B. den Rest des p-Chloranilins, 2-Chlor-4-toluidins, as.-m-Yylidins, m-Toluidins oder m-Chloranilins enthalten, während das mit Hilfe von ß-Naphtylämin gewonnene Produkt einen blaueren . Druck liefert als der p-Toluidinfarbstoff.The corresponding dyes print similarly, but with a more reddish cast; which instead of the 1) -Toliiidinrestes, z. B. the remainder of the p-chloroaniline, 2-chloro-4-toluidine, as.-m-yylidins, m-toluidins or m-chloroanilines, while the with the help the product obtained from ß-naphthylamine has a bluer color. Pressure provides as the p-toluidine dye.

Entsprechende Farbstoffe erhält man, wenn man Ausgangsstoffe verwendet, die statt der beiden ö-Kresotinsäurereste solche einer anderen aromatischen o-Oxycarbonsäure oder. die Reste zweier verschiedener aromatischer o-Oxycarbonsäuren enthalten.Corresponding dyes are obtained when starting materials are used instead of the two δ-cresotinic acid residues, those of another aromatic o-oxycarboxylic acid or. contain the residues of two different aromatic o-oxycarboxylic acids.

Claims (1)

PATRNT-ANSPRUCH Verfahren zu.rDarstellung nachchromierbarer Triarylmethanfarbstoffe, darin bestehend, d'aß man die nach dem Verfahren des ' Patents 287003 erhältlichen nächchrorriie.rbareri Farbstoffe mit sülfierenden Mitteln behandelt.PATRNT CLAIM Process for the preparation of post-chromable triarylmethane dyes, consisting in the fact that those obtainable by the method of patent 287003 are available nachchrorriie.rbareni dyes treated with sulphurous agents.
DE1914318956D 1914-10-14 1914-10-14 Process for the preparation of post-chromable triarylmethane dyes Expired DE318956C (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE318956T 1914-10-14

Publications (1)

Publication Number Publication Date
DE318956C true DE318956C (en) 1920-02-28

Family

ID=6151342

Family Applications (1)

Application Number Title Priority Date Filing Date
DE1914318956D Expired DE318956C (en) 1914-10-14 1914-10-14 Process for the preparation of post-chromable triarylmethane dyes

Country Status (1)

Country Link
DE (1) DE318956C (en)

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