DE48465C - Process for the preparation of I azo dyes using the sulphonic acids of sulphurized paratoluidine obtainable according to patent no - Google Patents

Process for the preparation of I azo dyes using the sulphonic acids of sulphurized paratoluidine obtainable according to patent no

Info

Publication number
DE48465C
DE48465C DENDAT48465D DE48465DA DE48465C DE 48465 C DE48465 C DE 48465C DE NDAT48465 D DENDAT48465 D DE NDAT48465D DE 48465D A DE48465D A DE 48465DA DE 48465 C DE48465 C DE 48465C
Authority
DE
Germany
Prior art keywords
preparation
paratoluidine
sulphurized
azo dyes
sulphonic acids
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 - Lifetime
Application number
DENDAT48465D
Other languages
German (de)
Original Assignee
DAHL & Co. in Barmen. |
Publication of DE48465C publication Critical patent/DE48465C/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

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
    • C09B29/00Monoazo dyes prepared by diazotising and coupling
    • C09B29/0025Monoazo dyes prepared by diazotising and coupling from diazotized amino heterocyclic compounds
    • 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
    • C09B67/00Influencing the physical, e.g. the dyeing or printing properties of dyestuffs without chemical reactions, e.g. by treating with solvents grinding or grinding assistants, coating of pigments or dyes; Process features in the making of dyestuff preparations; Dyestuff preparations of a special physical nature, e.g. tablets, films

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Paper (AREA)

Description

KAISERLICHESIMPERIAL

PATENTAMT.PATENT OFFICE.

PATENTSCHRIFTPATENT LETTERING

KLASSE 22: Farbstoffe, Firnisse, Lacke.CLASS 22: dyes, varnishes, lacquers.

DAHL & CO. in BARMEN.DAHL & CO. in BARMEN.

Patentirt im Deutschen Reiche vom 21. August 1888 ab.Patented in the German Empire on August 21, 1888.

Die schwer löslichen Sulfosäuren des geschwefelten p-Toluidins, welche in der Patentschrift Nr. 47102 beschrieben worden sind, vermögen sich nach vorhergegangener Diazotirung mit Salicylsäure, ß-Naphtol-a-monosulfosäure und analogen Verbindungen auch aufserhalb der Faser zu Farbstoffen zu vereinigen, und zwar entstehen mit Salicylsäure intensiv gelb, mit. ß-Naphtol-a-monosulfosäure schön scharlochroth färbende, auf Baumwolle ohne vorheriges Beizen fixirbare Farbstoffe.The sparingly soluble sulfonic acids of sulfurized p-toluidine, which are described in the patent No. 47102 can be obtained after previous diazotization with salicylic acid, ß-naphthol-a-monosulfonic acid and to combine analogous compounds outside the fiber to form dyes, namely, with salicylic acid, intensely yellow, with. ß-Naphtol-a-monosulfonic acid beautiful dyes that stain sharp red and can be fixed on cotton without prior pickling.

Zur Darstellung eines Baumwollgelb aus genannten Sulfosäuren und Salicylsäuren verfährt man z. B. folgendermafsen:Proceeds to produce a cotton yellow from the sulphonic acids and salicylic acids mentioned one z. B. as follows:

10 kg des Natronsalzes der Thio-p-toluidinsulfosäuren (Patent Nr. 47102) werden in 500 1 Wasser gelöst, mit 30 kg concentrirter Salzsäure (spec. Gew. 1,19) versetzt und mit 3 kg Natriumnitrit in concentrirter wässeriger Lösung diazotirt. Diese Lösung läfst man in eine Mischung von 5 kg Salicylsäure und 30 kg Soda (calcinirt), gelöst in 200 1 Wasser, allmälig einfliefsen. Der nach zwölf Stunden gebildete Farbstoff wird, wie üblich, aufgearbeitet. Er bildet ein braunrothes Pulver, welches sich in Wasser mit brauner Farbe löst; die Lösung wird durch Säuren flockig hellgelb gefällt.10 kg of the sodium salt of thio-p-toluidinsulfonic acids (Patent No. 47102) are dissolved in 500 liters of water with 30 kg of concentrated hydrochloric acid (spec. wt. 1.19) are added and 3 kg of sodium nitrite are added diazotized in concentrated aqueous solution. This solution is poured into a mixture of Gradually flow in 5 kg of salicylic acid and 30 kg of soda (calcined), dissolved in 200 liters of water. Of the Dye formed after twelve hours is worked up as usual. It forms a reddish brown Powder which dissolves in water with a brown color; the solution is precipitated in a flaky light yellow color by the acids.

Die anderen erwähnten Farbstoffe erhält man, wenn man die angegebene Menge Salicylsäure durch 20 kg ß-naphtol-a- oder ß-naphtolß-monosulfosaures Natron ersetzt.The other dyes mentioned are obtained by adding the specified amount of salicylic acid with 20 kg of ß-naphtol-a- or ß-naphtolß-monosulfosaures Soda replaced.

Claims (1)

Pa tent-Anspruch:Patent claim: Verfahren zur Darstellung gelber bis rother substantiver Farbstoffe, darin bestehend, dafs die Sulfosäure des geschwefelten ρ-Toluidine, welche in dem Patent Nr. 47102 beschrieben worden ist, diazotirt und mit Salicylsäure, ß-Naphtol-α- oder ß-Naphtol-ß-monosulfosäure combinirt wird.Process for the preparation of yellow to red substantive dyes, consisting in that the sulfonic acid of sulfurized ρ-toluidine, which is described in Patent No. 47102 has been diazotized and with salicylic acid, ß-naphtol-α- or ß-naphtol-ß-monosulfonic acid is combined.
DENDAT48465D Process for the preparation of I azo dyes using the sulphonic acids of sulphurized paratoluidine obtainable according to patent no Expired - Lifetime DE48465C (en)

Publications (1)

Publication Number Publication Date
DE48465C true DE48465C (en)

Family

ID=323443

Family Applications (1)

Application Number Title Priority Date Filing Date
DENDAT48465D Expired - Lifetime DE48465C (en) Process for the preparation of I azo dyes using the sulphonic acids of sulphurized paratoluidine obtainable according to patent no

Country Status (1)

Country Link
DE (1) DE48465C (en)

Similar Documents

Publication Publication Date Title
DE48465C (en) Process for the preparation of I azo dyes using the sulphonic acids of sulphurized paratoluidine obtainable according to patent no
DE174548C (en)
DE41095C (en) Innovation in the process for the preparation of mixed azo dyes from benzidine BEZW. Tolidine and /? - naphthylamine disulfonic acid R
DE102532C (en)
DE116351C (en)
DE152862C (en)
DE46737C (en) Process for the preparation of disazo dyes by combining amidoazo compounds in pairs
DE52596C (en) Process for the preparation of disazo dyes from p-diamidodiphenylene ketoxime
DE251479C (en)
DE86071C (en)
DE258654C (en)
DE215371C (en)
DE174106C (en)
DE82240C (en)
DE63951C (en) Process for the preparation of a red azo dye from dehydrothio-m-xylidine
DE423090C (en) Process for the preparation of aminoazo compounds
DE46501C (en) Innovation in the process for the representation of brown dyes, which dye cotton directly
DE216904C (en)
DE63597C (en) Process for the preparation of a blue direct coloring disazo dye from dianisidine and dioxynaphthalene monosulfonic acid
DE186257C (en)
DE844629C (en) Process for the preparation of new o-oxyazo dyes
DE296991C (en)
DE270942C (en)
DE63567C (en) Process for converting the disazo dyes from azoxyaniline into trisazo dyes, which are derived from diamidooxyazobenzene
DE114262C (en)