DE252771C - - Google Patents
Info
- Publication number
- DE252771C DE252771C DENDAT252771D DE252771DA DE252771C DE 252771 C DE252771 C DE 252771C DE NDAT252771 D DENDAT252771 D DE NDAT252771D DE 252771D A DE252771D A DE 252771DA DE 252771 C DE252771 C DE 252771C
- Authority
- DE
- Germany
- Prior art keywords
- color
- dinitrothioindigo
- black
- dye
- blue
- 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.)
- Active
Links
- 235000005940 Centaurea cyanus Nutrition 0.000 claims 1
- 240000004385 Centaurea cyanus Species 0.000 claims 1
- 229920000742 Cotton Polymers 0.000 claims 1
- 229910000831 Steel Inorganic materials 0.000 claims 1
- 210000002268 Wool Anatomy 0.000 claims 1
- 238000005658 halogenation reaction Methods 0.000 claims 1
- 239000000843 powder Substances 0.000 claims 1
- 239000010959 steel Substances 0.000 claims 1
- QAOWNCQODCNURD-UHFFFAOYSA-N sulfuric acid Substances OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 claims 1
- XTHPWXDJESJLNJ-UHFFFAOYSA-N sulfurochloridic acid Chemical compound OS(Cl)(=O)=O XTHPWXDJESJLNJ-UHFFFAOYSA-N 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- WQZGKKKJIJFFOK-GASJEMHNSA-N D-Glucose Natural products OC[C@H]1OC(O)[C@H](O)[C@@H](O)[C@@H]1O WQZGKKKJIJFFOK-GASJEMHNSA-N 0.000 description 1
- 241000854350 Enicospilus group Species 0.000 description 1
- GRVFOGOEDUUMBP-UHFFFAOYSA-N Sodium sulfide Chemical compound [Na+].[Na+].[S-2] GRVFOGOEDUUMBP-UHFFFAOYSA-N 0.000 description 1
- 229910052977 alkali metal sulfide Inorganic materials 0.000 description 1
- 125000003277 amino group Chemical group 0.000 description 1
- 230000000875 corresponding Effects 0.000 description 1
- 239000000975 dye Substances 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 239000008103 glucose Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 125000000449 nitro group Chemical group [O-][N+](*)=O 0.000 description 1
- -1 o-nitro-p-chlorophenylthioglycolic acid Chemical compound 0.000 description 1
- 125000001209 o-nitrophenyl group Chemical group [H]C1=C([H])C(*)=C(C([H])=C1[H])[N+]([O-])=O 0.000 description 1
- 239000003638 reducing agent Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- NINIDFKCEFEMDL-UHFFFAOYSA-N sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 1
- 239000011593 sulfur Substances 0.000 description 1
- 229910052717 sulfur Inorganic materials 0.000 description 1
- 239000000984 vat dye Substances 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09B—ORGANIC DYES OR CLOSELY-RELATED COMPOUNDS FOR PRODUCING DYES, e.g. PIGMENTS; MORDANTS; LAKES
- C09B7/00—Indigoid dyes
- C09B7/10—Bis-thionapthene indigos
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Coloring (AREA)
- Heat Sensitive Colour Forming Recording (AREA)
Description
KAISERLICHESIMPERIAL
PATENTAMT.PATENT OFFICE.
PATENTSCHRIFTPATENT LETTERING
- M 252771 -. KLASSE 22 e. GRUPPE - M 252771 -. CLASS 22 e. GROUP
Verfahren zur Darstellung von 7'7'-Diaminothioindigos.Process for the preparation of 7'7'-diaminothioindigos.
Patentiert im Deutschen Reiche vom 27. Juli 1910 ab.Patented in the German Empire on July 27, 1910.
auf Grund der Anmeldung in England vom 5. August 1909 anerkannt.recognized on the basis of registration in England on August 5, 1909.
Es wurde gefunden, daß, wenn man den 7 · 7'-Dinitrothioindigo sowie dessen Substitutionsprodukte, wie 7 · 7'-Dinitro-5 »5'-dichlorthioindigos mit Reduktionsmitteln, unter welchen die Alkalisulfide, alkalische Glucoselösungen usw. sich als besonders geeignet erweisen, behandelt, sich die Nitrogruppen zu Aminogruppen reduzieren lassen; es werden hierbei sehr wertvolle Küpenfarbstoffe erhalten, welche sich durch große Lichtechtheit und sonstige gute Echtheitseigenschaften auszeichnen und1 die Faser in der Küpe in grünlichgrauen bzw. blaugrauen Tönen anfärben. Diese Reduktionsprodukte sind als 7 · 7'-Diaminothioindigos aufzufassen; dieselben lassen sich diazotieren. 7 · 7'-Dinitrothioindigo sowie der 7 · 7'-Dinitro-5 · 5'-dichlorthioindigo können beispielsweise aus der o-Nitrophenyl- bzw. o-Nitro-p-chlorphenylthioglycolsäure durch Behandlung mit Chlorsulfonsäure gemäß der britischen Patentschrift 8162 vom Jahre 1907 erhalten werden.It has been found that if the 7 · 7'-dinitrothioindigo and its substitution products, such as 7 · 7'-dinitro-5 »5'-dichlorothioindigo, are used with reducing agents, among which the alkali metal sulfides, alkaline glucose solutions, etc., prove to be particularly suitable , treated, the nitro groups can be reduced to amino groups; This gives very valuable vat dyes which are distinguished by high lightfastness and other good fastness properties and 1 dye the fibers in the vat in greenish-gray or blue-gray tones. These reduction products are to be understood as 7 · 7'-diaminothioindigos; they can be diazotized. 7 7'-dinitrothioindigo and 7 7'-dinitro-5 5'-dichlorothioindigo can be obtained, for example, from o-nitrophenyl or o-nitro-p-chlorophenylthioglycolic acid by treatment with chlorosulfonic acid according to British patent 8162 from 1907 can be obtained.
20 g des 7 · 7'-Dinitrothioindigos oder besser einer diesem Trockengehalt entsprechenden Paste werden mit einer Lösung von etwa 25 g kristallisiertem Schwefelnatrium in 250 ecm Wasser ohne oder mit Zusatz von Schwefel auf etwa 80 ° erhitzt und dabei einige Stunden gerührt. Die erhaltene Paste wird abgesaugt und mit heißem Wasser tüchtig gewaschen.20 g of the 7x7'-dinitrothioindigo or better a dry content corresponding to this Paste are made with a solution of about 25 g of crystallized sodium sulphide in 250 ecm Water with or without the addition of sulfur is heated to about 80 ° for a few hours touched. The paste obtained is filtered off with suction and washed thoroughly with hot water.
Claims (1)
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE252771C true DE252771C (en) |
Family
ID=511097
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DENDAT252771D Active DE252771C (en) |
Country Status (1)
| Country | Link |
|---|---|
| DE (1) | DE252771C (en) |
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0
- DE DENDAT252771D patent/DE252771C/de active Active
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